Utilization of individual cellodextrins by three predominant ruminal cellulolytic bacteria.
نویسندگان
چکیده
Growth of the ruminal bacteria Fibrobacter succinogenes S85, Ruminococcus flavefaciens FD-1, and R. albus 7 followed Monod kinetics with respect to concentrations of individual pure cellodextrins (cellobiose, cellotriose, cellotetraose, cellopentaose, and cellohexaose). Under the conditions tested, R. flavefaciens FD-1 possesses the greatest capacity to compete for low concentrations of these cellodextrins.
منابع مشابه
Competition among three predominant ruminal cellulolytic bacteria in the absence or presence of non-cellulolytic bacteria.
Competition among three species of ruminal cellulolytic bacteria - Fibrobacter succinogenes S85, Ruminococcus flavefaciens FD-1 and Ruminococcus albus 7 - was studied in the presence or absence of the non-cellulolytic ruminal bacteria Selenomonas ruminantium or Streptococcus bovis. Co-cultures were grown under either batch or continuous conditions and populations were estimated using species-sp...
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When glucose or cellobiose was provided as an energy source for Fibrobacter succinogenes, there was a transient accumulation (as much as 0.4 mM hexose equivalent) of cellobiose or cellotriose, respectively, in the growth medium. Nongrowing cell suspensions converted cellobiose to cellotriose and longer-chain cellodextrins, and in this case the total cellodextrin concentration was as much as 20 ...
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عنوان ژورنال:
- Applied and environmental microbiology
دوره 62 3 شماره
صفحات -
تاریخ انتشار 1996