Pathway of propionate formation in Bacteroides ruminicola.
نویسندگان
چکیده
منابع مشابه
Ruminal Bacterium Prevotella ruminicola 23t
When PrevoteUa ruminicola 23 was grown in a defined medium containing a vitamin mixture, significant amounts of propionate were formed. Succinate and acetate were the major fermentation acids produced when vitamins were omitted, and further experiments demonstrated that propionate formation was dependent on vitamin B12. When the organism was grown in continuous culture at dilution rates of less...
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The cell walls of three species of rumen bacteria (Bacteroides ruminicola, Bacteroides succinogenes, and Megasphaera elsdenii) were studied by a variety of morphological methods. Although all the cells studied were gram-negative and had typical cytoplasmic membranes and outer membranes, great variation was observed in the thickness of their peptidoglycan layers. Megasphaera elsdenii evidenced a...
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A cloned xylanase gene from the ruminal bacterium Bacteroides ruminicola 23 was transferred by conjugation into the colonic species Bacteroides fragilis and Bacteroides uniformis by using the Escherichia coli-Bacteroides shuttle vector pVAL-1. The cloned gene was expressed in both species, and xylanase specific activity in crude extracts was found to be at least 1400-fold greater than that foun...
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ورودعنوان ژورنال:
- Journal of bacteriology
دوره 93 1 شماره
صفحات -
تاریخ انتشار 1967