植物病原菌寄生性发展过程的探讨

An Approach to the Developmental Processes of the Parasiticality of Plant Pathogens

论述了植物病原菌寄生性的发展过程、进化方向、可逆性、寄生性与危害性的关系及防治植物病害的途径．植物病原菌寄生性进化方向是沿着腐生→兼性寄生→兼性腐生→专性寄生→共生的路线发展，而且存在可逆性．探讨了施用菌根真菌在植物病害防治上的作用、植物栽培过程中重视植物与共生生物之间的共生稳定性．

The developmental processes,evolutional direction, and evolutional reversibilityare discussed of the parasiticality of plant pathogens in this paper.The relationships betweenparasiticality and harms are also discussed and a way to prevent and control plant diseasesapproached.