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Агрохимия, 2023, № 9, стр. 28-36

Совместное воздействие штамма PGPB Pseudomonas plecoglossicida 2,4-D и гуминовых веществ на рост, содержание фотосинтетических пигментов и фитогормонов в растениях пшеницы в условиях засухи

А. В. Феоктистова 1, *, М. Д. Тимергалин 1, Т. В. Рамеев 1, С. П. Четвериков 1

1 Уфимский институт биологии – обособленное структурное подразделение Уфимского федерального исследовательского центра РАН
450054 Уфа, просп. Октября, 69, Россия

* E-mail: feoktistova.arisha@yandex.ru

Поступила в редакцию 01.03.2023
После доработки 08.04.2023
Принята к публикации 14.06.2023

Аннотация

Показано накопление сырой массы растений пшеницы при обработке штаммом бактерий Pseudomonas plecoglossicida 2,4-D и гуминовыми веществами при дефиците почвенной влаги. Стимуляция роста растений связана с активацией роста корня, что приводило к увеличению индекса азотного баланса и концентрации хлорофилла в побегах обработанных растений. Обнаруженное увеличение концентрации хлорофилла в растениях, обработанных P. plecoglossicida 2,4-D, коррелировало со снижением содержания абсцизовой кислоты в побегах, а у растений, обработанных гуматами – с увеличением цитокининов в побегах. Более высокая эффективность обработки растений комбинацией бактерий и гуминовых веществ, чем любым из них в отдельности, может быть связана с аддитивным эффектом этих обработок на гормональный баланс.

Ключевые слова: Pseudomonas plecoglossicida 2,4-D, пшеница, засуха, фитогормоны.

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