Тип публикации: статья из журнала
Год издания: 2020
Идентификатор DOI: 10.31857/S0026364820020038
Ключевые слова: fusarium, trichoderma, growth processes, light curves, micromycetes, pigments, quantum yield, квантовый выход, микромицеты, пигменты, ростовые процессы, световые кривые
Аннотация: Исследовали влияние спор Trichoderma asperellum MГ-97 и метаболитов Fusarium sporotrichioides Z3-06 на физиологические параметры молодых растений пшеницы (Triticum aestivum). Обработка спорами Trichoderma asperellum увеличивала лабораторную всхожесть семян, усиливала рост растений на 10 и 30-е сутки вегетации. Одновременно увеличилПоказать полностьюась площадь листьев, масса надземной части растений и масса корней. Влияние на содержание суммы зеленых пигментов было незначительным. Метаболиты Fusarium sporotrichioides, напротив, отрицательно влияли на большинство перечисленных показателей пшеницы. Исключение касается зеленых пигментов, содержание которых в листьях увеличилось. При совместном действии спор Trichoderma asperellum и метаболитов Fusarium sporotrichioides показатели роста были близки к контролю, однако всхожесть семян и энергия прорастания были подавлены. Флуоресценция листьев, зарегистрированная с помощью РАМ-методики в режимах “быстрая световая кривая” и “индукционная кривая” показала, что положительное действие Trichoderma asperellum на ростовые процессы молодых растений пшеницы не сопровождается активацией нециклического транспорта электронов. Сравнение фотохимического и нефотохимического тушения флуоресценции позволяет предположить: метаболиты Fusarium sporotrichioides, подавляя АТФ-синтазу, ингибируют реакцию фосфорилирования белков Lhcb2 в составе светособирающего комплекса ФСII. Trichoderma asperellum контролирует только действие метаболитов Fusarium sporotrichioides на АТФ-синтазу. The effect of micromycetes (Trichoderma asperellum MG-97, Fusarium sporotrichioides Z3-06 strains) on the physiological parameters of young wheat plants (Triticum aestivum) was studied. Trichoderma asperellum spores increased laboratory seed germination and plant growth on days 10 and 30 of the plant growing. At the same time, the leaf area, the weight of the aerial parts of the plants, and the mass of the roots were increased. The effect of fungal spores on cjntent of green pigments was insignificant. Effect of spores on the amount of green pigment was negligible. The metabolites of Fusarium sporotrichioides, on the contrary, influenced most of the listed indicators of wheat negatively. The exception concerns green pigments, whose the content in the leaves has increased. With the joint action of Trichoderma asperellum spores and Fusarium sporotrichioides metabolites, growth rates were similarly to control, however, seed germination and germination energy were suppressed. Leaf fluorescence was recorded by the RAM-technique in the “fast light curve” and “induction curve” protocol showed: 1 – the positive effect of Trichoderma asperellum on the growth processes of young wheat plants is not accompanied by the activation of non-cyclic electron transport; 2 – the metabolites of Fusarium sporotrichioides with the suppression of ATP synthase simultaneously inhibit the phosphorylation of Lhcb2 proteins in the composition of the light-harvesting complex PSII, which plays a key role in the non-photochemical quenching of fluorescence; 3 – Tri-choderma asperellum controls only the effect of Fusarium sporotrichioides metabolites on ATP synthase. The effect of micromycetes (Trichoderma asperellum MG-97, Fusarium sporotrichioides Z3-06 strains) on the physiological parameters of young wheat plants (Triticum aestivum) was studied. Trichoderma asperellum spores increased laboratory seed germination and plant growth on days 10 and 30 of the plant growing. At the same time, the leaf area, the weight of the aerial parts of the plants, and the mass of the roots were increased. The effect of fungal spores on cjntent of green pigments was insignificant. Effect of spores on the amount of green pigment was negligible. The metabolites of Fusarium sporotrichioides, on the contrary, influenced most of the listed indicators of wheat negatively. The exception concerns green pigments, whose the content in the leaves has increased. With the joint action of Trichoderma asperellum spores and Fusarium sporotrichioides metabolites, growth rates were similarly to control, however, seed germination and germination energy were suppressed. Leaf fluorescence was recorded by the RAM-technique in the “fast light curve” and “induction curve” protocol showed: 1 – the pos-itive effect of Trichoderma asperellum on the growth processes of young wheat plants is not accompanied by the activation of non-cyclic electron transport; 2 – the metabolites of Fusarium sporotrichioides with the suppression of ATP synthase simultaneously inhibit the phosphorylation of Lhcb2 proteins in the composition of the light-harvesting complex PSII, which plays a key role in the non-photochemical quenching of fluorescence; 3 – Trich-oderma asperellum controls only the effect of Fusarium sporotrichioides metabolites on ATP synthase. © 2020, Russian Academy of Sciences. All rights reserved.
Журнал: Микология и фитопатология
Выпуск журнала: Т. 54, № 2
Номера страниц: 134-142
ISSN журнала: 00263648
Место издания: Санкт-Петербург
Издатель: Российская академия наук