Abstract
The composition of the membrane lipids and cytosol soluble carbohydrates under three kinds of unfavorable impacts (osmotic, oxidative, and cold) was studied. Changes in the composition of the membrane lipids, specifically, increasing content of phosphatidic acids and decreasing levels of phosphatidylcholines and phosphatidylethanolamines, were the general response to the impacts. The degree of fatty acid unsaturation increased in all dominant phospholipids under osmotic shock, only in cardiolipins and phosphatidic acids under oxidative stress, and only in phosphatidylcholines under cold shock. Increased sterol content was observed only under cold and osmotic treatments. No general pattern was revealed in the composition of cytosol carbohydrates in response to stresses. Oxidative stress had almost no effect on the carbohydrate composition, while osmotic and cold treatments resulted in increased glycerol content and decreased total carbohydrate content. The mechanisms of fungal response to various stress impacts are discussed.
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Original Russian Text © E.A. Ianutsevich, O.A. Danilova, N.V. Groza, V.M. Tereshina, 2016, published in Mikrobiologiya, 2016, Vol. 85, No. 3, pp. 283–292.
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Ianutsevich, E.A., Danilova, O.A., Groza, N.V. et al. Membrane lipids and cytosol carbohydrates in Aspergillus niger under osmotic, oxidative, and cold impact. Microbiology 85, 302–310 (2016). https://doi.org/10.1134/S0026261716030152
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DOI: https://doi.org/10.1134/S0026261716030152