Zobrazeno 1 - 10
of 185
pro vyhledávání: '"R.B. Hespell"'
Publikováno v:
Journal of Applied Microbiology. 108:357-365
Aims: The objective of this study was to examine the effect of dilution rates (Ds, varying from 0·05 to 0·42 h−1) in glucose-limited continuous culture on cell yield, cell composition, fermentation pattern and ammonia assimilation enzymes of Sele
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0eb4a5412b2e7302d3de77ae2784ae36
https://doi.org/10.1111/j.1365-2672.2009.04475.x
https://doi.org/10.1111/j.1365-2672.2009.04475.x
Autor:
R.B. Hespell, T.R. Whitehead
Publikováno v:
Journal of Dairy Science. 73:3013-3022
Hemicelluloses or xylans are major components (35%) of plant materials. For ruminant animals, about 50% of the dietary xylans are degraded, but only small amounts of xylans are degraded in the lower gut of nonruminant animals and humans. In the rumen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c4af9153a6d43ced0af40b066a35ec93
https://doi.org/10.3168/jds.s0022-0302(90)78988-6
https://doi.org/10.3168/jds.s0022-0302(90)78988-6
Autor:
L. A. Tordoff, Linda Mandelco, Thad B. Stanton, Floyd E. Dewhirst, Carl R. Woese, Bruce J. Paster, G. J. Fraser, L. Zablen, William G. Weisburg, R.B. Hespell
The 16S rRNA sequences were determined for species of Spirochaeta, Treponema, Borrelia, Leptospira, Leptonema, and Serpula, using a modified Sanger method of direct RNA sequencing. Analysis of aligned 16S rRNA sequences indicated that the spirochetes
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9d5bbc6c332110fe9a9105ae7d3ee136
https://europepmc.org/articles/PMC208357/
https://europepmc.org/articles/PMC208357/
Autor:
M. Mertens, R.B. Hespell
Publikováno v:
Archives of Microbiology. 116:151-159
The effects of various exogenous nucleic acid compounds on the viability and cell composition of Bdellovibrio bacteriovorus starved in buffer were measured. In decreasing order of effectiveness, these compounds were found to decrease the rate of loss
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1ea183d78288fab211e63c9fd5cae536
https://doi.org/10.1007/bf00406030
https://doi.org/10.1007/bf00406030
Autor:
R.B. Hespell, C. Jeffrey Smith
Publikováno v:
Journal of Dairy Science. 66:1536-1546
Over the last decade, developments in recombinant deoxyribonucleic acid techniques and molecular biology have revolutionized bacterial genetics, creating vast, new potential uses of bacteria (as well as animal and plant cells) that were not even cons
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7ea8df5f68d644633551dfe083bc0dd5
https://doi.org/10.3168/jds.s0022-0302(83)81970-5
https://doi.org/10.3168/jds.s0022-0302(83)81970-5
Autor:
R.B. Hespell, Ronald W. Mink
Publikováno v:
Current Microbiology. 5:51-56
Batch- and continuous-cultured cell suspensions of the anaerobic ruminal bacteriumMegasphaera elsdenii strain T-81 were subjected to total nutrient starvation, during which time changes in cell viability, cell composition, and endogenous fermentation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::df7bd6c30caba6bf604032d11c00468e
https://doi.org/10.1007/bf01566598
https://doi.org/10.1007/bf01566598
Autor:
R.B. Hespell, Jane A.Z. Leedle
Publikováno v:
Journal of Dairy Science. 67:808-816
Short in vitro incubations of mixed ruminal bacteria with feedstuff materials were conducted. In each series of experiments, the rumen bacterial population was divided into equal portions. One portion was washed anaerobically by centrifugation in a m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4e63fd21e2a3868132bb21e4285b52db
https://doi.org/10.3168/jds.s0022-0302(84)81371-5
https://doi.org/10.3168/jds.s0022-0302(84)81371-5
Publikováno v:
Journal of Animal Science. 62:789-803
In a diurnal study, feedstuff and digesta polysaccharides, ruminal bacterial carbohydrate-fermenting groups, and selected ruminal fluid characteristics (ruminal pH, ammonia and volatile fatty acids) were measured in ruminal-cannulated Holstein steers
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f7eb31aaff3018522103a3d006f5c075
https://doi.org/10.2527/jas1986.623789x
https://doi.org/10.2527/jas1986.623789x
Autor:
R.B. Hespell, Jane A.Z. Leedle
Publikováno v:
Journal of Dairy Science. 66:1003-1014
A series of brief in vitro incubations with mixed rumen bacterial populations was conducted. Aerobic, aerobic plus cysteine-sulfide, and anaerobic plus cysteine-sulfide treatments using either McDougall's or Starvation-survival buffer were compared f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::72ee1513015b986b4f94b69a6bf6784c
https://doi.org/10.3168/jds.s0022-0302(83)81895-5
https://doi.org/10.3168/jds.s0022-0302(83)81895-5
Autor:
R.B. Hespell, Richard W. Lenz
Publikováno v:
Archives of Microbiology. 119:245-248
Incubation in buffer of Bdellovibrio bacteriovorus 109J, B. stolpii UKi2, or B. starrii A3.12 with washed eucaryotic animal cells (mouse liver, hamster kidney, or bovine mammary gland) resulted in neither attachment nor growth of the bdellovibrios. W
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3dd4b229b1316c7041d3e26a01f83fcc
https://doi.org/10.1007/bf00405402
https://doi.org/10.1007/bf00405402