云南省滇重楼灰斑病病原鉴定  

Pathogen identification of Paris polyphylla var.yunnanensis(Franch)Hand.-Mazz gray spot disease in Yunnan Province

作　　者：廖永琴 王楠 矣小鹏 施竹凤 申云鑫 莫艳芳 杨童雨 何永宏[1] 杨佩文[2] LIAO Yongqin;WANG Nan;YI Xiaopeng;SHI Zhufeng;SHEN Yunxin;MO Yanfang;YANG Tongyu;HE Yonghong;YANG Peiwen(College of Yunnan Agricultural University plant protection,Kunming 650000,China;Institute of Agricultural Environment and Resources,Yunnan Academy of Agricultural Sciences,Kunming 650000,China)

机构地区：[1]云南农业大学植物保护学院,昆明650000 [2]云南省农业科学院农业环境资源研究所,昆明650000

出　　处：《植物病理学报》2024年第6期1280-1285,共6页Acta Phytopathologica Sinica

基　　金：云南省重点科技项目(202202AE090010、202102AE090117);云南省农业科学院农业环境资源研究所所长基金(2021HZS003)。

摘　　要：滇重楼[Paris polyphylla var.yunnanensis(Franch) Hand.-Mazz],别名独角莲,为百合目(Liliflorae)延龄草科(Trilliaceae Lindl)重楼属(Paris L.)多叶重楼(Paris polyphylla Smith)变种,多年生浅根草本植物[1-2],在我国是一种重要的中药材植物,现代药理学研究发现滇重楼具有抗肿瘤、止血、抑菌等作用[3],《中国药典》中也记录滇重楼具有凉肝定惊、清热解毒和消肿止痛的作用[4]。Paris polyphylla var.yunnanensis(Franch)Hand.-Mazz is an important cash crop in Yunnan ethnic minority areas.In 2022,we discovered a new type of leaf spot disease in the Lijiang planting area,which can damage the entire growth period of the crop.The typical symptoms in the field were spots(diameter 2.4-6.7 mm)on the surface of the disease leaves,the leave become brown and necrosis in later stage thus resulting in serious economic losses.We isolated pathogenic bacteria by monosporophyte isolation,and identified by morphological observation and polygenic phylogenetic analysis,and its pathogenicity was verified using Koch's rule.The final identification results showed that the pathogen was a new species of Cercospora and was named Cercospora polyphylla x.he&P.W.Yang,sp.ll according to the binomial nomenclature.This is the first report of Paris polyphylla var.yunnanensis(Franch)Hand.-Mazz leaf disease caused by C.polyphylla in China,and this study will provide a theoretical basis for the epidemic and comprehensive prevention and control of the disease.

关 键 词：灰斑病 病原鉴定 独角莲 《中国药典》 滇重楼 现代药理学 重楼属 多叶重楼 

分 类 号：S432.44[农业科学—植物病理学]