Bacillus amyloliquefaciens GZY63, an endophytic bacteria in the roots of Camellia oleifera
This study aimed to investigate whether Fe supplementation could induce a transition from a planktonic to a biofilm-associated lifestyle in Bacillus GZY63. We evaluated the effects of Fe on biofilm formation, antifungal activity, and biocontrol performance, and performed integrated transcriptomic and metabolomic analyses to elucidate the underlying mechanisms. The results demonstrated that Fe significantly enhanced biofilm formation and modulated genes and metabolic pathways related to signal transduction, energy metabolism, and secondary metabolite biosynthesis.