水稻内生细菌B196的鉴定及其对水稻纹枯病的防治作用

Chinese Journal of Biological Control(2011)

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Abstract
从水稻体内分离得到的细菌菌株B196对水稻纹枯病菌Rhizoctonia solani的生长有较强抑制作用。通过形态学和生理生化鉴定及16S rDNA序列分析,将菌株B196鉴定为巨大芽孢杆菌Bacillus megaterium。采用浸种和喷雾的方法将菌株B196接种到水稻植株后,均能在稻株体内回收到该菌株,表明菌株B196能在水稻体内定殖。菌株B196对水稻纹枯病的盆栽和田间防效分别为64.29%和55.13%。
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Key words
identification,rice sheath blight,endophytic bacteria,control effect,colonization
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