Relationshjip of histidine auxotrophy of Acidovorax citrulli with pathogenicity
瓜类细菌性果斑病菌组氨酸营养缺陷型与致病性相关

Acidovorax citrulli(Ac) is an important bacterium that occurs in watermelon,melon and other cucurbits.It mainly damages watermelon and melon,and can cause leaf blight,fruit rot,and even mortality.Objective] To verify the relationship between defects in the synthesis of histidine and the pathogenicity of Ac.Methods] We generated a transposon(Tn5) mutant library on the background of strain xjl12 of Ac.Then we used subclone technology to identify the gene.Results] The mutant could not elicit the hypersensit...