云南咖啡锈菌生理小种鉴定

Identification of Coffee Leaf Rust(Hemileia vastatrix)Physiological Races in Yunnan Province

为了解云南咖啡主产区锈菌生理小种类型和地理分布,利用19个国际通用的鉴别寄主,采用人工活体接种的方法,对采自云南15个县(市)的58份锈菌样本进行鉴定。结果共鉴定出12个小种,分别为Ⅰ(v2,v5)、Ⅱ(v5)、Ⅷ(v2,v3,v5)、XVII(v1,v2,v5)、XXIV(v2,v4,v5)、XXXIII(v5,v7或v5,v7,v9)、XXXIV(v2,v5,v7或v2,v5,v7,v9)、XXXV(v2,v4,v5,v7,v9)、XXXVII(v2,v5,v6,v7,v9)、XXXIX(v2,v4,v5,v6,v7,v8,v9)、XLI(v2,v5,v8)和XLII(v2,v5,v7,v8或v2,v5,v7,v8,v9)。其中,XVII、XXIV、XXXV和XXXIX号生理小种为云南首次发现。

In order to understand the physiological races types and geographical distribution of the main coffee producing ar-eas of Yunnan province,58 samples of the Hemileia vastatrix collected from 15 areas in Yunnan were identified by using 19 internationally accepted identification hosts and artificial in vivo inoculation.In this study,12 coffee leaf rust physiolog-ical races were identified,includedⅠ(v2,v5),Ⅱ(v5),Ⅷ(v2,v3,v5),XVII(v1,v2,v5),XXIV(v2,v4,v5),XXXIII(v5,v7或v5,v7,v9),XXXIV(v2,v5,v7或v2,v5,v7,v9),XXXV(v2,v4,v5,v7,v9),XXXVII(v2,v5,v6,v7,v9),XXXIX(v2,v4,v5,v6,v7,v8,v9),XLI(v2,v5,v8)and XLII(v2,v5,v7,v8或v2,v5,v7,v8,v9).Among them,XVII,XXIV,XXXV and XXXIX were first dis-covered in Yunnan.