Mungbean is a new host of Botrytis cinerea

【摘要】：Botrytis cinerea,is a ubiquitous and destructive plant pathogen with a broad host range worldwide,which can cause serious yield losses in some crops.In 2013,a new disease with the typical symptoms of gray mold producing gray mycelia and conidia on infected tissues was observed on mungbean(Vigna radiata) grown in the field in Chongqing,China.To determine the causal agent identify,the pathogen was isolated and identified based on the morphological and molecular characterization.The rDNA ITS sequence showed 99%identity with reported Botrytis cinerea strains.Subsequently,pathogenicity assays demonstrated the pathogen was pathogenic not only on mungbean but also on other legume crops,including Phaseolus vulgaris,V.ungukulata,Pisum sativum,Vicia faba,Glycine max,and Phaseolus angularis.All results indicated that the causal agent was confirmed as B.cinerea.To our knowledge,this is the first report of B.cinerea causing gray mold disease on mungbean worldwide.