按我国土壤地理地带分布，从北到南采土样32个，从中分得细菌491株，并对每一菌株进行了形态学观察与描述。
From north China to south China, 32 samples of various types of soil were collected and main ecological factors which might affect the distribution of protease-producing bacteria were studied.
按我国土壤地理地带分布，从北到南采土样32个，从中分得细菌491株，并对每一菌株进行了形态学观察与描述。
From north China to south China, 32 samples of various types of soil were collected and main ecological factors which might affect the distribution of protease-producing bacteria were studied.
应用推荐