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链霉菌TD-1对番茄灰霉病菌的抑制及防御酶活性的影响

DOI: 10.7668/hbnxb.2015.02.018, PP. 100-103

Keywords: 链霉菌TD-1,灰霉菌,防御酶,生物防治

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Abstract:

采用体外抑菌活性和盆栽试验测定方法,研究了白黄链霉菌TD-1发酵液对番茄灰霉病菌的抑制效果及植株体内防御酶活性的影响,旨在为番茄灰霉病的生物防治提供参考。结果表明:TD-1菌株发酵液对灰霉病菌的菌丝生长和孢子萌发抑制率分别为98.1%和98.3%;TD-1发酵液在番茄植株上对灰霉病的防治效果为76.98%。喷洒TD-1发酵液24h后接种灰霉菌孢子悬浮液,番茄叶片中苯丙氨酸解氨酶(PAL)、多酚氧化酶(PPO)、过氧化物酶(POD)和超氧化物歧化酶(SOD)的活力均有所提高,分别在处理后第4,3,2,3天达到最高。

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