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ENDOGENOUS REGULATION OF PHOTOSYNTHESIS OF COTTON LEAVES IN ROOT HYPOXIA
Original title
ЭНДОГЕННАЯ РЕГУЛЯЦИЯ ФОТОСИНТЕЗА ЛИСТЬЕВ ХЛОПЧАТНИКА ПРИ КОРНЕВОЙ ГИПОКСИИ
Authors
I.S. Kasparova1, Z.B. Davlyatnazarova1, K. Aliev1, B.Kh. Rasulov2
Contact information
1Institute of botany, plant physiology and genetics of Academy Science of the Republic of Tajikistan, Dushanbe, Tajikistan, Этот адрес электронной почты защищён от спам-ботов. У вас должен быть включен JavaScript для просмотра.
2Institute of Molecular Biology, University of Tartu, Tartu, Estonia
Pages
402-405
DOI
10.31255/978-5-94797-319-8-402-405
Abstract
It is shown that the regulation of the rate of carbon dioxide gas exchange of cotton leaves during flooding of the root zone was due to a change in the accepting capacity of the bush. In this case, the initiating role in the flooding of the root system belongs to the growth processes. The observed changes in the rate of visible photosynthesis were accompanied by a change in the conductance of the stomata by the CO2 flux. The main reason for the decrease in the rate of photosynthesis is a decrease in the efficiency of carboxylation under the conditions of root anaerobiosis due to a change in the concentration of active carboxylase centers associated with RBP.