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Simulation of a high- and low-affinity sugar-uptake system inChlorellaby a pH-dependent change in the Kmof the uptake system

✍ Scribed by E. Komor; W. Tanner

Book ID
104749047
Publisher
Springer-Verlag
Year
1975
Tongue
English
Weight
239 KB
Volume
123
Category
Article
ISSN
0032-0935

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✦ Synopsis

Chlorella vulgaris cells take up hexoses by a proton cotransport system. Depending of the pH of the medium either a high- or a low-affinity uptake system or both these systems can be observed. In the latter case the cells exhibit distinct biphasic uptake kinetics.

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✍ N. A. Walker; R. J. Reid; F. A. Smith πŸ“‚ Article πŸ“… 1993 πŸ› Springer 🌐 English βš– 722 KB

We have previously investigated the electrogenic influx of urea in Chara, and the urea- and sodium-dependent membrane current. We have shown that there is a sodium-stimulated component of urea influx and a urea-stimulated component of sodium influx, and that these are of the same size. We conclude t