Summary
The cooperation between AMF and the N<sub>2</sub>O-reducing Pseudomonas residing on hyphae significantly reduce N<sub>2</sub>O emissions in the microsites. Carboxylates exuded by hyphae act as attractants in recruiting P. fluorescens and also as stimulants triggering nosZ gene expression. Our discovery indicates that reinforcing synergies between AMF and hyphosphere microbiome may provide unexplored opportunities to stimulate N<sub>2</sub>O consumption in nutrient-enriched microsites, and consequently reduce N<sub>2</sub>O emissions from soils. This knowledge opens novel avenues to exploit cross-kingdom microbial interactions for sustainable agriculture and for climate change mitigation. Video Abstract.
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