Search Results - "Janssen, P.H."

Rumen microbial (meta)genomics and its application to ruminant production by Morgavi, D. P., Kelly, W. J., Janssen, P. H., Attwood, G. T.

“…Meat and milk produced by ruminants are important agricultural products and are major sources of protein for humans. Ruminant production is of considerable…”
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Nitrogen metabolism and rumen microbial enumeration in lactating cows with divergent residual feed intake fed high-digestibility pasture by Rius, A G, Kittelmann, S, Macdonald, K A, Waghorn, G C, Janssen, P H, Sikkema, E

“…Dairy cattle selected for negative residual feed intake (n-RFI; efficient) should maintain production while reducing dry matter intake over a lactation because…”
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Temporal fermentation and microbial community dynamics in rumens of sheep grazing a ryegrass-based pasture offered either in the morning or in the afternoon by Vibart, R. E., Ganesh, S., Kirk, M. R., Kittelmann, S., Leahy, S. C., Janssen, P. H., Pacheco, D.

“…Eight ruminally-fistulated wethers were used to examine the temporal effects of afternoon (PM; 1600h) v. morning (AM; 0800 h) allocation of fresh spring…”
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Progress in the development of vaccines against rumen methanogens by Wedlock, D. N, Janssen, P. H., Leahy, S. C., Shu, D., Buddle, B. M.

“…Vaccination against rumen methanogens offers a practical approach to reduce methane emissions in livestock, particularly ruminants grazing on pasture. Although…”
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Efficiency of hydrogen utilization during unitrophic and mixotrophic growth of Acetobacterium woodii on hydrogen and lactate in the chemostat by Peters, V., Janssen, P.H., Conrad, R.

“…Abstract Acetobacterium woodii is able to grow chemolithoautotrophically on H2 plus CO2 or heterotrophically on lactate by forming acetate as sole product…”
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La (méta)génomique des microorganismes du rumen et ses applications à la production des ruminants by D. MORGAVI, W.J. KELLY, P.H. JANSSEN, G.T. ATTWOOD

“…La viande et le lait produits par les ruminants sont d'importants produits agricoles qui représentent une source importante de protéines pour les humains. La…”
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Responses of methane production and fermentation pathways to the increased dissolved hydrogen concentration generated by eight substrates in in vitro ruminal cultures by Wang, M., Sun, X.Z., Janssen, P.H., Tang, S.X., Tan, Z.L.

“…•A simple apparatus is valid to measure dissolved H2 concentration in liquid phase.•Higher H2 production leads to higher methane production.•Dissolved H2 and…”
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Modelling thermodynamic feedback on the metabolism of hydrogenotrophic methanogens by Lynch, T.A., Wang, Y., van Brunt, B., Pacheco, D., Janssen, P.H.

“…•Model of anaerobic microbial growth incorporating thermodynamic constraints.•Concentrations of substrates and products, and ATP yield impact thermodynamics…”
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Laboratory cultivation of widespread and previously uncultured soil bacteria by Joseph, S.J, Hugenholtz, P, Sangwan, P, Osborne, C.A, Janssen, P.H

“…Most soil bacteria belong to family-level phylogenetic groups with few or no known cultivated representatives. We cultured a collection of 350 isolates from…”
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Excreta emissions in progeny of low and high enteric methane yield selection line sheep fed pasture of different qualities by Jonker, A., MacLean, S., Woyimo Woju, C., Garcia Rendon Calzada, M., Yu, W., Molano, G., Hickey, S., Pinares-Patiño, C.S., McEwan, J.C., Janssen, P.H., Sandoval, E., Lewis, S., Rowe, S.

“…•Excreta emissions were estimated for genetically low and high methane yield sheep.•There were only minor differences in excreta output between low and high…”
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A mathematical model to describe in vitro kinetics of H2 gas accumulation by Wang, M., Janssen, P.H., Sun, X.Z., Muetzel, S., Tavendale, M., Tan, Z.L., Pacheco, D.

“…Hydrogen (H2) is produced in the rumen during the microbial fermentation of dietary carbohydrates, and is consumed as an energy source by H2-using microbes,…”
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Chthoniobacter flavus gen. nov., sp. nov., the first pure-culture representative of subdivision two, Spartobacteria classis nov., of the phylum Verrucomicrobia by Sangwan, P, Chen, X, Hugenholtz, P, Janssen, P.H

“…The phylum Verrucomicrobia is increasingly recognized as an environmentally significant group of bacteria, particularly in soil habitats. At least six…”
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Energetics and kinetics of lactate fermentation to acetate and propionate via methylmalonyl-CoA or acrylyl-CoA by Seeliger, Sabine, Janssen, Peter H., Schink, Bernhard

“…Fermentation balances and growth yields were determined with various bacteria fermenting lactate to acetate plus propionate either via methylmalonyl-CoA or via…”
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Liquid serial dilution is inferior to solid media for isolation of cultures representative of the phylum-level diversity of soil bacteria by Schoenborn, L, Yates, P.S, Grinton, B.E, Hugenholtz, P, Janssen, P.H

“…Representatives of only four well-characterized bacterial phyla were isolated from a pasture soil by using liquid serial dilution culture. In contrast, members…”
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Comparative phylogenetic assignment of environmental sequences of genes encoding 16S or rRNA and numerically abundant culturable bacteria from an anoxic rice paddy soil by Hengstmann, U, Chin, K.J, Janssen, P.H, Liesack, W

“…We used both cultivation and direct recovery of bacterial 16S rRNA gene (rDNA) sequences to investigate the structure of the bacterial community in anoxic rice…”
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Propanol as an end product of threonine fermentation by JANSSEN, Peter H

“…Clostridium sp. strain 17cr1 was able to ferment L-threonine to propionate and propanol. Electrons arising in the oxidation of 2-oxobutyrate to propionyl-CoA…”
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Characterization and identification of numerically abundant culturable bacteria from the anoxic bulk soil of rice paddy microcosms by Chin, K.J, Hahn, D, Hengstmann, U, Liesack, W, Janssen, P.H

“…Most-probable-number (liquid serial dilution culture) counts were obtained for polysaccharolytic and saccharolytic fermenting bacteria in the anoxic bulk soil…”
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Taxonomy of Australian clinical isolates of the genus Photorhabdus and proposal of Photorhabdus asymbiotica subsp. asymbiotica subsp. nov. and P. asymbiotica subsp. australis subsp. nov by Akhurst, R. J, Boemare, N. E, Janssen, P. H, Peel, M. M, Alfredson, D. A, Beard, C. E

“…1 Division of Entomology, Commonwealth Scientific and Industrial Research Organization, Canberra ACT 2601, Australia 2 Ecologie microbienne des Insectes et…”
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Efficiency of hydrogen utilization during unitrophic and mixotrophic growth of Acetobacterium woodii on hydrogen and lactate in the chemostat by Peters, V, Janssen, P.H, Conrad, R

“…Acetobacterium woodii is able to grow chemolithoautotrophically on H 2 plus CO 2 or heterotrophically on lactate by forming acetate as sole product…”
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Disproportionation of inorganic sulfur compounds by the sulfate-reducing bacterium Desulfocapsa thiozymogenes gen. nov., sp. nov by JANSSEN, P. H, SCHUHMANN, A, BAK, F, LIESACK, W

“…A new strictly anaerobic, gram-negative bacterium was isolated from the sediment of a freshwater lake after enrichment with thiosulfate as the energy source…”
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