Orchestration of ethylene and gibberellin signals determines primary root elongation in rice.
| Title: | Orchestration of ethylene and gibberellin signals determines primary root elongation in rice. |
|---|---|
| Authors: | Qin H; Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China.; National Key Facility of Crop Gene Resources and Genetic Improvement, Beijing 100081, China.; Pandey BK; Future Food Beacon and School of Biosciences, University of Nottingham, Nottingham LE12 5RD, UK.; Li Y; Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China.; Huang G; School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China.; Wang J; Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China.; National Key Facility of Crop Gene Resources and Genetic Improvement, Beijing 100081, China.; Quan R; Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China.; National Key Facility of Crop Gene Resources and Genetic Improvement, Beijing 100081, China.; Zhou J; Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China.; Zhou Y; Collaborative Innovation Center of Crop Stress Biology, Institute of Plant Stress Biology, Henan University, Kaifeng 475001, China.; Miao Y; Collaborative Innovation Center of Crop Stress Biology, Institute of Plant Stress Biology, Henan University, Kaifeng 475001, China.; Zhang D; School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China.; Bennett MJ; Future Food Beacon and School of Biosciences, University of Nottingham, Nottingham LE12 5RD, UK.; Huang R; Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China.; National Key Facility of Crop Gene Resources and Genetic Improvement, Beijing 100081, China. |
| Source: | The Plant cell [Plant Cell] 2022 Mar 29; Vol. 34 (4), pp. 1273-1288. |
| Publication Type: | Journal Article; Research Support, Non-U.S. Gov't |
| Language: | English |
| Journal Info: | Publisher: Oxford University Press Country of Publication: England NLM ID: 9208688 Publication Model: Print Cited Medium: Internet ISSN: 1532-298X (Electronic) Linking ISSN: 10404651 NLM ISO Abbreviation: Plant Cell Subsets: MEDLINE |
| Imprint Name(s): | Publication: 2021- : [Oxford] : Oxford University Press; Original Publication: Rockville, MD : American Society of Plant Physiologists, c1989- |
| MeSH Terms: | Gibberellins*/metabolism ; Gibberellins*/pharmacology ; Oryza*/metabolism; Ethylenes/metabolism ; Gene Expression Regulation, Plant/genetics ; Seedlings/metabolism |
| Abstract: | Primary root growth in cereal crops is fundamental for early establishment of the seedling and grain yield. In young rice (Oryza sativa) seedlings, the primary root grows rapidly for 7-10 days after germination and then stops; however, the underlying mechanism determining primary root growth is unclear. Here, we report that the interplay of ethylene and gibberellin (GA) controls the orchestrated development of the primary root in young rice seedlings. Our analyses advance the knowledge that primary root growth is maintained by higher ethylene production, which lowers bioactive GA contents. Further investigations unraveled that ethylene signaling transcription factor ETHYLENE INSENSITIVE3-LIKE 1 (OsEIL1) activates the expression of the GA metabolism genes GIBBERELLIN 2-OXIDASE 1 (OsGA2ox1), OsGA2ox2, OsGA2ox3, and OsGA2ox5, thereby deactivating GA activity, inhibiting cell proliferation in the root meristem, and ultimately gradually inhibiting primary root growth. Mutation in OsGA2ox3 weakened ethylene-induced GA inactivation and reduced the ethylene sensitivity of the root. Genetic analysis revealed that OsGA2ox3 functions downstream of OsEIL1. Taken together, we identify a molecular pathway impacted by ethylene during primary root elongation in rice and provide insight into the coordination of ethylene and GA signals during root development and seedling establishment.; (© American Society of Plant Biologists 2022. All rights reserved. For permissions, please email: journals.permissions@oup.com.) |
| Comments: | Comment in: Plant Cell. 2022 Mar 29;34(4):1157-1158. doi: 10.1093/plcell/koac020.. (PMID: 35234929) |
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| Substance Nomenclature: | 0 (Ethylenes); 0 (Gibberellins) |
| Entry Date(s): | Date Created: 20220112 Date Completed: 20220405 Latest Revision: 20230112 |
| Update Code: | 20260130 |
| PubMed Central ID: | PMC8972239 |
| DOI: | 10.1093/plcell/koac008 |
| PMID: | 35021223 |
| Database: | MEDLINE |
Journal Article; Research Support, Non-U.S. Gov't