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为明确洋葱贮藏期干腐病致病镰刀菌的病原菌,甘肃农业大学、甘肃省农科院研究人员采用形态学与分子生物学方法对洋葱干腐病病原种类进行了鉴定,在CLA培养基上对两株典型菌株的菌落形态和培养特征进行了观察和描述。r DNA-ITS序列测定和同源性比对结果表明,两菌株的ITS序列分别与Gen Bank数据库已知尖孢镰刀菌和层出镰刀菌的同源性均达99%,其
In order to clarify the pathogen of dry rot pathogenic Fusarium during onion storage, researchers from Gansu Agricultural University and Gansu Academy of Agricultural Sciences used morphological and molecular methods to identify the pathogen species of onion dry rot. On the CLA medium The colony morphology and culture characteristics of two typical strains were observed and described. r DNA-ITS sequence analysis and homology comparison showed that ITS sequences of the two strains were 99% identical to Fusarium oxysporum and Fusarium graminearum respectively