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
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- 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]
- 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]
- 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]
- 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]
- 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]
- 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]
- 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]
- 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]