INTRACELLULAR PH OF ACID-TOLERANT RUMINAL BACTERIA

被引：55

作者：

RUSSELL, JB ^{[1
]}

机构：

[1] CORNELL UNIV,MICROBIOL SECT,ITHACA,NY 14853

来源：

APPLIED AND ENVIRONMENTAL MICROBIOLOGY | 1991年 / 57卷 / 11期

关键词：

D O I：

10.1128/AEM.57.11.3383-3384.1991

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

Acid-tolerant ruminal bacteria (Bacteroides ruminicola B14, Selenomonas ruminantium HD4, Streptococcus bovis JB1, Megasphaera elsdenii B159, and strain F) allowed their intracellular pH to decline as a function of extracellular pH and did not generate a large pH gradient across the cell membrane until the extracellular pH was low (< 5.2). This decline in intracellular pH prevented an accumulation of volatile fatty acid anions inside the cells.

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页码：3383 / 3384

页数：2

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