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407 Implementation of an Integrated Farm Management Plan to Enhance Reproductive Performance in Beef Cow-Calf Operations

Autor: Eric S. Vanzant, R. H. Burris, J. W. Lehmkuhler, B. R. Crites, L. Anderson, Darrh Bullock

Publikováno v: Journal of Animal Science. 96:195-195

The University of Kentucky Beef IRM team has developed a project-based educational program (UK IRM Farm Program) designed to instigate long-term adoption of production practices and increase productivity and profitability. Our current objective was t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::75dae3f3e7ecd2f4b8dccb9ce22717e6
https://doi.org/10.1093/jas/sky404.423

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Presence of a second mechanism for the posttranslational regulation of nitrogenase activity in Azospirillum brasilense in response to ammonium

Autor: R. H. Burris, Yaoping Zhang, Gary P. Roberts, Paul W. Ludden

Publikováno v: Journal of Bacteriology. 178:2948-2953

Although ADP-ribosylation of dinitrogenase reductase plays a significant role in the regulation of nitrogenase activity in Azospirillum brasilense, it is not the only mechanism of that regulation. The replacement of an arginine residue at position 10

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::651e7eead32b99113faef09466287ea0
https://doi.org/10.1128/jb.178.10.2948-2953.1996

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Posttranslational regulation of nitrogenase activity in Azospirillum brasilense ntrBC mutants: ammonium and anaerobic switch-off occurs through independent signal transduction pathways

Autor: R. H. Burris, Paul W. Ludden, Gary P. Roberts, Yaoping Zhang

Publikováno v: Journal of Bacteriology. 176:5780-5787

Nitrogenase activity is regulated by reversible ADP-ribosylation in response to NH4+ and anaerobic conditions in Azospirillum brasilense. The effect of mutations in ntrBC on this regulation was examined. While NH4+ addition to ntrBC mutants caused a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0dfb0793279ff7f1468c40ffd0936349
https://doi.org/10.1128/jb.176.18.5780-5787.1994

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Comparative study of the response ofAzotobacter vinelandii andAcetobacter diazotrophicus to changes in pH

Autor: R. H. Burris

Publikováno v: Protoplasma. 183:62-66

Curves were established for the pH response of respiration on eleven substrates byAzotobacter vinelandii andAcetobacter diazotrophicus. With every substrate the optimal pH forA. diazotrophicus was lower than forA. vinelandii. The optimal hydrogen ion

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f1c918fdfae860b09ddc9dc944b084c1
https://doi.org/10.1007/bf01276813

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Posttranslational regulation of nitrogenase activity by anaerobiosis and ammonium in Azospirillum brasilense

Autor: Yaoping Zhang, R. H. Burris, Gary P. Roberts, Paul W. Ludden

Publikováno v: Journal of Bacteriology. 175:6781-6788

In the microaerophilic diazotroph Azospirillum brasilense, the addition of fixed nitrogen or a shift to anaerobic conditions leads to a rapid loss of nitrogenase activity due to ADP-ribosylation of dinitrogenase reductase. The product of draT (DRAT)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f823f273852f0ed5fe26ce7070cd99e9
https://doi.org/10.1128/jb.175.21.6781-6788.1993

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