1. Nitrosobacteria play a crucial role in the Nitrogen cycle by converting ammonia into nitrite.

一氧化氮细菌通过将氨转化为亚硝酸盐，在氮循环中扮演着至关重要的角色。

2. The growth of nitrosobacteria is directly influenced by the concentration of ammonia in the environment.

一氧化氮细菌的生长受环境中氨浓度的直接影响。