Comammox Nitrospira act as key bacteria in weakly acidic soil via potential cobalamin sharing.

ABSTRACT: The discovery of comammox Nitrospira in low pH environments has reshaped the ammonia oxidation process in acidic settings, providing a plausible explanation for the higher nitrification rates observed in weakly acidic soils. However, the response of comammox Nitrospira to varying pH levels and its ecological role in these environments remains unclear. Here, a survey across soils with varying pH values (ranging from 4.4 to 9.7) was conducted to assess how comammox Nitrospira perform under different pH conditions. Results showed that comammox Nitrospira dominate ammonia oxidation in weakly acidic soils, functioning as a K-strategy species characterized by slow growth and stress tolerance. As a key species in this environment, comammox Nitrospira may promote

SUBMITTER: Zhao Y 

PROVIDER: S-EPMC11865330 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature