Role of Stilbenes in the Resistance of Duschekia fruticosa (Rupr.) Pouzar to the Stress Factors of Cryolithozone
V. E. Sofronova, K. A. Petrov
Abstract
Study relating to changes in the physiological state of Duschekia fruticosa (Rupr) Pouzar buds and content of stilbene growth-inhibiting substances (pinosylvin and its monomethyl ether) in the annual cycle of its development was made. It is shown that the processes of day length shortening from early to mid-August and water level decrease in cells cause the state of true dormancy for axillary buds of Duschekia fruticosa growing in Central Yakutia. Pinosylvin and its monomethyl ether are stored in buds in the course of inhibition of growth processes. During true dormancy, the content of pinosylvin monomethyl ether in young bud leaves comes to maximal values (50
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