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凝集素是一类广泛分布在动物、植物和微生物体内的蛋白质或糖蛋白。植物凝集素在植物对病虫害防御机制中起着重要作用。曾仲奎等( 1 995)和刘士庄 ( 1 996)等分离纯化到棉花凝集素 ,并检测其对枯萎病和黄萎病的抗生效应。Van damme E等 ( 1 991 )分离到对褐稻飞虱有致死活性的
Lectins are a class of proteins or glycoproteins that are widely distributed in animals, plants and microorganisms. Plant lectins play an important role in plant defense mechanisms against pests and diseases. Zeng Zhongkui et al. (1995) and Liu Shizhuang (1996) isolated and purified cotton lectin, and tested its resistance to wilt and Verticillium wilt. Van damme E et al. (1991) isolated lethal activity against brown planthopper