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United States Department of Agriculture

Agricultural Research Service

Paul J Weimer
U.S. Dairy Forage Research Center
Microbiologist

Phone: (608) 890-0075
Fax: (608) 890-0076
1925 LINDEN DR W
MADISON, WI, 53706-1108

Projects
Determining Influence of Microbial, Feed, and Animal Factors on Efficiency of Nutrient Utilization and Performance in Lactating Dairy Cows
Appropriated (D)
  Accession Number: 422301
Improvement of Consolidated Bioprocessing of Cellulosic Biomass Using Genomic, Proteomic, and Synthetic Approaches
Nonfunded Cooperative Agreement (N)
  Accession Number: 419866
Deciphering the Genetic and Molecular Underpinnings of Carbohydrate Degrading Systems in Ruminal Bacteria
Reimbursable (R)
  Accession Number: 423343
Determining the Biological Basis of Genetic Variation in Forage and Feed Utilization Efficiency in Lactating Dairy Cattle
Specific Cooperative Agreement (S)
  Accession Number: 427527

Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
Improving ethanol production from alfalfa stems via ambient-temperature acid pretreatment and washing - (Peer Reviewed Journal)
Zhou, S., Weimer, P.J., Hatfield, R.D., Runge, T.M., Digman, M. 2014. Improving ethanol production from alfalfa stems via ambient-temperature acid pretreatment and washing. Bioresource Technology. 170:286-292.
High dry matter whole-plant corn as a biomass feedstock - (Peer Reviewed Journal)
Cook, D.E., Shinners, K.J., Weimer, P.J., Muck, R.E. 2014. High dry matter whole-plant corn as a biomass feedstock. Biomass and Bioenergy. 94:230-236.
A syndrome of mutualism reinforces the lifestyle of a sloth Reprint Icon - (Peer Reviewed Journal)
Pauli, J., Mendoza, J., Steffan, S.A., Carey, C.C., Weimer, P.J., Peery, Z. 2014. A syndrome of mutualism reinforces the lifestyle of a sloth. Proceedings of the Royal Society B. 281:20133006.
Changes in ruminal bacterial community composition in steers in response to dietary nitrate Reprint Icon - (Peer Reviewed Journal)
Lin, M., Guo, W.S., Meng, Q.X., Stevenson, D.M., Weimer, P.J., Schaefer, D.M. 2013. Changes in ruminal bacterial community composition in steers in response to dietary nitrate. Applied Microbiology and Biotechnology. 97:8719-8727.
Unique interrelationships between fiber composition, water-soluble carbohydrates, and in vitro gas production for fall-grown oat forages Reprint Icon - (Peer Reviewed Journal)
Coblentz, W.K., Nellis, S.A., Hoffman, P.C., Hall, M., Weimer, P.J., Esser, N.M., Bertram, M.G. 2013. Unique interrelationships between fiber composition, water-soluble carbohydrates, and in vitro gas production for fall-grown oat forages. Journal of Dairy Science. 96:7195-7209.
The ruminant animal as a natural biomass conversion platform and a source of bioconversion agents - (Book / Chapter)
Weimer, P.J. 2014. The ruminant animal as a natural biomass conversion platform and a source of bioconversion agents. In: Sun, J., Ding, S.-Y., Peterson, J.D., editors. Biological Conversion of Biomass for Fuels and Chemicals: Explorations from Natural Biomass Utilization Systems. London: Royal Society of Chemistry. p. 248-281.
Fermentation of alfalfa wet-fractionation liquids to volatile fatty acids by Streptococcus bovis and Megasphaera elsdenii - (Peer Reviewed Journal)
Weimer, P.J., Digman, M.F. 2013. Fermentation of alfalfa wet-fractionation liquids to volatile fatty acids by Streptococcus bovis and Megasphaera elsdenii. Bioresource Technology. 142:88-94.
In vitro degradation and fermentation of three dietary fiber sources by human colonic bacteria Reprint Icon - (Peer Reviewed Journal)
Bliss, D.Z., Weimer, P.J., Jung, H.G., Savik, K. 2013. In vitro degradation and fermentation of three dietary fiber sources by human colonic bacteria. Journal of Agricultural and Food Chemistry. 61:4614-4621.
Quantitative analysis of growth and volatile fatty acid production by the anaerobic ruminal bacterium Megasphaera elsdenii T81 Reprint Icon - (Peer Reviewed Journal)
Weimer, P.J., Moen, G.N. 2013. Quantitative analysis of growth and volatile fatty acid production by the anaerobic ruminal bacterium Megasphaera elsdenii T81. Applied Microbiology and Biotechnology. 97(9):4075-4081.
Lactobacillus plantarum effects on silage fermentation and in vitro microbial yield Reprint Icon - (Peer Reviewed Journal)
Contreras-Govea, F.E., Muck, R.E., Broderick, G.A., Weimer, P.J. 2013. Lactobacillus plantarum effects on silage fermentation and in vitro microbial yield. Animal Feed Science And Technology. 179(1):61-68.
Individual animal variability in ruminal bacterial communities and ruminal acidosis in primiparous Holstein cows during the periparturient period Reprint Icon - (Peer Reviewed Journal)
Mohammed, R., Stevenson, D.M., Weimer, P.J., Penner, G.B., Beauchemin, K.A. 2012. Individual animal variability in ruminal bacterial communities and ruminal acidosis in primiparous Holstein cows during the periparturient period. Journal of Dairy Science. 95:6716-6730.
Challenges to increase the efficiency of nutrient utilization in the rumen - (Proceedings)
Weimer, P.J. 2012. Challenges to increase the efficiency of nutrient utilization in the rumen. In: Proceedings of Zootec 2012, XIV International Congress on Animal Science, May 13-18, 2012, Cuiaba, Brazil, p. 21-46.
Changes in rumen bacterial communities and rumen chemistry in primiparous Holstein cows during the periparturient period - (Abstract Only)
Mohammed, R., Stevenson, D.M., Weimer, P.J., Penner, G.B., Beauchemin, K.B. 2012. Changes in rumen bacterial communities and rumen chemistry in primiparous Holstein cows during the periparturient period [abstract]. Journal of Dairy Science. 95(suppl 2):615.
Orchardgrass forage effects on bacterial communities and long-chain fatty acid profiles in the rumen of Holstein heifers - (Abstract Only)
Mohammed, R., Brink, G.E., Stevenson, D.M., Beauchemin, K.A., Weimer, P.J. 2012. Orchardgrass forage effects on bacterial communities and long-chain fatty acid profiles in the rumen of Holstein heifers [abstract]. Journal of Dairy Science. 95(suppl 2):614.
Isolation, characterization and quantification of Clostridium kluyveri from the bovine rumen Reprint Icon - (Peer Reviewed Journal)
Weimer, P.J., Stevenson, D.M. 2012. Isolation, characterization and quantification of Clostridium kluyveri from the bovine rumen. Applied Microbiology and Biotechnology. 94:461-466.
Changes in ruminal bacterial community composition following feeding of alfalfa silage inoculated with a commercial silage inoculant Reprint Icon - (Peer Reviewed Journal)
Mohammed, R., Stevenson, D.M., Beauchemin, K.A., Muck, R.E., Weimer, P.J. 2012. Changes in ruminal bacterial community composition following feeding of alfalfa silage inoculated with a commercial silage inoculant. Journal of Dairy Science. 95:328-339.
Complete genome of the cellulolytic ruminal bacterium Ruminococcus albus 7 Reprint Icon - (Peer Reviewed Journal)
Suen, G., Stevenson, D.M., Bruce, D., Chertkov, O., Copeland, A., Cheng, J., Detter, C., Detter, J.C., Goodwin, L.A., Han, C.S., Hauser, L.J., Ivanova, N.N., Kyrpides, N.C., Land, M.L., Lapidus, A., Lucas, S., Ovchinnikova, G., Pitluck, S., Tapia, R., Woyke, T., Boyum, J., Mead, D., Weimer, P.J. 2011. Complete genome of the cellulolytic ruminal bacterium Ruminococcus albus 7. Journal of Bacteriology. 193:5574-5575.
Fiber digestion, VFA production, and microbial population changes during in vitro ruminal fermentations of mixed rations by monensin-adapted and unadapted microbes Reprint Icon - (Peer Reviewed Journal)
Weimer, P.J., Stevenson, D.M., Mertens, D.R., Hall, M. 2011. Fiber digestion, VFA production, and microbial population changes during in vitro ruminal fermentations of mixed rations by monensin-adapted and unadapted microbes. Animal Feed Science And Technology. 169:68-78.
The complete genome sequence of Fibrobacter succinogenes S85 reveals a cellulolytic and metabolic specialist Reprint Icon - (Peer Reviewed Journal)
Suen, G., Weimer, P.J., Stevenson, D.M., Aylward, F.O., Boyum, J., Deneke, J., Drinkwater, C., Ivanova, N., Mikhailova, N., Chertkov, O., Goodwin, L.A., Currie, C.R., Mead, D., Brumm, P.J. 2011. The complete genome sequence of Fibrobacter succinogenes S85 reveals a cellulolytic and metabolic specialist. PLoS One. 6(4):e18814.
Novel technologies in rumen microbiology: What have we learned? - (Proceedings) - (07-Mar-11)
Changes in rumen bacterial community composition following feeding of silage inoculated with a commercial silage inoculant - (Abstract Only)
Mohammed, R., Stevenson, D.M., Beauchemin, K.A., Weimer, P.J., Muck, R.E. 2011. Changes in rumen bacterial community composition following feeding of silage inoculated with a commercial silage inoculant. Journal of Dairy Science. 94(E-Supplement 1):390.
End product yields from the extraruminal fermentation of various polysaccharide, protein and nucleic acid components of biofuels feedstocks Reprint Icon - (Peer Reviewed Journal)
Weimer, P.J. 2011. End product yields from the extraruminal fermentation of various polysaccharide, protein and nucleic acid components of biofuels feedstocks. Bioresource Technology. 102:3254-3259.
Microbial inoculant effects on silage and in vitro ruminal fermentation, and microbial biomass estimation for alfalfa, bmr corn, and corn silages Reprint Icon - (Peer Reviewed Journal)
Contreras-Govea, F.E., Muck, R.E., Mertens, D.R., Weimer, P.J. 2011. Microbial inoculant effects on silage and in vitro ruminal fermentation, and microbial biomass estimation for alfalfa, bmr corn, and corn silages. Animal Feed Science and Technology. 163:2-10.
James Bernard Russell: Scholar, collaborator, mentor - (Proceedings)
Weimer, P.J., Callaway, T.R. 2010. James Bernard Russell: Scholar, collaborator, mentor. In: Proceedings of 2010 Cornell Nutrition Conference for Feed Manufacturers, October 19-21, 2010, East Syracuse, New York. p. 105-112.
Host specificity of the ruminal bacterial community in the dairy cow followng near-total exchange of ruminal contents Reprint Icon - (Peer Reviewed Journal)
Weimer, P.J., Stevenson, D.M., Mantovani, H., Man, S. 2010. Host specificity of the ruminal bacterial community in the dairy cow followng near-total exchange of ruminal contents. Journal of Dairy Science. 93:5902-5912.
An insect herbivore microbiome with high plant biomass-degrading capacity Reprint Icon - (Peer Reviewed Journal)
Suen, G., Scott, J.J., Aylward, F.O., Adams, S.M., Tringe, S.G., Pinto-Tomas, A.A., Foster, C.E., Pauly, M., Weimer, P.J., Barry, K.W., Goodwin, L.A., Bouffard, P., Osterberger, J., Harkins, T.T., Slater, S.C., Donohue, T.J., Currie, C.R. 2010. An insect herbivore microbiome with high plant biomass-degrading capacity. PLoS Genetics. 6(9):e1001129.
Functional annotation of Fibrobacter succinogenes S85 carbohydrate active enzymes Reprint Icon - (Peer Reviewed Journal)
Brumm, P., Mead, D., Boyum, J., Drinkwater, C., Gowda, K., Stevenson, D.M., Weimer, P.J. 2011. Functional annotation of Fibrobacter succinogenes S85 carbohydrate active enzymes. Applied Biochemistry and Biotechnology. 163:649-657.
Aerobic and anaerobic storage of single-pass, chopped corn stover Reprint Icon - (Peer Reviewed Journal)
Shinners, K.J., Wepner, A.D., Muck, R.E., Weimer, P.J. 2011. Aerobic and anaerobic storage of single-pass, chopped corn stover. BioEnergy Research. 4:61-75.
On-farm Preservation and Pretreatment of Perennial Grasses for Fuel Ethanol Production - (Abstract Only) - (21-May-10)
Harvesting and Storing of Two Perennial Grasses as Biomass Feedstocks Reprint Icon - (Peer Reviewed Journal)
Shinners, K.J., Boettcher, G.C., Muck, R.E., Weimer, P.J., Casler, M.D. 2010. Harvesting and Storing of Two Perennial Grasses as Biomass Feedstocks. Transactions of the ASABE. 53(2):359-370.
Functional annotation of Fibrobacter succinogenes carbohydrate active enzymes - (Proceedings)
Brumm, P., Mead, D., Boyum, J., Drinkwater, C., Gowda, K., Stevenson, D.M., Weimer, P.J. 2010. Functional annotation of Fibrobacter succinogenes carbohydrate active enzymes. Applied Biochemistry and Biotechnology. 163:649-657.
Optimizing On-farm Pretreatment of Perennial Grasses for Fuel Ethanol Production - (Peer Reviewed Journal)
Digman, M.F., Shinners, K.J., Casler, M.D., Dien, B.S., Hatfield, R.D., Jung, H.G., Muck, R.E., Weimer, P.J. 2010. Optimizing On-farm Pretreatment of Perennial Grasses for Fuel Ethanol Production. Bioresource Technology. 101:5305-5314.
Plant species composition and biofuel yields of conservation grasslands - (Abstract Only)
Adler, P.R., Sanderson, M.A., Weimer, P.J., Vogel, K.P. 2010. Plant species composition and biofuel yields of conservation grasslands. Meeting Abstract. p. 1.
Comparative Study of SPORL and Dilute Acid Pretreatments of Spruce for Cellulosic Ethanol Production - (Peer Reviewed Journal)
Shuai, L., Yang, Q., Zhu, J.Y., Lu, F.C., Weimer, P.J., Ralph, J., Pan, X.J. 2010. Comparative Study of SPORL and Dilute Acid Pretreatments of Spruce for Cellulosic Ethanol Production. Bioresource Technology. 101:3106-3114.
Shifts in Bacterial Community Composition in the Rumen of Lactating Dairy Cows Under Conditions of Milk Fat Depression - (Peer Reviewed Journal)
Weimer, P.J., Stevenson, D.M., Mertens, D.R. 2010. Shifts in Bacterial Community Composition in the Rumen of Lactating Dairy Cows Under Conditions of Milk Fat Depression. Journal of Dairy Science. 93:265-278.
Effects of forage quality and cell wall constituents of bermudagrass on biochemical conversion to ethanol - (Peer Reviewed Journal)
Anderson, W.F., Dien, B.S., Jung, H.G., Vogel, K.P., Weimer, P.J. 2010. Effects of forage quality and cell wall constituents of bermudagrass on biochemical conversion to ethanol. BioEnergy Research. 3:225-237.
Symbiotic Nitrogen Fixation in the Fungus Gardens of Leaf-Cutter Ants - (Peer Reviewed Journal)
Pinto-Tomas, A.A., Anderson, M.A., Suen, G., Stevenson, D.M., Chu, F.S., Cleland, W.W., Weimer, P.J., Currie, C.R. 2009. Symbiotic Nitrogen Fixation in the Fungus Gardens of Leaf-Cutter Ants. Science. 326:1120-1123.
pH Dynamics and Bacterial Community Composition in the Rumen of Lactating Dairy Cows - (Peer Reviewed Journal)
Palmonari, A., Stevenson, D.M., Mertens, D.R., Cruywagen, C.W., Weimer, P.J. 2010. pH Dynamics and Bacterial Community Composition in the Rumen of Lactating Dairy Cows. Journal of Dairy Science. 93:279-287.
Lactobacillus plantarum MTD/1, Its Impact on Silage and In vitro Rumen Fermentation - (Proceedings)
Contreras-Govea, F.E., Muck, R.E., Broderick, G.A., Weimer, P.J. 2009. Lactobacillus plantarum MTD/1, Its Impact on Silage and In vitro Rumen Fermentation. In: Broderick, G.A., Adesogan, A.T., Bocher, L.W., Bolsen, K.K., Contreras-Govea, F.E., Harrison, J.H., Muck, R.E., editors. XVth International Silage Conference Proceedings, July 27-29, 2009, Madison, Wisconsin. p. 57-58.
Storage and Pretreatment of Biomass Feedstocks by Ensiling - (Proceedings)
Shinners, K.J., Digman, M.F., Muck, R.E., Weimer, P.J. 2009. Storage and Pretreatment of Biomass Feedstocks by Ensiling. In: Broderick, G.A., Adesogan, A.T., Bocher, L.W., Bolsen, K.K., Contreras-Govea, F.E., Harrison, J.H., Muck, R.E., editors. XVth International Silage Conference Proceedings, July 27-29, 2009, Madison, Wisconsin. p. 191-192.
The Effect of LAB Silage Inoculants on the Rumen Environment--Current Research Status - (Proceedings)
Weinberg, Z.G., Miron, J., Chen, Y., Muck, R.E., Contrera-Govea, F.E., Weimer, P.J., Filya, I., Kung, L. 2009. The Effect of LAB Silage Inoculants on the Rumen Environment--Current Research Status. In: Broderick, G.A., Adesogan, A.T., Bocher, L.W., Bolsen, K.K., Contreras-Govea, F.E., Harrison, J.H., Muck, R.E., editors. XVth International Silage Conference Proceedings, July 27-29, 2009, Madison, Wisconsin. p. 55-56.
Arisa Analysis of Ruminal Bacterial Community Dynamics in Lactating Dairy Cows During the Feeding Cycle Reprint Icon - (Peer Reviewed Journal)
Welkie, D.G., Stevenson, D.M., Weimer, P.J. 2010. ARISA Analysis of Ruminal Bacterial Community Dynamics in Lactating Dairy Cows During the Feeding Cycle. Anaerobe. 16:94-100. Available: http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6W9T-4WS9BX0-1&_user=443835&_coverDate=07%2F15%2F2009&_alid=994024418&_rdoc=1&_fmt=high&_orig=search&_cdi=6691&_sort=r&_docanchor=&view=c&_ct=1&_acct=C000020958&_version=1&_urlVersion=0&_userid=443835&md5=430b304a5100379b1590594fd471a304
Lessons From the Cow: What the Ruminant Animal Can Teach Us About Consolidated Bioprocessing of Cellulosic Biomass - (Peer Reviewed Journal)
Weimer, P.J., Russell, J.B., Muck, R.E. 2009. Lessons From the Cow: What the Ruminant Animal Can Teach Us About Consolidated Bioprocessing of Cellulosic Biomass. Bioresource Technology. 100:5323-5331.
pH Dynamics and Bacterial Community Composition in the Rumen of Lactating Dairy Cows - (Abstract Only) - (09-Mar-09)
Forage Quality and Composition Measurements as Predictors of Ethanol Yield from Maize (Zea mays L.) Stover Reprint Icon - (Peer Reviewed Journal)
Lorenz, A.A., Anex, R.P., Isci, A., Coors, J.G., deLeon, N., Weimer, P.J., Wolfrum, E.J. 2009. Forage Quality and Composition Measurements as Predictors of Ethanol Yield from Maize (Zea mays L.) Stover. Biotechnology for Biofuels. 2:5.
Plant species composition and biofuel yields of conservation grasslands Reprint Icon - (Peer Reviewed Journal)
Adler, P.R., Sanderson, M.A., Weimer, P.J., Vogel, K.P. 2009. Plant species composition and biofuel yields of conservation grasslands. Ecological Applications. 19(8):2202-2209.
Grasses and Legumes for Bio-Based Products - (Book / Chapter)
Weimer, P.J., Morris, J.B. 2009. Grasses and Legumes for Bio-Based Products. In: Wedin, W.F., Fales, S.L. editors. Grassland: Quietness and Strength for a New American Agriculture. Madison, WI: American Society for Agronomy/Crop Science Society of America/Soil Science Society of America. p. 221-233.
Grasses and Legumes for Cellulosic Bioenergy - (Book / Chapter)
Casler, M.D., Heaton, E., Shinners, K.J., Jung, H.G., Weimer, P.J., Liebig, M.A., Mitchell, R., Digman, M.F. 2009. Grasses and Legumes for Cellulosic Bioenergy. In: Wedin, W.F. and Fales, S.L., editors. Grassland: Quietness and Strength for a New American Agriculture. Madison, Wisconsin: ASA-CSSS-SSSA. p. 205-219.
Quantitative analysis of cellulose degradation and growth of cellulolytic bacteria in the rumen - (Peer Reviewed Journal)
Russell, J.B., Muck, R.E., Weimer, P.J. 2009. Quantitative analysis of cellulose degradation and growth of cellulolytic bacteria in the rumen. FEMS Microbiology Ecology. 67(2):183-197.
Characterization, Genetic Variation, and Combining Ability of Maize Traits Beneficial to the Production of Cellulosic Ethanol - (Peer Reviewed Journal)
Lorenz, A.J., Coors, J.G., De Leon, N., Wolfrum, E.J., Hames, B.R., Sluiter, A.D., Weimer, P.J. 2009. Characterization, Genetic Variation, and Combining Ability of Maize Traits Beneficial to the Production of Cellulosic Ethanol. Crop Science. 49:85-98.
Effect of Monensin Feeding and Withdrawal on Populations of Individual Bacterial Species in the Rumen of Lactating Dairy Cows Fed High-Starch Rations - (Peer Reviewed Journal)
Weimer, P.J., Stevenson, D.M., Mertens, D.R., Thomas, E.E. 2008. Effect of monensin feeding and withdrawal on populations of individual bacterial species in the rumen of lactating dairy cows fed high-starch rations. Applied Microbiology and Biotechnology. 80(1):135-145.
Response of thermochemical and biochemical conversion processes to lignin concentration in alfalfa stems - (Peer Reviewed Journal)
Boateng, A.A., Weimer, P.J., Jung, H.G., Lamb, J.F. 2008. Response of thermochemical and biochemical conversion processes to lignin concentration in alfalfa stems. Energy and Fuels. 22:2810-2815.
Plant species composition and biofuel yields of conservation grasslands - (Abstract Only)
Adler, P.R., Sanderson, M.A., Weimer, P.J., Vogel, K.P. 2008. Plant species composition and biofuel yields of conservation grasslands. Ecological Society of America Abstracts. Paper No. 38-5.
Factors Affecting Activity of Cellulolytic Microbes in the Rumen - (Abstract Only)
Weimer, P.J. 2008. Factors affecting activity of cellulolytic microbes in the rumen [abstract]. Journal of Dairy Science E-Supplement 1. 91:115.
Bacterial Population Shifts in the Rumen of Lactating Dairy Cows Within and Across Feeding Cycles - (Abstract Only)
Welkie, D.M., Stevenson, D.M., Weimer, P.J. 2008. Bacterial population shifts in the rumen of lactating dairy cows within and across feeding cycles [abstract]. Journal of Dairy Science E-Supplement 1. 91:336.
Single-pass harvest of corn grain and stover: performance of three harvester configurations - (Peer Reviewed Journal)
Shinners, K.J., Boettcher, G.C., Hoffman, D.S., Munk, J.T., Muck, R.E., Weimer, P.J. 2009. Single-Pass Harvest of Corn Grain and Stover: Performance of Three Harvester Configurations. Transactions of the ASABE. 52(1):51-60.
A Novel Pretreatment (Diethyl Oxalate) Releasing Fermentable Sugars and Useful Fibers from Lignocellulose - (Abstract Only) - (02-May-07)
Effect of Monensin Feeding and Withdrawal on Ruminal Populations of Individual Bacterial Species in Cows Fed High-Starch Diets - (Abstract Only)
Weimer, P.J., Stevenson, D.M., Mertens, D.R., Thomas, E.E. 2007. Effect of monensin feeding and withdrawal on ruminal populations of individual bacterial species in cows fed high-starch diets [abstract]. Journal of Dairy Science 90(Supplement 1):175.
Bio-based adhesives from residues of consolidated bioprocessing of cellulosic substrates - (Abstract Only)
Weimer, P.J., Frihart, C.R., Lorenz, L.F., Kenealy, W.R. 2007. Bio-based adhesives from residues of consolidated bioprocessing of cellulosic substrates [abstract]. Abstracts of 29th Symposium on Biotechnology for Fuels and Chemicals, Society for Industrial Microbiology, April 29-May 2, 2007, Denver, Colorado. p. 72.
On-Farm Pretreatment Technologies for Improving Enzymatic Digestibility of Cellulose and Hemicellulose Present in Perennial Grass and Corn Stover - (Abstract Only)
Digman, M.F., Shinners, K.J., Dien, B.S., Muck, R.E., Weimer, P.J. 2007. On-farm pretreatment technologies for improving enzymatic digestibility of cellulose and hemicellulose present in perennial grass and corn stover [abstract]. Abstracts of the 29th Symposium on Biotechnology for Fuels and Chemicals, April 29-May 2, 2007, Denver, Colorado. p. 147.
Sucrose Concentration Alters Fermentation Kinetics, Products and Carbon Fates in in Vitro Fermentations with Mixed Ruminal Microbes - (Peer Reviewed Journal)
Hall, M., Weimer, P.J. 2007. Sucrose concentration alters fermentation kinetics, products and carbon fates in in vitro fermentations with mixed ruminal microbes. Journal of Animal Science. 85:1467-1478.
On-Farm Pretreatment Technologies for Improving Enzymatic Digestibility of Cellulose and Hemicellulose Present in Perennial Grass - (Proceedings)
Digman, M.F., Shinners, K.J., Dien, B.S., Hatfield, R.D., Li, X., Muck, R.E., Weimer, P.J. 2007. On-farm pretreatment technologies for improving enzymatic digestibility of cellulose and hemicellulose present in perennial grass. In: Proceedings of 2007 Annual Meeting of American Society of Agricultural and Biological Engineers, June 17, 2007, Minneapolis, Minnesota. Paper No. 071021.
Single-Pass, Split-Stream Harvest of Corn Grain and Stover - (Peer Reviewed Journal)
Shinners, K.J., Adsit, G.S., Binversie, B.N., Digman, M.F., Muck, R.E., Weimer, P.J. 2007. Single-pass, split-stream harvest of corn grain and stover. Transactions of the ASABE. 50:353-363.
Dominance of Prevotella and Low Abundance of Classical Ruminal Bacterial Species in the Bovine Rumen Revealed by Relative Quantification Real-Time Pcr - (Peer Reviewed Journal)
Stevenson, D.M., Weimer, P.J. 2007. Dominance of Prevotella and low abundance of classical ruminal bacterial species in the bovine rumen revealed by relative quantification real-time PCR. Applied Microbiology and Biotechnology. 75:165-174.
Forage Energy Crops As Feedstocks for Production of Fuel Ethanol - (Abstract Only)
Cotta, M.A., Dien, B.S., Iten, L.B., Jung, H.G., Lamb, J.F., Vogel, K.P., Mitchell, R., Sarath, G., Casler, M.D., Weimer, P.J. 2006. Forage energy crops as feedstocks for production of fuel ethanol [abstract]. Biocatalysis and Bioenergy. p. 21.
Ethanol and Co-Products from Cellulosic Biomass - (Trade Journal)
Weimer, P.J. 2006. Ethanol and co-products from cellulosic biomass. International Sugar Journal. 108:30-32.
Studies of the Extracellular Glycocalyx of the Anaerobic Ruminal Bacterium Ruminococcus Albus 7. - (Peer Reviewed Journal)
Weimer, P.J., Price, N.P., Kroukamp, O., Joubert, L.M., Wolfaardt, G.M., Van Zyl, W.H. 2006. Studies of the extracellular glycocalyx of the anaerobic ruminal bacterium Ruminococcus albus 7. Applied and Environmental Microbiology. 72(12):7559-7566.
Single-Pass, Split-Stream of Corn Grain and Stover: Characteristic Performance of Three Harvester Configurations. - (Proceedings)
Shinners, K.J., Boettcher, G.C., Munk, J.C., Digman, M.F., Muck, R.E., Weimer, P.J. 2006. Single-pass, split-stream of corn grain and stover: characteristic performance of three harvester configurations. Proceedings of the Annual Meeting of the American Society of Agricultural and Biological Engineers International. Paper No. 061015. p. 1-19.
Drying, Harvesting and Storage Characteristics of Perennial Grasses As Biomass Feedstocks - (Proceedings)
Shinners, K.J., Boettcher, G.C., Muck, R.E., Weimer, P.J., Casler, M.D. 2006. Drying, harvesting and storage characteristics of perennial grasses as biomass feedstocks. Proceedings of the Annual Meeting of the American Society of Agricultural and Biological Engineers International. Paper No. 061012. p. 1-19.
Comparison of Wet and Dry Corn Stover Harvest and Storage - (Peer Reviewed Journal)
Shinners, K.J., Binversie, B.N., Muck, R.E., Weimer, P.J. 2007. Comparison of wet and dry corn stover harvest and storage. Biomass and Bioenergy. 31:211-221.
Biomass Yield and Biofuel Quality of Switchgrass Harvested in Fall Or Spring Reprint Icon - (Peer Reviewed Journal)
Adler, P.R., Sanderson, M.A., Boateng, A.A., Weimer, P.J., Jung, H.G. 2006. Biomass yield and biofuel quality of switchgrass harvested in fall or spring. Agronomy Journal. 98:1518-1525.
Fermentability of Eastern Gamagrass, Big Bluestem and Sand Bluestem Grown Across a Wide Variety of Environments - (Peer Reviewed Journal)
Weimer, P.J., Springer, T.L. 2007. Fermentability of eastern gamagrass, big bluestem and sand bluestem grown across a wide variety of environments. Bioresource Technology. 98:1615-1621.
Cellulose Hydrolysis by Clostridium Thermocellum: a Microbial Perspective - (Book / Chapter)
Lynd, L.R., Weimer, P.J., Wolfaardt, G.M., Zhang, Y.P. 2007. Cellulose hydrolysis by Clostridium thermocellum: A microbial perspective. In: Kataeva, I.A., editor. Cellulosome: Molecular Anatomy and Physiology of Proteinaceous Machines. Hauppage, NY:Nova Science Publishers. p. 95-117.
Implications of a Carbon Balance Study: Organic Acid and Protein Supplies Change with Fermentable Carbohydrate:protein Ratio - (Abstract Only)
Hall, M., Weimer, P.J. 2006. Implications of a carbon balance study: organic acid and protein supplies change with fermentable carbohydrate:protein ratio [abstract]. Journal of Dairy Science. 89:Suppl 1:404.
Development of Forage Crops As Feedstocks for Production of Fuel Ethanol - (Abstract Only)
Cotta, M.A., Dien, B.S., Jung, H.G., Vogel, K.P., Casler, M.D., Lamb, J.F., Weimer, P.J., Iten, L.B., Mitchell, R., Sarath, G. 2006. Development of forage crops as feedstocks for production of fuel ethanol [abstract]. International Conference on Bioenergy. p. I-5.
Letter to the Editor: Corrections to Biofilm Article - (Other)
Hall, M., Weimer, P.J. 2006. Ruminating on films. American Scientist. 94:100.
Interactions Between Euphorbia Esula Toxins and Bovine Ruminal Microbes - (Peer Reviewed Journal)
Kronberg, S.L., Halaweish, F.T., Hubert, M.B., Weimer, P.J. 2006. Interactions between euphorbia esula toxins and bovine ruminal microbes. Journal of Chemical Ecology. 32(1):15-28.
Use of Real Time Polymerase Chain Reaction to Determine Population Profiles of Individual Species of Lactic Acid Bacteria in Alfalfa Silage and Stored Corn Stover Reprint Icon - (Peer Reviewed Journal)
Stevenson, D., Muck, R.E., Shinners, K., Weimer, P.J. 2006. Use of real time polymerase chain reaction to determine population profiles of individual species of lactic acid bacteria in alfalfa silage and stored corn stover. Applied Microbiology and Biotechnology. 71(3):329-338.
Characteristic Performance and Yields Using a Single-Pass, Split-Stream Maize and Stover Harvester - (Proceedings)
Shinners, K.J., Adsit, G.S., Binversie, B.N., Digman, M.F., Muck, R.E., Weimer, P.J. 2005. Characteristic performance and yields using a single-pass, split-stream maize and stover harvester. Proceedings of the Annual Meeting of the American Society for Agricultural Engineering. Paper No. 056051, p.1-22.
Expression of Seventeen Genes in Clostridium Thermocellum Atcc 27405 During Fermentation of Cellulose Or Cellobiose in Continuous Culture - (Peer Reviewed Journal)
Stevenson, D., Weimer, P.J. 2005. Expression of seventeen genes in clostridium thermocellum ATCC 27405 during fermentation of cellulose or cellobiose in continuous culture. Applied and Environmental Microbiology. 71(8):4672-4678.
In Vitro Gas Production and Bacterial Biomass Estimation of Lucerne Silage Inoculated with One of Three Lactic Acid Bacterial Inoculants - (Abstract Only)
Contreras-Govea, F.E., Muck, R.E., Filya, I., Mertens, D.R., Weimer, P.J. 2005. In vitro gas production and bacterial biomass estimation for lucerne silage inoculated with one of three lactic acid bacterial inoculants. In: Park, R.S., Stronge, M.D., editors. Silage production and utilisation, XIVth International Silage Conference, July 3-6, 2005, Belfast, Northern Ireland. p. 207.
Cultivation of Mesophilic Soil Crenarchaeotes in Enrichments from Plant Roots - (Peer Reviewed Journal)
Simon, H.M., Jahn, C.E., Bergerud, L.T., Sliwinski, M.K., Weimer, P.J., Willis, D.K. Goodman, R.M. 2005. Cultivation of mesophilic soil crenarchaeotes in enrichments from plant roots. Applied and Environmental Microbiology 71(8):4751-4760.
Harvest Management of Switchgrass in Pennsylvania for Yield and Biofuel Quality - (Proceedings)
Adler, P.R., Sanderson, M.A., Boateng, A.A., Weimer, P.J. 2004. Harvest management of switchgrass in Pennsylvania for yield and biofuel quality. In: Barnes, T. G., Kiesel, L. R., editors. Proceedings of the Fourth Eastern Native Grass Symposium, October 3-6, 2004, Lexington, Kentucky. p. 87-95.
In Vitro Gas Production As a Surrogate Measurement of the Fermentability of Cellulosic Biomass - (Peer Reviewed Journal)
Weimer, P.J., Dien, B.S., Springer, T.L., Vogel, K.P. 2005. In vitro gas production as a surrogate measurement of the fermentability of cellulosic biomass. Applied Microbiology Biotechnology. 67:52-58.
Degradation of Alfalfa Stem Cell Walls by Five Rumen Bacterial Species - (Peer Reviewed Journal)
Jung, H.G., Engels, F.M., Weimer, P.J. 2004. Degradation of lucerne stem cell walls by five rumen bacterial species. Netherlands Journal of Agricultural Science. 52:11-28.
Phylogenetic Diversity and Growth Dynamics of Mesophilic Soil Crenarchaeota in Enrichment Culture Studies - (Abstract Only)
Simon, H., Jahn, C., Sliwinski, M., Weimer, P.J., Goodman, R. 2004. Phylogenetic diversity and growth dynamics of mesophilic soil crenarchaeota in enrichment culture studies[abstract]. Microbial Ecology International Symposium. p. 16.
Alfalfa: Hay, Haylage, Baleage and Other Novel Products - (Proceedings)
Martin, N.P., Mertens, D.R., Weimer, P.J. 2004. Alfalfa: hay, haylage, baleage and other novel products. In: Proceedings of the Idaho Alfalfa and Forage Conference, February 24-25, 2004, Twin Falls, Idaho. p. 9-18.
Albusin B, a Bacteriocin from the Ruminal Bacterium Ruminococcus Albus 7 That Inhibits the Growth of Ruminococcus Flavefaciens - (Peer Reviewed Journal)
Chen, J., Stevenson, D.M., Weimer, P.J. 2004. Albusin B, a bacteriocin from the ruminal bacterium Ruminococcus albus 7 that inhibits the growth of ruminococcus flavefaciens. Applied and Environmental Microbiology. 70(5):3167-3170.
Lactic Acid Bacteria Used in Inoculants for Silage As Probiotics for Ruminants - (Peer Reviewed Journal)
Weinberg, Z.G., Muck, R.E., Weimer, P.J., Chen, Y., Gamburg, M. 2004. Lactic acid bacteria used in inoculants for silage as probiotics for ruminants. Applied Biochemistry and Biotechnology. 118:1-10.
Fermentation Residues from Ruminococcus Cellulose Fermentations As Components of Wood Adhesive Formulations - (Peer Reviewed Journal)
Weimer, P.J., Conner, A.H., Lorenz, L.F. 2003. Fermentation residues from ruminococcus cellulose fermentations as components of wood adhesive formulations. Applied Microbiology and Biotechnology. 63:29-34.
Characterization of the Glycocalyx of Cellulose-Grown Ruminococcus Albus - (Abstract Only)
Weimer, P.J., Kroukamp, O., Joubert, L.M., Wolfaardt, G.M., Van Zyl, W.H. 2004. Characterization of the glycocalyx of cellulose-grown ruminococcus albus. [abstract]. 104th General Meeting of the American Society for Microbiology. B-428.
Degradation of Alfalfa Cell Wall Polysaccharides by Pure Cultures of Five Rumen Bacterial Species - (Abstract Only)
JUNG, H.G., WEIMER, P.J., ENGELS, F.M. DEGRADATION OF ALFALFA CELL WALL POLYSACCHARIDES BY PURE CULTURES OF FIVE RUMEN BACTERIAL SPECIES. CONFERENCE ON GASTROINTESTINAL FUNCTION. 2003. ABSTRACT P. 23.
Cultivation of Mesophilic Soil Crenarchaeota in Enrichments from Tomato Roots - (Abstract Only)
Jahn, C.E., Simon, H.M., Bergerud, L.T., Weimer, P.J., Goodman, R.M. 2003. Cultivation of mesophilic soil crenarchaeota in enrichments from tomato roots. [abstract]. American Society for Microbiology Meeting. p. 446.
The Survival of Silage Inoculant Lactic Acid Bacteria in Rumen Fluid - (Peer Reviewed Journal)
WEINBERG, Z.G., MUCK, R.E., WEIMER, P.J. THE SURVIVAL OF SILAGE INOCULANT LACTIC ACID BACTERIA IN RUMEN FLUID. JOURNAL OF APPLIED MICROBIOLOGY. 2003. v. 94. pp. 1066-1071.
Use of Photocatalytic Reduction to Hasten Preparation of Culture Media for Saccharolytic Clostridium Species - (Peer Reviewed Journal)
Fukushima, R.S., Weimer, P.J., Kunz, D. 2003. Use of photocatalytic reduction to hasten preparation of culture media for saccharolytic clostridium species. Brazilian Journal of Microbiology. 34:22-26.
Nutrient Yields from in Vitro Fermentations of Sucrose and Neutral Detergent Fiber by Mixed Ruminal Microorganisms - (Abstract Only)
Hall, M.B., Weimer, P.J. 2002. Nutrient yields from in vitro fermentations of sucrose and neutral detergent fiber by mixed ruminal microorganisms [abstract]. Journal of Dairy Science. p. 183.
Gas Production Kinetics and Fermentation End Product Formation from Neutral Detergent Fiber and Sucrose by Mixed Ruminal Microorganisms in Vitro - (Abstract Only)
Weimer, P.J., Hall, M.B. 2002. Gas production kinetics and fermentation end product formation from neutral detergent fiber and sucrose by mixed ruminal microorganisms in vitro [abstract]. Journal of Dairy Science. p. 361.
Isolation and Characterization of a Trichoderma Strain Capable of Fermenting Cellulose to Ethanol - (Abstract Only)
Stevenson, D.M., Weimer, P.J. 2002. Isolation and characterization of a trichoderma strain capable of fermenting cellulose to ethanol [abstract].American Society for Microbiology Annual Meeting. p. 350.
Growth of Clostridium Species in Anaerobic Media Reduced by Photocatalytic Interaction of Cysteine and Resazurin - (Abstract Only)
Fukushima, R.S., Weimer, P.J., Kunz, D.A. 2002. Growth of clostridium species in anaerobic media reduced by photocatalytic interaction of cysteine and resazurin [abstract]. American Society for Microbiology Annual Meeting. p. 260-261.
The Role of Competition and Amensalism in Determining Ruminal Fibrolytic Bacterial Populations - (Abstract Only)
Weimer, P.J. 2002. The role of competition and amensalism in determining ruminal fibrolytic bacterial populations[abstract]. Joint Grasslands Society of South Africa. p. 1.
The Microbial Cellulose Utilization Paradigm: Fundamentals and Implications for Consolidated Bioprocessing - (Abstract Only)
Lynd, L.R., Zhang, Y., Fan, Z., Desai, S., Tyurin, M., Lagrange, D., Gundllapalli, S., Otero, R.C., Van Zyl, W.H., Weimer, P.J. 2002. The microbial cellulose utilization paradigm: fundamentals and implications for consolidated bioprocessing [abstract]. Biotechnology for Fuels and Chemicals Symposium Proceedings. p. 11
Microbial Cellulose Utilization: Fundamentals and Biotechnology - (Review Article) - (03-Mar-02)
Interactions among Cellulolytic and Noncellulolytic Ruminal Microorganisms - (Book / Chapter) - (15-Dec-01)
In Vitro Fermentation of Polydextrose by Bovine Ruminal Microorganisms - (Peer Reviewed Journal) - (16-May-01)
The Ruminococcus Albus 7 Bacteriocin: An Unexpectedly Large Protein with Homology to Endoglucanases - (Abstract Only) - (15-Nov-00)
Initial Ph As a Determinant of Cellulose Digestion Rate by Mixed Ruminal Microorganisms in Vitro - (Peer Reviewed Journal) - (04-Oct-00)
Competition among Three Predominant Ruminal Cellulolytic Bacteria in the Absence Or Presence of Noncellulolytic Bacteria - (Peer Reviewed Journal) - (03-Oct-00)
Identification and Purification of a Bacteriocin from the Ruminal Cellulolytic Bacterium Ruminococcus Albus 7. - (Abstract Only) - (31-Jul-00)
Microbiology of the Dairy Animal - (Book / Chapter) - (20-Mar-00)
Fermentation of a Bacterial Cellulose/xylan Composite by Mixed Ruminal Microflora: Implications for the Role of Polysaccharide Matrix Interactionsin Plant Cell Wall Biodegradability - (Peer Reviewed Journal) - (08-Mar-00)
Comparative Growth Efficiency of Ruminal Cellulolytic Bacteria on Cellobiose Versus Cellulose in Continuous Culture - (Abstract Only) - (01-Jun-99)
Accuracy of Klason Lignin and Acid Detergent Lignin Methods As Assessed by Bomb Calorimetry - (Peer Reviewed Journal) - (02-Oct-98)
Effect of Diet on Populations of Three Species of Ruminal Cellulolytic Bacteria - (Abstract Only) - (28-Aug-98)
Effect of Diet on Populations of Three Species of Ruminal Cellulolytic Bacteria in Lactating Dairy Cows - (Peer Reviewed Journal) - (24-Aug-98)
Diet and Animal Differences Affect in Situ Digestion Kinetics - (Abstract Only) - (31-Jul-98)
Manipulating the Ruminal Fermentation: a Microbial Ecological Perspective - (Review Article) - (08-Jul-98)
Conversion of Paper Sludge into Land Application Materials and Diesel Fuel Precursors - (Abstract Only) - (05-Jun-98)
Competition among Three Strains of Ruminal Cellulolytic Bacteria in Continuous Culture - (Abstract Only) - (11-Nov-97)
Competition among Three Predominant Ruminal Cellulolytic Bacteria for Cellulose under Substrate-Unlimited and Substrate-Limited Conditions - (Peer Reviewed Journal) - (30-Oct-97)
Relationship Between Ruminal Fibrolytic Populations, Ruminal Vfa Concentra-Tions, and Milkfat in Cows Fed Diets Containing Corn Silage and Alfalfa Silage at Two Levels of Fiber - (Abstract Only) - (23-Jun-97)
Method for Measuring Gas Production Kinetics - (Abstract Only) - (21-Apr-97)
Inocula Differences Affect in Vitro Gas Production Kinetics - (Abstract Only) - (21-Apr-97)
Microbiology of the Dairy Animal - (Book / Chapter) - (24-Mar-97)
Inocula Differences Affect in Vitro Fiber Digestion Kinetics - (Abstract Only) - (25-Feb-97)
Improving Forage Fiber Digestibility - (Trade Journal) - (01-Nov-96)
Competition among Three Predominant Ruminal Cellulolytic Bacteria for Cellobiose under Substrate-Unlimited and Substrate Limited Conditions - (Peer Reviewed Journal) - (30-Oct-96)
Formation of Formate and Hydrogen, and Flux of Reducing Equivalents and Carbon in Ruminococcus Flavefaciens Fd-1 - (Peer Reviewed Journal) - (23-Oct-96)
Ruminal Cellulolytic Bacteria: Physiology, Ecology, and Beyond - (Proceedings) - (16-Sep-96)
Competition among Ruminal Cellulolytic Bacteria for Cellulose in Defined Coculture - (Abstract Only) - (23-Jul-96)
Accessibility of Ruminal Cellulolytic Bacteria to Cellulose and Its Role in Limiting Forage Fiber Digestion - (Peer Reviewed Journal) - (26-Mar-96)
Utilization of Individual Cellodextrins by Three Predominant Ruminal Cellulolytic Bacteria - (Peer Reviewed Journal) - (11-Dec-95)
Interactions among Ruminal Cellulolytic Bacteria in Cellobiose-Limited Chemostats - (Abstract Only) - (16-Nov-95)
The Anti-Cellulolytic Factor from Cicer Milkvetch Is An Arabinogalactan Protein - (Abstract Only) - (16-Nov-95)
Why don't Ruminal Bacteria Digest Cellulose Even Faster? - (Proceedings) - (28-Jun-95)
Cellodextrin Efflux by the Cellulolytic Bacterium, Fibrobacter Succinogenese, and Its Potential Role in the Growth of Nonadherent Bacteria - (Peer Reviewed Journal) - (23-Mar-95)
ARS News Articles
Last Modified: 9/21/2014