海南省香蕉枯萎病病原菌的鉴定

The Identification of Pathogen Causing Banana Fusarium Wilt in Hainan

香蕉枯萎病在海南省为首次报道。在Komada改良培养基鉴定的基础上,用温室人工接种法对采自海南省各市县香蕉种植区的18个香蕉和粉蕉假茎分离物进行鉴定。结果表明香蕉枯萎病菌的两种分离物在培养特性和致病性上存在明显区别,分离自粉蕉的12个菌株为1号生理小种,而分离自香蕉的6个菌株为4号生理小种。

Banana Fusarium wilt [ Fusarium oxysporum f. sp. cubense （ E. F. Smith） Snyder et Hansen] is recorded in Hainan for the first time. On the base of the modified Komada medium, virulence 18 isolates of Fusarium wilt of banana from Hainan banana growing areas was identified by artificial inoculation in glasshouse. The results showed that all isolates in Hainan existed 2 physiologic race of I from Fenjiao and 4 from Xiangjiao based on the culturing characters and pathogenic differentiation.