Microbial inoculants are recognized as environmentally friendly methods to promote plant growth and improve soil properties. However, the effects of inoculation on the rhizosphere and rhizoplane community structure of plants remain poorly documented and need further investigation. () strain has nitrogen fixing ability and () strain is a plant growth-promoting rhizobacterium (PGPR). In this study, we investigated the effects of single and co-inoculation with and on the increase of rice yield as well as on the microbial communities in the rhizosphere and rhizoplane of rice through potting experiments, respectively. The results showed that inoculation significantly increased rice yield and seed setting rate, with co-inoculation raising the yield by up to 13.7%. Inoculation influenced both rhizosphere and rhizoplane community structures and functions, amplifying the differences between them. The most significant changes were brought about by the combined inoculation treatment. Co-inoculation with and had a synergistic effect. The profound alterations of rhizoplane bacterial community structures and functions were proved to be positively correlated with rice yield and seed setting rate ( = 0.59 - 0.76, < 0.05). These results provide new ideas for the investigation of the potential microbiological mechanisms of microbial co-inoculation in practical agricultural applications.

中文翻译：

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微生物接种改变根面细菌群落并与水稻产量增加相关

微生物接种剂被认为是促进植物生长和改善土壤性质的环境友好方法。然而，接种对植物根际和根面群落结构的影响仍然鲜有记录，需要进一步研究。()菌株具有固氮能力，()菌株是植物根际促生长细菌(PGPR)。本研究通过盆栽试验，分别研究了单接种和联合接种对水稻增产的影响，以及对水稻根际和根面微生物群落的影响。结果表明，接种显着提高了水稻产量和结实率，其中联合接种增产高达13.7%。接种影响根际和根面群落的结构和功能，放大了它们之间的差异。最显着的变化是联合接种处理带来的。与 和 联合接种有协同作用。根面细菌群落结构和功能的深刻变化被证明与水稻产量和结实率呈正相关（= 0.59 - 0.76，< 0.05）。这些结果为研究微生物共接种在实际农业应用中的潜在微生物机制提供了新思路。