Anisotropic cell growth at the leaf base promotes age-related changes in leaf shape in Arabidopsis thaliana

doi:10.1093/plcell/koad031

	Anisotropic cell growth at the leaf base promotes age-related changes in leaf shape in Arabidopsis thaliana
	Tang, Hong-Bo 1,2; Wang, Juan 3; Wang, Long 1; Shang, Guan-Dong 1,2; Xu, Zhou-Geng 1,2; Mai, Yan-Xia 4; Liu, Ye-Tong 1,5; Zhang, Tian-Qi 1; Wang, Jia-Wei1,6
	2023-02-01
发表期刊	PLANT CELL
ISSN	1040-4651
EISSN	1532-298X
发表状态	已发表
DOI	10.1093/plcell/koad031
摘要	["The coordination between longitudinal cell expansion and a prolonged cell proliferation phase at the base of the leaf blade determines adult leaf shape in Arabidopsis.","Plants undergo extended morphogenesis. The shoot apical meristem (SAM) allows for reiterative development and the formation of new structures throughout the life of the plant. Intriguingly, the SAM produces morphologically different leaves in an age-dependent manner, a phenomenon known as heteroblasty. In Arabidopsis thaliana, the SAM produces small orbicular leaves in the juvenile phase, but gives rise to large elliptical leaves in the adult phase. Previous studies have established that a developmental decline of microRNA156 (miR156) is necessary and sufficient to trigger this leaf shape switch, although the underlying mechanism is poorly understood. Here we show that the gradual increase in miR156-targeted SQUAMOSA PROMOTER BINDING PROTEIN-LIKE transcription factors with age promotes cell growth anisotropy in the abaxial epidermis at the base of the leaf blade, evident by the formation of elongated giant cells. Time-lapse imaging and developmental genetics further revealed that the establishment of adult leaf shape is tightly associated with the longitudinal cell expansion of giant cells, accompanied by a prolonged cell proliferation phase in their vicinity. Our results thus provide a plausible cellular mechanism for heteroblasty in Arabidopsis, and contribute to our understanding of anisotropic growth in plants."]
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收录类别	SCI
语种	英语
WOS研究方向	Biochemistry & Molecular Biology ; Plant Sciences ; Cell Biology
WOS类目	Biochemistry & Molecular Biology ; Plant Sciences ; Cell Biology
WOS记录号	WOS:000934547300001
出版者	OXFORD UNIV PRESS INC
引用统计
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/284215
专题	生命科学与技术学院_特聘教授组_王佳伟组
通讯作者	Wang, Jia-Wei
作者单位	1.CAS Ctr Excellence Mol Plant Sci CEMPS, Inst Plant Physiol & Ecol SIPPE, Natl Key Lab Plant Mol Genet NKLPMG, Shanghai 200032, Peoples R China 2.Univ Chinese Acad Sci UCAS, Shanghai 200032, Peoples R China 3.Inner Mongolia Univ Finance & Econ, Sch Stat & Math, Hohhot 010070, Peoples R China 4.Inst Plant Physiol & Ecol SIPPE, Core Facil Ctr CEMPS, Shanghai 200032, Peoples R China 5.Shanghai Normal Univ, Coll Life & Environm Sci, Shanghai 200234, Peoples R China 6.ShanghaiTech Univ, Sch Life Sci & Technol, Shanghai 201210, Peoples R China
通讯作者单位	生命科学与技术学院
推荐引用方式 GB/T 7714	Tang, Hong-Bo,Wang, Juan,Wang, Long,et al. Anisotropic cell growth at the leaf base promotes age-related changes in leaf shape in Arabidopsis thaliana[J]. PLANT CELL,2023.
APA	Tang, Hong-Bo.,Wang, Juan.,Wang, Long.,Shang, Guan-Dong.,Xu, Zhou-Geng.,...&Wang, Jia-Wei.(2023).Anisotropic cell growth at the leaf base promotes age-related changes in leaf shape in Arabidopsis thaliana.PLANT CELL.
MLA	Tang, Hong-Bo,et al."Anisotropic cell growth at the leaf base promotes age-related changes in leaf shape in Arabidopsis thaliana".PLANT CELL (2023).