云南山茶枝枯病病原菌分离鉴定  

Identification of the pathogen causing dieback disease on Camellia reticulata Lindl.in Yunnan

作　　者：普梅英 牛锦华 付芳丽 朱幼娇 吴坤 毕秀娟 武自强[1] 陈龙清 王超[1] PU Meiying;NIU Jinhua;FU Fangli;ZHU Youjiao;WU Kun;BI Xiujuan;WU Ziqiang;CHEN Longqing;WANG Chao(Southwest Forestry University,Southwest Research Center for Engineering Technology of Landscape Architecture,State Forestry and Grassland Administration,Yunnan Engineering Research Center for Functional Flower Resources and Industrialization,College of Landscape Architecture and Horticulture Sciences,Key Laboratory of Forest Disaster Warning and Control in universities of Yunnan Province,Kunming,Yunnan 650224,China)

机构地区：[1]西南林业大学/国家林业和草原局西南风景园林工程技术研究中心/云南省功能性花卉资源及产业化技术工程研究中心/云南省森林灾害预警与控制实验室,云南昆明650224

出　　处：《植物病理学报》2023年第6期1222-1225,共4页Acta Phytopathologica Sinica

基　　金：国家重点研发计划子课题(2019YFD1001005)资助;云南省大学生创新创业训练项目(202110677062)资助;云南省教育厅科学研究基金项目(2021Y259、2021J0172)资助;西南山地森林保育与利用教育部重点实验室开放基金项目(KLESWFU-202005)资助;国家基础科学公共科学数据中心“世界山茶属植物品种数据库”(课题号NBSDC-DB-03)。

摘　　要：云南山茶(Camellia reticulata Lindl.)为世界著名观赏花木,在云南栽培历史悠久,其花大繁茂、花姿多样、花色绚丽,在冬春季节构成了云南高原的独特景观,为“云南八大名花”之首,是昆明市的市花,观赏价值极高[1-3]。滇山茶常见的病害有枝枯病、花腐病、炭疽病、花叶病、媒污病等[4-5],生产和培育者只是从发病症状来判断病因,从而进行病害防治工作,但却不能精确、高效地完成防治工作。In 2021,typical branches of Camellia reticulata dieback disease were collected from Zixi mountain,Chuxiong City,Yunnan Province,and one strain was obtained by tissue isolation and single-spore culturing method.Based on pathogenicity determination,morphological characteristics and phylogenetic analysis of ITS,GAPDH,CAL,ACT,CHS-1 and TUB gene sequences,the pathogen was identified as Colletotrichum camelliae.This is the first report that Colletotrichum camelliae caused Camellia reticulata dieback disease in China.

关 键 词：云南山茶 枝枯病 观赏花木 冬春季节 病原菌分离鉴定 花腐病 发病症状 云南高原 

分 类 号：S432.44[农业科学—植物病理学]