兰州大学机构库
Jasmonates regulate apical hook development by repressing brassinosteroid biosynthesis and signaling
Zhang, Jingjie1,2; Chen, Weiyue1; Li, Xiaopeng1; Shi, Hongyong1; Lv, Minghui1; He, Liming2; Bai, Wenhua2; Cheng, Shujing3; Chu, Jinfang3,4; He, K(何凯)2; Gou, XP(苟小平)2; Li, J(黎家)1,2
2023-09-22
Online publication date2023-07
Source PublicationPLANT PHYSIOLOGY   Impact Factor & Quartile
ISSN0032-0889 ; 1532-2548
Volume193Issue:2Pages:1561-1579
page numbers19
AbstractAn apical hook is a special structure formed during skotomorphogenesis in dicotyledonous plant species. It is critical for protecting the shoot apical meristem from mechanical damage during seed germination and hypocotyl elongation in soil. Brassinosteroid (BR) and jasmonate (JA) phytohormones antagonistically regulate apical hook formation. However, the interrelationship between BRs and JAs in this process has not been well elucidated. Here, we reveal that JAs repress BRs to regulate apical hook development in Arabidopsis (Arabidopsis thaliana). Exogenous application of methyl jasmonate (MeJA) repressed the expression of the rate-limiting BR biosynthetic gene DWARF4 (DWF4) in a process relying on 3 key JA-dependent transcription factors, MYC2, MYC3, and MYC4. We demonstrated that MYC2 interacts with the critical BR-activated transcription factor BRASSINAZOLE RESISTANT 1 (BZR1), disrupting the association of BZR1 with its partner transcription factors, such as those of the PHYTOCHROME INTERACTING FACTOR (PIF) family and downregulating the expression of their target genes, such as WAVY ROOT GROWTH 2 (WAG2), encoding a protein kinase essential for apical hook development. Our results indicate that JAs not only repress the expression of BR biosynthetic gene DWF4 but, more importantly, attenuate BR signaling by inhibiting the transcriptional activation of BZR1 by MYC2 during apical hook development. Jasmonates attenuate brassinosteroid signaling during apical hook development mainly via disrupting the interaction between BRASSINAZOLE RESISTANT 1 (BZR1) and its partner transcription factors.
PublisherOXFORD UNIV PRESS INC
DOI10.1093/plphys/kiad399
Indexed BySCIE
Language英语
WOS Research AreaPlant Sciences
WOS SubjectPlant Sciences
WOS IDWOS:001031492300001
Original Document TypeArticle
PMID 37467431
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttps://ir.lzu.edu.cn/handle/262010/568669
Collection兰州大学
生命科学学院
Corresponding AuthorLi, Jia
Affiliation
1.Guangzhou Univ, Sch Life Sci, Guangdong Prov Key Lab Plant Adaptat & Mol Design, Guangzhou 510006, Peoples R China;
2.Lanzhou Univ, Sch Life Sci, Key Lab Cell Act & Stress Adaptat, Minist Educ, Lanzhou 730000, Peoples R China;
3.Chinese Acad Sci, Inst Genet & Dev Biol, Natl Ctr Plant Gene Res Beijing, Beijing 100101, Peoples R China;
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
First Author AffilicationSchool of Life Sciences
Corresponding Author AffilicationSchool of Life Sciences
Recommended Citation
GB/T 7714
Zhang, Jingjie,Chen, Weiyue,Li, Xiaopeng,et al. Jasmonates regulate apical hook development by repressing brassinosteroid biosynthesis and signaling[J]. PLANT PHYSIOLOGY,2023,193(2):1561-1579.
APA Zhang, Jingjie.,Chen, Weiyue.,Li, Xiaopeng.,Shi, Hongyong.,Lv, Minghui.,...&Li, Jia.(2023).Jasmonates regulate apical hook development by repressing brassinosteroid biosynthesis and signaling.PLANT PHYSIOLOGY,193(2),1561-1579.
MLA Zhang, Jingjie,et al."Jasmonates regulate apical hook development by repressing brassinosteroid biosynthesis and signaling".PLANT PHYSIOLOGY 193.2(2023):1561-1579.
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