摘要
巨大芽孢杆菌(Bacillus megaterium)B196菌株产生的Iturin A2对水稻纹枯病菌具有较强的抑制作用,其抑菌中浓度为39.5621μg/mL;在浓度为160μg/mL下,Iturin A2对水稻纹枯病的离体、盆栽和大田防效分别为100%、85.31%和84.42%,显著高于5%井冈霉素水剂有效成分为200μg/mL的防效。
The Iturin A2 produced by Bacillus megaterium strain B196 could inhibit the growth of Rhizoctonia solani. The median effect concentration （EC50） of Iturin A2 on R. solani was 39.5621 μg/mL. The control efficacy of Iturin A2 at the concentration of 160 μg/mL on the rice sheath blight caused by R. solani was 100%, 85.31% and 84.42% in vitro, in pot and in field, respectively. This efficacy was higher than that of 5% jinggangmycin at the concentration of 200 μg/mL.
出处
《广东农业科学》
CAS
CSCD
北大核心
2014年第4期96-99,共4页
Guangdong Agricultural Sciences
基金
广西自然科学基金(2011GXNSFA018064)
