| CO interacts with JAZ repressors and bHLH subgroup IIId factors to negatively regulate jasmonate signaling in Arabidopsis seedlings | |
Han, Xiao1; Kui, Mengyi1,2; Xu, Tingting1,2; Ye, Jingwen1,3; Du, Jiancan1; Yang, Milian1; Jiang, Yanjuan1; Hu, Yanru1
| |
| 2023 | |
| Source Publication | PLANT CELL
 |
| ISSN | 1040-4651 |
| Volume | 35Issue:2Pages:852-873 |
| Abstract | CONSTANS (CO) is a master flowering-time regulator that integrates photoperiodic and circadian signals in Arabidopsis thaliana. CO is expressed in multiple tissues, including young leaves and seedling roots, but little is known about the roles and underlying mechanisms of CO in mediating physiological responses other than flowering. Here, we show that CO expression is responsive to jasmonate. CO negatively modulated jasmonate-imposed root-growth inhibition and anthocyanin accumulation. Seedlings from co mutants were more sensitive to jasmonate, whereas overexpression of CO resulted in plants with reduced sensitivity to jasmonate. Moreover, CO mediated the diurnal gating of several jasmonate-responsive genes under long-day conditions. We demonstrate that CO interacts with JASMONATE ZIM-DOMAIN (JAZ) repressors of jasmonate signaling. Genetic analyses indicated that CO functions in a CORONATINE INSENSITIVE1 (COI1)-dependent manner to modulate jasmonate responses. Furthermore, CO physically associated with the basic helix-loop-helix (bHLH) subgroup IIId transcription factors bHLH3 and bHLH17. CO acted cooperatively with bHLH17 in suppressing jasmonate signaling, but JAZ proteins interfered with their transcriptional functions and physical interaction. Collectively, our results reveal the crucial regulatory effects of CO on mediating jasmonate responses and explain the mechanism by which CO works together with JAZ and bHLH subgroup IIId factors to fine-tune jasmonate signaling. |
| Subject Area | Biochemistry & Molecular Biology ; Plant Sciences ; Cell Biology |
| DOI | 10.1093/plcell/koac331 |
| Indexed By | SCI |
| WOS ID | WOS:000919000700001 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | https://ir.xtbg.ac.cn/handle/353005/13424 |
| Collection | 2012年后新成立研究组 |
| Affiliation | 1.Chinese Acad Sci, CAS Key Lab Trop Plant Resources & Sustainable Use, Xishuangbanna Trop Bot Garden, Kunming 650223, Yunnan, Peoples R China 2.Chinese Acad Sci, Ctr Econ Bot, Core Bot Gardens, Kunming 650223, Yunnan, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Univ Sci & Technol China, Sch Life Sci, Hefei 230027, Anhui, Peoples R China |
| Recommended Citation GB/T 7714 | Han, Xiao,Kui, Mengyi,Xu, Tingting,et al. CO interacts with JAZ repressors and bHLH subgroup IIId factors to negatively regulate jasmonate signaling in Arabidopsis seedlings[J]. PLANT CELL,2023,35(2):852-873. |
| APA | Han, Xiao.,Kui, Mengyi.,Xu, Tingting.,Ye, Jingwen.,Du, Jiancan.,...&Hu, Yanru.(2023).CO interacts with JAZ repressors and bHLH subgroup IIId factors to negatively regulate jasmonate signaling in Arabidopsis seedlings.PLANT CELL,35(2),852-873. |
| MLA | Han, Xiao,et al."CO interacts with JAZ repressors and bHLH subgroup IIId factors to negatively regulate jasmonate signaling in Arabidopsis seedlings".PLANT CELL 35.2(2023):852-873. |
| Files in This Item: | Download All | |||||
| File Name/Size | DocType | Version | Access | License | ||
| CO interacts with JA（2257KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment