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Eric T Johnson
Research Molecular Biologist
Research Molecular Biologist
CONTACT
Phone: (309) 681-6177
Fax: 309-681-6693
Room: 3109B/3108
USDA ARS NCAUR
1815 N University
Peoria, IL 61604
EDUCATION
PhD, Horticulture, Washington State University, 1997
MS, Botany, Washington State University, 1990
BA, Genetics, UC Berkeley, 1988
AREA OF EXPERTISE
My laboratory works on identifying biological control strategies for mildew and fungal pathogens of US crops.
RESEARCH INTERESTS
Our primarily project focuses on artificially culturing downy mildew pathogens of maize, turfgrass and basil that can only grow on their respective plant hosts. Our knowledge of and control strategies for downy mildew disease on these plant hosts could be significantly advanced with pure cultures.
Our secondary project involves the identification of control strategies of a fungus that infects onions. We have identified some bacteria that produce compounds that inhibit the growth of this fungus. RNA interference control strategies are also being explored.
PROFESSIONAL APPOINTMENTS
Research Molecular Biologist, Crop Bioprotection Research, USDA-ARS, Peoria, Illinois, 2004 to present.
Research Associate in Plant Molecular Biology, Crop Bioprotection Research, USDA-ARS, Peoria, Illinois, 2002-2003.
Research Associate in Immunology, School of Molecular Biosciences, Washington State University, 2000-2002.
Research Associate in Plant Molecular Biology, Kumho Life and Environmental Science Laboratory, Kwangju, South Korea, 1997-1999
LAB MEMBERS / SUPPORT STAFF / VISITING SCIENTISTS
Current:
Mark Doehring, MS (Biological Science Laboratory Technician)
Alumni:
Kay Shopinski,Technician 2004-2008 (Currently at Monsanto, St. Louis)
COLLABORATION / COOPERATION:
National:
Richard Michelmore, UC Davis
Foreign:
Ashwini P. Benke, ICAR Directorate of Onion and Garlic Research, India.
Publications Indexed by Google Scholar
Click here to view Google Scholar entries for Eric Johnson
(The Google Scholar results may not reflect a complete or accurate listing for this scientist).
Develop an Improved Understanding of Microbe-pathogen Interactions for Biological Control In-House Appropriated (D) Accession Number:441614 
- (Clicking on the reprint icon
will take you to the publication reprint.)
- Potential role of a maize metallothionein gene in pest resistance -(Peer Reviewed Journal)
Dowd, P.F., Naumann, T.A., Johnson, E.T. 2023. Potential role of a maize metallothionein gene in pest resistance. Plant Gene. 34 (2023) 100409. https://doi.org/10.1016/j.plgene.2023.100409. - Discovery of a secreted Verticillium dahliae protease that cleaves cotton CRR1 and induces plant cell death -(Peer Reviewed Journal)
Naumann, T.A., Hao, G., Dowd, P.F., Johnson, E.T., Naldrett, M.J., Price, N.P.J. 2022. Discovery of a secreted Verticillium dahliae protease that cleaves cotton CRR1 and induces plant cell death. Physiological and Molecular Plant Pathology. 123. Article 101941. https://doi.org/10.1016/j.pmpp.2022.101941. - What needs fixing: Identifying new pest resistance genes in maize and determining functionality of coded proteins-(Abstract Only)
- A maize lectin can function as a defensive protein against insect and fungal pests-(Abstract Only)
Dowd, P.F., Naumann, T.A., Johnson, E.T. 2022. A maize lectin can function as a defensive protein against insect and fungal pests [abstract]. American Chemical Society. Paper No. 3737991. - Sweet corn variety can influence the efficacy of Beauveria bassiana on European corn borers and fall armyworms-(Abstract Only)
Dowd, P.F., Johnson, E.T. 2022. Sweet corn variety can influence the efficacy of Beauveria bassiana on European corn borers and fall armyworms [abstract]. Entomological Society of America Annual Meeting. - A maize gene coding for a chimeric superlectin reduces growth of maize fungal pathogens and insect pests when expressed transgenically in maize callus -(Peer Reviewed Journal)
Dowd, P.F., Naumann, T.A., Johnson, E.T. 2022. A maize gene coding for a chimeric superlectin reduces growth of maize fungal pathogens and insect pests when expressed transgenically in maize callus. Plant Gene. 30. Article 100359. https://doi.org/10.1016/j.plgene.2022.100359. - Different maize (Zea mays L.) inbreds influence the efficacy of Beaveria bassiana against major maize caterpillar pests, which is potentially affected by maize pathogen resistance -(Peer Reviewed Journal)
Dowd, P.F., Johnson, E.T. 2022. Different maize (Zea mays L.) inbreds influence the efficacy of Beaveria bassiana against major maize caterpillar pests, which is potentially affected by maize pathogen resistance. Biocontrol Science and Technology. 32(7):847-862. https://doi.org/10.1080/09583157.2022.2055745. - Natural food flavour (E)-2-hexenal, a potential antifungal agent, induces mitochondria-mediated apoptosis in Aspergillus flavus conidia via a ROS-dependent pathway -(Peer Reviewed Journal)
Ma, W., Zhao, L., Johnson, E.T., Xie, Y., Zhang, M. 2022. Natural food flavour (E)-2-hexenal, a potential antifungal agent, induces mitochondria-mediated apoptosis in Aspergillus flavus conidia via a ROS-dependent pathway. International Journal of Food Microbiology. 370. Article 109633. https://doi.org/10.1016/j.ijfoodmicro.2022.109633. - Dual transcriptional analysis of Ocimum basilicum and Peronospora belbahrii in susceptible interactions -(Peer Reviewed Journal)
Johnson, E.T., Kim, H., Tian, M., Dudai, N., Tal, O., Gonda, I. 2021. Dual transcriptional analysis of Ocimum basilicum and Peronospora belbahrii in susceptible interactions. Plant Gene. 29. Article 100350. https://doi.org/10.1016/j.plgene.2021.100350. - Dual transcriptional analysis of Peronospora belbahrii and Ocimum basilicum in susceptible interactions -(Pre-print Publication)
Johnson, E.T., Kim, H., Tian, M., Dudai, N., Tal, O., Gonda, I. 2021. Dual transcriptional analysis of Peronospora belbahrii and Ocimum basilicum in susceptible interactions. bioRxiv. 2021. Article 457810. https://doi.org/10.1101/2021.09.07.457810. - Differential impact of maize inbred feeding on efficacy of Beauveria bassiana against European corn borers (Ostrinia nubilalis) and fall armyworms (Spodoptera frugiperda)-(Abstract Only)
Dowd, P.F., Johnson, E.T. 2021. Differential impact of maize inbred feeding on efficacy of Beauveria bassiana against European corn borers (Ostrinia nubilalis) and fall armyworms (Spodoptera frugiperda) [abstract]. Entomological Society of America. - Dual transcriptome analysis of the susceptible interaction between basil and Peronospora belbahrii-(Abstract Only)
Johnson, E.T., Kim, H., Doehring, M.E., Tian, M., Gonda, I., Tal, O., Dudai, N. 2021. Dual transcriptome analysis of the susceptible interaction between basil and Peronospora belbahrii. Meeting Abstract. [abstract]. - Enzymatic and antipest activity of maizewin, a defensive protein from maize-(Abstract Only)
Dowd, P.F., Naumann, T.A., Price, N.P., Johnson, E.T. 2021. Enzymatic and antipest activity of maizewin, a defensive protein from maize [abstract]. American Chemical Society. - Natural flavour (E,E)-2,4-heptadienal as a potential fumigant for control of Aspergillus flavus in stored peanut seeds: finding new antifungal agents based on preservative sorbic acid -(Peer Reviewed Journal)
Ma, W., Johnson, E.T. 2021. Natural flavour (E,E)-2,4-heptadienal as a potential fumigant for control of Aspergillus flavus in stored peanut seeds: finding new antifungal agents based on preservative sorbic acid. Food Control. 124. Article 107938. https://doi.org/10.1016/j.foodcont.2021.107938. - Description of Cohnella zeiphila sp. nov., a bacterium isolated from maize callus cultures -(Peer Reviewed Journal)
Johnson, E.T., Dowd, P.F., Skory, C.D., Dunlap, C.A. 2021. Description of Cohnella zeiphila sp. nov., a bacterium isolated from maize callus cultures. Antonie Van Leeuwenhoek. 114:37-44. https://doi.org/10.1007/s10482-020-01495-2. - A maizewin protein confers enhanced antiinsect and antifungal resistance when the gene is transgenically expressed in maize callus -(Peer Reviewed Journal)
Dowd, P.F., Naumann, T.A., Johnson, E.T., Price, N.P. 2020. A maizewin protein confers enhanced antiinsect and antifungal resistance when the gene is transgenically expressed in maize callus. Plant Gene. 24. Article 100259. https://doi.org/10.1016/j.plgene.2020.100259. - Maize inbred type can influence the efficacy of Beauveria bassiana on corn earworms and fall armyworms-(Abstract Only)
Dowd, P.F., Johnson, E.T. 2020. Maize inbred type can influence the efficacy of Beauveria bassiana on corn earworms and fall armyworms. Meeting Abstract. [abstract]. - Differential expression of genes encoding sugar transporters in the basil pathogen Peronospora belbahrii-(Abstract Only)
Johnson, E.T., Quesada-Ocampo, L., Tian, M. 2020. Differential expression of genes encoding sugar transporters in the basil pathogen Peronospora belbahrii. Meeting Abstract. [abstract]. - Determination of ferulated sugars with activity against insect and fungal pests of maize-(Abstract Only)
Dowd, P.F., Berhow, M.A., Vermillion, K., Johnson, E.T. 2020. Determination of ferulated sugars with activity against insect and fungal pests of maize. Meeting Abstract. [abstract]. - Transgenic expression of a previously uncharacterized maize AIL1 gene in maize callus increases resistance to multiple maize fungal and insect pests -(Peer Reviewed Journal)
Dowd, P.F., Johnson, E.T. 2020. Transgenic expression of a previously uncharacterized maize AIL1 gene in maize callus increases resistance to multiple maize fungal and insect pests. Plant Gene. 23:100235. https://doi.org/10.1016/j.plgene.2020.100235. - Brevibacillus fortis NRS-1210 produces edeines that inhibit the in vitro growth of conidia and chlamydospores of the onion pathogen Fusarium oxysporum f. sp. cepae -(Peer Reviewed Journal)
Johnson, E.T., Bowman, M.J., Dunlap, C.A. 2020. Brevibacillus fortis NRS-1210 produces edeines that inhibit the in vitro growth of conidia and chlamydospores of the onion pathogen Fusarium oxysporum f. sp. cepae. Antonie van Leeuwenhoek. 113:973-987. https://doi.org/10.1007/s10482-020-01404-7. - Soil treatment of Metarhizium brunneum F52 granule containing microsclerotia: Effective in reducing egg hatch of Aedes aegypti-(Abstract Only)
Weiler, L., Behle, R.W., Johnson, E.T., Rooney, A.P., Strickman, D.A. 2019. Soil treatment of Metarhizium brunneum F52 granule containing microsclerotia: Effective in reducing egg hatch of Aedes aegypti. Meeting Abstract. [abstract]. - A maize hydrolase with activity against maize insect and fungal pests -(Peer Reviewed Journal)
Dowd, P.F., Naumann, T.A., Johnson, E.T., Price, N.P.J. 2020. A maize hydrolase with activity against maize insect and fungal pests. Plant Gene. 21:100214. https://doi.org/10.1016/j.plgene.2019.100214. - Efficacy of fungicides and biotic agents for the control of basil downy mildew in Illinois-(Abstract Only)
Zhang, G., Babadoost, M., De Young, A., Johnson, E.T., Schisler, D.A. 2019. Efficacy of fungicides and biotic agents for the control of basil downy mildew in Illinois. Meeting Abstract. [abstract]. - Interactions between antifungal plant pathogen resistance mechanisms and Beauveria bassiana in maize-(Abstract Only)
- A Brevibacillus fortis isolate produces extracellular antibiotics that inhibit the growth of the onion pathogen Fusarium oxysporum f. sp. cepae and other Fusarium species-(Abstract Only)
Johnson, E.T., Bowman, M.J., Dunlap, C.A. 2019. A Brevibacillus fortis isolate produces extracellular antibiotics that inhibit the growth of the onion pathogen Fusarium oxysporum f. sp. cepae and other Fusarium species. Meeting Abstract. [abstract]. - Enhanced insect and fungal resistance of maize callus transgenically expressing a maize E2F regulatory gene -(Peer Reviewed Journal)
Dowd, P.F., Johnson, E.T. 2019. Enhanced insect and fungal resistance of maize callus transgenically expressing a maize E2F regulatory gene. AGRI GENE. 12:100086. https://doi.org/10.1016/j.aggene.2019.100086. - Insect damage influences expression of heat and drought stress resistance genes in maize-(Abstract Only)
Dowd, P.F., Johnson, E.T. 2019. Insect damage influences expression of heat and drought stress resistance genes in maize. Meeting Abstract. - Validation of candidate maize insect and fungal resistance genes through functional analysis-(Abstract Only)
Dowd, P.F., Naumann, T.A., Johnson, E.T., Berhow, M.A., Zilkowski, B.W., Muturi, E.J. 2019. Validation of candidate maize insect and fungal resistance genes through functional analysis. Meeting Abstract. - Phylogenomic analysis of the Brevibacillus brevis clade: a proposal for three new Brevibacillus species, Brevibacillus fortis sp. nov., Brevibacillus porteri sp. nov. and Brevibacillus schisleri sp. nov. -(Peer Reviewed Journal)
Johnson, E.T., Dunlap, C.A. 2019. Phylogenomic analysis of the Brevibacillus brevis clade: a proposal for three new Brevibacillus species, Brevibacillus fortis sp. nov., Brevibacillus porteri sp. nov. and Brevibacillus schisleri sp. nov. Antonie Van Leeuwenhoek. https://doi.org/10.1007/s10482-019-01232-4. - Characterization of the infection process by Peronospora belbahrii on basil by scanning electron microscopy -(Peer Reviewed Journal)
Zhang, G., Thompson, A.R., Schisler, D.A., Johnson, E.T. 2019. Characterization of infection through sporulation by Peronospora belbahrii on basil using light and scanning electron microscopy. Plant Pathology. 5:e01117. https://doi.org/10.1016/j.heliyon.2019.e01117. - Evaluation of a granular formulation containing Metarhizium brunneum F52 (Hypocreales: Clavicipitaceae) microsclerotia in controlling eggs of Aedes aegypti (Diptera: Culicidae)
-(Peer Reviewed Journal)
Weiler, L., Behle, R.W., Johnson, E.T., Strickman, D.A., Rooney, A.P. 2018. Evaluation of a granular formulation containing Metarhizium brunneum F52 (Hypocreales: Clavicipitaceae) microsclerotia in controlling eggs of Aedes aegypti (Diptera: Culicidae). Biocontrol Science and Technology. 29:68-82. https://doi.org/10.1080/09583157.2018.1530342. - Evaluation of selected fungicide application regimes and biotic agents for the management of basil downy mildew-(Peer Reviewed Journal)
Zhang, G., Babadoost, M., De Young, A., Johnson, E.T., Schisler, D.A. 2018. Evaluation of selected fungicide application regimes and biotic agents for management of basil downy mildew. HortTechnology. 28:822-829. - Activity of a maize chitinase-like protein against maize insect pests-(Abstract Only)
Dowd, P.F., Naumann, T.A., Johnson, E.T., Price, N.P. 2018. Activity of a maize chitinase-like protein against maize insect pests. Meeting Abstract. - Overexpression of a maize (Zea mays) defensin-like gene in maize callus enhances resistance to both insects and fungi -(Peer Reviewed Journal)
Dowd, P.F., Johnson, E.T. 2018. Overexpression of a maize (Zea mays) defensin-like gene in maize callus enhances resistance to both insects and fungi. AGRI GENE. 9:16/23. https://doi.org/10.1016/j.aggene.2018.07.003. - RNA interference in a maize pathogen reduces toxin production-(Abstract Only)
Johnson, E.T., Dunlap, C.A., Proctor, R., Busman, M. 2018. RNA interference in a maize pathogen reduces toxin production. Meeting Abstract. - A quantitative PCR method for determining relative infection rates of maize callus by Fusarium graminearum in screening for fungal resistance genes-(Abstract Only)
Johnson, E.T., Dowd, P.F. 2018. A quantitative PCR method for determining relative infection rates of maize callus by Fusarium graminearum in screening for fungal resistance genes. Meeting Abstract. - Enhanced pest resistance and increased phenolic production in maize callus transgenically expressing a maize chalcone isomerase -3 like gene-(Peer Reviewed Journal)
Dowd, P.F., Berhow, M.A., Johnson, E.T. 2018. Enhanced pest resistance and increased phenolic production in maize callus transgenically expressing a maize chalcone isomerase -3 like gene. Plant Gene. 13:50-55. https://doi.org/10.1016/j.plgene.2018.01.002. - Transgenic expression of a maize geranyl geranyl transferase gene sequence in maize callus increases resistance to ear rot pathogens -(Peer Reviewed Journal)
Dowd, P.F., Zilkowski, B.W., Johnson, E.T., Berhow, M.A., Muturi, E.J. 2018. Transgenic expression of a maize geranyl geranyl transferase gene sequence in maize callus increases resistance to ear rot pathogens. AGRI GENE. 7:52-58. https://doi.org/10.1016/j.aggene.2018.01.001. - Insect damage influences heat and water stress resistance gene expression in field grown popcorn: Implications in developing crop varieties adapted to climate change -(Peer Reviewed Journal)
Dowd, P.F., Johnson, E.T. 2017. Insect damage influences heat and water stress resistance gene expression in field grown popcorn: Implications in developing crop varieties adapted to climate change. Mitigation and Adaptation Strategies for Global Change. 23(7):1063-1081. http://link.springer.com/article/10.1007/s11027-017-9772-x. - Reducing production of fumonisin mycotoxins in Fusarium verticillioides by RNA interference-(Peer Reviewed Journal)
Johnson, E.T., Proctor, R., Dunlap, C.A., Busman, M. 2017. Reducing production of fumonisin mycotoxins in Fusarium verticillioides by RNA interference. Mycotoxin Research. 34:29-37. https://doi.org/10.1007/s12550-017-0296-8. - Identification of a maize (Zea mays) chitinase allele sequence suitable for a role in ear rot fungal resistance -(Peer Reviewed Journal)
Dowd, P.F., Naumann, T.A., Price, N.P., Johnson, E.T. 2017. Identification of a maize (Zea mays) chitinase allele sequence suitable for a role in ear rot fungal resistance. AGRI GENE. 7:15-22. http://dx.doi.org/10.1016/j.aggene.2017.10.001. - Molecules that inhibit growth of Fusarium graminearum, a pathogen causing disease in wheat and corn-(Abstract Only)
Johnson, E.T., Evans, K.O., Dowd, P.F. 2017. Molecules that inhibit growth of Fusarium graminearum, a pathogen causing disease in wheat and corn. Meeting Abstract. - Soil application of formulated Metarhizium brunneum F52 (Hypocreales: Clavicipitaceae) containing microsclerotia controls eggs of Aedes aegypti (Diptera: Culicidae)-(Abstract Only)
Weiler, L., Behle, R.W., Johnson, E.T., Strickman, D.A., Rooney, A.P. 2017. Soil application of formulated Metarhizium brunneum F52 (Hypocreales: Clavicipitaceae) containing microsclerotia controls eggs of Aedes aegypti (Diptera: Culicidae). Meeting Abstract. - A maize defensin active against maize ear insect and fungal pests-(Abstract Only)
Dowd, P.F., Johnson, E.T. 2017. A maize defensin active against maize ear insect and fungal pests. Meeting Abstract. - Functionality of a maize chitinase potentially involved in ear rot pathogen resistance-(Abstract Only)
Dowd, P.F., Naumann, T.A., Price, N.P., Johnson, E.T. 2017. Functionality of a maize chitinase potentially involved in ear rot pathogen resistance. Meeting Abstract. AGRO 0315. - Three sorghum serpin recombinant proteins inhibit midgut trypsin activity and growth of corn earworm-(Peer Reviewed Journal)
Johnson, E.T., Skory, C.D., Naumann, T.A., Jairajpuri, M.A., Dowd, P.F. 2016. Three sorghum serpin recombinant proteins inhibit midgut trypsin activity and growth of corn earworm. Agri Gene. 2(2016):11-16. doi:10.1016/j.aggene.2016.09.005. - A quantitative method for determining relative colonization rates of maize callus by Fusarium graminearum for resistance gene evaluations-(Peer Reviewed Journal)
Johnson, E.T., Dowd, P.F. 2016. A quantitative method for determining relative colonization rates of maize callus by Fusarium graminearum for resistance gene evaluations. Journal of Microbiological Methods. 130(2016):73-75. - Vast potential for using the piggyBac transposon to engineer transgenic plants-(Other)
Johnson, E.T., Owens, J.B., Moisyadi, S. 2016. Vast potential for using the piggyBac transposon to engineer transgenic plants. Bioengineered Bugs. 7:3-6. - Maize peroxidase Px5 has a highly conserved sequence in inbreds resistant to mycotoxin producing fungi which enhances fungal and insect resistance -(Peer Reviewed Journal)
Dowd, P.F., Johnson, E.T. 2015. Maize peroxidase Px5 has a highly conserved sequence in inbreds resistant to mycotoxin producing fungi which enhances fungal and insect resistance. Journal of Plant Research. 129(1):13-20. doi: 10.1007/s10265-015-0770-3. - Transgenic tobacco expressing a modified spider peptide inhibits the growth of plant pathogens and insect larvae-(Abstract Only)
Johnson, E.T., Dowd, P.F., Hughes, S.R. 2015. Transgenic tobacco expressing a modified spider peptide inhibits the growth of plant pathogens and insect larvae. Meeting Abstract. p. 29. - Antifungal activity of a synthetic cationic peptide against the plant pathogens Colletotrichum graminicola and three Fusarium species-(Peer Reviewed Journal)
Johnson, E.T., Evans, K.O., Dowd, P.F. 2015. Antifungal activity of a synthetic cationic peptide against the plant pathogens Colletotrichum graminicola and three Fusarium species. Plant Pathology Journal. 31(3):316-321. - Effects of phenylalanine ammonia lyase (PAL) knockdown on cell wall composition, biomass digestibility, and biotic and abiotic stress responses in Brachypodium-(Peer Reviewed Journal)
Cass, C.L., Peraldi, A., Dowd, P.F., Mottiar, Y., Santoro, N., Karlen, S.D., Bukhman, Y.V., Thrower, N., Bruno, L.C., Moskvin, O.V., Johnson, E.T., Willhoit, M.E., Ralph, J., Mansfield, S.D., Nicholson, P., Sedbrook, J.C., Foster, C.E., Phutane, M. 2015. Effects of phenylalanine ammonia lyase (PAL) knockdown on cell wall composition, biomass digestibility, and biotic and abiotic stress responses in Brachypodium. Journal of Experimental Botany. DOI: 10.1093/jxb/erv269. - Environmental effects on resistance gene expression in milk stage popcorn kernels and associations with mycotoxin production -(Peer Reviewed Journal)
Dowd, P.F., Johnson, E.T. 2014. Environmental effects on resistance gene expression in milk stage popcorn kernels and associations with mycotoxin production. Mycotoxin Research. 31(2):63-82. DOI: 10.1007/S12550-014-0215-1. - Identification of a bioactive Bowman-Birk inhibitor from an insect-resistant early maize inbred-(Peer Reviewed Journal)
Johnson, E.T., Dowd, P.F., Skory, C.D. 2014. Identification of a bioactive Bowman-Birk inhibitor from an insect-resistant early maize inbred. Journal of Agricultural and Food Chemistry. 62(24):5458-5465. - A non-autonomous insect piggyBac trasposable element is mobile in tobacco -(Peer Reviewed Journal)
Johnson, E.T., Dowd, P.F. 2014. A non-autonomous insect piggyBac transposable element is mobile in tobacco. Molecular Genetics and Genomics. 289(5):895-902. - Expression of a wolf spider toxin in tobacco inhibits the growth of microbes and insects -(Peer Reviewed Journal)
Johnson, E.T., Dowd, P.F., Hughes, S.R. 2014. Expression of a wolf spider toxin in tobacco inhibits the growth of microbes and insects. Biotechnology Letters. 36(8):1735-1742. - Popcorn and sorghum studies by the USDA "Ag Lab" in 2013-(Abstract Only)
Dowd, P.F., Johnson, E.T., Sattler, S.E. 2014. Popcorn and sorghum studies by the USDA "Ag Lab" in 2013 [abstract]. Central Illinois Irrigated Growers Association. - Enhanced pest resistance of maize leaves expressing monocot crop plant derived ribosome inactivating protein and agglutinin-(Peer Reviewed Journal)
Dowd, P.F., Johnson, E.T., Price, N.P. 2012. Enhanced pest resistance of maize leaves expressing monocot crop plant derived ribosome inactivating protein and agglutinin. Journal of Agricultural and Food Chemistry. 60(1):10768-10775. - Cell-penetrating recombinant peptides for potential use in agricultural pest control applications-(Other)
Hughes, S.R., Dowd, P.F., Johnson, E.T. 2012. Cell-penetrating recombinant peptides for potential use in agricultural pest control applications. Journal of Pharmaceutical Sciences. 5:1054-1063. - Effects of elevated peroxidase levels and corn earworm feeding on gene expression in tomato-(Peer Reviewed Journal)
Suzuki, H., Dowd, P.F., Johnson, E.T., Hum-Musser, S.M., Musser, R.O. 2012. Effects of elevated peroxidase levels and corn earworm feeding on gene expression in tomato. Journal of Chemical Ecology. 38(1):1247-1263. - Coconut leaf bioactivity toward generalist maize insect pests-(Peer Reviewed Journal)
Dowd, P.F., Johnson, E.T., Vermillion, K., Berhow, M.A. 2011. Coconut leaf bioactivity toward generalist maize insect pests. Entomologia Experimentalis et Applicata. 141:208-215. - Maize utilizes multiple resistance genes to defend itself during germination-(Abstract Only)
Johnson, E.T., Dowd, P.F., Liu, Z., Richard, M.O. 2011. Maize utilizes multiple resistance genes to defend itself during germination [abstract]. American Society of Plant Biologists. p. 84. - Comparative transcription profiling analyses of maize reveals candidate defensive genes for seedling resistance against corn earworm-(Peer Reviewed Journal)
Johnson, E.T., Dowd, P.F., Liu, Z., Musser, R.O. 2011. Comparative transcription profiling analyses of maize reveals candidate defensive genes for seedling resistance against corn earworm. Molecular Genetics and Genomics. 285(6):517-525. - Differential activity of multiple saponins against omnivorous insects with varying feeding preferences-(Peer Reviewed Journal)
Dowd, P.F., Berhow, M.A., Johnson, E.T. 2011. Differential activity of multiple saponins against omnivorous insects with varying feeding preferences. Journal of Chemical Ecology. 37(5):443-449. - Identification and Properties of Insect Resistance-Associated Maize Anionic Peroxidases-(Peer Reviewed Journal)
Dowd, P.F., Johnson, E.T., Pinkerton, T.S. 2010. Identification and properties of insect resistance-associated maize anionic peroxidases. Phytochemistry. 71(11-12):1289-1297. DOI: 10.1016/j.phytochem.2010.05.001 - Can Maize Anthocyanins Function as Resistance Molecules to Corn Earworm?-(Abstract Only)
Johnson, E.T., Berhow, M.A., Dowd, P.F. 2010. Can maize anthocyanins function as resistance molecules to corn earworm? [abstract]. International Plant Resistance to Insects Workshop. p. 33. - Constitutive Expression of the Maize Genes B1 and C1 in Transgenic Hi II Maize Results in Differential Tissue Pigmentation and Generates Resistance to Helicoverpa zea-(Peer Reviewed Journal)
Johnson, E.T., Berhow, M.A., Dowd, P.F. 2010. Constitutive Expression of the Maize Genes B1 and C1 in Transgenic Hi II Maize Results in Differential Tissue Pigmentation and Generates Resistance to Helicoverpa zea. Journal of Agricultural and Food Chemistry. 58(4):2403-2409. - Field Incidence of Mycotoxins in Commercial Popcorn and Potential Environmental Influences-(Peer Reviewed Journal)
Dowd, P.F., Johnson, E.T. 2009. Field incidence of mycotoxins in commercial popcorn and petential environmental influences. Mycotoxin Research. 26(1):15-22. - Differential Resistance of Switchgrass Cultivars to Fall Armyworms (Spodoptera frugiperda)-(Abstract Only)
Dowd, P.F., Johnson, E.T., Sarath, G., Vogel, K.P., Musser, R.O. 2009. Differential Resistance of Switchgrass Cultivars to Fall Armyworms (Spodoptera frugiperda). National Entomological Society of America Annual Meeting. Meeting abstract. - Differential Resistance of Switchgrass Panicum virgatum L. Lines to Fall Armyworms Spodoptera frugiperda (J. E. Smith)-(Peer Reviewed Journal)
Dowd, P.F., Johnson, E.T. 2009. Differential resistance of switchgrass Panicum virgatum L. lines to fall armyworms Spodoptera frugiperda (J. E. Smith). Genetic Resources and Crop Evolution. 56:1077-1089. DOI: 10.1007/s10722-009-9430-6 - Bioenergy Promise Versus a Bug: How Different Cultivars of Switchgrass Fare Against the Fall Armyworm (Spodoptera frugiperda)-(Abstract Only)
Dowd, P.F., Johnson, E.T. 2009. Bioenergy Promise Versus a Bug: How Different Cultivars of Switchgrass Fare Against the Fall Armyworm (Spodoptera frugiperda) [abstract]. American Society of Plant Biologists. Abstract No. 21. - Engineered Saccharomyces cerevisiae strain for improved xylose utilization with a three-plasmid SUMO yeast expression system-(Peer Reviewed Journal)
Hughes, S.R., Sterner, D.E., Bischoff, K.M., Hector, R.E., Dowd, P.F., Qureshi, N., Bang, S.S., Grynavyski, N., Chakrabarty, T., Johnson, E.T., Dien, B.S., Mertens, J.A., Caughey, R.J., Liu, S., Butt, T.R., Labaer, J., Cotta, M.A., Rich, J.O. 2009. Engineered Saccharomyces cerevisiae strain for improved xylose utilization with a three-plasmid SUMO yeast expression system. Plasmid Journal. 61(1):22-38. - Plant Insect Resistance Genes: An Important Aspect of Sustainable Bioenergy Crop Production -(Abstract Only)
Dowd, P.F., Johnson, E.T. 2008. Plant Insect Resistance Genes: An Important Aspect of Sustainable Bioenergy Crop Production [Abstract]. MWA Bioenergy Forum, Peoria, IL. Bioenergy Crop Production . Meeting Abstract. - Three-vector system for high-level functional expression of value-added co-products with xylose isomerase and xylulokinase in an industrial saccharomyces cerevisiae strain-(Abstract Only)
Hughes, S.R., Jackson Jr, J.S., Dowd, P.F., Hector, R.E., Bischoff, K.M., Sterner, D., Bang, S., Grynavyski, N., Chakrabarty, T., Johnson, E.T., Li, X., Caughey, R.J., Liu, S., Skory, C.D., Butt, T., Labaer, J., Dien, B.S., Saha, B.C., Bowen, M., Qureshi, N., Rich, J.O., Leathers, T.D., Cotta, M.A., Farrelly, P., Slininger P.J. 2008. Three-vector system for high-level functional expression of value-added co-products with Xylose Isomerase and Xylulokinase in an industrial Saccharomyces cerevisiae strain [abstract]. Cambridge Healthtech Institute, Second Generation Biofuels Development Summit. Poster #1. p. 4. - Colored and white sectors of petunia flowers display differential resistance to insect herbivores-(Abstract Only)
Johnson, E.T., Berhow, M.A., Dowd, P.F. 2008. Colored and white sectors of petunia flowers display differential resistance to insect herbivores [abstract]. Phytochemical Society of North America Proceedings. Abstract No. S9-3. p. 57. - Lycotoxin-1 insecticidal peptide optimized by amino acid scanning mutagenesis and expressed as a co-product in an ethanologenix Saccharomyces cerevisiae strain-(Peer Reviewed Journal)
Hughes, S.R., Dowd, P.F., Hector, R.E., Panavas, T., Sterner, D.E., Qureshi, N., Bischoff, K.M., Bang, S.B., Mertens, J.A., Johnson, E.T., Li, X., Jackson Jr, J.S., Caughey, R.J., Riedmuller, S.B., Bartolett, S., Liu, S., Rich, J.O., Farrelly, P.J., Butt, T.R., Labaer, J., Cotta, M.A. 2008. Lycotoxin-1 insecticidal peptide optimized by amino acid scanning mutagenesis and expressed as a co-product in an ethanologenix Saccharomyces cerevisiae strain. Journal of Peptide Science. 14(9):1039-1050. Available: http://www3.interscience.wiley.com/cgi-bin/fulltext/119030240/PDFSTART. - Altering Plant Secondary Metabolism to Achieve Broad Spectrum Insect Control and Reduce Mycotoxins-(Book / Chapter)
Johnson, E.T., Dowd, P.F., Pinkerton, T.S. 2008. Altering plant secondary metabolism to achieve broad spectrum insect control and reduce mycotoxins. In: Wolf, T. and Koch, J., editors. Genetically Modified Plants: New Research Trends. Hauppauge, NY: Nova Science Publishers. p. 151-172. - Genetically Modified Plants Containing Plant-Derived Genes for Broad Spectrum Insect Control to Reduce Mycotoxins: Bioactive Proteins-(Book / Chapter)
Dowd, P.F., Johnson, E.T., Pinkerton, T.S., Hughes, S.R. 2008. Genetically modified plants containing plant-derived genes for broad spectrum insect control to reduce mycotoxins. In: Wolf, T.V. and Koch, T.J.P., editors. Bioactive Proteins. Hauppauge, NY: Nova Science Publishers. p. 127-150. - Colored and White Sectors from Star-Patterned Petunia Flowers Display Differential Resistance to Corn Earworm and Cabbage Looper Larvae-(Peer Reviewed Journal)
Johnson, E.T., Berhow, M.A., Dowd, P.F. 2008. Colored and white sectors from star-patterned Petunia flowers display differential resistance to corn earworm and cabbage looper larvae. Journal of Chemical Ecology. 34:757-765. DOI: 10.1007/s10886-008-9444-0 - Colored and white sectors of petunia flowers display differential resistance to insect herbivores-(Abstract Only)
Johnson, E.T., Berhow, M.A., Dowd, P.F. 2008. Colored and white sectors of petunia flowers display differential resistance to insect herbivores [abstract]. American Society of Plant Biologists. p. 14. - Allelar sequences, substrates, and insect resistance conferred by a maize anionic peroxidase-(Abstract Only)
Dowd, P.F., Johnson, E.T., Pinkerton, T.S. 2008. Allelar sequences, substrates, and insect resistance conferred by a maize anionic peroxidase [abstract]. National Entomological Society of America Annual Meeting. Abstract No. D0672. - Measurement of tomato plant gene expression on a genomic scale for tomato plants that over express peroxidase-(Abstract Only)
Suzuki, H., Musser, R.O., Dowd, P.F., Johnson, E.T., Pinkerton, T.S. 2007. Measurement of tomato plant gene expression on a genomic scale for tomato plants that over express peroxidase [abstract]. Entomological Society of America Annual Meeting. Abstract No. D286. - Selectable markers with potential activity against insects, plus other insect-oriented strategies for mycotoxin reduction in Midwest corn-(Abstract Only)
Dowd, P.F., Johnson, E.T., Pinkerton, T.S. 2007. Selectable markers with potential activity against insects, plus other insect-oriented strategies for mycotoxin reduction in Midwest corn [abstract]. Multicrop Aflatoxin and Fumonisin Elimination and Fungal Genomics Workshop-The Peanut Foundation. p.117 - Excision of the piggyBac transposable element in maize cells is a precise event-(Abstract Only)
Johnson, E.T., Dowd, P.F. 2007. Excision of the piggyBac transposable element in maize cells is a precise event [abstract]. American Society of Plant Biologists Annual Meeting. Paper No. P36032 - Transgenic phenolic production in corn silks moderately enhances insect resistance-(Abstract Only)
Johnson, E.T., Berhow, M.A., Dowd, P.F. 2006. Transgenic phenolic production in corn silks moderately enhances insect resistance [abstract]. American Chemical Society Abstracts. Paper No. AGFD 155. - Fully automated molecular biology routines on a plasmid-based functional proteomic workcell: Evaluation and Characterization of Yeast Strains Optimized for Growth on Xylose Expressing "Stealth" Insecticidal Peptides.-(Abstract Only)
Hughes, S.R., Li, X., Hector, R.E., Bischoff, K.M., Cotta, M.A., Mertens, J.A., Dowd, P.F., Johnson, E.T. 2007. Fully automated molecular biology routines on a plasmid-based functional proteomic workcell: Evaluation and characterization of yeast strains optimized for growth on xylose expressing "stealth" insecticidal peptides [abstract]. American Chemical Society. p. 108. - Oral toxicity of beta-N-acetyl hexosaminidase to insects-(Peer Reviewed Journal)
Dowd, P.F., Johnson, E.T., Pinkerton, T.S. 2007. Oral toxicity of beta-N-acetyl hexosaminidase to insects. Journal of Agricultural and Food Chemistry. 55(9):3421-3428. - Expression of a maize Myb transcription factor driven by a putative silk-specific promoter significantly enhances resistance to Helicoverpa zea in transgenic maize-(Peer Reviewed Journal)
Johnson, E.T., Berhow, M.A., Dowd, P.F. 2007. Expression of a maize Myb transcription factor driven by a putative silk-specific promoter significantly enhances resistance to Helicoverpa zea in transgenic maize. Journal of Agricultural and Food Chemistry. 55(8):2998-3003. - Evidence for hexosaminidase as an insect resistance factor of plants-(Abstract Only)
Dowd, P.F., Johnson, E.T., Pinkerton, T.S. 2006. Evidence for hexosaminidase as an insect resistance factor of plants [abstract]. National Entomological Society of America Annual Meeting. Paper No. 1063. - Examination of genes newly introduced into plants for control of corn insects associated with mycotoxin problems-(Abstract Only)
Dowd, P.F., Johnson, E.T., Pinkerton, T.S., Behle, R.W., Berhow, M.A. 2006. Examination of genes newly introduced into plants for control of corn insects associated with mycotoxin problems [abstract]. 2006 Annual Multicrop Aflatoxin/Fumonisin Elimination and Fungal Genomics Workshop. p. 89. - P1-MEDIATED TRANSGENIC SECONDARY METABOLITE PRODUCTION IN CORN SILKS MODERATELY ENHANCES INSECT RESISTANCE-(Abstract Only)
Johnson, E.T., Dowd, P.F., Berhow, M.A. 2006. P1-mediated transgenic secondary metabolite production in corn silks moderately enhances insect resistance [abstract]. Phytochemical Society of North America Meeting and Newsletter. p. 16. - EXTRACTION AND CHARACTERIZATION OF ANTHOCYANINS FROM PIGMENTED FLOWERS AND BLACK SEED HULLS-(Abstract Only)
Berhow, M.A., Johnson, E.T., Dowd, P.F., Duval, S.M. 2006. Extraction and characterization of anthocyanins from pigmented flowers and black seed hulls [abstract]. Phytochemical Society of North America Meeting and Newsletter. p. 22 - Activity of plant phenolics functioning as sources of insect resistance in plants-(Abstract Only)
Dowd, P.F., Musser, R.O., Johnson, E.T. 2007. Activity of plant phenolics functioning as sources of insect resistance in plants [abstract]. American Chemical Society Abstracts. Abstract No. AGFD152. - RELATIVE ACTIVITY OF A TOBACCO HYBRID EXPRESSING HIGH LEVELS OF A TOBACCO ANIONIC PEROXIDASE AND MAIZE RIBOSOME-INACTIVATING PROTEIN AGAINST HELICOVERPA ZEA AND LASIODERMA SERRICORNE-(Peer Reviewed Journal)
Dowd, P.F., Holmes, R.A., Pinkerton, T.S., Johnson, E.T., Lagrimini, L.M., Boston, R.S. 2006. Relative activity of a tobacco hybrid expressing high levels of a tobacco anionic peroxidase and maize ribosome-inactivating protein against Helicoverpa zea and Lasioderma serricorne. Journal of Agricultural and Food Chemistry. 54(7):2629-2634. - RELATIVE RESISTANCE OF TOBACCO EXPRESSING TWO PLANT-DERIVED RESISTANCE MECHANISMS TO REPRESENTATIVE INSECTS-(Abstract Only)
Dowd, P.F., Holmes, R., Pinkerton, T.S., Johnson, E.T., Langramini, M., Boston, R.S. 2005. Relative resistance of tobacco expressing two plant-derived resistance mechanisms to representative insects [abstract]. Entomological Society of America Proceedings. Paper No. D0288. - ANTHOCYANINS FROM PETUNIA FLORAL STRUCTURES THAT INHIBIT CORN EARWORM DEVELOPMENT-(Abstract Only)
Johnson, E.T., Dowd, P.F. 2005. Anthocyanins from petunia floral structures that inhibit corn earworm development. Aflatoxin Elimination Workshop Proceedings, October 24-26, 2005, Raleigh, NC. Poster #C-1. - ANTHOCYANINS PRESENT IN COLORED PETUNIA COROLLAS INHIBIT CORN EARWORM DEVELOPMENT-(Abstract Only)
Johnson, E.T., Berhow, M.A., Dowd, P.F. 2005. Anthocyanins present in colored petunia corollas inhibit corn earworm development [abstract]. American Society of Plant Biologists Annual Meeting. Abstract No. 323. - STRATEGIES FOR INSECT MANAGEMENT TARGETED TOWARD MYCOTOXIN MANAGEMENT-(Book / Chapter)
Dowd, P.F., Johnson, E.T., Williams, W.P. 2005. Strategies for insect management targeted toward mycotoxin management. In: Abbas, H., editor. Aflatoxin and Food Safety. New York, NY: Marcell-Dekker. p. 517-541. - ASSOCIATION OF A SPECIFIC CATIONIC PEROXIDASE ISOZYME WITH MAIZE STRESS AND DISEASE RESISTANCE RESPONSES, GENETIC IDENTIFICATION AND IDENTIFICATION OF A CDNA CODING FOR THE ISOZYME-(Peer Reviewed Journal)
Dowd, P.F., Johnson, E.T. 2005. Association of a specific cationic peroxidase isozyme with maize stress and disease resistance responses, genetic identification and identification of a cDNA coding for the isozyme. Journal of Agricultural and Food Chemistry 53(11):4464-4470. - PLANT-DERIVED GENES FOR PEST MANAGEMENT-(Abstract Only)
Dowd, P.F., Johnson, E.T., Pinkerton, T.S. 2004. Plant-derived genes for pest management [abstract]. First Annual Peoria NEXT All-Science Assembly. Paper No. 14. p. 35 - NEW PLANT-DERIVED GENES AND GENE PRODUCTS WITH ACTIVITY AGAINST CORN EAR PESTS AND STRATEGIES FOR DEPLOYMENT-(Abstract Only)
Dowd, P.F., Johnson, E.T. 2006. New plant-derived genes and gene products with activity against corn ear pests and strategies for deployment [abstract]. Aflatoxin Elimination Workshop Proceedings. p. 98. - INSECT MANAGEMENT FOR REDUCTION OF MYCOTOXINS FY 2004 REPORT-(Proceedings)
Dowd, P.F., Berhow, M.A., Boston, R.S., Duvick, J.P., Johnson, E.T., Lagrimini, L.M., White, D.G. 2005. Insect management for reduction of mycotoxins FY 2004 report. In: Proceedings of the 2004 Multicrop Aflatoxin/Fumonisin Elimination and Fungal Genomics Workshop, October 16-28, 2004, Sacramento, California. p. 98. - LEAF AXIL SAMPLING OF MIDWEST U.S. MAIZE FOR MYCOTOXIGENIC FUSARIUM FUNGI USING PCR ANALYSIS-(Peer Reviewed Journal)
Dowd, P.F., Barnet, C.J., Johnson, E.T., Beck, J.J. 2005. Leaf axil sampling of Midwest U.S. maize for mycotoxigenic Fusarium fungi using PCR analysis. Mycopathologia. 258:431-440. - METHYLATION OF AN ANTHOCYANIN INCREASES ITS ABILITY TO INHIBIT GROWTH OF CORN EARWORM LARVAE-(Abstract Only)
Johnson, E.T., Dowd, P.F. 2004. Methylation of an anthocyanin increases its ability to inhibit growth of corn earworm larvae [abstract]. American Society of Plant Biologists Annual Meeting. Abstract No. 493. - DIFFERENTIALLY ENHANCED INSECT RESISTANCE, AT A COST, IN ARABIDOPSIS THALIANA CONSTITUTIVELY EXPRESSING A TRANSCRIPTION FACTOR OF DEFENSIVE METABOLITES-(Peer Reviewed Journal)
Johnson, E.T., Dowd, P.F. Differentially enhanced insect resistance, at a cost, in Arabidopsis thaliana constitutively expressing a transcription factor of defensive metabolites. Journal of Agricultural and Food Chemistry. 52(16):5135-5138. - MANAGEMENT OF INSECTS INVOLVED IN PRE-HARVEST MYCOTOXIN CONTAMINATION IN MAIZE-(Abstract Only)
Johnson, E.T., Dowd, P.F. 2004. Management of insects involved in pre-harvest mycotoxin contamination in maize [abstract]. International IUPAC Symposium on Mycotoxins and Phycotoxins. Abstract #C-06, p. 79. - INSECT MANAGEMENT FOR REDUCTION OF MYCOTOXINS FY2003 REPORT-(Proceedings)
Dowd, P.F., Barnett, R.J., Bartelt, R.J., Beck, J.J., Berhow, M.A., Boston, R.S., Duvick, J.P., Johnson, E.T., Lagrimini, L.M., Molid, G., White, D. 2004. Insect management for reduction of mycotoxins FY 2003 report. Aflatoxin Elimination Workshop Proceedings. p. 13-14. - MAIZE LEAF AXIL MATERIALS AS A SOURCE FOR MONITORING PREVALENCE OF MYCOTOXIGENIC FUSARIUM SPECIES BY PCR ANALYSIS-(Abstract Only)
Dowd, P.F., Barnett, R.J., Johnson, E.T., Beck, J.J. 2003. Maize leaf axil materials as a source for monitoring prevalence of mycotoxigenic fusarium species by pcr analysis. Aflatoxin Elimination, Fumonisin Elimination, and Fungal Genomics Workshops, October 13-15,2003, Savannah, GA. Mycopathologia 158:431-440. - PLANT ANTHOCYANIN INSECT FEEDING DETERRENTS-(Abstract Only)
Johnson, E.T., Dowd, P.F. 2003. Plant Anthocyanin Insect Feeding Deterrents [abstract]. Phytochemical Society of North America. Abstract Neish Symposia 10. - ENHANCED RESISTANCE TO HELICOVERPA ZEA IN TOBACCO EXPRESSING AN ACTIVATED FORM OF MAIZE RIBOSOME-INACTIVATING PROTEIN`-(Peer Reviewed Journal)
Dowd, P.F., Zuo, W.N., Gillikin, J., Johnson, E.T., Boston, R.S. Enhanced resistance to Helicoverpa zea in tobacco expressing an activated form of maize ribosome-inactivating protein. Journal of Agricultural and Food Chemistry 51(12):3568-3574.
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INVITED CONFERENCE LECTURES AND DEPARTMENTAL SEMINARS
2003 Invited presentation entitled “Plant anthocyanin insect feeding deterrents” at the Art Niesh Young Investigator Symposium, Phytochemical Society of North America Annual Meeting, Peoria, Illinois.
2007 Invited presentation entitled “Transgenic phenolic production in maize silks moderately enhances insect resistance” in a symposium on Functional Plant Phenolics, 233rd National Meeting and Exposition of the American Chemical Society, Chicago, Illinois.
2007 Invited to write book chapter “Genetically Modified Plants: New Research Trends” by Editor-in-Chief of Nova Science Publishers.
2009 Invited to present a seminar entitled "Can anthocyanins function as insect resistance molecules?" in the Biology Department, Western Illinois University.
2011 Invited to present a seminar entitled "Use of computer algorithms to discover novel regulatory elements of a plant biosynthetic pathway" in the Computer Science Department, Old Dominion University.
2012 Invited to present a seminar entitled "Discovery of novel insect resistance mechanisms for use in plants" in the Biological Sciences Department, Illinois State University.
2014 Invited to present a seminar entitled "Discovery of insect resistance mechanisms for use in plants" in the Biology Department, Bradley University.
2017 Invited to present a seminar entitled "Characterization of novel insect and fungal resistance proteins of maize and sorghum" in the Chemistry Department at Pukyong National University, South Korea and in the Biology Department at the Korea Advanced Institute of Science and Technology.
