吉林省茄子黄萎病菌致病力分化与抗病种质资源筛选  

Pathogenicity Differentiation of Verticillium dahliae and Screening of Resistant Germplasm Resouces of Eggplant in Jilin Province

作　　者：刘燕妮[1] 马新智 侯立贺 惠云芝[1] 毛芙蓉[1] LIU Yanni;MA Xinzhi;HOU Lihe;HUI Yunzhi;MAO Furong(Jilin Academy of Vegetable and Flower Science,Jilin Province,Changchun 130033,Jilin,China)

机构地区：[1]吉林省蔬菜花卉科学研究院,吉林长春130033

出　　处：《中国蔬菜》2025年第2期115-122,共8页China Vegetables

基　　金：吉林省财政厅部门预算基本科研经费资助项目(220000222000000055731);吉林省科技发展计划攻关项目(20190301053NY)。

摘　　要：为明确吉林省茄子黄萎病菌致病力分化情况并筛选抗病材料,选取两种不同抗性的材料作为鉴别寄主,使用蘸根法对自主分离的45株茄子黄萎病菌进行致病力分化研究,并在此基础上对43份茄子材料进行黄萎病抗性评价。结果表明:吉林省茄子黄萎病菌致病力分化严重,可分为3个类型。第Ⅰ类型菌株致病力强,平均病情指数大于70,占供试菌株的31.11%;第Ⅱ类型致病力中等,平均病情指数在30~70之间,占供试菌株的62.22%;第Ⅲ类型致病力弱,平均病情指数均低于30,占供试菌株的6.67%。分析菌株致病力与培养特征、生长速度及致病型的相关性,发现相关性弱。对43份茄子材料进行抗性筛选,发现抗病材料2份,占筛选材料的4.65%,中抗材料6份,占13.95%,耐病材料14份,占32.56%,而中感和感病材料共21份,占48.84%。研究结果为茄子黄萎病抗病育种提供了重要的抗源材料。In order to clarify the pathogenicity differentiation of Verticillium dahliae in eggplant of Jilin Province and screen for disease-resistant materials.Two materials with different resistance were selected as identification hosts.The pathogenicity differentiation of 45 strains of V.dahliae isolated from Jilin Province was studied using the root-dip method,and based on this,the resistance of 43 materials to V.dahliae was evaluated.The results showed significant differences in pathogenicity among different strains,which could be divided into three types.TheⅠtype had strong pathogenicity,with an average disease index greater than 70,accounting for 31.11%of the tested strains.TheⅡtype had moderate pathogenicity,with an average disease index between 30-70,accounting for 62.22%of the tested strains.TheⅢtype had weak pathogenicity,with an average disease index lower than 30,accounting for 6.67%of the tested strains.Analysis of the correlation between pathogenicity,culture characteristics,growth rate,and pathogenic type revealed a weak correlation.Among the 43 materials,2 disease-resistant materials were screened,accounting for 4.65%of the screened materials,6 materials with medium resistance,accounting for 13.95%,14 materials were tolerant,accounting for 32.56%,while 21 materials were classified as moderately susceptible or susceptible,accounting for 48.84%.These results provide important resistant germplasm for breeding eggplants resistant to Verticillium wilt.

关 键 词：茄子 大丽轮枝菌 致病力分化 种质资源 

分 类 号：S43[农业科学—农业昆虫与害虫防治]