Cytokinin signaling regulates pavement cell morphogenesis in Arabidopsis

doi:10.1038/cr.2012.146

CORC > 北京大学 > 生命科学学院

	Cytokinin signaling regulates pavement cell morphogenesis in Arabidopsis
	Li, Hongjiang ; Xu, Tongda ; Lin, Deshu ; Wen, Mingzhang ; Xie, Mingtang ; Duclercq, Jerome ; Bielach, Agnieszka ; Kim, Jungmook ; Reddy, G. Venugopala ; Zuo, Jianru ; Benkova, Eva ; Friml, Jiri ; Guo, Hongwei ; Yang, Zhenbiao
刊名	细胞研究英文版
	2013
关键词	Arabidopsis pavement cells cytokinin cell morphogenesis HISTIDINE PHOSPHOTRANSFER PROTEINS POLAR AUXIN TRANSPORT RESPONSE REGULATORS ROOT-MERISTEM NEGATIVE REGULATOR VASCULAR PATTERN TRANSDUCTION RECEPTOR GROWTH PHOSPHORYLATION
DOI	10.1038/cr.2012.146
英文摘要	The puzzle piece-shaped Arabidopsis leaf pavement cells (PCs) with interdigitated lobes and indents is a good model system to investigate the mechanisms that coordinate cell polarity and shape formation within a tissue. Auxin has been shown to coordinate the interdigitation by activating ROP GTPase-dependent signaling pathways. To identify additional components or mechanisms, we screened for mutants with abnormal PC morphogenesis and found that cytokinin signaling regulates the PC interdigitation pattern. Reduction in cytokinin accumulation and defects in cytokinin signaling (such as in ARR 7-over-expressing lines, the ahk3cre1 cytokinin receptor mutant, and the ahp12345 cytokinin signaling mutant) enhanced PC interdigitation, whereas over-production of cytokinin and over-activation of cytokinin signaling in an ARR20 over-expression line delayed or abolished PC interdigitation throughout the cotyledon. Genetic and biochemical analyses suggest that cytokinin signaling acts upstream of ROPs to suppress the formation of interdigitated pattern. Our results provide novel mechanistic understanding of the pathways controlling PC shape and uncover a new role for cytokinin signaling in cell morphogenesis.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000315426400015&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Cell Biology; SCI(E); 中国科技核心期刊(ISTIC); 中国科学引文数据库(CSCD); 11; ARTICLE; 2; 290-299; 23
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/320176]
专题	生命科学学院
推荐引用方式 GB/T 7714	Li, Hongjiang,Xu, Tongda,Lin, Deshu,et al. Cytokinin signaling regulates pavement cell morphogenesis in Arabidopsis[J]. 细胞研究英文版,2013.
APA	Li, Hongjiang.,Xu, Tongda.,Lin, Deshu.,Wen, Mingzhang.,Xie, Mingtang.,...&Yang, Zhenbiao.(2013).Cytokinin signaling regulates pavement cell morphogenesis in Arabidopsis.细胞研究英文版.
MLA	Li, Hongjiang,et al."Cytokinin signaling regulates pavement cell morphogenesis in Arabidopsis".细胞研究英文版 (2013).