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PMID: 6643393 Published · ppublish English Journal Article Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S.

Cytoplasmic pH homeostasis in an acidophilic bacterium, Thiobacillus acidophilus.

Journal of bacteriology ·Vol. 156 ·No. 3 ·1983-12-00 ·Pages 1352-5

Zychlinsky E, Matin A

Abstract

The cytoplasmic buffering capacity of Thiobacillus acidophilus (along with membrane properties) is responsible for the cytoplasmic pH homeostasis in metabolically compromised cells. When a large influx of H+ occurs, the cytoplasmic buffering capacity prevents drastic changes in pH; in addition, this influx, by increasing the positive membrane potential, eventually leads to a cessation of further H+ influx.

MeSH Terms
Buffers Cytoplasm/metabolism Homeostasis Hydrogen/metabolism Hydrogen-Ion Concentration Membrane Potentials Thiobacillus/metabolism
Chemicals
Buffers Hydrogen
Authors & Affiliations
2 authors, click to expand affiliations / ORCID
Zychlinsky E
Matin A
References (8)
8 references, click to expand
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  4. Protein measurement with the Folin phenol reagent.
    J Biol Chem. 1951 Nov;193(1):265-75 PMID: 14907713
  5. Proton motive force and the physiological basis of delta pH maintenance in thiobacillus acidophilus.
    J Bacteriol. 1982 May;150(2):582-91 PMID: 6279562
  6. Control of intracellular pH. Predominant role of oxidative metabolism, not proton transport, in the eukaryotic microorganism Neurospora.
    J Gen Physiol. 1982 Sep;80(3):377-402 PMID: 6292329
  7. Effect of starvation on cytoplasmic pH, proton motive force, and viability of an acidophilic bacterium, Thiobacillus acidophilus.
    J Bacteriol. 1983 Jan;153(1):371-4 PMID: 6294053
  8. pH homeostasis in bacteria.
    Biochim Biophys Acta. 1981 Dec;650(2-3):151-66 PMID: 6277371
Article Info
Journal
Journal of bacteriology
Abbr.
J Bacteriol
ISSN
0021-9193
DOI
10.1128/jb.156.3.1352-1355.1983
Published
1983-12-00
Pages
1352-5
Language
English
Region
United States
NLM ID
2985120R
PMCID
PMC217988
Subset
IM
External Links
PubMed source DOI: 10.1128/jb.156.3.1352-1355.1983 PMC Full Text View journal details
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