オオムギの葉身における褐色雪腐病拡大抵抗性に及ぼす植物ホルモン散布処理の影響

日本作物学会紀事

竹中 重仁¹  湯川 智行²  三浦 重典²  渡邊 好昭² 

[1]Natl. Agric. Res. Cent. for Hokkaido Region

[2]農業・食品産業技術総合研究機構

关键词: Abscisic acid;    アブシジン酸;    Barley;    オオムギ;    Salicylic acid;    サリチル酸;    Snow damage;    雪害;    Plant hormone;    植物ホルモン;    Resistance;    抵抗性;    Snow mold;    雪腐病;   

DOI  :  10.1626/jcs.77.78

学科分类：农业科学（综合）

来源: Nihon Sakumotsu Gakkai / Crop Science Society of Japan

【 摘 要 】

The effects of foliar application of plant hormones on the resistance to Pythium snow rot in barley were studied. The resistance was estimated from the lesion length extending from the point on leaf blade where the Pythium snow rot pathogen, P. paddicum was inoculated. Abscisic acid (ABA) and salicylic acid (SA) increased the resistance, although jasmonic acid, ethephon, gibberellic acid, naphthyl acetic acid, and benzyladenine did not. Application of phenylalanine ammonia-lyase inhibitors, α-aminooxyacetic acid, nullified the resistance-increasing effect of both ABA and SA. These results suggest that ABA and SA affect the resistance, possibly through phenylpropanoid metabolism.

【 授权许可】

Unknown