松树萎蔫病是由松材线虫(Bursaphelenchusxylophilus)引起的松属树种上的一种毁灭性的病害,因此,对松材线虫致病机理的研究具有重要的理论和实践意义.根据松材线虫和拟松材线虫致病性的差异,通过活体染色对松材线虫和拟松材线虫分泌-排泄物进行了比较研究,发现松材线虫和拟松材线虫线虫分泌-排泄物存在明显的差别,这种差别可能与松材线虫的致病性有关. Pine wilt disease is a devastating disease on pine species caused by Bursaphelenchus xylophilus, therefore, it is of important theoretical and practical significance to study the pathogenesis of pine wilt Pine wood nematode pathogenicity differences, through the living stain of Bursaphelenchus xylophilus and Bursaphelenchus xylophilus secretion - excretion were compared and found that pine wood nematode and pine nematode nematode secretion - excrement there are significant differences, which Species differences may be related to the pathogenicity of pine wood nematode.