Osmoregulation in Yeast
For the purposes of this article, osmoregulation will be defined as the maintenance of approximately constant cell volume and turgor pressure in the face of changing water potential. Microorganisms must accomodate the entire range of environmental water potential whereas the range is narrowed for the cells of healthy higher plants and animals by regulatory systems associated with their more complex anatomy and physiology. For this reason, cellular responses to extreme environmental conditions are best seen in microorganisms and, indeed, microorganisms are the only inhabitants of certain types of extreme environments such as hypersaline lakes.
KeywordsWater Potential Turgor Pressure Glycerol Production Triose Phosphate Dihydroxyacetone Phosphate
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