УДК 582.663:581.13:58.056
FEATURES OF METABOLIC ADAPTABILITY IN AMARANTH PLANTS IN THE CONDITIONS OF HYPOBARIC HYPOXIA
S.A. Voitsekhovskaya, N.V. Sotnikova, G.S. Verkhoturova, T.A. Zaitseva, G.V. Borovikova, T.P.Astafurova
On 24-day seedlings of two species of amaranth: Amaranthus hypochondriacus L. and A. tricolor, the authors shown, that the Valentina variety in the conditions of 16-hour experimental hypobaric hypoxia in assimilating tissues activates the oxidative pentose-phosphate pathway and reduces amaranthine content, having antioxidant properties. At the same time the Kizlyarets amaranth variety during deficiency in oxygen deeply raising the activity of alcohol dehydrogenase processing an ethanol. The different mechanisms of biochemical adaptability to deficiency in oxygen in plants of Amaranthus genus are discussed.
Key words: Amaranthus, hypobaric hypoxia, respiratory metabolism, adaptation.
Research Institute of Biology and Biophysics of Thomsk State University, Thomsk 634050, Russia, e-mail: euvit@bk.ru |
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