浙江农林大学学报2025，Vol.42Issue(5)：967-974,8.DOI:10.11833/j.issn.2095-0756.20250493
菊属及近缘属抗西花蓟马种质资源筛选
Screening of germplasm resources for resistance to Frankliniella occidentalis in Chrysanthemum and related genera
摘要
Abstract
[Objective]The objective is to systematically evaluate the resistance characteristics of 31 wild germplasm resources from Chrysanthemum and its related genera such as Crossostephium to Frankliniella occidentalis through an in vitro inoculation experimental system.[Method]The detached leaf selection method was employed to quantitatively measure the avoidance behavior of adult thrips within 24 hours,as well as to determine the density of secretory glandular trichomes and T-shaped glandular trichomes on leaves.[Result]The population size of F.occidentalis after inoculation was classified into five resistance grades(highly resistant,moderately resistant,lowly resistant,susceptible,and highly susceptible)through quantitative grading,among which four species,namely Aster spathulifolius,Crossostephium chinense,Chrysanthemum zawadskii and Chrysanthemum makinoi,showed significant resistance,while Chrysanthemum nankingense and Ajania×marginatum showed high sensitivity.Pearson correlation analysis revealed there was a significant negative correlation between the density of secretory glandular trichomes on the adaxial leaf surface and the population size of F.occidentalis(P＜0.05),indicating that this type of glandular trichome might exert a repellent effect by secreting terpenoid secondary metabolites.[Conclusion]The intrinsic relationship between leaf morphological resistance traits and F.occidentalis behavior have been clarified,providing a phenotypic basis for investigating the molecular mechanism of chrysanthemum resistance to F.occidentalis.[Ch,5 fig.2 tab.28 ref.].关键词
菊属植物/西花蓟马/腺毛/抗虫性/种质资源评价鉴定Key words
Chrysanthemum/Frankliniella occidentalis/glandular trichomes/insect resistance/evaluation and identification of germplasm resources分类
农业科技引用本文复制引用
宋召丽,廖园,柳志勇,王海滨,房伟民,陈发棣,王振兴..菊属及近缘属抗西花蓟马种质资源筛选[J].浙江农林大学学报,2025,42(5):967-974,8.基金项目
江苏省农业科技自主创新项目(CX(23)3002) （CX(23）
国家自然科学基金资助项目(32341048) （32341048）
