But because they're not plant pathogens, they don't typically cause spots.

但是因为它们不是植物病原菌，所以不会导致斑点。

Utilization of mycoparasites is one of the main mechanisms to control plant pathogens in biological approaches.

对重寄生菌这一类极具潜力的生防菌的研究已从生物资源调查转向侵染植物病原菌的机理方面.

In addition, research was done on the mechanisms by which Bacillus subtilis stains control plant disease and on the ecology of important plant pathogens such as Pythium.

另外，还对枯草芽孢杆菌的作用机理以及重要植物病原菌如腐霉菌的生态学进行了研究。