A new loss-of-function allele 28y reveals a role of ARGONAUTE1 in limiting asymmetric division of stomatal lineage ground cell

doi:10.1111/jipb.12154

	A new loss-of-function allele 28y reveals a role of ARGONAUTE1 in limiting asymmetric division of stomatal lineage ground cell
	Yang, Kezhen; Jiang, Min; Le, Jie
	2014
发表期刊	JOURNAL OF INTEGRATIVE PLANT BIOLOGY
ISSN	1672-9072
卷号	56 期号:6 页码:539-549
摘要	In Arabidopsis thaliana L., stomata are produced through a series of divisions including asymmetric and symmetric divisions. Asymmetric entry division of meristemoid mother cell produces two daughter cells, the smaller meristemoid and the larger sister cell, a stomatal lineage ground cell (SLGC). Stomatal lineage ground cells can differentiate into epidermal pavement cells but have the potential to divide asymmetrically, spacing divisions, to create satellite meristemoids. Peptide ligands and TOO MANY MOUTHS (TMM) and ERECTA family receptors regulate the initiation of stomatal lineages, activity, and orientation of spacing divisions. Here, we reported that a natural mutant 28y displayed an increased stomatal density and index. Using map-based cloning, we identified mutation in ARGONAUTE1 (AGO1) as the cause of 28y phenotypes. Time-lapse tracing of stomatal lineage cells reveals that stomatal overproduction in 28y is caused by the excessive asymmetric spacing division of SLGCs. Further genetic results demonstrated that AGO1 acts downstream of TMM and negatively regulates the SPCH transcripts, but in a brassinosteroid-independent manner. Upregulation of AGAMOUS-LIKE16 (AGL16) in 28y mutants suggests that AGO1 is required to restrict AGL16-mediated stomatal spacing divisions, an miRNA pathway in addition to ligand-receptor signaling modules.
关键词	Arabidopsis ARGONAUTE1 cell division stomatal development
学科领域	Biochemistry & Molecular Biology ; Plant Sciences
DOI	10.1111/jipb.12154
收录类别	SCI
语种	英语
WOS关键词	MEDIATED REGULATION ; PLANT ; MOUTHS ; TOO ; DIFFERENTIATION ; INITIATION ; PATHWAY ; GENES ; AGO1 ; ACTS
WOS研究方向	Biochemistry & Molecular Biology ; Plant Sciences
WOS记录号	WOS:000337691800003
出版者	WILEY
文献子类	Article
出版地	HOBOKEN
EISSN	1744-7909
资助机构	National Natural Science Foundation of China [30971652, 31271463, 31071198] ; Hundred Talents Program ; Chinese Academy of Sciences [KSCX2-YW-N-073]
作者邮箱	lejie@ibcas.ac.cn
引用统计	被引频次：14[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/27242
专题	中科院植物分子生理学重点实验室
作者单位	Chinese Acad Sci, Inst Bot, Key Lab Plant Mol Physiol, Beijing 100093, Peoples R China
推荐引用方式 GB/T 7714	Yang, Kezhen,Jiang, Min,Le, Jie. A new loss-of-function allele 28y reveals a role of ARGONAUTE1 in limiting asymmetric division of stomatal lineage ground cell[J]. JOURNAL OF INTEGRATIVE PLANT BIOLOGY,2014,56(6):539-549.
APA	Yang, Kezhen,Jiang, Min,&Le, Jie.(2014).A new loss-of-function allele 28y reveals a role of ARGONAUTE1 in limiting asymmetric division of stomatal lineage ground cell.JOURNAL OF INTEGRATIVE PLANT BIOLOGY,56(6),539-549.
MLA	Yang, Kezhen,et al."A new loss-of-function allele 28y reveals a role of ARGONAUTE1 in limiting asymmetric division of stomatal lineage ground cell".JOURNAL OF INTEGRATIVE PLANT BIOLOGY 56.6(2014):539-549.

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