一、线虫和植物线虫的重要性及其意义线虫是动物界中一个带有激发性活力而又个体数量最大(约占动物群体的五分之四)、种类多(仅次于昆虫)的重要分支学科研究对象,包括海洋线虫、动植物寄生线虫(当今医学、农业中的重要科目)、土壤线虫(扮演着有机物消解、矿化和土壤生态系统食物链中一环的角色)。在土壤中的线虫大多数种是有益的,但一些种是重要的植物病原。目前已 I. The Importance and Significance of Nematodes and Plant Nematodes Nematodes are one of the most important (more than four-fifths of the animal population) animal species in the animal kingdom with a high degree of motivational activity (about four-fifths of the animal population) and many species (second only to insects) Subdisciplinary subjects include marine nematodes, parasitic nematodes of flora and fauna (an important subject in medicine and agriculture today), and soil nematodes that play a role in the digestion, mineralization and part of the food chain of soil ecosystems. Most nematodes in the soil are beneficial, but some species are important plant pathogens. Currently there