Possible involvement of active oxygen species in the double induction of plant defense responses

The ability of spores of Magnaporthe grisea fungus to respond to hydrogen peroxide by the excretion of elicitors was investigated. Diffusate from spores treated with H2O2 at a nonlethal concentration of 10-50 μM induced necrotization of rice (Oryza sativa L.) callus and the excretion of fungitoxic metabolites by callus cells. Hydrogen peroxide in a higher (500 μM) concentration was ineffective. It is supposed that H2O2 and other active oxygen species formed by the host plant before pathogen invasion favor the release of fungal elicitors, thus promoting elicitor interaction with host plant receptors.

Авторы
Lapikova V.P.1 , Gaivoronskaya L.M. 2 , Aver'yanov A.A.1
Редакторы
-
Издательство
-
Номер выпуска
1
Язык
Английский
Страницы
145-147
Статус
Опубликовано
Подразделение
-
DOI
-
Номер
-
Том
47
Год
2000
Организации
  • 1 Research Institute of Phytopathology, Russ. Acad. of Agricultural Sciences, Bolshie Vyazyomy, Moscow oblast, Russian Federation
  • 2 Agricultural Faculty, People's Friendship Univ. in Russia, Moscow, Russian Federation
Ключевые слова
Active oxygen species; Cell culture; Elicitor; Magnaporthe grisea; Oryza sativa
Дата создания
19.10.2018
Дата изменения
19.10.2018
Постоянная ссылка
https://repository.rudn.ru/ru/records/article/record/495/