| Inducer of CBF Expression1 (ICE1) Interacts With WRKY46 to Modulate Salicylic Acid-Induced Leaf Senescence in Arabidopsis | |
Yang, Yongping1,2 ; Wu, Kongfen2; Yu, Diqiu2; Han, Xiao; Jiang, Yanjuan2
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| 2025 | |
| Source Publication | PLANT CELL AND ENVIRONMENT
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| ISSN | 0140-7791 |
| Issue | xPages:- |
| Abstract | Leaf senescence is triggered by various endogenous signals and exogenous cues. The plant hormone salicylic acid (SA) is a key signaling molecule that induces leaf senescence, but the underlying mechanism has not been fully clarified. Here, we found that INDUCER OF CBF EXPRESSION1 (ICE1) negatively regulates SA-induced leaf senescence in Arabidopsis. Upon treatment with SA, the ice1-2 mutant displayed an accelerated-leaf senescence phenotype compared with that of the wild type (Col-0), including severe leaf yellowing, lower chlorophyll content, and higher expression levels of senescence-associated genes, whereas ICE1-overexpressing plants exhibited delayed leaf senescence. ICE1 interacts with WRKY46, a positive regulator of SA-induced leaf senescence, to suppress its ability to activate WRKY6 expression. Phenotypic assays indicated that the accelerated-leaf senescence of ice1-2 was largely recovered by wrky46, indicating that ICE1 functions genetically upstream of WRKY46 during SA-induced leaf senescence. Further analyses suggested that the accelerated-leaf senescence phenotype of ice1-2 is dependent on WRKY6. Collectively, our results demonstrate the negative regulatory role of ICE1 in SA-induced leaf senescence. Given the importance of SA in leaf senescence, the discovery of the role of ICE1 reveals new details of how the onset of senescence is regulated. |
| Keyword | Arabidopsis inducer of CBF expression1 (ICE1) SA-induced leaf senescence salicylic acid (SA) WRKY46 WRKY6 |
| Subject Area | Plant Sciences |
| DOI | 10.1111/pce.15593 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:001480793400001 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | https://ir.xtbg.ac.cn/handle/353005/14656 |
| 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, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.Yunnan Univ, Sch Life Sci, State Key Lab Conservat & Utilizat Bioresources Yu, Kunming, Peoples R China |
| Recommended Citation GB/T 7714 | Yang, Yongping,Wu, Kongfen,Yu, Diqiu,et al. Inducer of CBF Expression1 (ICE1) Interacts With WRKY46 to Modulate Salicylic Acid-Induced Leaf Senescence in Arabidopsis[J]. PLANT CELL AND ENVIRONMENT,2025(x):-. |
| APA | Yang, Yongping,Wu, Kongfen,Yu, Diqiu,Han, Xiao,&Jiang, Yanjuan.(2025).Inducer of CBF Expression1 (ICE1) Interacts With WRKY46 to Modulate Salicylic Acid-Induced Leaf Senescence in Arabidopsis.PLANT CELL AND ENVIRONMENT(x),-. |
| MLA | Yang, Yongping,et al."Inducer of CBF Expression1 (ICE1) Interacts With WRKY46 to Modulate Salicylic Acid-Induced Leaf Senescence in Arabidopsis".PLANT CELL AND ENVIRONMENT .x(2025):-. |
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| Inducer of CBF Expre（2514KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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