The adaptability of grassland soil microbiomes to resource and stress shifts is mainly accomplished by niche conservatism under nitrogen deposition.

ABSTRACT: Atmospheric nitrogen (N) deposition usually alters the ratio of resources to stress in terrestrial ecosystems and has important impacts on soil microbiomes. To elucidate the adaptability of soil microbiomes under N deposition scenarios, we conducted a 6-year N addition experiment in a temperate grassland in Inner Mongolia, applying different levels of ammonium nitrate (AN) and urea (AU) to form different resource-to-stress ratio. Our results reveal that the inborn high yield (Y)-resource acquisition (A)-stress tolerance (S) life history strategies of soil microbiomes collectively drive their adaptability to resources and stress under N deposition. Enriched taxa under AN treatment mainly belonged to Actinomycetota and Chloroflexota with Y and S strategies, while those under AU

SUBMITTER: Yu QY 

PROVIDER: S-EPMC12704437 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature