著者

Atsushi Ishihara Kana Ando Anna Yoshioka Koichi Murata Yu Kokubo Noriko Morimoto Naoki Ube Yukinori Yabuta Makoto Ueno Shin-ichi Tebayashi Kotomi Ueno Kumiko Osaki-Oka

出版者

Pesticide Science Society of Japan

雑誌

Journal of Pesticide Science (ISSN:1348589X)

巻号頁・発行日

vol.44, no.2, pp.89-96, 2019-05-20 (Released:2019-05-20)

参考文献数

36

被引用文献数

10

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We investigated the effect of treatment with hot water extracts from the spent mushroom substrates (SMSs) of Lentinula edodes and Hypsizygus marmoreus on the resistance of rice leaves to Pyricularia oryzae infection. The spraying of the SMS extracts clearly suppressed the development of lesions caused by Py. oryzae infection. The accumulation of phytoalexins momilactones A and B, oryzalexin A, and sakuranetin was markedly induced by the spraying of extracts. The enhanced expression of defense related genes PR1b and PBZ was also found in leaves sprayed with the extracts. Treatments with the extracts also affected phytohormone levels. The levels of N6-(Δ2-isopentenyl)adenine and trans-zeatin markedly increased in response to treatment, whereas the levels of salicylic and jasmonic acids were largely unchanged.