Rapid changes of heat and desiccation tolerance correlated with changes of trehalose content in Saccharomyces cerevisiae cells subjected to temperature shifts.
نویسندگان
چکیده
The trehalose content of exponentially growing Saccharomyces cerevisiae cells rapidly increased in response to a temperature shift from 27 to 40 degrees C and decreased again when the temperature was shifted back from 40 to 27 degrees C. These changes were closely correlated with increases and decreases in the thermotolerance and desiccation tolerance of the cells. Our results support the hypothesis that trehalose functions as a protectant against heat and desiccation.
منابع مشابه
Increasing intracellular trehalose is sufficient to confer desiccation tolerance to Saccharomyces cerevisiae.
Diverse organisms capable of surviving desiccation, termed anhydrobiotes, include species from bacteria, yeast, plants, and invertebrates. However, most organisms are sensitive to desiccation, likely due to an assortment of different stresses such as protein misfolding and aggregation, hyperosmotic stress, membrane fracturing, and changes in cell volume and shape leading to an overcrowded cytop...
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عنوان ژورنال:
- FEBS letters
دوره 220 1 شماره
صفحات -
تاریخ انتشار 1987