引起山西省葡萄白纹羽病的病原菌鉴定  

Identification of the pathogen causing white root rot of grapevine in Shanxi province

作　　者：王萌 吴林娜 陈鹏召 李兴红[1] 张玮[1] 燕继晔[1] WANG Meng;WU Linna;CHEN Pengzhao;LI Xinghong;ZHANG Wei;YAN Jiye(Beijing Key Laboratory of Environment Friendly Management on Fruit Disease and Pests in North China,Institute of Plant Protection,Beijing Academy of Agriculture and Forestry Sciences,Bejing 100097,China;Department of Plant Pathology,China Agriculture University,Beijing 100193,China)

机构地区：[1]北方果树病虫害绿色防控北京市重点实验室,北京市农林科学院植物保护研究所,北京100097 [2]中国农业大学植物保护学院,北京100193

出　　处：《植物病理学报》2024年第4期843-847,共5页Acta Phytopathologica Sinica

基　　金：财政部和农业农村部:国家现代农业产业技术体系资助(CARS-29);北京市农林科学院杰出科学家培育专项(JKZX202204)。

摘　　要：葡萄(Vitis vinifera L.)为葡萄科葡萄属木质藤本植物,是世界重要的果树之一,其经济价值较高,用途多样,可以鲜食、酿酒、制干和制汁等^([1])葡萄白纹羽病在世界范围内常见,其病原菌为座坚壳菌(Rosellinia spp.),能严重危害树体健康^([2])该病害田间症状主要表现为在根部表面覆盖一层白色至灰白色的菌丝层,地上部分生长衰弱,最终导致植株死亡^([3])。White root rot is one of the most important root diseases of grape.From 2021 to 2022,the symptoms of white mycelium on the surface of grape roots were observed in several grapevines in Shanxi Province,China,with the incidence of 26.74%.Symptomatic root samples were collected and taken back to the laboratory to isolate the fungi.In this study,twenty strains were obtained by single hyphal purification.Based on the morpho-logical characteristics and multi-gene(ITS,LSU and TUB2)phylogenetic analysis,these strains were identified as Rosellinia necatrix.To confirm the pathogenicity,the inoculation was performed by adding wheat seeds colonized by R.necatrix in the soil.The results showed that R.necatrix was pathogenic to the grape.To our knowledge,this is the first report of R.necatrix causing white root in Shanxi province,China.

关 键 词：木质藤本植物 白纹羽病 病原菌鉴定 菌丝层 田间症状 葡萄属 葡萄科 

分 类 号：S432.44[农业科学—植物病理学]