Butyrivibrio hungatei MB2003 Competes Effectively for Soluble Sugars Released by Butyrivibrio proteoclasticus B316^T during Growth on Xylan or Pectin.

ABSTRACT: Rumen bacterial species belonging to the genus Butyrivibrio are important degraders of plant polysaccharides, particularly hemicelluloses (arabinoxylans) and pectin. Currently, four species are recognized; they have very similar substrate utilization profiles, but little is known about how these microorganisms are able to coexist in the rumen. To investigate this question, Butyrivibrio hungatei MB2003 and Butyrivibrio proteoclasticus B316^T were grown alone or in coculture on xylan or pectin, and their growth, release of sugars, fermentation end products, and transcriptomes were examined. In monocultures, B316^T was able to grow well on xylan and pectin, while MB2003 was unable to utilize either of these insoluble substrates to support significant g

SUBMITTER: Palevich N 

PROVIDER: S-EPMC6344614 | biostudies-literature | 2019 Feb

REPOSITORIES: biostudies-literature