Differential adaptability of active ammonia-oxidizing bacteria and archaea to nitrogen amendment and fusarium in monocropped banana soils.

ABSTRACT: This study examines how intensive agricultural management influences ammonia-oxidizing microbial communities (AOB and AOA) in banana monoculture systems, with implications for nitrogen cycling and soil acidification dynamics. While previous research has documented the impact of synthetic fertilizers and pathogens on microbial populations in agroecosystems, the responses of active AOB/AOA taxa under combined nitrogen and disease stressors remain largely uncharacterized. We employed soil microcosms established from a native forest (Y0), a two-year-old (Y2), and a twelve-year-old (Y12) banana plantation. Treatments included urea amendment, Fusarium oxysporum f. sp. cubense (Foc) inoculation, and their combination. AOB/AOA activity was quantified via ¹³CO₂ DNA stable isotope probing, while com

SUBMITTER: Fan P 

PROVIDER: S-EPMC12275427 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature