| A crosstalk between auxin and brassinosteroid regulates leaf shape by modulating growth anisotropy | |
Xiong, Yuanyuan1,2,3; Wu, Binbin1,2,3,8; Du, Fei1,2; Guo, Xiaolu4; Tian, Caihuan1,2; Hu JR(胡锦荣)5,6,7 ; Lv SQ(吕守芹)5,6,7; Long M(龙勉)5,6,7; Zhang, Lei4; Wang, Ying3; Jiao, Yuling1,2,3
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| Corresponding Author | Zhang, Lei([email protected]) ; Wang, Ying([email protected]) ; Jiao, Yuling([email protected]) |
| Source Publication | MOLECULAR PLANT
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| 2021-06-07 | |
| Volume | 14Issue:6Pages:949-962 |
| ISSN | 1674-2052 |
| Abstract | Leaf shape is highly variable within and among plant species, ranging from slender to oval shaped. This is largely determined by the proximodistal axis of growth. However, little is known about how proximal-distal growth is controlled to determine leaf shape. Here, we show that Arabidopsis leaf and sepal proximodistal growth is tuned by two phytohormones. Two class A AUXIN RESPONSE FACTORs (ARFs), ARF6 and ARF8, activate the transcription of DWARF4, which encodes a key brassinosteroid (BR) biosynthetic enzyme. At the cellular level, the phytohormones promote more directional cell expansion along the proximodistal axis, as well as final cell sizes. BRs promote the demethyl-esterification of cell wall pectins, leading to isotropic in-plane cell wall loosening. Notably, numerical simulation showed that isotropic cell wall loosening could lead to directional cell and organ growth along the proximodistal axis. Taken together, we show that auxin acts through biosynthesis of BRs to determine cell wall mechanics and directional cell growth to generate leaves of variable roundness. |
| Keyword | leaf shape proximodistal axis growth anisotropy mechanical signals AUXIN RESPONSE FACTOR brassinosteroids |
| DOI | 10.1016/j.molp.2021.03.011 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000661160400015 |
| WOS Keyword | ARABIDOPSIS-THALIANA ; EXPRESSION MAP ; GENE ; WALL ; INITIATION ; MUTANT ; BIOSYNTHESIS ; RESPONSES ; MERISTEM ; REVEALS |
| WOS Research Area | Biochemistry & Molecular Biology ; Plant Sciences |
| WOS Subject | Biochemistry & Molecular Biology ; Plant Sciences |
| Funding Project | National Natural Science Foundation of China (NSFC)[31825002] ; National Natural Science Foundation of China (NSFC)[31861143021] ; Key Research Project of the Frontier Science of CAS[ZDBS-LY-SM012] ; CAS[XDA24020203] ; National Key R&D Program of China[2019YFA0903902] ; NSFC[32000507] ; NSFC[31961133010] ; NSFC[31970805] ; NSFC[31871245] ; Youth Innovation Promotion Association of CAS[2017139] |
| Funding Organization | National Natural Science Foundation of China (NSFC) ; Key Research Project of the Frontier Science of CAS ; CAS ; National Key R&D Program of China ; NSFC ; Youth Innovation Promotion Association of CAS |
| Classification | 一类 |
| Ranking | 3+ |
| Contributor | Zhang, Lei ; Wang, Ying ; Jiao, Yuling |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/86923 |
| Collection | 微重力重点实验室 |
| Affiliation | 1.Chinese Acad Sci, Inst Genet & Dev Biol, Innovat Acad Seed Design, State Key Lab Plant Genom, Beijing 100101, Peoples R China; 2.Chinese Acad Sci, Inst Genet & Dev Biol, Innovat Acad Seed Design, Natl Ctr Plant Gene Res Beijing, Beijing 100101, Peoples R China; 3.Univ Chinese Acad Sci, Coll Life Sci, Beijing 100049, Peoples R China; 4.Peking Univ, Beijing Int Ctr Math Res, Beijing 100871, Peoples R China; 5.Chinese Acad Sci, Inst Mech, Ctr Biomech & Bioengn, Key Lab Micrograv,Natl Micrograv Lab, Beijing 100190, Peoples R China; 6.Chinese Acad Sci, Beijing Key Lab Engn Construct & Mechanobiol, Inst Mech, Beijing 100190, Peoples R China; 7.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China; 8.Baqiao Municipal Hlth Commiss, Xian 710038, Shaanxi, Peoples R China |
| Recommended Citation GB/T 7714 | Xiong, Yuanyuan,Wu, Binbin,Du, Fei,et al. A crosstalk between auxin and brassinosteroid regulates leaf shape by modulating growth anisotropy[J]. MOLECULAR PLANT,2021,14,6,:949-962.Rp_Au:Zhang, Lei, Wang, Ying, Jiao, Yuling |
| APA | Xiong, Yuanyuan.,Wu, Binbin.,Du, Fei.,Guo, Xiaolu.,Tian, Caihuan.,...&Jiao, Yuling.(2021).A crosstalk between auxin and brassinosteroid regulates leaf shape by modulating growth anisotropy.MOLECULAR PLANT,14(6),949-962. |
| MLA | Xiong, Yuanyuan,et al."A crosstalk between auxin and brassinosteroid regulates leaf shape by modulating growth anisotropy".MOLECULAR PLANT 14.6(2021):949-962. |
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| Jp2021F288.pdf（3984KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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