A sodium requirement for growth, solute transport, and pH homeostasis in Bacillus firmus RAB.
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چکیده
منابع مشابه
A sodium requirement for growth, solute transport, and pH homeostasis in Bacillus firmus RAB.
Activity of a Na+/H+ antiporter has been suggested to be critically involved in pH homeostasis in obligately alkalophilic bacteria (Krulwich, K. A., Mandel, K. G., Bornstein, R. F., and Guffanti, A. A. (1979) Biochem. Biophys. Res. Commun. 91, 58-62) and in Escherichia coli (Zilberstein, D., Padan, E., and Schuldiner, S. (1980) FEBS Lett. 116, 177-180). A concern with respect to these proposals...
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Purification and characterization of the cytochrome oxidase from alkalophilic Bacillus firmus RAB.
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The bioenergetic properties and viability of obligately alkalophilic Bacillus firmus RAB have been examined upon incubation in alkaline and neutral buffers in the presence or absence of added Na+. At pH 10.5, cells incubated in the absence of Na+ exhibited an immediate rise in cytoplasmic pH from less than 9.5 to 10.5, and they lost viability very rapidly. Viability experiments in the presence ...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1982
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(19)68120-2