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In order to further control the harm of Magnaporthe grisea on rice,276 strains of endophytic bacteria were isolated from soybean root nodules.Taking Magnaporthe griseaas as tested pathogens,the endophytic bacteria were performed by antagonistic test with confront culture and plate streaking method.The pathogens were analyzed by microscopic observations,the obvious effect of antagonistic strains were determinated by cell morphological observation,16S rDNA sequencing and phylogenic analysis.