中文摘要：

为进一步弄清松材线虫的致病机理,该文对松树上分离的松材线虫、拟松材线虫和小杆线虫的体壁物进行了初步研究。通过电镜观察和可溶性糖含量分析,发现松材线虫体表有一层很厚的物质,而拟松材线虫和小杆线虫体表比较光滑;松材线虫比其他两种线虫体表有更多的糖类物质。研究同时提出,松材线虫和拟松材线虫体表物质的厚度和糖含量,可能与二者的致病性有密切关系。

英文摘要：

Bursaphelenchus xylophilus and two no-pathogenic nematodes——B, mucronatus and Rhabditida sp. were isolated from pine wood. The thickness and content of soluble polysaccharose on the body surface of B. xylophilus were compared. The results indicated that there was a thick substance on the body surface of B. xylophilus, while the bodies of B. mucronatus and Rhabditida sp. were smooth. The content of soluble polysaccharose on the body surface of B. xylophilus was more than that of the other two no-pathogenic nematodes. Research also shows that there is a special relationship between the thickness as well as the content of soluble polysaccharose on the surface of different B. xylophilus and its pathogenicity.