大千世界里,生物与环境之间、种群之间,在一定的时间内相互依存、相互制约,形成了既斗争又协调的整体,也就是人们常讲的生态平衡,在维持这个平衡过程中,斗争是异常激烈的,生物之间斗争的利器是“化学武器”。生物在长期生存过程中,为适应复杂环境而产生一种叫次生代谢物的化学物质。这些化学物质主要是生物碱、黄 In the big world, between creatures and the environment, and among the populations, they are interdependent and mutually restrained within a certain period of time and form a whole that is both struggling and coordinating. That is, people often talk about the ecological balance. In maintaining this balance, The struggle is extremely fierce, and the weapon of struggle between creatures is “chemical weapons.” Biology in the long-term survival process, in order to adapt to the complex environment and produce a chemical called secondary metabolites. These chemicals are mainly alkaloids, yellow