植物也是会生病的。长期以来,人们在防治植物病害的斗争中,较多地注意了病原物的侵染问题,因而大量使用农药,农药毒性越来越强,危害人的健康,成为当前世界上普遍关注的一个严重社会问题。其实,科学家们早就发现,植物在长期的演化过程中,形成了许多同病原物作斗争的特性,病原物侵害植物必须首先冲破植物同病原物作斗争的种种“防线”,而植物正是依靠这些“防线”,才得以不生病或少生病,顺利地生长发育,繁衍后代。植物的这种特性就叫做植物免疫性。为着保护环境和各类农副产品不受污染,现在人们越来越重视植物免疫性 Plants are also sick. For a long time, people have paid more attention to the infection of pathogens in the fight against plant diseases. Therefore, the use of pesticides in large quantities has become more and more toxic to the pests and endangering people’s health and become a serious concern in the world at present Social Issues. In fact, scientists have long discovered that in the long-term evolution of plants, many characteristics of struggle against pathogens have been formed. Pathogen-invasive plants must first break through the various “lines of defense” in which plants struggle against pathogens, and plants are exactly Rely on these “lines of defense” before being able to get sick or less sick, smoothly growing and multiplying offspring. This characteristic of plants is called plant immunity. In order to protect the environment and various types of agricultural and sideline products from pollution, people pay more and more attention to plant immunity