一种蛋白激发子产生菌细极链格孢菌的生物学特性研究

目的]探讨蛋白激发子产生菌链格孢菌的基本生物学特性。方法]研究不同温度、湿度、pH值、碳源及氮源对该菌菌丝生长及分生孢子萌发的影响。结果]该菌菌丝生长最适温度28℃,最适pH值7~8 孢子萌发的最适温度28℃,最适相对湿度98%,最适pH值7~8。葡萄糖为最适碳源,最适氮源为蛋白胨,硫酸胺和氯化胺等会抑制菌丝生长。结论]中温高湿环境利于链格孢菌的生长及孢子萌发,不同营养条件对该菌菌丝生长有显著影响。

Study on the Biological Characteristics of a Kind of Protein Activator Producing Fungus Alternaria tenuissima

Objective ] The research aimed to study the biological characteristics of a kind of protein activator producing fungus Alternaria tenuissima.Method] The effects of different temperature,humidity,pH value,carbon source and nitrogen source on the mycelial growth and conidium germination of A.tenuissima were studied.Result] The optimal temperature for the mycelial growth of A.tenuissima was 28 ℃ and the optimal pH was 7-8.The optimal temperature for the conidium germination was 28 ℃,the optimal humidity was 98% and the optimal pH value was 7-8.The optimal carbon source was glucose and the optimal nitrogen source was peptone.(NH4)2SO4 and NH4Cl would inhibit the mycelial growth.Conclusion] Moderate temperature and high humidity environments were favorable for the mycelial growth and conidium germination of A.tenuissima.Different nutrition conditions had significant effects on the mycelial growth of A.tenuissima.