| Jasmonate signaling coordinates with the SOD7-KLU pathway to regulate seed size in Arabidopsis thaliana | |
Zhang, Juping1; Yao, Jian; He, Kunrong3; Yu, Chunlan; Du, Jie; Du, Jiancan; Fu, Qiantang; Yao, Ruifeng4,5; Howe, Gregg A.; Han, Xiao; Hu, Yanru4,5
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| 2025 | |
| Source Publication | PLANT CELL
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| ISSN | 1040-4651 |
| Volume | 37Issue:8Pages:- |
| Abstract | Seed size is crucial for crop yield and plant ecological fitness. The phytohormone jasmonate regulates Arabidopsis thaliana seed size, but the underlying molecular mechanisms remain elusive. Here, we established that CORONATINE INSENSITIVE1 (COI1)-mediated jasmonate signaling acts maternally to repress seed growth. Accordingly, jasmonate signaling suppresses the expression of KLUH (KLU), encoding an inducer of integument cell proliferation. KLU regulates the effects of COI1-mediated signaling on seed size. The JASMONATE ZIM-DOMAIN (JAZ) repressors of jasmonate signaling interact with SUPPRESSOR OF DA1-1 (SOD7) and DEVELOPMENT-RELATED PcG TARGET IN THE APEX4 (DPA4), two transcription factors that directly repress KLU. Overexpression of SOD7 largely rescues the seed size phenotype of coi1 mutants and JAZ1-overexpressing JAZ1-Delta Jas plants. Furthermore, SOD7 associates with MYC2 and MYC4, two master transcriptional regulators of jasmonate signaling. SOD7 and MYC2 synergistically decrease KLU transcription and inhibit seed growth, while JAZ1 interferes with their transcriptional activities and physical interaction. Notably, jasmonate signaling considerably impacts seed size under salinity stress, primarily through SOD7 and KLU. Collectively, our findings suggest that the JAZ repressors and MYC transcription factors of the jasmonate signaling pathway coordinate with the SOD7/DPA4-KLU pathway to incorporate jasmonate signals into seed development. The JAZ repressors and MYC transcription factors of jasmonate signaling coordinate with the transcription factors SOD7/DPA4-cytochrome P450 KLU pathway, thereby modulating seed development. |
| Keyword | MEDIATOR SUBUNIT MED25 BHLH TRANSCRIPTION FACTORS DOMAIN PROTEINS INTERACT OXIDE CYCLASE GENE ABSCISIC-ACID MATERNAL CONTROL CORONATINE INSENSITIVE1 TRICHOME INITIATION STAMEN DEVELOPMENT DEFENSE RESPONSES |
| Subject Area | Biochemistry & Molecular Biology ; Plant Sciences ; Cell Biology |
| DOI | 10.1093/plcell/koaf178 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:001548846200001 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | https://ir.xtbg.ac.cn/handle/353005/15689 |
| 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.Univ Chinese Acad Sci, Coll Life Sci, Beijing 100049, Peoples R China 3.Yao, Jian; Howe, Gregg A.] Michigan State Univ, Dept Energy, Plant Res Lab, E Lansing, MI 48824 USA 4.Nanjing Forestry Univ, Coinnovat Ctr Sustainable Forestry Southern China, State Key Lab Tree Genet & Breeding, Nanjing 210037, Peoples R China 5.Hunan Univ, Coll Biol, Hunan Prov Key Lab Plant Funct Genom & Dev Regulat, State Key Lab Chemo & Biosensing,Hunan Res Ctr Bas, Changsha 410082, Peoples R China 6.Yuelushan Lab, Changsha 410128, Peoples R China |
| Recommended Citation GB/T 7714 | Zhang, Juping,Yao, Jian,He, Kunrong,et al. Jasmonate signaling coordinates with the SOD7-KLU pathway to regulate seed size in Arabidopsis thaliana[J]. PLANT CELL,2025,37(8):-. |
| APA | Zhang, Juping.,Yao, Jian.,He, Kunrong.,Yu, Chunlan.,Du, Jie.,...&Hu, Yanru.(2025).Jasmonate signaling coordinates with the SOD7-KLU pathway to regulate seed size in Arabidopsis thaliana.PLANT CELL,37(8),-. |
| MLA | Zhang, Juping,et al."Jasmonate signaling coordinates with the SOD7-KLU pathway to regulate seed size in Arabidopsis thaliana".PLANT CELL 37.8(2025):-. |
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