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PMID: 16345311 Published · ppublish English Journal Article

Substrate preferences in rumen bacteria: evidence of catabolite regulatory mechanisms.

Applied and environmental microbiology ·Vol. 36 ·No. 2 ·1978-08-00 ·Pages 319-29

Russell JB, Baldwin RL

Abstract

Five species of rumen bacteria with overlapping substrate fermentative capabilities were tested for substrate preferences and evidence of catabolite regulatory mechanisms. All five bacteria showed evidence of some type of catabolite regulatory mechanism. In the six-substrate test system that was used, utilization of every substrate was inhibited by another substrate in at least one of the bacteria. Inhibited versus noninhibited substrate data suggest that the five bacteria have different strategies of substrate utilization and thus occupy separate niches in the rumen. The significance of these observations to understanding the rumen ecosystem is discussed.

Authors & Affiliations
2 authors, click to expand affiliations / ORCID
Russell J B
Department of Animal Science, University of California, Davis, California 95616.
Baldwin R L
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Article Info
Journal
Applied and environmental microbiology
Abbr.
Appl Environ Microbiol
ISSN
0099-2240
DOI
10.1128/aem.36.2.319-329.1978
Published
1978-08-00
Pages
319-29
Language
English
Region
United States
NLM ID
7605801
PMCID
PMC291221
External Links
PubMed source DOI: 10.1128/aem.36.2.319-329.1978 PMC Full Text View journal details
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