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United States Department of Agriculture

Agricultural Research Service

Deborah A Samac (Debby)
Research Plant Pathologist


Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
Persistence and diversity of rhizobial bacteria nodulating alfalfa -
Fungicide sensitivity in the wild rice pathogen Bipolaris oryzae -
Pythium species causing damping-off of alfalfa in Minnesota: Identification, pathogenicity and fungicide sensitivity -
Rapid phenotyping of alfalfa root system architecture -
Pythium and Fusarium species causing seed rot and damping-off of alfalfa -
Bacterial and fungal microbiome analysis of alfalfa rhizosphere soils -
Diversity of field isolates of sinorhizobium meliloti nodulating alfalfa -
Characterization of alfalfa populations contrasting for root system architecture (RSA) -
Transgenic expression of medicago truncatula PR10 and PR5 promoters in alfalfa shows pathogen-induced up-regulation of transgene expression -
Genome assembly of the fungus Cochliobolus miyabeanus, and transcriptome analysis during early stages of infection on American wild rice (Zizania palustris L.) -
Castell-Miller, C.V., Gutierrez-Gonzlez, J.J., Tu, Z.J., Bushley, K., Hainaut, M., Henrissat, B., Samac, D.A. 2016. Genome assembly of the fungus Cochliobolus miyabeanus, and transcriptome analysis during early stages of infection on American wild rice (Zizania palustris L.). PLoS One. 11(6):e0154122. doi:10.1371/journal.pone.0154122.
Draft genome sequences of pseudomonas syringae pv. syringae ALF3 isolated from alfalfa -
Harrison, J., Dornbusch, M.R., Samac, D.A., Studholme, D.J. 2016. Draft genome sequences of pseudomonas syringae pv. syringae ALF3 isolated from alfalfa. Genome Announcements. 4(1):e01722-15.
Managing foliar and root rot diseases of alfalfa for improving yield and persistance -
Samac, D.A., Berg, L.E. 2015. Managing foliar and root rot diseases of alfalfa for improving yield and persistance. Western Alfalfa and Forage Symposium. December 2, 2015. Reno, NV..
Seed treatments: New tools for combating seedling diseases of alfalfa in organic and conventional production systems -
Samac, D.A., Blosberg, J., Sathoff, A., Kinkel, L.L. 2014. Seed treatments: New tools for combating seedling diseases of alfalfa in organic and conventional production systems. Forage Focus. December 2014 Pages 8-9.
Capturing the Spatial Variability of Microbial Communties within Agricultural Soils -
Castle, S., Gutknecht, J., Kinkel, L., Rosen, C., Sadowsky, M., Samac, D.A. 2015. Capturing the Spatial Variability of Microbial Communties within Agricultural Soils. Annual Argonne Soil Metagenomics Meeting. October 21-23, 2015. Lisle, IL.
Transgene silencing of sucrose synthase in alfalfa (Medicago sativa L.) stem vascular tissue suggests a role for invertase in cell wall cellulose synthesis -
Samac, D.A., Bucciarelli, B., Miller, S.S., Yang, S.H., O'Rourke, J.A., Shin, S., Vance, C.P. 2015. Transgene silencing of sucrose synthase in alfalfa (Medicago sativa L.) stem vascular tissue suggests a role for invertase in cell wall cellulose synthesis. Biomed Central (BMC) Plant Biology. 15:283. doi:10.1186/s12870-015-0649-4.
Management of seedling damping-off of alfalfa -
Berg, L., Samac, D.A. 2015. Management of seedling damping-off of alfalfa. Forage Focus. August 2015. Page 16.
Metagenomic analysis of microbial communities associated with Heterodera glycines in a suppressive soil -
Hu, W., Chen, S., Samac, D.A., Liu, X. 2015. Metagenomic analysis of microbial communities associated with Heterodera glycines in a suppressive soil[abstract]. 54th Annual Meeting of the Society of Nematologists. East Lansing, MI. July 19-24, 2015. p. 56-57.
Pasteuria endospore attachment to Pratylenchus species -
Oliveira, C.J., Grabau, Z., Samac, D.A., Chen, S. 2015. Pasteuria endospore attachment to Pratylenchus species[abstract]. 54th Annual Meeting of the Society of Nematologists. East Lansing, MI. July 19-24, 2015. p. 118.
The Medicago sativa gene index 1.2: a web-accessible gene expression atlas for investigating expression differences between Medicago sativa subspecies -
O'Rourke, J.A., Fu, F., Bucciarelli, B., Yang, S.S., Samac, D.A., Lamb, J.F., Monteros, M., Graham, M.A., Gronwald, J.W., Krom, N., Li, J., Dai, X., Zhao, P.X., Vance, C.P. 2015. The Medicago sativa gene index 1.2: a web-accessible gene expression atlas for investigating expression differences between Medicago sativa subspecies. BioMed Central (BMC) Genetics. 16:502. DOI: 10.1186/s12864-015-1718-7.
Aphanomyces root rot of alfalfa: Widespread distribution of race 2 in Minnesota -
Samac, D.A. 2015. Aphanomyces root rot of alfalfa: Widespread distribution of race 2 in Minnesota. Forage Quarterly. 2(2):12-13.
Role of forage crops and soil microbes in promoting soil health and productivity -
Samac, D.A., Klatt, C.G. 2015. Role of forage crops and soil microbes in promoting soil health and productivity. Forage Focus. May 2015 Page 10-11.
Complete genome sequence of Clavibacter michiganensis subsp. insidiosus R1-1 using PacBio single-molecule real-time technology Reprint Icon -
Lu, Y., Samac, D.A., Glazebrook, J., Ishimaru, C.A. 2015. Complete genome sequence of Clavibacter michiganensis subsp. insidiosus R1-1 using PacBio single-molecule real-time technology. Genome Announcements. 3:e00396-15.
Mechanisms of qualitative and quantitative resistance to Aphanomyces root rot in alfalfa -
Samac, D.A., Bucciarelli, B., Lamb, J.F. 2015. Mechanisms of qualitative and quantitative resistance to Aphanomyces root rot in alfalfa [abstract]. Oomycete Molecular Genetics Network. p. 34.
Strategies for managing foliar and root rot diseases of alfalfa -
Samac, D.A. 2015. Strategies for managing foliar and root rot diseases of alfalfa [abstract]. In Proceedings of Idaho Hay and Forage Conference, February 26-27, 2015, Burley, Idaho. p. 29-34.
Sustainable green biorefineries -
Samac, D.A. 2015. Sustainable green biorefineries. Forage Focus. March 2015. Pages 10-11.
Identification of molecular markers associated with verticillium wilt resistance in alfalfa (medicago sativa l.) using high-resolution melting -
Zhang, T., Yu, L., McCord, P.H., Miller, D., Bhamidimarri, S., Johnson, D., Monteros, M., Ho, J., Reisen, P., Samac, D.A. 2014. Identification of molecular markers associated with verticillium wilt resistance in alfalfa (medicago sativa l.) using high-resolution melting. PLoS One. 9(12):e115953.
Biodegradation of atrazine by three transgenic grasses and alfalfa expressing a modified bacterial atrazine chlorohydrolase gene Reprint Icon -
Vail, A.W., Wang, P., Uefuji, H., Samac, D.A., Vance, C.P., Wackett, L.P., Sadowsky, M.J. 2015. Biodegradation of atrazine by three transgenic grasses and alfalfa expressing a modified bacterial atrazine chlorohydrolase gene. Transgenic Research. 24:475-488.
A mineral seed coating for control of seedling diseases of alfalfa suitable for organic production systems Reprint Icon -
Samac, D.A., Schraber, S., Barclay, S. 2015. A mineral seed coating for control of seedling diseases of alfalfa suitable for organic production systems. Plant Disease. 99(5):614-620.
Science from the field to your shopping cart -
Samac, D.A. 2014. Science from the field to your shopping cart. Forage Focus. August 2014. p. 6-7.
The alfalfa research program in USDA-ARS -
Samac, D.A. 2014. The alfalfa research program in USDA-ARS. 2014 North American Alfalfa Improvement Conference, July 8-10, 2014. Lethbridge, Alberta, Canada. Available: https://www.naaic.org/Meetings/National/2014meeting/NAAIC%20ARS%20abstract%202014.pdf.
Transgene silencing of sucrose synthase in alfalfa stem vascular tissue by a truncated phosphoenolpyruvate carboxylase: sucrose synthase construct -
Gronwald, J.W., Yang, S.H., Bucciarelli, B., Miller, S.S., O'Rourke, J.A., Shin, S., Samac, D.A., Vance, C.P. 2014. Transgene silencing of sucrose synthase in alfalfa stem vascular tissue by a truncated phosphoenolpyruvate carboxylase: sucrose synthase construct. Plant Biology. July 12-16, 2014. Portland, OR.
Characterization of the bacterial stem blight pathogen of alfalfa, Pseudomonas syringae pv. syringae ALF3 -
Samac, D.A., Studholmd, D.J., Ao, S. 2014. Characterization of the bacterial stem blight pathogen of alfalfa, Pseudomonas syringae pv. syringae ALF3. American Phytopathological Society Annual Meeting. August 9-13, 2014, Minneapolis, MN. Available: http://www.apsnet.org/meetings/Documents/2014_meeting_abstracts/aps2014abP03.htm.
Complete genome sequence of Clavibacter michiganensis subsp. insidiosus -
Lu, Y., Samac, D.A., Ishimaru, C.A., Glazebrook, J. 2014. Complete genome sequence of Clavibacter michiganensis subsp. insidiosus. American Phytopathological Society Annual Meeting. August 9-13, 2014, Minneapolis, MN. Available: http://www.apsnet.org/meetings/Documents/2014_meeting_abstracts/aps2014abP09.htm.
Alfalfa endophytes as novel sources of antimicrobial compounds that inhibit the growth of human and plant pathogens -
Wass, B., Jordan, A., Louters, M., Samac, D.A., Foster-Hartnett, D. 2014. Alfalfa endophytes as novel sources of antimicrobial compounds that inhibit the growth of human and plant pathogens. American Phytopathological Society Annual Meeting, August 9-13, 2014, Minneapolis, MN. Available: http://www.apsnet.org/meetings/Documents/2014_meeting_abstracts/aps2014abP120.htm.
Assembly and annotation of the wildrice transcriptome challenged by Cochliobolus miyabeanus, the fungal brown spot pathogen -
Castell-Miller, C.V., Gutierrezgonzalez, J.J., Figueroa, M., Garvin, D.F., Samac, D.A. 2014. Assembly and annotation of the wildrice transcriptome challenged by Cochliobolus miyabeanus, the fungal brown spot pathogen. American Phytopathological Society Annual Meeting. August 9-13, 2014. Minneapolis, MN.
Environmental variability and/or stability of stem fiber content and digestibility in alfalfa -
Lamb, J.F., Jung, H.G., Samac, D.A. 2014. Environmental variability and/or stability of stem fiber content and digestibility in alfalfa. Crop Science. DOI: 10.2135.cropsci2014.04.0323.
Plant endophytes as novel sources of antimicrobials: Characterizing fungal isolates from alfalfa -
Wass, B., Samac, D.A., Foster-Hartnett, D. 2014. Plant endophytes as novel sources of antimicrobials: Characterizing fungal isolates from alfalfa. National Conferences on Undergraduate Research. April 3-5, 2014. Lexington, KY.
First report of Stemphylium globuliferum causing Stemphylium Leaf Spot on alfalfa (Medicago sativa) in the U.S. -
Samac, D.A., Willbur, J.F., Behnken, L., Brietenbach, F., Blonde, G., Halfmann, B., Jensen, B., Sheaffer, C.C. 2014. First report of Stemphylium globuliferum causing Stemphylium Leaf Spot on alfalfa (Medicago sativa) in the U.S. Plant Disease. 98(7):993. Available: http://apsjournals.apsnet.org/doi/abs/10.1094/PDIS-08-13-0828-PDN.
First report of race 2 of Colletotrichum trifolii causing anthracnose on alfalfa (Medicago sativa) in Wisconsin -
Samac, D.A., Allen, S., Witte, D., Miller, D., Peterson, J. 2014. First report of race 2 of Colletotrichum trifolii causing anthracnose on alfalfa (Medicago sativa) in Wisconsin. Plant Disease. 98(6):843.
Wisconsin and Minnesota - a preliminary update on 2013 evaluation of Headline fungidice use on alfalfa -
Halfman, B., Blonde, G., Smith, D., Jensen, B., Samac, D.A., Behnken, L., Breitenbach, F. 2013. Wisconsin and Minnesota - a preliminary update on 2013 evaluation of Headline fungidice use on alfalfa. Forage Focus. December 2013. p. 22..
The Medicago sativa Gene Index 1.2: A web-accessible expression atlas of two Medicago sativa sub-species -
Fu, F., O'Rourke, J.A., Bucciarelli, B., Yang, S.S., Samac, D.A., Lamb, J.F., Krom, N., Zhao, P.X., Gronwald, J.W., Vance, C.P. 2013. The Medicago sativa Gene Index 1.2: A web-accessible expression atlas of two Medicago sativa sub-species. Cold Spring Harbor Meeting on Genome Informatics. October 30 - November 2, 2013. Cold Spring Harbor, NY.
Protecting the (alfalfa) crown jewels -
Samac, D.A., Lamb, J.F. 2013. Protecting the (alfalfa) crown jewels. Forage Focus. August 2013. Pages 7-9.
Using microbial community interactions within plant microbiomes to advance an evergreen agricultural revolution -
Evaluating Headline fungicide on alfalfa production and sensitivity of pathogens to pyraclostrobin Reprint Icon -
Samac, D.A., Halfman, B., Jensen, B., Brietenbach, F., Behnken, L., Willbur, J.F., Undersander, D., Blonde, G., Lamb, J.F. 2013. Evaluating Headline fungicide on alfalfa production and sensitivity of pathogens to pyraclostrobin. Plant Health Progress. DOI: 10.1094/PHP-2013-0917-01-RS.
Effect of wheel traffic and green manure treatments on forage yield and crown rot in alfalfa (Medicago sativa) Reprint Icon -
Samac, D.A., Lamb, J.F., Kinkel, L.L., Hanson, L.K. 2013. Effect of wheel traffic and green manure treatments on forage yield and crown rot in alfalfa (Medicago sativa). Plant and Soil. DOI:10.1007/s11104-013-1746-5.
Alfalfa non-feed uses -
Lamb, J.F., Jung, H.G., Russelle, M.P., Sheaffer, C.V., Samac, D.A., Vance, C.P. 2014. Alfalfa non-feed uses. Legume Perspectives. 4:38.
Regulatory patterns of a large family of defensin-like genes expressed in nodules of Medicago truncatula Reprint Icon -
Nallu, S., Silverstein, K.A., Samac, D.A., Bucciarelli, B., Vance, C.P., VandenBosch, K.A. 2013. Regulatory patterns of a large family of defensin-like genes expressed in nodules of Medicago truncatula. PLoS One. 8(4):e60355.
Foliar fungicides on alfalfa: 2012 University extension field trial results from Minnesota and Wisconsin -
Halfman, B., Blonde, G., Jensen, B., Samac, D.A., Behnken, L., Breitenbach, F., Undersander, D. 2013. Foliar fungicides on alfalfa: 2012 University extension field trial results from Minnesota and Wisconsin. Forage Focus. March 2013, p. 16-17.
Spatio-temporal expression patterns of Arabidopsis thaliana and Medicago truncatula defensin-like genes Reprint Icon -
Tesfaye, M., Silverstein, K.T., Nallu, S., Wang, L., Botanga, C.J., Gomez, S., Harrison, M., Samac, D.A., Glazebrook, J., Katagiri, F., Gutierrez-Marcos, J.F., VandenBosch, K.A. 2013. Spatio-temporal expression patterns of Arabidopsis thaliana and Medicago truncatula defensin-like genes. PLoS One. 8(3):e58992.
Powdery mildew -
Samac, D.A. 2014. Powdery mildew. In: Samac, D. A., Rhodes, L. H., and Lamp, W. O., editors. Compendium of Alfalfa Diseases and Pests. 3rd edition. St. Paul, MN: APS Press. p. 16.
Crown wart -
Samac, D.A. 2014. Crown wart. In: Samac, D. A., Rhodes, L. H., and Lamp, W. O., editors. Compendium of Alfalfa Diseases and Pests. 3rd edition. St. Paul, MN: APS Press. p. 30.
Southern Sclerotium blight -
Samac, D.A. 2014. Southern Sclerotium blight. In: Samac, D. A., Rhodes, L. H., and Lamp, W. O., editors. Compendium of Alfalfa Diseases and Pests. 3rd edition. St. Paul, MN: APS Press. p. 35.
Charcoal rot -
Samac, D.A. 2014. Charcoal rot. In: Samac, D. A., Rhodes, L. H., and Lamp, W. O., editors. Compendium of Alfalfa Diseases and Pests. 3rd edition. St. Paul, MN: APS Press. p. 40.
Corky root rot -
Samac, D.A. 2014. Corky root rot. In: Samac, D. A., Rhodes, L. H., and Lamp, W. O., editors. Compendium of Alfalfa Diseases and Pests. 3rd edition. St. Paul, MN: APS Press. p. 56.
Cylindrocladium root and crown rot -
Samac, D.A. 2014. Cylindrocladium root and crown rot. In: Samac, D. A., Rhodes, L. H., and Lamp, W. O., editors. Compendium of Alfalfa Diseases and Pests. 3rd edition. St. Paul, MN: APS Press. p. 56.
Cylindrocarpon root rot -
Samac, D.A. 2014. Cylindrocarpon root rot. In: Samac, D. A., Rhodes, L. H., and Lamp, W. O., editors. Compendium of Alfalfa Diseases and Pests. 3rd edition. St. Paul, MN: APS Press. p. 58.
Violet root rot -
Samac, D.A. 2014. Violet root rot. In: Samac, D. A., Rhodes, L. H., and Lamp, W. O., editors. Compendium of Alfalfa Diseases and Pests. 3rd edition. St. Paul, MN: APS Press. p. 58.
Bacterial leaf spot -
Samac, D.A. 2014. Bacterial leaf spot. In: Samac, D. A., Rhodes, L. H., and Lamp, W. O., editors. Compendium of Alfalfa Diseases and Pests. 3rd edition. St. Paul, MN: APS Press. p. 59.
Crown gall -
Samac, D.A. 2014. Crown gall. In: Samac, D. A., Rhodes, L. H., and Lamp, W. O., editors. Compendium of Alfalfa Diseases and Pests. 3rd edition. St. Paul, MN: APS Press. p. 63.
Dwarf -
Samac, D.A. 2014. Dwarf. In: Samac, D. A., Rhodes, L. H., and Lamp, W. O., editors. Compendium of Alfalfa Diseases and Pests. 3rd edition. St. Paul, MN: APS Press. p. 64.
Alfalfa witches'-broom -
Samac, D.A. 2014. Alfalfa witches'-broom. In: Samac, D. A., Rhodes, L. H., and Lamp, W. O., editors. Compendium of Alfalfa Diseases and Pests. 3rd edition. St. Paul, MN: APS Press. p. 65.
High-temperature flooding injury -
Samac, D.A. 2014. High-temperature flooding injury. In: Samac, D. A., editor. Compendium on Alfalfa Diseases. 3rd edition. St. Paul, MN: APS Press. p. 112.
Aphanomyces root rot of alfalfa: widespread distribution of race 2 -
Samac, D.A., Seitz, V., Ristow, P., Rouse, D. 2012. Aphanomyces root rot: widespread distribution of race 2. Forage Focus. August 2012. p. 8-9.
A novel red clover virus associated with root colonization by Olpidium sp. -
Samac, D.A., Lockhart, B., Riday, H. 2012. A novel red clover virus associated with root colonization by Olpidium sp. [abstract]. 2012 Joint North American Alfalfa Improvement Conference, Trifolium, & Grass Breeders Conference, July 10-12, 2012, Ithaca, New York. Available: http://www.naaic.org/Meetings/files/P32-Samac.pdf.
A public pathogen collection for characterizing disease resistance in alfalfa cultivars -
Samac, D.A., Dornbusch, M.R., Mclaughlin, D.J. 2012. A public pathogen collection for characterizing disease resistance in alfalfa cultivars [abstract]. 2012 Joint North American Alfalfa Improvement Conference, Trifolium, & Grass Breeders Conference, July 10-12, 2012, Ithaca, New York. Available: http://www.naaic.org/Meetings/National/2012meeting/T21-Samac.pdf.
Role of a putative amino acid transporter in fungal disease resistance in alfalfa -
Samac, D.A., Dornbusch, M.R., Foster-Hartnett, D., Tu, Z.J., Gantt, J.S. 2012. Role of a putative amino acid transporter in fungal disease resistance in alfalfa [abstract]. American Phytopathological Society Annual Meeting, August 4-8, 2012, Providence, Rhode Island. Available: http://www.apsnet.org/meetings/Documents/2012_Meeting_Abstracts/aps12abP616.htm.
Alfalfa for maximum livestock nutrition and forage yield -
Samac, D.A., Lamb, J.F., Jung, H.G., Schnurr, J.A. 2012. Alfalfa for maximum livestock nutrition and forage yield. Forage Focus. May 2012. p. 19-20.
Effect of glyphosate application on foliar diseases in glyphosate-tolerant alfalfa Reprint Icon -
Samac, D.A., Foster-Hartnett, D. 2012. Effect of glyphosate application on foliar diseases in glyphosate-tolerant alfalfa. Plant Disease. 96(8):1104-1110.
Redesigning alfalfa for use in mixtures with forage grasses -
Samac, D.A., Lamb, J.F., Russelle, M.P. 2012. Redesigning alfalfa for use in mixtures with forage grasses. Forage Focus. March 2012. p. 16-17.
What's holding us back? Raising the alfalfa yield bar -
Russelle, M.P., Samac, D.A. 2012. What's holding us back? Raising the alfalfa yield bar. Forage Focus. December issue. p. 8-9.
New strategies for managing leaf diseases of alfalfa -
Samac, D.A., Behnken, L.M., Breitenbach, F. 2011. New strategies for managing leaf diseases of alfalfa. Forage Focus. December 2011. p. 7-8.
Population genetic structure, gene flow and recombination of Cochliobolus miyabeanus on cultivated wildrice (Zizania palustris) Reprint Icon -
Castell-Miller, C.V., Samac, D.A. 2012. Population genetic structure, gene flow and recombination of Cochliobolus miyabeanus on cultivated wildrice (Zizania palustris). Plant Pathology. 61(5):903-914.
Modifying crops to increase cell wall digestibility Reprint Icon -
Jung, H.G., Samac, D.A., Sarath, G. 2012. Modifying crops to increase cell wall digestibility. Plant Science. 185-186:65-77.
Medicago truncatula interacting with Clavibacter michiganensis subsp. insidiosus, a pathosystem in the making -
Lu, Y., Glazebrook, J., Ishimaru, C.A., Samac, D.A. 2011. Medicago truncatula interacting with Clavibacter michiganensis subsp. insidiosus, a pathosystem in the making [abstract]. Plant Biology 2011, American Society of Plant Biologists Meeting, August 6-10, 2011, Minneapolis, Minnesota. Available: http://abstracts.aspb.org/pb2011/public/P19/P19052.html.
Multilocus analysis of Phoma sclerotioides isolates from Minnesota -
Castell-Miller, C.V., Dornbusch, M.R., Samac, D.A. 2011. Multilocus analysis of Phoma sclerotioides isolates from Minnesota [abstract]. Plant Biology 2011, American Society of Plant Biologists Meeting, August 6-10, 2011, Minneapolis, Minnesota. Available: http://www.apsnet.org/meetings/Documents/2011_meeting_Abstracts/a11ma164.htm.
Assembling and exploring the Cochliobolus miyabeanus genome of a strain pathogenic on wildrice (Zizania palustris) -
Castell-Miller, C.V., Tu, Z., Vance, C.P., Samac, D.A. 2011. Assembling and exploring the Cochliobolus miyabeanus genome of a strain pathogenic on wildrice (Zizania palustris) [abstract]. 2011 American Phytopathological Society-International Plant Protection Congress Joint Meeting, August 6-10, 2011, Honolulu, Hawaii. Available: http://www.apsnet.org/meetings/Documents/2011_Meeting_Abstracts/a11ma165.htm.
Aluminum resistance mechanisms in oat (Avena sativa L.) Reprint Icon -
Radmer, L., Tesfaye, M., Somers, D.A., Temple, S.J., Vance, C.P., Samac, D.A. 2012. Aluminum resistance mechanisms in oat (Avena sativa L.). Plant and Soil. 351(1&2):121-134.
Alfalfa diseases 101: diagnosing common and emerging disease problems -
Samac, D.A. 2011. Alfalfa diseases 101: diagnosing common and emerging disease problems. Forage Focus. August 2011. p. 4-5.
Expression of coordinately regulated defense response genes and analysis of their role in disease resistance in Medicago truncatula Reprint Icon -
Samac, D.A., Penuela, S., Schnurr, J.A., Hunt, E.N., Foster-Hartnett, D., Vandenbosch, K.A., Gantt, J.S. 2011. Expression of coordinately regulated defense response genes and analysis of their role in disease resistance in Medicago truncatula. Molecular Plant Pathology. 12(8):786-798.
Reducing crown and root diseases of alfalfa for improved yield and stand life -
Samac, D.A. 2010. Reducing crown and root diseases of alfalfa for improved yield and stand life [abstract]. In: 2010 Minnesota Forage Research Symposium, November 17-18, 2010, St. Cloud, Minnesota. p. 26.
USDA-ARS Plant Science Research Unit, St. Paul Alfalfa/Forage Research Program -
Samac, D.A. 2010. USDA-ARS Plant Science Research Unit, St. Paul Alfalfa/Forage Research Program [abstract]. In: 2010 Minnesota Forage Association Risk-Reduction Research Summit, November 16-17, 2010, St. Cloud, Minnesota. p. 6.
Using genomics to develop alfalfa as a biomass crop -
Yang, S.H., Lamb, J.F., Jung, H.G., Samac, D.A., Vance, C.P., Gronwald, J.W. 2010. Using genomics to develop alfalfa as a biomass crop [abstract]. In: 2010 Minnesota Forage Research Symposium, November 17-18, 2010, St. Cloud, Minnesota. p. 23.
Mycoleptodiscus Crown and Root Rot on Alfalfa in Minnesota and Wisconsin -
Samac, D.A., Lamb, J.F., Sheaffer, C.C. 2010. Mycoleptodiscus Crown and Root Rot on Alfalfa in Minnesota and Wisconsin [abstract]. 42nd North American Alfalfa Improvement Conference & 21st Trifolium Conference, July 27-30, 2010, Boise, Idaho.
Genetic Diversity of Phoma sclerotioides Isolates from Minnesota -
Castell-Miller, C.V., Dornbusch, M.R., Samac, D.A. 2010. Genetic Diversity of Phoma sclerotioides Isolates from Minnesota [abstract]. 42nd North American Alfalfa Improvement Conference & 21st Trifolium Conference, July 27-30, 2010, Boise, Idaho.
Identification of Novel Defense Response Genes in Medicago truncatula for Improving Disease Resistance in Alfalfa -
Samac, D.A., Penuela, S., Schnurr, J.A., Hunt, E., Foster-Hartnett, D., Vandenbosch, K.A., Gantt, S. 2010. Identification of Novel Defense Response Genes in Medicago truncatula for Improving Disease Resistance in Alfalfa [abstract]. Vth International Conference on Legume Genomics and Genetics, July 2-8, 2010, Pacific Grove, California. p. 45.
Dig Alfalfa Plants to Assess Root Rots and Yield Potential -
Holen, D., Samac, D.A. 2010. Dig Alfalfa Plants to Assess Root Rots and Yield Potential. Forage Quarterly. 4:2.
microRNAs and microRNA Targets Involved in Alfalfa Stem Development -
Yang, S.H., Valdes-Lopez, O., Naya, L., Gronwald, J.W., Samac, D.A., Hernandez, G., Vance, C.P. 2010. microRNAs and microRNA targets involved in alfalfa stem development [abstract]. Plant Biology 2010: Joint Meeting of the American Society of Plant Biologists and the Canadian Society of Plant Physiologists, July 31 - August 4, 2010, Montreal, Canada. Abstract No. PO8083.
Understanding the Regulation of Cell Wall Composition in Alfalfa -
O'Rourke, J.A., Tesfaye, M., Yang, S.H., Lamb, J.F., Jung, H.G., Vance, C.P., Samac, D.A. 2010. Understanding the Regulation of Cell Wall Composition in Alfalfa [abstract]. Plant and Animal Genome XVIII Conference, January 9-13, 2010, San Diego, California. Available: http://www.intl-pag.org/18/abstracts/P07c_PAGXVIII_799.html.
Rapid and Specific Method for Evaluating Streptomyces Competitive Dynamics in Complex Soil Communities Reprint Icon -
Schlatter, D.C., Samac, D.A., Tesfaye, M., Kinkel, L.L. 2010. Rapid and Specific Method for Evaluating Streptomyces Competitive Dynamics in Complex Soil Communities. Applied and Environmental Microbiology. 76(6):2009-2012.
Mycoleptodiscus Crown and Root Rot of Alfalfa: An Emerging Problem in Minnesota and Wisconsin? -
Samac, D.A. 2009. Mycoleptodiscus Crown and Root Rot of Alfalfa: An Emerging Problem in Minnesota and Wisconsin? Forage Focus. December issue. p. 4.
Biochemical Approaches to Improved Nitrogen Fixation -
Vance, C.P., Schultz, J., Denton, M., Tesfaye, M., Samac, D.A., Russelle, M.P., Hernandez, G., Ramirez, M. 2009. Biochemical approaches to improved nitrogen fixation [abstract]. XIII National Congress of Biochemistry and Plant Molecular Biology and 6th Symposium Mexico-USA, November 9-13, 2009, Guanajuato, Mexico. 2009 CDROM.
microRNAs and microRNA Targets Involved in Alfalfa Stem Development -
Valdes-Lopez, O., Yang, S.H., Foo, C., Gronwald, J.W., Samac, D.A., Hernandez, G., Vance, C.P. 2010. microRNAs and microRNA Targets Involved in Alfalfa Stem Development [abstract]. XVIII Plant and Animal Genome Conference Proceedings, January 9-13, 2010, San Diego, California. Abstract P727.
Single-Feature Polymorphism Discovery in the Transcriptome of Tetraploid Alfalfa (Medicago Sativa) Reprint Icon -
Yang, S.H., Xu, W.W., Tesfaye, M., Lamb, J.F., Jung, H.G., Samac, D.A., Vance, C.P., Gronwald, J.W. 2009. Single-Feature Polymorphism Discovery in the Transcriptome of Tetraploid Alfalfa. The Plant Genome. 2(3):224-232.
Brown Root Rot of Alfalfa -
Hollingsworth, C., Samac, D.A., Peterson, P., Holen, D., Person, H. 2009. Brown Root Rot of Alfalfa. University of Minnesota Extension Service Bulletin. 4 p.
Reducing Alfalfa Brown Root Rot with Crop Rotation -
Hollingsworth, C., Samac, D.A. 2009. Reducing Alfalfa Brown Root Rot with Crop Rotation. University of Minnesota Extension Forage Program. Forage Quarterly. 3(2):2.
Population Genetic Structure of Cochliobolus miyabeanus on Cultivated Wild Rice (Zizania palustris L.) in Minnesota -
Castell-Miller, C.V., Samac, D.A. 2009. Population Genetic Structure of Cochliobolus miyabeanus on Cultivated Wild Rice (Zizania palustris L.) in Minnesota [abstract]. 2009 American Phytopathological Society Annual Meeting, August 1-5, 2009, Portland, Oregon. Available: http://www.apsnet.org/meetings/2009/abstracts/a09ma108.htm.
Medicago truncatula as a Model for Dicot Cell Wall Development Reprint Icon -
Tesfaye, M., Yang, S.H., Lamb, J.F., Jung, H.G., Samac, D.A., Vance, C.P., Gronwald, J.W., Vandenbosch, K.A. 2009. Medicago truncatula as a Model for Dicot Cell Wall Development. BioEnergy Research. 2(1-2):59-76.
Characterization of a bi-pistil mutant in Medicago truncatula Gaertn -
Nair, R., Peck, D., Dundas, I., Samac, D.A., Moore, A., Randles, J. 2008. Characterization of a bi-pistil mutant in Medicago truncatula Gaertn. [abstract]. IV International Conference on Legume Genomics and Genetics, December 7-12, 2008, Puerto Vallarta, Mexico. Abstract No. P92 p. 73.
Identification of genes controlling development of arbuscules in AM symbiosis -
Harrison, M.J., Zhang, Q., Levy, J.G., Jung, J.K., Hong, J.J., Mondo, S.J., Foster-Hartnett, D., Samac, D.A., Starker, C.G., Lenz, P.A., Farell, M.L., Gantt, J.S. 2008. Identification of genes controlling development of arbuscules in AM symbiosis [abstract]. IV International Conference on Legume Genomics and Genetics, December 7-12, 2008, Puerto Vallarta, Mexico. Abstract No. L61. p. 38.
Alfalfa Biomass Germplasms: SFP Detection and Transcriptome Analysis -
Yang, S.H., Xu, W.W., Tesfaye, M., Lamb, J.F., Jung, H.G., Samac, D.A., Vance, C.P., Gronwald, J.W. 2009. Alfalfa Biomass Germplasms: SFP Detection and Transcriptome Analysis [abstract]. XVII Plant and Animal Genome Conference Proceedings, January 10-14, 2009, San Diego, California. Abstract W167.
Physiological and molecular characterization of aluminum resistance in Medicago truncatula -
Chandran, D., Sharopova, N., Vandenbosch, K.A., Garvin, D.F., Samac, D.A. 2008. Physiological and Molecular Characterization of Aluminum Resistance in Medicago truncatula. Biomed Central (BMC) Plant Biology. 8:89. Available: http://www.biomedcentral.com/1471-2229/8/89.
Affect of crop residue on colonization and survival of Phoma sclerotioides -
Samac, D.A., Miyamoto, C., Larsen, J.E., Atkinson, L., Hollingsworth, C.R., Motteberg, C.D. 2008. Affect of crop residue on colonization and survival of Phoma sclerotioides [abstract]. Phytopathology. 98:S139.
Effect of glyphosate on foliar diseases in Roundup Ready alfalfa -
Foster-Hartnett, D., Samac, D.A. 2008. Effect of glyphosate on foliar diseases in Roundup Ready alfalfa [abstract]. Phytopathology. 98:S54.
Expression analysis of Medicago stem internodes identifies genes associated with regulatory control and biogenesis of plant cell walls -
Tesfaye, M., Jung, H.G., Samac, D.A., Gronwald, J.W., Lamb, J.F., Vance, C.P., Vandenbosch, K.A. 2008. Expression analysis of Medicago stem internodes identifies genes associated with regulatory control and biogenesis of plant cell walls [abstract]. American Society of Plant Biologists Annual Meeting, Pan American Congress on Plants and BioEnergy, June 22-25, 2008, Merida, Mexico. Abstract No. P02014. Available: http://abstracts.aspb.org/pb2008/public/P02/P02014.html.
Transcriptome profiling identified novel genes associated with aluminum toxicity, resistance and tolerance in Medicago truncatula Reprint Icon -
Chandran, D., Sharopova, N., Ivashuta, S., Gantt, J., VandenBosch, K.A., Samac, D.A. 2008. Transcriptome profiling identified novel genes associated with aluminum toxicity, resistance and tolerance in Medicago truncatula. Planta. 228:151-166.
Morphological characterization and genetic analysis of a bi-pistil mutant (bip) in Medicago truncatula Gaertn Reprint Icon -
Nair, R.M., Peck, D.M., Dundas, I.S., Samac, D.A., Moore, A., Randles, J.W. 2008. Morphological characterization and genetic analysis of a bi-pistil mutant (bip) in Medicago truncatula. Sexual Plant Reproduction. 21:133-141.
MOLECULAR VARIABILITY OF A MINNESOTA POPULATION OF PHOMA MEDICAGINIS VAR. MEDICAGINIS, THE CAUSAL AGENT OF SPRING BLACK STEM AND LEAF SPOT OF ALFALFA -
Castell-Miller, C., Szabo, L.J., Gale, L.R., O'Neill, N.R., Samac, D.A. 2008. Molecular variability of a Minnesota population of Phoma medicaginis var. medicaginis, the causal agent of spring black stem and leaf spot of alfalfa. Canadian Journal of Plant Pathology. 30:85-96.
CLONING OF AN ALFALFA POLYPHENOL OXIDASE GENE AND EVALUATION OF ITS POTENTIAL IN PREVENTING POSTHARVEST PROTEIN DEGRADATION -
Sullivan, M.L., Hatfield, R.D., Samac, D.A. 2008. Cloning of an alfalfa polyphenol oxidase gene and evaluation of its potential in preventing postharvest protein degradation. Journal of the Science of Food and Agriculture. 88(8):1406-1414.
Genetic dissection of resistance to anthracnose and powdery mildew in Medicago truncatula Reprint Icon -
Ameline-Torregrosal, C., Cazaux, M., Danesh, D., Chardon, F., Cannon, S.B., Esquerre-Tugaye, M., Dumas, B., Young, N.D., Samac, D.A., Huguet, T., Jacquet, C. 2008. Genetic dissection of resistance to anthracnose and powdery mildew in Medicago truncatula. Molecular Plant-Microbe Interactions. 21:61-69.
Genetic dissection of resistance to anthracnose and powdery mildew in Medicago truncatula -
Ameline-Torregrosal, C., Cazaux, M., Danesh, D., Chardon, F., Cannon, S.B., Esquerre-Tugaye, M., Dumas, B., Young, N.D., Samac, D.A., Huguet, T., Jacquet, C. 2008. Genetic dissection of resistance to anthracnose and powdery mildew in Medicago truncatula. Molecular Plant-Microbe Interactions. 21(1):61-69.
Region and field level distributions of aster yellows phytoplasma in small grains crops Reprint Icon -
Hollingsworth, C.R., Samac, D.A., Atkinson, L.M., Larsen, J.E., Motteberg, C.D., Abrahamson, M., Glogoza, P., MacRae, I.V. 2008. Region and field level distributions of aster yellows phytoplasma in small grains crops. Plant Disease. 92(4):623-630.
Roles of defense response genes in plant-microbe interactions -
Samac, D.A., Penuela, S., Foster-Hartnett, D., Hunt, E.N., Schnurr, J.A. 2007. Roles of defense response genes in plant-microbe interactions [abstract]. Phytopathology. 97:S103.
Aster yellows incidence and distribution within commercial small grains fields in Minnesota -
Atkinson, L.M., Hollingsworth, C.R., Larsen, J.E., Samac, D.A., Motteberg, C.D. 2007. Aster yellows incidence and distribution within commercial small grains fields in Minnesota [abstract]. Phytopathology. 97:S5.
Infection and development of Phoma medicaginis on moderately resistant and susceptible alfalfa genotypes -
Castell-Miller, C.V., Zeyen, R.J., Samac, D.A. 2007. Infection and development of Phoma medicaginis on moderately resistant and susceptible alfalfa genotypes. Canadian Journal of Plant Pathology. 29:290-298.
A system for identification of candidate genes controlling cell wall synthesis in alfalfa stems -
Gebeyaw, M.T., Lamb, J.F., Samac, D.A., Gronwald, J.W., Jung, H.G. 2007. A system for identification of candidate genes controlling cell wall synthesis in alfalfa stems [abstract]. Physiologia Plantarum. 130:259.
Alfalfa -
Gebeyaw, M.T., Samac, D.A., Lamb, J.F. 2008. Alfalfa. In: Kole, C., Hall, T.C., editors. A Compendium of Transgenic Crop Plants. Volume 3. Oxford, UK: Blackwell Publishing. p. 199-210.
Recent advances in legume-microbe interactions: recognition, defense response and symbiosis from a genomic perspective Reprint Icon -
Samac, D.A., Graham, M.A. 2007. Recent advances in legume-microbe interactions: recognition, defense response, and symbiosis from a genomic perspective. Plant Physiology. 144:582-587.
Molecular and cytological responses of Medicago truncatula to Erysiphe pisi -
Foster-Hartnett, D., Danesh, D., Penuela, S., Sharopova, N., Endre, G., VandenBosch, K., Young, N.D., Samac, D.A. 2007. Molecular and cytological responses of Medicago truncatula to Erysiphe pisi. Molecular Plant Pathology. 8(3):307-319.
A comparative study of alfalfa and Medicago truncatula stem traits: morphology, chemical composition, and ruminal digestibility -
Schnurr, J.A., Jung, H.G., Samac, D.A. 2007. A comparative study of alfalfa and Medicago truncatula stem traits: morphology, chemical composition, and ruminal digestibility. Crop Science. 47:1672-1680.
Alfalfa root health and disease management: a foundation for maximizing production potential and stand life -
Samac, D.A., Malvick, D., Hudelson, B., Gibbs, A., Hollingsworth, C. 2007. Alfalfa root health and disease management: a foundation for maximizing production potential and stand life. Forage Focus. p. 6-7.
Alfalfa leaf protein and stem cell wall polysaccharide yields under hay and biomass management systems -
Lamb, J.F., Jung, H.G., Sheaffer, C.C., Samac, D.A. 2007. Alfalfa leaf protein and stem cell wall polysaccharide yields under hay and biomass management systems. Crop Science. 47:1407-1415.
DISTRIBUTION OF PHOMA SCLEROTIOIDES ON ALFALFA AND WINTER WHEAT CROPS IN THE NORTH CENTRAL U.S. -
Larsen, J.E., Hollingsworth, C.R., Flor, J., Dornbusch, M.R., Simpson, N.L., Samac, D.A. 2007. Distribution of Phoma sclerotioides on alfalfa and winter wheat crops in the North Central U.S. Plant Disease. 91:551-558.
Medicago GeneChips: a new tool for alfalfa genomics research -
Tesfaye, M., Samac, D.A., Vance, C.P. 2006. Medicago GeneChips: a new tool for alfalfa genomics research. Forage Focus. p. 3.
ALFALFA LEAF PROTEIN AND STEM CELL WALL POLYSACCHARIDE YIELDS AND THEORETICAL ETHANOL PRODUCTION UNDER HAY AND BIOMASS MANAGEMENT SYSTEMS -
Lamb, J.F., Jung, H.G., Sheaffer, C.C., Samac, D.A. 2006. Alfalfa leaf protein and stem cell wall polysaccharide yields and theoretical ethanol production under hay and biomass management systems [abstract]. 40th North American Alfalfa Improvement Conference, July 17-19, 2006, Bloomington, Minnesota. Available: http://www.naaic.org/Meetings/National/2006meeting/procedings/Lamb.PDF.
Alfalfa leaf protein and stem cell wall polysaccharide yields and theoretical ethanol production under hay and biomass management systems -
Lamb, J.F., Jung, H.G., Sheaffer, C.C., Samac, D.A. 2006. Alfalfa leaf protein and stem cell wall polysaccharide yields and theoretical ethanol production under hay and biomass management systems [abstract]. North American Alfalfa Improvement Conference, July 16–19, 2006, Bloomington, MN. Available: http://www.naaic.org/Meetings/National/2006meeting/procedings/Lamb.PDF.
TRANSCRIPTOMICS -
Kuster, H., Becker, A., Samac, D.A., Tesfaye, M. 2006. Transcriptomics. In: The Medicago truncatula Handbook. The Samuel Roberts Noble Foundation, Ardmore, OK. Available: http://www.noble.org/MedicagoHandbook/.
INOCULATION AND GROWTH WITH FOLIAR PATHOGENIC FUNGI -
Ellwood, S., Kamphuis, L., Pfaff, T., Oliver, R., Samac, D.A., Foster-Hartnett, D., Tivoli, B., Onfroy, C., Moussart, A. 2006. Inoculation and growth with foliar pathogenic fungi. In: The Medicago truncatula Handbook. The Samuel Roberts Noble Foundation, Ardmore, OK. Available: http://www.noble.org/MedicagoHandbook/.
PHOMA SCLEROTIOIDES CONFIRMED AS A PATHOGEN OF WINTER WHEAT AND ITS DISTRIBUTION IN NORTHWEST MINNESOTA -
Hollingsworth, C.R., Samac, D.A., Atkinson, L.M. 2006. Phoma sclerotioides confirmed as a pathogen of winter wheat and its distribution in northwest Minnesota [abstract]. American Phytopathological Society Abstracts. 2006 North Central Division Meeting, June 13-15, 2006, Fargo, North Dakota. Available: http://www.apsnet.org/meetings/div/nc06abs.asp.
THE AFFYMETRIX MEDICAGO GENECHIP ARRAY IS APPLICABLE FOR TRANSCRIPT ANALYSIS OF ALFALFA (MEDICAGO SATIVA) -
Tesfaye, M., Silverstein, K.A., Bucciarelli, B., Samac, D.A., Vance, C.P. 2006. The Affymetrix Medicago Genechip Array is applicable for transcript analysis of alfalfa (Medicago sativa). Functional Plant Biology. 33:783-788.
TRANSCRIPT ANALYSIS OF MEDICAGO SPP. -
Tesfaye, M., Bucciarelli, B., Samac, D.A., Vance, C.P. 2006. Transcript analysis of Medicago spp. Third International Conference on Legume Genomics and Genetics, April 9-13, 2006, Brisbane, Australia. p. 79.
RECRUITMENT OF NOVEL CALCIUM-BINDING PROTEINS FOR ROOT NODULE SYMBIOSIS IN MEDICAGO TRUNCATULA -
Liu, J., Miller, S.S., Graham, M., Bucciarelli, B., Catalano, C.M., Sherrier, D.J., Samac, D.A., Ivashuta, S., Fedorova, M., Matsumoto, P., Gantt, J.S., Vance, C.P. 2006. Recruitment of novel calcium-binding proteins for root nodule symbiosis in Medicago truncatula. Plant Physiology. 141:167-177.
TRANSCRIPT PROFILING IN MEDICAGO TRUNCATULA TO IDENTIFY GENES INVOLVED IN ABIOTIC AND BIOTIC STRESS RESPONSES -
Samac, D.A., Foster-Hartnett, D., Chandran, D., Ivashuta, S., Sharopova, N., Vandenbosch, K.A. 2006. Transcript profiling in Medicago truncatula to identify genes involved in abiotic and biotic stress responses [abstract]. Plant and Animal Genome Abstracts. Available: http://www.intl-pag.org/14/abstracts/PAG14_W96.html.
TRANSCRIPT ANALYSIS OF EARLY NODULATION EVENTS IN MEDICAGO TRUNCATULA -
Lohar, D., Sharopova, N., Endre, G., Penuela, S., Samac, D.A., Town, C., Silverstein, K.A., VandenBosch, K.A. 2006. Transcript analysis of early nodulation events in Medicago truncatula. Plant Physiology. 140:221-234.
INSIGHTS INTO SYMBIOTIC NITROGEN FIXATION IN MEDICAGO TRUNCATULA -
Tesfaye, M., Samac, D.A., Vance, C.P. 2006. Insights into symbiotic nitrogen fixation in Medicago truncatula. Molecular Plant-Microbe Interactions. 19:330-341.
DEVELOPMENT OF ALFALFA FOR ETHANOL PRODUCTION AND OTHER BIOPRODUCTS -
Samac, D.A., Jung, H.G., Lamb, J.F. 2005. Development of alfalfa for ethanol production and other bioproducts. Forage Focus. p. 6.
MOLECULAR CHARACTERIZATION OF AL-INDUCED GENES IN MEDICAGO TRUNCATULA AND EXAMINATION OF THEIR ROLE IN AL TOLERANCE -
Chandran, D., Ivashuta, S., Gantt, S., Samac, D.A. 2005. Molecular characterization of Al-induced genes in Medicago truncatula and examination of their role in Al tolerance [abstract]. American Society of Plant Biologists Annual Meeting. Abstract No. 511.
CHARACTERIZATION OF TRANSGENIC OAT PLANTS FOR ENHANCED ALUMINUM TOLERANCE VIA EXPRESSION OF AN ALFALFA MDH GENE -
Radmer, L., Garvin, D.F., Somers, D., Samac, D.A. 2005. Characterization of transgenic oat plants for enhanced aluminum tolerance via expression of an alfalfa MDH gene [abstract]. Plant Biology Annual Meeting. Abstract No. 512.
DEVELOPMENT OF TRANSGENIC PLANTS EXPRESSING A BACTERIAL ENZYME GENE TO REMOVE AND DEGRADE AN ENVIRONMENTALLY PERSISTENT HERBICIDE, ATRAZINE -
Uefuji, H., Wang, L., Samac, D.A., Shapir, N., Wackett, L.P., Vance, C.P., Sadowsky, M.J. 2005. Development of transgenic plants expressing a bacterial enzyme gene to remove and degrade an environmentally persistent herbicide, atrazine [abstract]. Plant Biology Annual Meeting. Abstract No. 1111.
SHOOT SIGNALS AND MOLECULAR REGULATION OF P-DEFICIENCY INDUCED GENES IN CLUSTER ROOTS OF WHITE LUPIN -
Liu, J., Yamagishi, M., Uhde-Stone, C., Bucciarelli, B., Samac, D.A., Allan, D., Vance, C.P. 2005. Shoot signals and molecular regulation of P-deficiency induced genes in cluster roots of white lupin. In: Li, C.J., Zhang, F.S., Doberman, A., editors. Plant Nutrition for Food Security, Human Health and Environmental Protection. Proceedings of the 15th Plant Nutrition Colloquium, September 14-19, 2005, Beijing, The People's Republic of China. Beijing: Tsinghua University Press. p. 94-96.
PHYSIOLOGICAL AND MOLECULAR EXAMINATION OF ALUMINUM TOLERANCE IN MEDICAGO TRUNCATULA -
Chandran, D., Sharopova, N., Garvin, D.F., VandenBosch, K., Samac, D.A. 2005. Physiological and molecular examination of aluminum tolerance in Medicago truncatula [abstract]. 2005 Model Legume Congress, June 5-9, 2005, Pacific Grove, California. Abstract No. S11.
USING MICROARRAY ANALYSIS TO IDENTIFY GENES ASSOCIATED WITH BASAL RESISTANCE AND THE HYPERSENSITIVE RESPONSE (HR) IN MEDICAGO TRUNCATULA -
Foster-Hartnett, D., Danesh, D., Penuela, S., Sharopova, N., VandenBosch, K.A., Young, N.D., Samac, D.A. 2005. Using microarray analysis to identify genes associated with basal resistance and the hypersensitive response (HR) in Medicago truncatula [abstract]. 2005 Model Legume Congress, June 5-9, 2005, Pacific Grove, California. Abstract No. P54.
BACTERIAL SYMBIOSIS TRIGGERS THE EXPRESSION OF PLANT RESISTANCE GENES AND INDUCES THE TRANSCRIPTION OF ORGANIC ACID METABOLISM AND AMMONIUM ASSIMILATION GENES IN MEDICAGO TRUNCATULA -
Tesfaye, M.T., Samac, D.A., Vance, C.P. 2005. Bacterial symbiosis triggers the expression of plant resistance genes and induces the transcription of organic acid metabolism and ammonium assimilation genes in Medicago truncatula. Model Legume Congress, June 5-9, 2005, Pacific Grove, California. Paper No. S48, p. 126.
CARBON AND NITROGEN METABOLISM IN LEGUME NODULES -
Vance, C.P., Miller, S.S., Liu, J., Gantt, J.S., Samac, D.A. 2005. Carbon and nitrogen metabolism in legume nodules. 2005 Model Legume Congress, June 5-9, 2005, Pacific Grove, California. Paper No. S32, p. 43.
DEVELOPMENT OF ALFALFA (MEDICAGO SATIVA L.) AS A BIOFUELS FEEDSTOCK -
Samac, D.A., Jung, H.G., Lamb, J.F. 2006. Development of alfalfa (Medicago sativa L.) as a feedstock for production of ethanol and other bioproducts. In: Minteer, S., editor. Alcoholic Fuels. Boca Raton, FL: CRC Press. p. 79-98.
BIODEGRADATION OF ATRAZINE IN TRANSGENIC PLANTS EXPRESSING A MODIFIED BACTERIAL ATRAZINE CHLOROHYDROLASE (ATZA) GENE -
Wang, L., Samac, D.A., Shapir, N., Wackett, L.P., Vance, C.P., Olszewski, N.E., Sadowsky, M.J. 2005. Biodegradation of atrazine in transgenic plants expressing a modified bacterial atrazine chlorohydrolase (atzA) gene. Plant Biotechnology Journal. 3:475-486.
TRANSCRIPT PROFILING TO IDENTIFY GENES ASSOCIATED WITH DISEASE RESISTANCE IN MEDICAGO TRUNCATULA -
Samac, D.A., Foster-Hartnett, D., Penuela, S., Sharopova, N., VandenBosch, K.A. 2005. Transcript profiling to identify genes associated with disease resistance in Medicago truncatula [abstract]. 2nd Australian Model Legume Workshop, April 5-8, 2005, Rottnest Island, Australia. Abstract No. 20.
ROOT NODULE SPECIFIC CALMODULIN-LIKE PROTEINS; CO-OPTING GENES FOR SYMBIOSIS -
Liu, J., Miller, S.S., Graham, M., Bucciarelli, B., Catalano, C.M., Sherrier, D.J., Samac, D.A., Ivashuta, S., Fedorova, M., Matsumoto, P., Gantt, J.S., Vance, C.P. 2005. Root nodule specific calmodulin-like proteins; co-opting genes for symbiosis. 2nd Australian Model Legume Workshop Proceedings, April 5-8, 2005, Rottnest Island, Western Australia. p. 13.
AGROBACTERIUM TUMEFACIENS-MEDIATED TRANSFORMATION OF THE FORAGE LEGUME ALFALFA (MEDICAGO SATIVA) -
Samac, D.A., Austin-Phillips, S. 2006. Alfalfa (Medicago sativa L.). In: Wang, K., editor. Methods in Molecular Biology, Vol. 343, Agrobacterium Protocols. 2nd edition. Totowa, NJ: Humana Press. p. 301-311.
GENOME CLUSTERING OF NOVEL CALCIUM BINDING PROTEINS INVOLVED IN ROOT NODULE SYMBIOSIS -
Miller, S.S., Liu, J., Graham, M., Fedorova, M., Bucciarelli, B., Catalano, C., Sherrier, J., Matsumoto, P., Samac, D.A., Gantt, S., Vance, C.P. 2005. Genome clustering of novel calcium binding proteins involved in root nodule symbiosis [abstract]. Plant and Animal Genome XIII Abstracts. Paper No. W-206, p. 49.
SIGNALING OF PHOSPHORUS DEFICIENCY INDUCED GENE EXPRESSION IN WHITE LUPIN REQUIRES SUGARS AND PHLOEM TRANSPORT -
Liu, J., Samac, D.A., Bucciarelli, B., Allan, D.L., Vance, C.P. 2005. Signaling of phosphorus deficiency induced gene expression in white lupin requires sugars and phloem transport. Plant Journal. 41:257-268.
CLONING AND CHARACTERIZATION OF RED CLOVER POLYPHENOL OXIDASE CDNAS AND EXPRESSION OF ACTIVE PROTEIN IN ESCHERICHIA COLI AND TRANSGENIC ALFALFA -
Sullivan, M.L., Hatfield, R.D., Thoma, S., Samac, D.A. 2004. Cloning of red clover polyphenol oxidase cdnas and expression of active protein in escherichia coli and transgenic alfalfa. Plant Physiology. 136:3234-3244.
IDENTIFICATION AND CHARACTERIZATION OF NOVEL CALCIUM BINDING PROTEINS IN THE SYMBIOSOME SPACE OF M. TRUNCATULA -
Liu, J., Miller, S.S., Bucciarelli, B., Fedorova, M., Matsumoto, P., Graham, M., Sherrier, J., Samac, D.A., Gantt, S., Vance, C.P. 2004. Identification and characterization of novel calcium binding proteins in the symbiosome space of M. truncatula [abstract]. American Society of Plant Biologists Annual Meeting, July 24-28, 2004, Orlando, FL. Abstract No. 24004.
GENE TRANSCRIPTION PROFILING OF MEDICAGO TRUNCATULA DUE TO CHANGING NUTRIENT NITROGEN SUPPLY -
Gebeyaw, M.T., Samac, D.A., VandenBosch, K.A., Vance, C.P. 2004. Gene transcription profiling of Medicago truncatula due to changing nutrient nitrogen supply [abstract]. 19th North American Alfalfa Improvement Conference, July 19-21, 2004, Ste. Foy, Quebec, Canada. Available: http://www.naaic.org/Meetings/National/2004NAAIC&TC/2004abstracts/mtesfaye.pdf.
IDENTIFICATION OF PHOMA SCLEROTIOIDES, THE CAUSAL AGENT OF BROWN ROOT ROT, IN WISCONSIN AND MINNESOTA -
Samac, D.A., Hollingsworth, C.R. 2004. Identification of Phoma sclerotioides, the causal agent of brown root rot, in Wisconsin and Minnesota [abstract]. North American Alfalfa Improvement Conference, July 19-21, 2004, Ste. Foy, Quebec, Canada. Abstract No. 51.
TRANSCRIPT PROFILING IN MEDICAGO TRUNCATULA RESPONDING TO INFECTION BY ERYSIPHE PISI AND COLLETOTRICHUM TRIFOLII -
Samac, D.A., Foster-Hartnett, D., Penuela, S., Danesh, D., Vandenbosch, K. 2004. Transcript profiling in Medicago truncatula responding to infection by Erysiphe pisi and Colletotrichum trifolii [abstract]. 19th North American Alfalfa Improvement Conference, July 19-21, 2004, Ste Foy, Quebec, Canada. Available: http://www.naaic.org/Meetings/National/2004NAAIC&TC/2004abstracts/dsamac-2.pdf.
DETECTION OF BROWN ROOT ROT OF ALFALFA IN MINNESOTA AND WISCONSIN -
Samac, D.A., Hollingsworth, C.R. 2005. Detection of brown root rot of alfalfa in Minnesota and Wisconsin [abstract]. Phytopathology. 95:S165.
GENE EXPRESSION IN DEVELOPING SEED COATS OF MEDICAGO SATIVA -
Samac, D.A., Dornbusch, M.R. 2004. Gene expression in developing seed coats of Medicago sativa [abstract]. Second International Conference on Legume Genomics and Genetics, June 7-11, 2004, Dijon, France. p. 266.
LEGUME IMPROVEMENT THROUGH FUNCTIONAL GENOMIC STUDIES OF N AND P ACQUISITION -
Vance, C.P., Uhde-Stone, C., Ramirez, M., Fedorova, M., Allan, D., Graham, M., Liu, J., Samac, D.A., Lara, M., Hernandez, G. 2004. Legume improvement through functional genomic studies of N and P acquisition. In: Legumes for the Benefit of Agriculture, Nutrition and the Environment. Second International Conference on Legume Genomics and Genetics, June 7-11, 2004, Dijon, France. p. 304.
TRANSGENIC ALFALFA SECRETES A FUNGAL ENDOCHITINASE PROTEIN TO THE RHIZOSPHERE -
Tesfaye, M., Denton, M.D., Samac, D.A., Vance, C.P. 2005. Transgenic alfalfa secretes a fungal endochitinase protein to the rhizosphere. Plant and Soil Journal. 269:233-243.
SPATIAL VARIATION IN STREPTOMYCES GENETIC COMPOSITION AND DIVERSITY IN A PRAIRIE SOIL -
Davelos, A.L., Xiao, K., Samac, D.A., Martin, A.P., Kinkel, L.L. 2004. Spatial variation in Streptomyces genetic composition and diversity in a prairie soil. Microbial Ecology. 48:601-612.
HISTOCHEMICAL AND TRANSCRIPTOME ANALYSIS OF THE INTERACTIONS BETWEEN MEDICAGO TRUNCATULA AND THE PATHOGENS COLLETOTRICHUM TRIFOLII AND ERISYPHE PISI -
Foster-Hartnett, D., Penuela, S., Danesh, D., Sharapova, N., VandenBosch, K.A., Young, N.D., Samac, D.A. 2004. Histochemical and transcriptome analysis of the interactions between Medicago truncatula and the pathogens Colletotrichum trifolii and Erisyphe pisi [abstract]. Second International Conference on Legume Genomics and Genetics, June 7-11, 2004, Dijon, France. p. 239.
AN EVALUATION OF ALUMINUM TOLERANCE IN MEDICAGO TRUNCATULA -
Chandran, D., Garvin, D.F., Samac, D.A. 2004. An evaluation of aluminum tolerance in Medicago truncatula [abstract]. American Society of Plant Biologists Annual Meeting, July 24-28, 2004, Orlando, FL. Abstract No. 692.
A COMPARISON OF CONSTITUTIVE PROMOTERS FOR EXPRESSION OF TRANSGENES IN ALFALFA (MEDICAGO SATIVA) -
Samac, D.A., Dornbusch, M., Gebeyaw, M.T., Purev, S., Temple, S.J. 2004. A comparison of constitutive promoters for expression of transgenes in alfalfa (Medicago sativa). Transgenic Research. 13:349-361.
SPATIAL VARIATION IN THE FREQUENCY AND INTENSITY OF ANTIBIOTIC INTERACTIONSAMONG STREPTOMYCETES FROM PRAIRIE SOIL -
Davelos, A.L., Kinkel, L.L., Samac, D.A. 2004. Spatial variation in the frequency and intensity of antibiotic interactions among streptomycetes from prairie soil. Applied and Environmental Microbiology. 70(2):1051-1058.
BROWN ROOT ROT OF ALFALFA: WHAT'S THE BIG DEAL? -
Peterson, P., Samac, D.A., Hollingsworth, C. 2003. Brown root rot of alfalfa: what's the big deal? Minnesota Forage and Grassland Council Forage Connection Newsletter. p. 7.
EXPRESSION OF UDP-GLUCOSE DEHYDROGENASE REDUCES CELL-WALL POLYSACCHARIDE CONCENTRATION AND INCREASES XYLOSE CONTENT IN ALFALFA STEMS -
Samac, D.A., Litterer, L., Temple, G., Jung, H.G., Somers, D.A. 2004. Expression of UDP-glucose dehydrogenase reduces cell-wall polysaccharide concentration and increases xylose content in alfalfa stems. Applied Biochemistry and Biotechnology. 116(1):1167-1182.
THE INFLUENCE OF ORGANIC ACID EXUDATION IN ALFALFA ON ALUMINUM TOLERANCE, NUTRIENT ACQUISITION, AND BACTERIAL DIVERSITY -
Samac, D.A. 2003. Influence of organic acid exudation in alfalfa on aluminum tolerance, nutrient acquisition, and bacterial diversity. Information Systems for Biotechnology News Report. Available: http://www.isb.vt.edu/news/2003/artspdf/nov0301.pdf
IMPROVING THE LEGUME-RHIZOBIUM SYMBIOSIS: CAN GENOMICS AND MOLECULAR GENETICS HELP? -
Fedorova, M., Denton, M., Schulze, J., Liu, J., Graham, M., Allan, D., Samac, D.A., Vance, C.P. 2004. Improving the legume-rhizobium symbiosis: can genomics help? In: Tikonovich, I., editor. Molecular Plant Microbe Interactions: New Bridges Between Past and Future. Kluwer Academic Publishers. p. 29-31.
MODIFICATION OF THE RHIZOSPHERE BY CLUSTER ROOTS OF PHOSPHORUS-STRESSED WHITE LUPIN -
REGULATION OF PHOSPHATE DEFICIENCY INDUCED GENES IN NITROGEN FIXING NODULES AND IN REPRODUCTIVE TISSUES OF TRANSGENIC ALFALFA -
Liu, J., Samac, D.A., Allan, D., Vance, C.P. 2003. Regulation of phosphate deficiency induced genes in nitrogen fixing nodules and in reproductive tissues of transgenic alfalfa [abstract]. American Society of Plant Biologists Annual Meeting. Available: http://Z16.133.76.127/pb2003/public/P39/0210.html.
CHARACTERIZATION OF PHOSPHATE DEFICIENCY INDUCED GENES FROM WHITE LUPIN AND ANALYSIS OF PROMOTER ACTIVITY IN TRANSGENIC PLANTS -
ALFALFA FOR BIOPHARMACEUTICALS? -
Gebeyaw, M.T., Denton, M.D., Samac, D.A., Vance, C.P. 2003. Alfalfa for biopharmaceuticals?. Molecular Breeding of Forage and Turf Conference. Available: https://www.register-for.com/mbft/AbstractView.Asp?AbstractId=Abstract29fd
CLONING OF RED CLOVER AND ALFALFA POLYPHENOL OXIDASE GENES AND EXPRESSION OF ACTIVE ENZYMES IN TRANSGENIC ALFALFA -
Sullivan, M.L., Thoma, S., Samac, D.A., Hatfield, R.D. 2004. Cloning of red clover and alfalfa polyphenol oxidase genes and expression of active enzymes in transgenic alfalfa. In: Hopkins, A., Wang, Z-Y., Mian, R., Sledge, M., Barker, R.W. editors. Molecular Breeding of Forage and Turf. Netherlands: Kluwer Academic Publishers. p. 189-195.
EXPRESSION OF UDP-GLUCOSE DEHYDROGENASE INCREASES ACCUMULATION OF ARABINOSE AND XYLOSE IN ALFALFA STEMS -
Samac, D.A., Jung, H.G., Litterer, L., Somers, D.A., Temple, G.G. 2003. Expression of UDP-glucose dehydrogenase increases accumulation of arabinose and xylose in alfalfa stems [abstract]. Biotechnology for Fuels and Chemicals Symposium Proceedings. p. 23.
INFLUENCE OF ENHANCED MALATE DEHYDROGENASE EXPRESSION BY ALFALFA ON DIVERSITY OF RHIZOBACTERIA AND SOIL NUTRIENT AVAILABILITY -
Tesfaye, M., Dufault, N.S., Dornbusch, M.R., Allan, D.L., Vance, C.P., Samac, D.A. 2003. Influence of enhanced malate dehydrogenase expression by alfalfa on diversity of rhizobacteria and soil nutrient availability. Soil Biology and Biochemistry. 35:1103-1113.
PLANT IMPROVEMENT FOR TOLERANCE TO ALUMINUM IN ACID SOILS--A REVIEW -
Samac, D.A., Tesfaye, M. 2003. Plant improvement for tolerance to aluminum in acid soils. A review. Plant Cell Tissue And Organ Culture. 75(3):189-207.
EXPRESSION OF ORYZACYSTATIN I AND II IN ALFALFA INCREASES RESISTANCE TO THEROOT-LESION NEMATODE -
SAMAC, D.A., SMIGOCKI, A.C. EXPRESSION OF ORYZACYSTATIN I AND II IN ALFALFA INCREASES RESISTANCE TO THE ROOT-LESION NEMATODE. PHYTOPATHOLOGY. 2003. V. 93. P. 799-804.
RECENT ADVANCES IN LEGUME TRANSFORMATION -
SOMERS, D.A., SAMAC, D.A., OLHOFT, P.M. RECENT ADVANCES IN LEGUME TRANSFORMATION. PLANT PHYSIOLOGY. 2003. V. 131. P. 892-899.
MICROARRAY ANALYSIS OF PATHOGEN INTERACTIONS WITH MEDICAGO TRUNCATULA -
PLANT DENSITY AND MATURITY EFFECTS ON LEAF AND STEM YIELD IN ALFALFA -
POPULATION DENSITY AND HARVEST MATURITY EFFECTS ON LEAF AND STEM QUALITY IN ALFALFA -
LAMB, J.F., SHEAFFER, C.C., SAMAC, D.A. 2003. POPULATION DENSITY AND HARVEST MATURITY EFFECTS ON LEAF AND STEM YIELD IN ALFALFA. AGRONOMY JOURNAL. 95:635-641.
FUNCTIONAL ANALYSIS OF DIFFERENT PHOSPHATE DEFICIENCY INDUCED PROMOTERS IN TRANSGENIC ALFALFA -
Liu, J., Samac, D.A., Allan, D., Vance, C.P. 2002. Functional analysis of different phosphate deficiency induced promoters in transgenic alfalfa. American Society of Plant Biologists Annual Meeting. Available: http://Z16.133.76.127/pb2002/public/P51/0889.html.
OVEREXPRESSION OF A NODULE-ENHANCED MALATE DEHYDROGENASE INCREASES NITROGEN FIXATION IN ALFALFA -
Denton, M.D., Schulze, J., Temple, S.J., Russelle, M.P., Allan, D., Samac, D.A., Vance, C.P. 2002. Overexpression of a nodule-enhanced malate dehydrogenase increases nitrogen fixation in alfalfa. American Society of Plant Biologists Annual Meeting. Available: http://Z16.133.76.127/pb2002/public/P60/1042.html.
EFFECTS OF ANTIBIOTIC-PRODUCING STREPTOMYCES SPP. ON NODULATIONS AND LEAF SPOT IN ALFALFA -
SAMAC, D.A., WILLERT, A.M., MCBRIDE, M.J., KINKEL, L.L. EFFECTS OF ANTIBIOTIC-PRODUCING STREPTOMYCES SPP. ON NODULATIONS AND LEAF SPOT IN ALFALFA. APPLIED SOIL ECOLOGY. 2003. V. 22. P. 55-66.
NEW USES FOR ALFALFA: THE POTENTIAL FOR TRANSGENIC ALFALFA TO DIRECT RECOMBINANT PROTEINS INTO THE RHIZOSPHERE -
Gebeyaw, M.T., Denton, M.T., Samac, D.A., Vance, C.P. 2002. New uses for alfalfa: the potential for transgenic alfalfa to direct recombinant proteins into the rhizosphere. American Society of Plant Biologists Annual Meeting. Available: http://Z16.133.76.127/pb2002/public/P72/0642.html.
TRANSCRIPTOME ANALYSIS OF PATHOGENIC INTERACTIONS WITH MEDICAGO TRUNCATULA -
SAMAC, D.A., PENUELA, S., DANESH, D., YOUNG, N.D., VANDENBOSCH, K. TRANSCRIPTOME ANALYSIS OF PATHOGENIC INTERACTIONS WITH MEDICAGO TRUNCATULA. 38TH NORTH AMERICAN ALFALFA IMPROVEMENT CONFERENCE. 2002. P. 6.
PATHOSYSTEM DEVELOPMENT AND TRANSCRIPTOME ANALYSIS OF PATHOGEN INTERACTIONS WITH MEDICAGO TRUNCATULA -
SAMAC, D.A., PENUELA, S., DANESH, D., YOUNG, N.D., VANDENBOSCH, K. PATHOSYSTEM DEVELOPMENT AND TRANSCRIPTOME ANALYSIS OF PATHOGEN INTERACTIONS WITH MEDICAGO TRUNCATULA. NORTH AMERICAN ALFALFA IMPROVEMENT CONFERENCE. 2002. ABSTRACT. P. 48.
GENETIC MANIPULATION OF ALFALFA FOR ORGANIC ACID SYNTHESIS AND ALUMINUM TOLERANCE -
SAMAC, D.A., GEBEYAW, M.T., ALLAN, D.L., VANCE, C.P. GENETIC MANIPULATION OF ALFALFA FOR ORGANIC ACID SYNTHESIS AND ALUMINUM TOLERANCE. 38TH NORTH AMERICAN ALFALFA IMPROVEMENT CONFERENCE. 2002. ABSTRACT. P. 26.
MOLECULAR VARIABILITY AND PATHOGENESIS OF PHOMA MEDICAGINIS VAR. MEDICAGINIS ISOLATES FROM MINNESOTA -
Castell, C., Samac, D.A., Szabo, L. 2002. Molecular variability and pathogenesis of Phoma medicaginis var. medicaginis isolates from Minnesota. Phytopathology. 92:S12.
EVALUATION OF ANNUAL MEDIC GERMPLASM FOR UPPER MIDWEST AGROECOSYSTEMS -
DE HAAN, R.L., SHEAFFER, C.C., SAMAC, D.A., MOYNIHAN, J.M., BARNES, D.K. 2002. EVALUATION OF ANNUAL MEDIC GERMPLASM FOR UPPER MIDWEST AGROECOSYSTEMS. JOURNAL OF AGRONOMY AND CROP SCIENCE. 188:417-425.
FIRST INTERNATIONAL CONFERENCE ON LEGUME GENOMICS AND GENETICS: TRANSLATION TO CROP IMPROVEMENT -
MALATE PLAYS A CENTRAL ROLE IN PLANT NUTRITION -
Schulze, J., Tesfaye, M., Litjens, R.H.M.G., Bucciarelli, B., Trepp, G., Miller, S., Samac, D., Allan, D., Vance, C.P. 2002. Malate plays a central role in plant nutrition. Plant and Soil Journal. 247:133-139.
FUNCTIONAL GENOME ANALYSIS OF PATHOGEN INTERACTIONS OF MEDICAGO TRUNCATULA -
GENETIC MANIPULATION OF ALFALFA AND MEDICAGO TRUNCATULA FOR ORGANIC ACID SYNTHESIS AND METAL TOLERANCE -
PHOSPHORUS STRESS INDUCED PROTEOID ROOTS OF WHITE LUPIN: AN EST APPROACH TO FUNCTION AND DEVELOPMENT -
BIOLOGICAL CONTROL OF PHYTOPHTHORA ROOT ROTS ON ALFALFA AND SOYBEAN WITH STREPTOMYCES -
Xiao, K., Samac, D.A., Kinkel, L.L. 2002. Biological control of Phytophthora root rots on alfalfa and soybean with Streptomyces. Biological Control. 23:285-295.
PRODUCTION OF A BIODEGRADABLE PLASTIC POLYMER, POLY-B-HYDROXYBUTYRATE, IN TRANSGENIC ALFALFA -
Saruul, P., Srienc, F., Somers, D.A., Samac, D.A. 2002. Production of a biodegradable plastic polymer, poly-B-hydroxybutyrate, in transgenic alfalfa. Crop Science. 42:919-927.
OVEREXPRESSION OF MALATE DEHYDROGENEASE IN TRANSGENIC ALFALFA ENHANCES ORGANIC ACID SYNTHESIS AND CONFERS TOLERANCE TO ALUMINUM -
Tesfaye, M., Temple, S.J., Allan, D.L., Vance, C.P., Samac, D.A. 2001. Overexpression of malate dehydrogenease in transgenic alfalfa enhances organic acid synthesis and confers tolerance to aluminum. Plant Physiology. 127:1836-1844.
HOST RANGE OF CLAVIBACTER MICHIGANENSIS SUBSP. INSIDIOSUS -
SPATIAL PATTERNS OF ANTIBIOTIC INHIBITION AND RESISTANCE AMONG STREPTOMYCETES FROM PRAIRIE SOILS -
DAVELOS, A.L., KINKEL, L.L., SAMAC, D.A. SPATIAL PATTERNS OF ANTIBIOTIC INHIBITION AND RESISTANCE AMONG STREPTOMYCETES FROM PRAIRIE SOILS. AMERICAN PHYTOPATHOLOGY SOCIETY. 2001. V. 91. P. 521.
MOLECULAR VARIABILITY OF PHOMA MEDICAGINIS VAR. MEDICAGINIS -
CASTELL, C., SAMAC, D.A. MOLECULAR VARIABILITY OF PHOMA MEDICAGINIS VAR. MEDICAGINIS. PHYTOPATHOLOGY. 2001. V. 91. P. 513.
SPATIAL PATTERNS OF ANTIBIOTIC INHIBITION AND RESISTANCE AMONG STREPTOMYCETES FROM PRAIRIE SOILS -
GENETIC DIVERSITY OF STREPTOMYCETE POPULATIONS ASSOCIATED WITH TWO DIFFERENT PRAIRIE SOILS -
LEE, S.D., KINKEL, L.L., SAMAC, D.A. GENETIC DIVERSITY OF STREPTOMYCETE POPULATIONS ASSOCIATED WITH TWO DIFFERENT PRAIRIE SOILS. PHYTOPATHOLOGY. 2001. V. 91. P. 554.
FUNCTIONAL GENOMIC ANALYSIS OF SYMBIOTIC AND PATHOGENIC INTERACTIONS OF MEDICAGO TRUNCATULA -
IMPROVING ALFALFA FIBER DIGESTIBILITY -
JUNG, H.G., LINN, J.G., LAMB, J.F., SAMAC, D.A., SOMERS, D.A. IMPROVING ALFALFA FIBER DIGESTIBILITY. FOUR-STATE APPLIED NUTRITION AND MANAGEMENT CONFERENCE PROCEEDINGS. 2001. P. 127-137.
EST ANALYSIS FOR DISCOVERY OF MICROBE-INDUCED GENES IN ROOTS OF MEDICAGO TRUNCATULA -
EXPRESSION ANALYSIS OF MEDICAGO TRUNCATULA ESTS INVOLVED IN PLANT-MICROBE INTERACTIONS USING MACRO- AND MICROARRAYS -
IMPROVING ALFALFA FIBER DIGESTIBILITY -
JUNG, H.G., LINN, J.G., LAMB, J.F., SAMAC, D.A., SOMERS, D.A. IMPROVING ALFALFA FIBER DIGESTIBILITY. FOUR-STATE APPLIED NUTRITION AND MANAGEMENT CONFERENCE. 2001. CD-ROM. UNIVERSITY OF ILLINOIS.
DEVELOPMENT AND UTILIZATION OF TRANSFORMATION IN MEDICAGO SPECIES -
Samac, D.A., Temple, S.J. 2004. Development and utilization of transformation in Medicago species. In: Liang, G.H., Skinner, D.Z., editors. Genetically Modified Crops: Their Development, Uses, and Risks. New York, NY: Haworth Press. p. 165-202.
VIRTUAL AND ACTUAL GENE EXPRESSION ANALYSES OF MEDICAGO TRUNCATULA ROOTS CHALLENGED BY MICROBES -
THE PIVOTAL ROLE OF MALATE IN ROOT NODULE METABOLISM AND LEGUME GROWTH -
CONSTITUTIVE EXPRESSION OF A NODULE ENHANCED MALATE DEHYDROGENASE GENE IN ALFALFA PLANTS ALTERS ORGANIC ACID SYNTHESIS AND IMPROVES GROWTH IN ACID CULTURE -
SUPPRESSION OF THE ROOT-LESION NEMATODE (PRATYLENCHUS PENETRANS) IN ALFALFA(MEDICAGO SATIVA) BY STREPTOMYCES SPP. -
Samac, D.A., Kinkel, L.L. 2001. Suppression of the root-lesion nematode (Pratylenchus penetrans) in alfalfa (Medicago sativa) by Streptomyces spp. Plant and Soil. 235:35-44.
MOLECULAR CONTROL OF CARBON-NITROGEN INTERACTIONS IN SYMBIOTIC NITROGEN FIXATION -
ALUMINUM TOLERANCE IN MEDICAGO SATIVA AND MEDICAGO TRUNCATULA -
SYNTHESIS OF BIODEGRADABLE PLASTICS IN ALFALFA PLANTS -
MATURITY AND PLANT DENSITY EFFECTS ON LEAF AND STEM QUALITY IN ALFALFA -
METHOD VALIDATION BY RING TESTING TO ESTABLISH INTERNATIONAL STANDARDS FOR SEED TESTING; A CASE STUDY -
THE BIOLOGY AND POLITICS OF ALFALFA ELECTRICITY -
FUNCTIONAL ANALYSIS OF MEDICAGO TRUNCATULA EXPRESSED SEQUENCE TAGS ASSOCIATED WITH PLANT-MICROBE INTERACTIONS -
ALUMINUM TOLERANCE IN TRANSGENIC ALFALFA (MEDICAGO SATIVA L.) -
THE BIOLOGY AND POLITICS OF ALFALFA ELECTRICITY -
SYNTHESIS OF BIODEGRADABLE PLASTICS IN ALFALFA PLANTS -
FUNCTIONAL GENOMICS OF THE MODEL LEGUME MEDICAGO TRUNCATULA: ANALYSIS OF ESTS ASSOCIATED WITH PLANT-MICROBE INTERACTION -
ALFALFA BIOMASS PRODUCTION: PLANT DENSITY AND MATURITY EFFECTS ON YIELD AND QUALITY -
INCREASED HERBAGE YIELD IN ALFALFA ASSOCIATED WITH SELECTION FOR FIBROUS AND LATERAL ROOTS -
Lamb, J.F., Samac, D.A., Barnes, D.K., Henjum, K.I. 2000. Increased herbage yield in alfalfa associated with selection for fibrous and lateral roots. Crop Science. 40:693-699.
REGISTRATION OF A REGENERATING INEFFECTIVELY NODULATED ALFALFA GERMPLASM - UMN 3176 -
A PCR ASSAY FOR IDENTIFICATION OF CLAVIBACTER MICHIGANENSIS SUBSP. INSIDIOSUS -
PCR ASSAY FOR IDENTIFICATION OF CLAVIBACTER MICHIGANENSIS SUBSP. INSIDIOSUS -
USE OF CULTURE PLATING, POLYMERASE CHAIN REACTION, AND NEAR INFRARED SPECTROSCOPY TO SCREEN ALFALFA POPULATIONS FOR THE PRESENCE OF VASCULAR WILT PATHOGENS -
PROMOTERS FOR CONSTITUTIVE AND TISSUE-SPECIFIC EXPRESSION OF TRANSGENES IN ALFALFA -
AGE-DEPENDENT AND PATHOGEN-INDUCED EXPRESSION OF AN ALFALFA CLASS 1 CHITINASE GENE -
GENETIC TRANSFORMATION OF ALFALFA (MEDICAGO SATIVA L.) FOR INCREASED TOLERANCE TO ACID SOILS -
SUPPRESSION OF ROOT-LESION NEMATODES BY EXPRESSION OF RICE PROTEASE INHIBITOR GENES IN ALFALFA -
THE ALFALFA (MEDICAGO SATIVA) TDY1 GENE ENCODES A MITOGEN-ACTIVATED PROTEIN KINASE HOMOLOG -
Schoenbeck, M.A., Samac, D.A., Fedorova, M., Gregerson, R.G., Gantt, J.S., Vance, C.P. 1999. The alfalfa (Medicago sativa) TDY1 gene encodes a mitogen-activated protein kinase homolog. Molecular Plant Microbe Interactions. 12(10):882-893.
DECREASED NADH GLUTAMATE SYNTHASE ACTIVITY IN NODULES AND FLOWERS OF ALFALFA (MEDICAGO SATIVA L.) TRANSFORMED WITH AN ANTISENSE GLUTAMATE SYNTHASE TRANSGENE -
NADH-GLUTAMATE SYNTHASE (GOGAT) IN ALFALFA ROOT NODULES: GENETIC REGULATION AND CELLULAR EXPRESSION -
ASPARTATE AMINOTRANSFERASE IN ALFALFA NODULES: LOCALIZATION OF MRNA DURINGEFFECTIVE AND INEFFECTIVE NODULE DEVELOPMENT AND PROMOTER ANALYSIS -
TRANSMISSION FREQUENCY OF CLAVIBACTER MICHIGANENSIS SUBSP. INSIDIOSUS TO ALFALFA SEED AND IDENTIFICATION OF THE BACTERIUM BY PCR -
MATURITY AND PLANT DENSITY EFFECTS ON STEM AND LEAF TRAITS FOR ALFALFA BIOMASS PRODUCTION -
IDENTIFICATION AND UTILIZATION OF PLANT PROTEIN INHIBITORS FOR INSECT CONTROL IN ALFALFA -
INCREASED ALUMINUM TOLERANCE IN TRANSGENIC PLANTS BY ALTERED EXPRESSION OF MALATE DEHYDROGENASE -
ALFALFA (MEDICAGO SATIVA L.) RESISTANCE TO THE ROOT-LESION NEMATODE, PRATYLENCHUS PENETRANS: DEFENSE-RESPONSE GENE MRNA AND ISOFLAVONOID PHYTOALEXIN LEVELS IN ROOTS -
INHIBITION OF ALFALFA ROOT NODULE PHOSPHOENOLPYRUVATE CARBOXYLASE THROUGH AN ANTISENSE STRATEGY IMPACTS NITROGEN FIXATION AND PLANT GROWTH -
IMPROVING STRESS TOLERANCE IN ALFALFA BY GENE TRANSFER -
NITROGEN ASSIMILATION IN ALFALFA: ISOLATION AND CHARACTERIZATION OF AN ASPARAGINE SYNTHETASE GENE SHOWING ENHANCED EXPRESSION IN ROOT NODULES AND DARK-ADAPTED LEAVES -
NODULE CARBON METABOLISM: ORGANIC ACIDS FOR N2 FIXATION -
PROMOTER ANALYSIS OF AN ASPARAGINE SYNTHETASE GENE SHOWING ENHANCED EXPRESSION IN ALFALFA ROOT NODULES AND DARK ADAPTED LEAVES -
THE ALFALFA TDY1 GENE ENCODES A MAP KINASE HOMOLOGUE -
MODULATION OF NITROGEN METABOLISM IN TRANSGENIC ALFALFA -
RESISTANCE MECHANISM OF ALFALFA TO THE ROOT-LESION NEMATODE -
DELAY OF LEAF SENESCENCE IN TRANSGENIC ALFALFA PLANTS -
ALFALFA BIOMASS: SELECTION AND BREEDING -
EVIDENCE FROM ANTISENSE AND INHIBITOR STUDIES SUGGESTS A ROLE FOR PEPC IN N2 FIXATION? -
BIOLOGICAL CONTROL OF ROOT-LESION NEMATODES IN ALFALFA BY STREPTOMYCES -
MODULATION OF NITROGEN ASSIMILATION IN TRANSGENIC ALFALFA -
DELAY OF LEAF SENESCENCE IN TRANSGENIC ALFALFA PLANTS EXPRESSING A GENE FOR CYTOKININ BIOSYNTHESIS -
ALFALFA NADH-DEPENDENT GLUTAMATE SYNTHASE: STRUCTURE OF THE GENE AND IMPORTANCE IN SYMBIOTIC N2 FIXATION -
MECHANISM OF BIOLOGICAL CONTROL OF A DISEASE SUPPRESSIVE STREPTOMYCES ISOLATE -
EFFECT OF ROOT-LESION NEMATODES ON MRNA LEVELS OF DEFENSE-RESPONSE GENES IN ALFALFA ROOTS -
ALFALFA ASPARTATE AMINOTRANSFERASE-2: IN SITU EXPRESSION OF MRNA IN ROOT NODULES AND ANALYSIS OF THE PUTATIVE PROMOTER REGION OF THE GENE -
FORAGE YIELD, DORMANCY, AND DISEASE RESISTANCE RESPONSE TO TWO CYCLES OF DIVERGENT SELECTION FOR ROOT ARCHITECTURE IN ALFALFA -
DEVELOPMENT AND UTILIZATION OF AN AGROBACTERIUM-MEDIATED TRANSFORMATION SYSTEM FOR ALFALFA -
BIOLOGICAL CONTROL OF FUNGI CAUSING ALFALFA SEEDLING DAMPING-OFF WITH A PATHOGEN-SUPPRESSIVE STRAIN OF STREPTOMYCES -
LOCALIZATION AND REGULATION OF THE NADH-DEPENDENT GLUTAMATE SYNTHASE IN ALFALFA ROOT NODULES -
CHARACTERIZATION OF A NODULE ENHANCED ASPARAGINE SYNTHETASE GENE FROM ALFALFA -
REDUCTION OF NODULE-ENHANCED NADH-GLUTAMATE SYNTHASE ACTIVITY IN TRANSGENIC ALFALFA -
FIRST REPORT OF PHYTOPHTHORA MEGASPERMA F. SP. MEDICAGINIS CAUSING PHYTOPHTHORA ROOT ROT ON ANNUAL MEDICAGO SPP. -
ALFALFA ROOT NODULE PHOSPHOENOLPYRUVATE CARBOXYLASE AND NADH-GLUTAMATE SYNTHASE: CRITICAL EFFECTORS OF NITROGEN METABOLISM -
ALFALFA ROOT NODULE PHOSPHOENOLPYRUVATE CARBOXYLASE AND NADH-GLUTAMATE SYNTHASE: CRITICAL AFFECTORS OF NITROGEN METABOLISM -
BIOCHEMICAL AND MOLECULAR DISSECTION OF NITROGEN ASSIMILATION IN ALFALFA ROOT NODULES -
FREQUENCY OF SEED TRANSMISSION OF ALFALFA BACTERIAL WILT AND DETECTION BY APCR ASSAY -
PYTHIUM SEED ROT AND DAMPING-OFF RESISTANCE -
A MAP KINASE HOMOLOGUE FROM ALFALFA ROOT NODULE LIBRARY -
CHARACTERIZATION OF A NODULE ENHANCED ASPARAGINE SYNTHETASE GENE FROM ALFALFA -
ANALYSES OF PHOSPHOENOLPYRUVATE CARBOXYLASE GENE STRUCTURE AND EXPRESSION IN ALFALFA NODULES -
Last Modified: 8/26/2016
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