In:
Journal of Bacteriology, American Society for Microbiology, Vol. 102, No. 2 ( 1970-05), p. 462-466
Abstract:
Addition of 10 −3 m pyruvic acid to cultures of Thiobacillus thiooxidans , at p H 2.3, results in its rapid intracellular accumulation and in the cessation of sulfur oxidation, CO 2 fixation, and oxygen consumption; at p H 7.0, pyruvate neither inhibits oxygen uptake nor accumulates appreciably intracellularly. Pyruvate does not affect CO 2 fixation in cell-free extracts. The data suggest that the cells of T. thiooxidans are passively permeable to pyruvic acid at low p H. Thus entry of pyruvic acid causes accumulation of pyruvate with a concomitant decrease in intracellular p H.
Type of Medium:
Online Resource
ISSN:
0021-9193
,
1098-5530
DOI:
10.1128/jb.102.2.462-466.1970
Language:
English
Publisher:
American Society for Microbiology
Publication Date:
1970
detail.hit.zdb_id:
1481988-0
SSG:
12
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