论文部分内容阅读
在室内测定了盾壳霉(Coniothyriumminitans)对不同寄主上的核盘菌(Sclerotiniasclerotiorum)菌核的寄生致腐作用,研究了温度、含水量和土壤类型等生态因子对核盘菌菌核的寄生致腐作用的影响,通过检测土壤的呼吸速率探讨了它在土壤中定殖与核盘菌菌核的关系。结果表明:盾壳霉能寄生致腐核盘菌属所有供试菌株的菌核;寄生致腐菌核的最适温度是20℃,最适相对含水量为50%~60%;盾壳霉在供试的8种土壤中均能寄生致腐菌核,对它们的pH值要求不严格,但土壤类型影响其寄生致腐速度;在土壤中添加菌核和菌核提取液都可不同程度地刺激它的生长
The parasitic and lethal effects of Coniothyrium minitans on the sclerotinia sclerotiorum sclerotia of different hosts were determined indoors, and the parasitism of ecological factors such as temperature, water content and soil types on Sclerotinia sclerotiorum was studied The relationship between the colonization of Sclerotinia sclerotiorum and the sclerotial sclerotiorum was explored by measuring the respiration rate of soil. The results showed that C. fortunei could parasitize the sclerotial of all tested strains of S. sclerotiorum; the optimum temperature of parasite was 20 ℃ and the optimum relative water content was 50-60% In the eight kinds of soils tested, they could parasitize the rot fungi nucleus, their pH value was not strict, but the soil type affected the parasitic rate. In the soil, the addition of sclerotinum and sclerotinum extract could all have different degrees To stimulate its growth