INFLUENCE OF ROOT HYPOXIA ON HEIGHT, DEVELOPMENT AND METABOLISM OF PHOTOSYNTHETIC LEAVES AMARANTHUS TRICOLOR L.
It was studied the features of development of Amaranthus tricolor L. sorts of Valentin in the conditions of root hypoxia and possible ways of biochemical adaptation of assimilatory vehicle. As far as the increase of term of submergence there was braking of processes of height and development, maintenance of proteins diminished in leaves and, simultaneously, the amount of low-molecular antioxidants of amaranthin and ascorbic acid changed. Found out activating of enzymes of cycle of tricarboxylic acids (malate dehydrogenase), glycolysis and fermentation (alcohol dehydrogenase) and oxidizing pentose phosphate cycle (glucose-6-phosphate dehydrogenase) in leaves both after short-term and the protracted anaerobiosis. It was demonstrated, that adaptation to the root anaerobiosis connect with changes of activity of enzymes of different respiratory tracts and work of the antioxidant systems in photosynthetic leaves.
Keywords: Amaranthus tricolor, hypoxia, adaptation, respiratory metabolism, enzyme activity, antioxidants, amaranthin, ascorbic acid
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Issue: 3, 2010
Series of issue: Issue 3
Rubric: Peat Studies
Pages: 101 — 107
Downloads: 986