线虫是地球上数量众多的多细胞动物,估计有50万种,广泛发生于各种场所,有的在海洋、淡水或土壤中自由生活,有的是动、植物的寄生物。 历史 最早发现的人体寄生线虫,记载于公元前2700年左右的中国《黄帝内经》中。在公元前4500年埃及早期的资料中也曾提及动物寄生线虫。早在100多年前,不列颠群岛及欧洲学者就着手研究植物寄生线虫,但直到本世纪中期才普遍认识到线虫是植物病害的 Nematodes are multicellular animals on Earth with an estimated 500,000 species that occur widely in various settings. Some live freely in the oceans, freshwater or soil, and some are parasites of animals and plants. The earliest human parasitic nematode discovered in history was recorded in the Yellow Emperor’s Canon of Internal Medicine in China around 2700 BC. Parasitic nematodes were also mentioned in early Egyptian data in 4500 BC. As early as more than 100 years ago, British Isles and European scholars started to study plant parasitic nematodes, but it was not until the middle of this century that it was widely recognized that nematodes are plant diseases