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THE CONTENT OF NONETHERIFIED FATTY ACIDS IN THE
CELLS OF YEASTS SACCHAROMYCES CEREVISIAE AND
SCHWANNIOMYCES OCCIDENTALIS.
S.Gudz, Ya.Kolisnyk
Ivan Franko National University of L’viv
Hrushevskoho st. 4, L’viv 79005, Ukraine,
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It was established that during the growth of S.cerevisiae in
the medium with 0,1% glucose the level of nonetherified fatty acids is higher
than in the yeast Schw. Occidentalis. The content of nonetherified fatty acids
in Crabtree-positive and Crabtree-negative yeasts changes in opposite
directions to the increase of glucose concentration in the medium: it is
reduced in S.cerevisiae and increased in Schw.occidentalis. In this case the
level of C18-unsaturated fatty acids and Ñ18/C16 decreased, and the amount of
short-chain fatty acids increased in S.cerevisiae.
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Keywords: fatty acids, glucose, Crabtree effect, yeasts.
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