Сортовые различия стресс-реакции растений ячменя, вызванной возбудителем корневой гнили из рода Fusarium

Abstract

Peculiarities of stress in barley Hordeum vulgare L. induced by root rot Fusarium sp. were specify for Belarusian varieties Gonar, Dzyvosny and Staly. Stress reaction was assessed by change in length of plants roots, as well by changes in peroxidase activity, lipid peroxidation level and reduced glutathione content in root cells. This is evidenced not only morphometric, and biochemical parameters studied. It was demonstrate that Staly’s plants possess the lower sensitivity to pathogen impact. Their antioxidant system characterized by the absence of peroxidase enzymes induction, higher reduced glutathione and lower lipid peroxidation levels in cells in compare with Gonar’s and Dzivosny’s plants. Mentioned above peculiarities of barley varieties response can be use for artificial selection of plant forms resistant to biotic stress agents. Established features of response of plants can be used for the selection of forms resistant to biotic stress factors.