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	The arabidopsis organ size related 2is involved in regulation of cell expansion during organ growth
	Qin,Zhixiang1; Zhang,Xiao1,2; Zhang,Xiaoran1; Feng,Guanping3; Hu,Yuxin1,4
刊名	Bmc plant biology
	2014-12-10
卷号	14期号:1
关键词	Arabidopsis Cell expansion Cell proliferation Osr Organ size
ISSN号	1471-2229
DOI	10.1186/s12870-014-0349-5
通讯作者	Hu,yuxin(huyuxin@ibcas.ac.cn)
英文摘要	Abstractbackgroundin plants, the growth of an aerial organ to its characteristic size relies on the coordination of cell proliferation and expansion. these two different processes occur successively during organ development, with a period of overlap. however, the mechanism underlying the cooperative and coordinative regulation of cell proliferation and expansion during organ growth remains poorly understood.resultsthis study characterized a new arabidopsis organ size related (osr) gene, osr2, which participates in the regulation of cell expansion process during organ growth. osr2 was expressed primarily in tissues or organs undergoing growth by cell expansion, and the ectopic expression of osr2 resulted in enlarged organs, primarily through enhancement of cell expansion. we further show that osr2 functions redundantly with argos-like (arl), another osr gene that regulates cell expansion in organ growth. moreover, morphological and cytological analysis of triple and quadruple osr mutants verified that the four osr members differentially but cooperatively participate in the regulation of cell proliferation and cell expansion and thus the final organ size.conclusionsour results reveal that osr2 is functional in the regulation of cell expansion during organ growth, which further implicates the involvement of osr members in the regulation of both cell proliferation and expansion and thus the final organ size. these findings, together with our previous studies, strongly suggest that osr-mediated organ growth may represent an evolutionary mechanism for the cooperative regulation of cell proliferation and expansion during plant organogenesis.
语种	英语
出版者	BioMed Central
WOS记录号	BMC:10.1186/S12870-014-0349-5
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2374311
专题	中国科学院大学
通讯作者	Hu,Yuxin
作者单位	1.Chinese Academy of Sciences; Key Laboratory of Plant Molecular Physiology, Institute of Botany 2.University of Chinese Academy of Sciences 3.Jinggangshan University; Key Laboratory for Biodiversity Science and Ecological Engineering, School of Life Sciences 4.National Center for Plant Gene Research
推荐引用方式 GB/T 7714	Qin,Zhixiang,Zhang,Xiao,Zhang,Xiaoran,et al. The arabidopsis organ size related 2is involved in regulation of cell expansion during organ growth[J]. Bmc plant biology,2014,14(1).
APA	Qin,Zhixiang,Zhang,Xiao,Zhang,Xiaoran,Feng,Guanping,&Hu,Yuxin.(2014).The arabidopsis organ size related 2is involved in regulation of cell expansion during organ growth.Bmc plant biology,14(1).
MLA	Qin,Zhixiang,et al."The arabidopsis organ size related 2is involved in regulation of cell expansion during organ growth".Bmc plant biology 14.1(2014).

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