Abstract
Consider the plight of an extracellular enzyme, a permease, or an exported metabolite. Unprotected by the pH homeostatic mechanism of its maker, it must function or fail to do so in an environment ravaged by extremes of pH. An organism which can grow only over a narrow pH range need only export molecules able to function over a similarly narrow pH range. An organism which can grow over a wide pH range can greatly benefit from controlling syntheses of exported molecules so that they are synthesized only at appropriate ambient pH. No well-adapted organism would secrete an acid phosphatase into an alkaline environment.
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© 1996 Springer-Verlag Berlin Heidelberg
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Arst, H.N. (1996). Regulation of Gene Expression by pH. In: Brambl, R., Marzluf, G.A. (eds) Biochemistry and Molecular Biology. The Mycota, vol 3. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-10367-8_10
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DOI: https://doi.org/10.1007/978-3-662-10367-8_10
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