山茶灰斑病病原菌的分离鉴定  

Isolation andidentification of the pathogen of camellia gray spot disease

作　　者：廖振军 高灿 曾慧兰 周章燕 于鑫 李润根 LIAO Zhenjun;GAO can;ZENG Huilan;ZHOU Zhangyan;YU Xin;LI Rungen(Department of Horticulture,College of Life Science and Environmental Resource,Yichun University,Yichun 336000,China;Jiangxi Key Laboratory of Crop Growth Regulation,Yichun 336000,China)

机构地区：[1]宜春学院生命科学与资源环境学院园艺系,宜春336000 [2]江西省作物生长发育调控重点实验室,宜春336000

出　　处：《植物病理学报》2023年第6期1226-1231,共6页Acta Phytopathologica Sinica

基　　金：江西省科技计划项目(20161BBF60040);2020年江西省大学生创新创业训练计划项目(S202010417044)。

摘　　要：山茶(Camellia japonica)属山茶科山茶属的常绿乔木或灌木,是传统的名贵花卉之一,具有极高的经济、生态和观赏价值。随着其在园林绿化中的普遍应用和生产基地面积的不断扩大,山茶病害发生逐渐呈上升趋势,严重影响产业发展。目前已报道的主要病害有山茶炭疽病、灰斑病、褐斑病、叶斑病等,常导致较大的经济损失。近年来,国内外报道的山茶灰斑病病原主要有污斑拟盘多毛孢(Pestalotiopsis maculans)、白珠树拟盘多毛孢(P.gaultheriae)[2]、长刚毛拟盘多毛孢(P.longiseta)[3]、山茶拟盘多毛孢(P.camelliae)[4]、葡萄牙拟盘多毛孢(P.portugalica)[5]等。The leaves of Camellia japonica with typical symptoms of gray spot disease were collected to isolate and identify the pathogen.Through the morphological observation of the pathogen and phylogenetic analysis of LSU,ITS,TUB2 and TEF gene sequences,it was determined that the pathogen was a fungus of Pestalotiopsis sp..

关 键 词：拟盘多毛孢 名贵花卉 山茶灰斑病 常绿乔木 病害发生 褐斑病 山茶科 山茶属 

分 类 号：S432.44[农业科学—植物病理学]