Arbuscular mycorrhiza suppresses microbial abundance, and particularly that of ammonia oxidizing bacteria, in agricultural soils.

ABSTRACT: Interactions between arbuscular mycorrhizal (AM) fungi and ammonia-oxidizing (AO) microorganisms, two important microbial guilds contributing to soil-plant mineral nutrient cycling, are complex, given the high variability of soil biological, physical, and chemical properties. In addition, AO microorganisms are generally slow growing and require ample time to establish. Their communities are thus difficult to reconstruct under laboratory conditions, for example after soil sterilization. Therefore, in this study, we investigated quantitative and compositional responses of indigenous microorganisms occurring in 50 different field soils (collected from grasslands and arable fields) to actively growing mycelium of the AM fungus Rhizophagus irregularis. To this end, we quantified the abun

SUBMITTER: Sun D 

PROVIDER: S-EPMC12669096 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature