| 描述信息 |
In this study, we demonstrate that the adaptive evolution of OsLHT1 in response to soil organic N availability has resulted in two functionally distinct haplotypes, with Type I haplotype predominantly found in japonica and Type II in indica. Type I haplotype exhibited greater amino acid acquisition efficiency than the Type II haplotype, associating with higher soil amino acid content and a specific group of rhizosphere microbes. By isolating core microbial taxa enriched in Type I haplotype rhizospheres, we constructed a synthetic microbiota (SynM-OrgN) that promotes amino acid production through the decomposition of organic matter and enhances amino acid uptake in rice roots by upregulating OsLHT1 gene expression. We further confirmed that the SynM-OrgN colonization efficiency was specifically driven by the OsLHT1 gene. Particularly, organic fertilization management facilitates this colonization process, hence could promote organic N use efficiency and enhance rice yield. |
