猕猴桃采后腐烂病原的鉴定

Identification of the pathogen associated with postharvest fruit rot of kiwifruit

2015年9月,于湖南省浏阳果园内发现大量采摘后易腐烂的猕猴桃,腐烂部位有明显块状褐色病斑。对染病猕猴桃腐烂部位进行病原物的分离纯化、形态学观察和致病力验证、分子生物学方法进一步区分鉴定病原菌,结果表明,导致猕猴桃腐烂的病原菌为大豆拟茎点种腐病菌(Phomopsis longicolla)。

In September2015,post–harvest rot were found on a large number of kiwifruits in Hunan province of China which shows obvious brown disease spot.To figure the reason out,pathogen segregation and purification assay were conducted on the rotten parts of the kiwifruit.By morphological observation,pathogenicity verification,and molecular biological methods Phomopsis longicolla was finally identified as the cause of the kiwifruit rot.