ORIGINAL ARTICLE
NITRATE REDUCTASE ACTIVITY DURING HEAT SHOCK IN WINTER
WHEAT
Klimenko S.B., Peshkova A.A., Dorofeev N.V
Siberian Institute of Plant Physiology and Biochemistry, SD RAS, Irkutsk, Russia
Phone: (3952)424659 Fax: (3952)510754
E-mail:
dorofeev@sifibr.irk.ru
Received 18 January 2006 .
Abstract - Nitrates are the basic source of nitrogen for the majority of plants. Absorption and transformation of nitrates in plants are determined by external conditions and, first of all, temperature and light intensity. The influence of the temperature increasing till +40 0 on activity of nitrate reductase was studied. It is shown, that the rise of temperature was accompanied by sharp decrease of activity nitrate reductase in leaves of winter wheat, what, apparently, occurred for the account deactivations of enzyme and due to its dissociation.
ORIGINAL ARTICLE
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E-mail:
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