引起草莓根腐病的镰刀菌种类鉴定  

Species identification of Fusarium spp.causing root rot on strawberry

作　　者：赵雨萌 李金婷 石昊 梁春浩[2] 王志刚[2] 吴学宏 ZHAO Yumeng;LI Jinting;SHI Hao;LIANG Chunhao;WANG Zhigang;WU Xuehong(College of Plant Protection,China Agricultural University,Beijing 100193,China;Liaoning Academy of Agricultural Sciences,Shenyang 110161,China;Liaoning Institute of Pomology,Yingkou 115009,China)

机构地区：[1]中国农业大学植物保护学院,北京100193 [2]辽宁省农业科学院,沈阳110161 [3]辽宁省果树科学研究所,营口115009

出　　处：《植物病理学报》2024年第2期451-456,共6页Acta Phytopathologica Sinica

基　　金：现代农业产业技术体系北京市特色作物创新团队(BAIC04-2022);草莓种苗标准化繁育及质量鉴定技术研究与应用(2022JH110400016)。

摘　　要：草莓(Fragaria×ananassa Duch)属于蔷薇科(Rosaceae)草莓属(Fragaria)的多年生常绿草本植物[1]。在园艺学中草莓被划归为浆果类果树,原产于南美洲,在世界范围内广泛种植[2]。草莓的栽培形式多为暖棚种植,其种植的区域较为固定,因此多发生连作现象,造成了土传病害的不断发生[3]。草莓根腐病是典型土传病害,1980年首次在日本报道,随后在中国、澳大利亚、荷兰等国家相继发生,造成了严重的经济损失[4]。In this study,155 isolates of Fusarium were isolated from the diseased roots of strawberry with the symptom of root rot,which were collected from thirteen provinces,municipalities,and autonomous regions across China from 2021 to 2022.The obtained 155 Fusarium isolates were identified to be eight species(namely F.acuminatum,F.asiaticum,F.commune,F.equiseti,F.fujikuroi,F.oxysporum,F.proliferatum,and F.solani)based on morphological characteristics and sequence analyses of internal transcribed spacer of ribosomal DNA(rDNA-ITS)and translation elongation factor-1 alpha(TEF-1α),with F.oxysporum(108 isolates,69.68%)being predominant.Results of pathogenicity test confirmed that thirty-one representative isolates belonging to these eight species of Fusarium could induce the symptom of root rot on strawberry roots,showing that they were pathogenic on strawberry roots.The average disease incidence(98.62%)and disease index(79.87)of strawberry roots caused by F.oxysporum were higher than those of the seven other species of Fusarium.To the best of our knowledge,this is the first report of F.asiaticum,F.commune,F.fujikuroi,and F.proliferatum causing strawberry root rot in China.

关 键 词：土传病害 草莓根腐病 栽培形式 浆果类果树 草莓种植 草莓属 园艺学 种类鉴定 

分 类 号：S432.44[农业科学—植物病理学]