Stutzerimonas stutzeri culture enhances microbial community structure and tomato seedling growth in saline soil.

This article investigates the effects of the plant growth-promoting rhizobacterium (PGPR) *Stutzerimonas stutzeri* NRCB010 on tomato growth, soil nitrous oxide (N₂O) emissions, and rhizosphere microbial communities under normal and saline soil conditions. Using greenhouse pot experiments with two salt concentrations (0 and 3 g NaCl kg⁻¹ soil) and treatments including NRCB010 cells and culture, the study found that NRCB010 enhanced tomato biomass and alleviated salt stress, while significantly reducing N₂O emissions only under non-saline conditions. Both soil salinity and NRCB010 treatments influenced soil physicochemical properties and microbial diversity, with NRCB010 increasing beneficial bacterial abundance and nutrient availability in the rhizosphere. The findings suggest that *S. stutzeri* NRCB010 culture has potential as a microbial fertilizer to promote crop growth and stress resistance, though its capacity to mitigate N₂O emissions is limited by soil salinity.