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. 1983 Dec;156(3):1352–1355. doi: 10.1128/jb.156.3.1352-1355.1983

Cytoplasmic pH homeostasis in an acidophilic bacterium, Thiobacillus acidophilus.

E Zychlinsky, A Matin
PMCID: PMC217988  PMID: 6643393

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.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. Hsung J. C., Haug A. Membrane potential of Thermoplasma acidophila. FEBS Lett. 1977 Jan 15;73(1):47–50. doi: 10.1016/0014-5793(77)80011-2. [DOI] [PubMed] [Google Scholar]
  2. LOWRY O. H., ROSEBROUGH N. J., FARR A. L., RANDALL R. J. Protein measurement with the Folin phenol reagent. J Biol Chem. 1951 Nov;193(1):265–275. [PubMed] [Google Scholar]
  3. Maloney P. C. Membrane H+ conductance of Streptococcus lactis. J Bacteriol. 1979 Oct;140(1):197–205. doi: 10.1128/jb.140.1.197-205.1979. [DOI] [PMC free article] [PubMed] [Google Scholar]
  4. Matin A., Wilson B., Zychlinsky E., Matin M. Proton motive force and the physiological basis of delta pH maintenance in thiobacillus acidophilus. J Bacteriol. 1982 May;150(2):582–591. doi: 10.1128/jb.150.2.582-591.1982. [DOI] [PMC free article] [PubMed] [Google Scholar]
  5. Padan E., Zilberstein D., Schuldiner S. pH homeostasis in bacteria. Biochim Biophys Acta. 1981 Dec;650(2-3):151–166. doi: 10.1016/0304-4157(81)90004-6. [DOI] [PubMed] [Google Scholar]
  6. Sanders D., Slayman C. L. 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. doi: 10.1085/jgp.80.3.377. [DOI] [PMC free article] [PubMed] [Google Scholar]
  7. Scholes P., Mitchell P. Acid-base titration across the plasma membrane of Micrococcus denitrificans: factors affecting the effective proton conductance and the respiratory rate. J Bioenerg. 1970 Jun;1(1):61–72. doi: 10.1007/BF01516089. [DOI] [PubMed] [Google Scholar]
  8. Zychlinsky E., Matin A. Effect of starvation on cytoplasmic pH, proton motive force, and viability of an acidophilic bacterium, Thiobacillus acidophilus. J Bacteriol. 1983 Jan;153(1):371–374. doi: 10.1128/jb.153.1.371-374.1983. [DOI] [PMC free article] [PubMed] [Google Scholar]

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