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Information × Registration Number 0221U101932, 0116U000675 , R & D reports Title To research cereals adaptive reactions formation mechanisms, estimation and selection characteristics of cereal crops genotypes with increased adaptive properties popup.stage_title Head Molodchenkova Olga O, Доктор біологічних наук Registration Date 26-01-2021 Organization Selection-Genetic Institute - National Center of Seed and Selection Studies of Ukrainian Academy of Agrarian Sciences popup.description2 Peculiarities of changes in activity and component composition of PR-proteins, soluble lectins, lipid and redox signaling components in wheat plants at the fungal and viral infection, influence of signaling molecules due to resistance for diseases and in maize plants under conditions of water deficiency and hyperthermia were investigated. The different character of changes in the activity and isoenzyme composition of chitinase and β-1,3-glucanase in wheat seedlings at the infection by pathogens, the action of salicilic (SA) and jasmonic (JA) acids depending on the resistance of wheat varieties to diseases was established. Changes in the content of hydrogen peroxide, lipid peroxidation products and the activity of ROS-scavenger enzymes , catalase, peroxidase, glutathione peroxidase, ascorbate peroxidase), the content of reduced glutathione and ascorbate in wheat seedlings and plants at the stages of flag leaf, earing in varieties and introgressione lines of winter bread wheat, which differed in the level of resistance to fungal and viral diseases due to infection by pathogens were found. Soluble lectins from maize seedlings grown in condition water deficiency, hyperthermia and the combined action of these factors were isolated and purified using salting out, affinity chromatography on bromocyanactivated ovomucoid Sepharose 4B. The obtained results showed a significant increase in the activity of lectins at the action of stressors in drought resistant lines compared with non-drought-resistant ones. The isolated lectins had a molecular weight of about 50,0 kDa and increased affinity to N-acetylglucosamine, fructose-6-phosphate. The influence of salicylic and jasmonic acids on the chain of signaling pathways, which lead to the expression of protective genes and the formation of resistance of wheat plants to phytopathogens, has been determined. Product Description popup.authors Bezkrovna Lidiya Ya. Valieva Tetyana M Voytova Tetyana P Lihota Olena B Osadchuk Zul'fira Yu. Ryshakova Olga V. Tarverdieva Yevgeniya S Shalashenko Vitaliy M popup.nrat_date 2021-01-26 Close