茶叶科学Issue(1)：59-67,9.
茎点霉真菌 Phoma adianticola 引起的一种茶树新病害
A New Disease of Tea Plant Caused by Phoma adianticola
摘要
Abstract
This paper aims to study the pathogen isolation and identification of a kind of disease causing browning on tea buds. The pathogenic strain was obtained according to Koch's Rule. The results of morphological observation of strains and the rDNA ITS molecular identification under the condition of PDA culture showed that the pathogen was a fungus of phoma. The pathogenic strain was further identified in according to the identification procedures of phoma. After 7 days on the OA and MA culture medium, the average diameter of colonies was 6.0-6.4 cm. Pycnidia were globose with 1-2 ostioles, glabrous or with some hyphal outgrowths. Conidia were ellipsoidal, aseptate, usually with two polar guttules, mostly (4.9-6.3) μm×(2.1-2.8) μm in size. The NaOH reaction was positive on OA and MA, the colour became yellow-green. The characteristics described above showed that the pathogen was preliminarily identified as Phoma adianticola. This disease of tea buds caused by P. adianticola may be a new disease of tea plant. According to the symptoms of infection, this disease was temporarily described as the buds-browning disease of tea.关键词
茎点霉/Phoma adianticola/茶树Key words
phoma/phoma adianticola/tea plant分类
农业科技引用本文复制引用
杨文,陈瑶,陈小均,姚雍静,周玉锋..茎点霉真菌 Phoma adianticola 引起的一种茶树新病害[J].茶叶科学,2016,(1):59-67,9.基金项目
贵州省科学技术基金项目（黔科合 J 字[2014]2101号）、贵州省农业攻关项目（黔科合 NZ 字[2012]3022号）。 （）
