Root microbiota regulates tiller number in rice
Rice tillering is an important agronomic trait regulated by plant genetic and environmental factors. However, the role and mechanism of the root microbiota in modulating rice tillering have not been explored. Here, we examined the root microbiota composition and tiller numbers of 182 genome-sequenced rice varieties grown under field conditions and uncovered a significant correlation between root microbiota composition and rice tiller number. Using cultivated bacterial isolates, we demonstrated that various members of the root microbiota can regulate rice tillering in both laboratory and field conditions. Genetic, biochemical, and structural analyses revealed that cyclo(Leu-Pro), produced by the tiller-inhibiting bacterium Exiguobacterium R2567, activates the rice strigolactone (SL) signaling pathway by binding to the SL receptor OsD14, thus regulating tillering. The present work provides insight into how the root microbiota regulates key agronomic traits and offers a promising strategy for optimizing crop growth by harnessing the root microbiota in sustainable agriculture.
Authors
- Jinhua Yang (ORCID: https://orcid.org/0000-0002-5425-7421)
- Rubén Garrido‐Oter (ORCID: https://orcid.org/0000-0003-1769-892X)
- Song Gao (ORCID: https://orcid.org/0000-0001-7427-6681)
- Aalt D. J. van Dijk (ORCID: https://orcid.org/0000-0002-8872-5123)
- Jin‐Wei Wei (ORCID: https://orcid.org/0000-0002-0159-984X)
- Di Zou (ORCID: https://orcid.org/0000-0001-8435-9739)
- Jinghang Zhou (ORCID: https://orcid.org/0000-0002-7454-8859)
- Ancheng C. Huang (ORCID: https://orcid.org/0000-0003-0355-4271)
- Lemeng Dong (ORCID: https://orcid.org/0000-0002-1435-1907)
- Binglei Wang (ORCID: https://orcid.org/0000-0002-5958-2637)
- Jinfang Chu (ORCID: https://orcid.org/0000-0003-1677-8776)
- Chengcai Chu (ORCID: https://orcid.org/0000-0001-8097-6115)
- Jingwei Yu (ORCID: https://orcid.org/0000-0003-4268-436X)
- Xiangbing Meng (ORCID: https://orcid.org/0000-0001-7040-7138)
- Peiyong Xin (ORCID: https://orcid.org/0000-0003-4429-244X)
- Rui Dai (ORCID: https://orcid.org/0000-0003-1446-7173)
- Harro J. Bouwmeester (ORCID: https://orcid.org/0000-0003-0907-2732)
- Xinwei Ban
- Changsheng Li (ORCID: https://orcid.org/0000-0002-9579-4127)
- Mingyu Wang (ORCID: https://orcid.org/0000-0002-1868-3220)
- Bing Wang (ORCID: https://orcid.org/0000-0002-2759-1512)
- Hong Yu (ORCID: https://orcid.org/0000-0002-6819-6607)
- Jingying Zhang (ORCID: https://orcid.org/0000-0002-6503-0767)
- Yang Bai (ORCID: https://orcid.org/0000-0003-3686-1868)
- Yongxin Liu (ORCID: https://orcid.org/0000-0003-1832-9835)
- Yuhang He
- Peng Yu (ORCID: https://orcid.org/0000-0003-1670-8428)
- Haoran Xu (ORCID: https://orcid.org/0000-0002-8415-7085)
- Bin Hu (ORCID: https://orcid.org/0000-0002-2696-4348)
- Qiuxia Wang (ORCID: https://orcid.org/0009-0009-3516-6223)
- Weidong Liu (ORCID: https://orcid.org/0000-0002-4034-5543)
- Qingliang Hu (ORCID: https://orcid.org/0009-0007-4454-6127)
- Jiayang Li (ORCID: https://orcid.org/0000-0001-9245-0209)
Institutions
- Hunan University (CN)
- Chinese Academy of Sciences (CN)
- Peking University (CN)
- Institute of Genetics and Developmental Biology (CN)
- Center for Life Sciences (CN)
- State Key Laboratory of Chemobiosensing and Chemometrics (CN)
- Technical University of Munich (DE)
- University of Amsterdam (NL)
Publication Details
- Journal
- Cell
- Published
- 2025-04-22
- DOI
- https://doi.org/10.1016/j.cell.2025.03.033
- Citations
- 37
- Primary Topic
- Legume Nitrogen Fixing Symbiosis
- Type
- article
- Field-Weighted Citation Impact
- 64.74