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Mechanical regulation of organ asymmetry in leaves
Qi, Jiyan; Wu, Binbin; Feng, Shiliang; Lv SQ(吕守芹); Guan, Chunmei; Zhang, Xiao; Qiu, Dengli; Hu, Yingchun; Zhou, Yihua; Li, Chuanyou; Long M(龙勉); Jiao, Yuling; Jiao, YL (reprint author), Chinese Acad Sci, Inst Genet & Dev Biol, State Key Lab Plant Genom, Beijing 100101, Peoples R China.; Jiao, YL (reprint author), Natl Ctr Plant Gene Res, Beijing 100101, Peoples R China.; Long, M; Jiao, YL (reprint author), Univ Chinese Acad Sci, Beijing 100049, Peoples R China.; Long, M (reprint author), Chinese Acad Sci, Ctr Biomech & Bioengn, Key Lab Micrograv, Natl Micrograv Lab, Beijing 100190, Peoples R China.; Long, M (reprint author), Chinese Acad Sci, Beijing Key Lab Engn Construct & Mechanobiol, Inst Mech, Beijing 100190, Peoples R China.
Source PublicationNATURE PLANTS
2017-09-01
Volume3Issue:9Pages:724-733
ISSN2055-026X
Abstract

How appendages, such as plant leaves or animal limbs, develop asymmetric shapes remains a fundamental question in biology. Although ongoing research has revealed the genetic regulation of organ pattern formation, how gene activity ultimately directs organ shape remains unclear. Here, we show that leaf dorsoventral (adaxial-abaxial) polarity signals lead to mechanical heterogeneity of the cell wall, related to the methyl-esterification of cell-wall pectins in tomato and Arabidopsis. Numerical simulations predicate that mechanical heterogeneity is sufficient to produce the asymmetry seen in planar leaves. Experimental tests that alter pectin methyl-esterification, and therefore cell wall mechanical properties, support this model and lead to polar changes in gene expression, suggesting the existence of a feedback mechanism for mechanical signals in morphogenesis. Thus, mechanical heterogeneity within tissue may underlie organ shape asymmetry.

DOI10.1038/s41477-017-0008-6
URL查看原文
Indexed BySCI
Language英语
WOS IDWOS:000409382800008
WOS KeywordSHOOT APICAL MERISTEM ; PLANT-CELL GROWTH ; ARABIDOPSIS-THALIANA ; MONOCLONAL-ANTIBODIES ; HOMEOBOX GENES ; WALL ; POLARITY ; PATTERNS ; AUXIN ; MORPHOGENESIS
WOS Research AreaPlant Sciences
WOS SubjectPlant Sciences
Funding OrganizationNational Natural Science Foundation of China(31430010 ; National Basic Research Program of China (973 Program)(2014CB943500 ; National Key Research and Development Program of China(2016YFA0501601) ; National Program for Support of Top-Notch Young Professionals ; China Postdoctoral Science Foundation(2015M570171) ; State Key Laboratory of Plant Genomics ; 31627804) ; 2011CB710900)
DepartmentNML分子-细胞生物力学与空间生命科学
Classification一类
Ranking1
Citation statistics
Cited Times:19[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/70044
Collection国家微重力实验室
Corresponding AuthorJiao, YL (reprint author), Chinese Acad Sci, Inst Genet & Dev Biol, State Key Lab Plant Genom, Beijing 100101, Peoples R China.; Jiao, YL (reprint author), Natl Ctr Plant Gene Res, Beijing 100101, Peoples R China.; Long, M; Jiao, YL (reprint author), Univ Chinese Acad Sci, Beijing 100049, Peoples R China.; Long, M (reprint author), Chinese Acad Sci, Ctr Biomech & Bioengn, Key Lab Micrograv, Natl Micrograv Lab, Beijing 100190, Peoples R China.; Long, M (reprint author), Chinese Acad Sci, Beijing Key Lab Engn Construct & Mechanobiol, Inst Mech, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Qi, Jiyan,Wu, Binbin,Feng, Shiliang,et al. Mechanical regulation of organ asymmetry in leaves[J]. NATURE PLANTS,2017,3(9):724-733.
APA Qi, Jiyan.,Wu, Binbin.,Feng, Shiliang.,Lv SQ.,Guan, Chunmei.,...&Long, M .(2017).Mechanical regulation of organ asymmetry in leaves.NATURE PLANTS,3(9),724-733.
MLA Qi, Jiyan,et al."Mechanical regulation of organ asymmetry in leaves".NATURE PLANTS 3.9(2017):724-733.
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