中国森林病虫2026，Vol.45Issue(1)：18-23,6.DOI:10.19688/j.cnki.issn1671-0886.20250041
松材线虫不同虫株形态学指标及其对红松苗木致病力比较
Comparison of morphological index and pathogenicity to Pinus koraiensis seedling among different strains of Bursaphelenchus xylophilus
摘要
Abstract
To analyze the differences of Bursaphelenchus xylophilus strains and the causes of pathogenicity differentiation of B.xylophilus,the morphological indexes of B.xylophilus strains from different regions,the fecundity under different temperature conditions,the pathogenicity to 3-year-old Pinus koraiensis seedlings and the amount of reproduction in trees were measured.The results showed that the strain from Pinus massoniana in Yingtan,Jiangxi province,China(BxJXYT),the strain from Pinus sylvestris var.mongolica in Shenyang,Liaoning province,China(BxLNSY),and the strain from Pinus spp.in the United States(BxUS)were cultured at condition of 5℃to 10℃,the BxLNSY strain had a certain survival ability,while the fecundity of BxJXYT and BxUS strains was greater than that of BxLNSY at 30℃.At 25℃,the BxUS strain had the strongest pathogenicity,the most reproduction,and the most serious damage to the plant.The pathogenicity of B.xylophilus strains was related to the geographical origin,original host plants and fecundity of strains.The results can provide a theoretical basis for the study of the pathogenic mechanism of B.xylophilus and the prevention and control of pine wilt disease.关键词
松材线虫/形态学指标/接种/致病力/繁殖力Key words
Bursaphelenchus xylophilus/morphological index/inoculation/pathogenicity/reproductive capacity分类
农业科技引用本文复制引用
罗在全,李德斌,董博,何姗,李亚男,吴昊..松材线虫不同虫株形态学指标及其对红松苗木致病力比较[J].中国森林病虫,2026,45(1):18-23,6.基金项目
辽宁省应用基础项目"罹病红松内生微生物多样性及松材线虫生防菌筛选"(2023JH2/101300174) （2023JH2/101300174）
2023年联合基金项目面上资助计划项目"落叶松对松材线虫侵染的免疫应答差异分析及关键基因的功能验证"(2023-MSLH-210) （2023-MSLH-210）
沈阳工学院博士启动项目"落叶松传播松材线虫病风险研究"(BS202401) （BS202401）
