[Effect of the physiological-biochemical characteristics variability on a radiosensitiveness of the Atriplex patula L. and Artemisia vulgaris L. ecoforms].

On the example of the physiological and the cytology-biochemical characteristics variability of an Atriplex patula L. and Artemisia vulgaris L. sprouts which parental plants were generated in various environmental conditions (South Yakutia, the Central Yakutia, Middle Ural), was shown, that radiostability depends not only on set protective antioxidant, on the DNA-reparation systems and on the vulnerability degree of a functioning genome, but also on the phenotypic diversifications of a population which in turn, in the certain degree, are consequence of previous selection of a population to all set of ecological stresses-factors of the environment.

[The effect of extracts from Rhododendron aureum Georgi and Artemisia yacutica drod. on wheat root meristem cells division]. / Vliianie ékstraktov Rododendrona zolotistogo (Rhododendron aureum Georgi) i Polyni iakutsko'i (Artemisia yacutica drod.) na delenie kletok kornevo'i meristemy prorostkov pshenitsy.

A study was made of the action of extracts from two Yakutian plant species in the course of mitosis in the rootlet meristemic tissue in germs of the local variety of common wheat. The examined extracts contain a large amount of biologically active substances and colchicine-like compounds causing (at certain dilutions) the increase in mitotic activity of the meristemic tissue in wheat germs, with simultaneous augmentation of the number of abnormal cells in mitosis, which well compares with the action of 0.01% colchicine solution.