Comparative analysis of rhizobacterial communities across five medicinal plants in Xinjiang

were selectively enriched in different plant rhizospheres. Total potassium (TK), TN, and TP were the key edaphic drivers, with TK negatively correlated with bacterial diversity, and TN/TP regulating the distribution of dominant genera. This study demonstrates high plant-specificity of rhizobacterial communities in Xinjiang medicinal plants and the dominant role of soil TK, TN, and TP, providing a scientific basis for the precise cultivation of medicinal plants and the development of specialized microbial agents.