Phosphorylation of SPOROCYTELESS/NOZZLE by the MPK3/6 Kinase Is Required   for Anther Development

doi:10.1104/pp.16.01765

CORC > 北京大学 > 生命科学学院

	Phosphorylation of SPOROCYTELESS/NOZZLE by the MPK3/6 Kinase Is Required for Anther Development
	Zhao, Feng ; Zheng, Ya-Feng ; Zeng, Ting ; Sun, Rui ; Yang, Ji-Yuan ; Li, Yuan ; Ren, Dong-Tao ; Ma, Hong ; Xu, Zhi-Hong ; Bai, Shu-Nong
刊名	PLANT PHYSIOLOGY
	2017
关键词	ACTIVATED PROTEIN-KINASES ARABIDOPSIS OVULE DEVELOPMENT CUCUMBER FLOWER DEVELOPMENT RECEPTOR-LIKE KINASES GAMETOPHYTE DEVELOPMENT CELL FATES GERM-CELLS GENE EXPRESSION PLANTS
DOI	10.1104/pp.16.01765
英文摘要	Germ cells are indispensable carriers of genetic information from one generation to the next. In contrast to the well-understood process in animals, information on the mechanism of germ cell initiation in plants is very limited. SPOROCYTELESS/NOZZLE was previously identified as an essential regulator of diploid germ cell (archesporial cell) differentiation in the stamens and ovules of Arabidopsis (Arabidopsis thaliana). Although SPOROCYTELESS (SPL) transcription is activated by the floral organ identity regulator AGAMOUS and epigenetically regulated by SET DOMAIN GROUP2, little is known about the regulation of the SPL protein. Here, we report that the protein kinases MPK3 and MPK6 can both interact with SPL in vitro and in vivo and can phosphorylate the SPL protein in vitro. In addition, phosphorylation of the SPL protein by MPK3/6 is required for SPL function in the Arabidopsis anther, as measured by its effect on archesporial cell differentiation. We further demonstrate that phosphorylation enhances SPL protein stability. This work not only uncovers the importance of SPL phosphorylation for its regulatory role in Arabidopsis anther development, but also supports the hypothesis that the regulation of precise spatiotemporal patterning of germ cell initiation and that differentiation is achieved progressively through multiple levels of regulation, including transcriptional and posttranslational modification.; Ministry of Science and Technology of the People's Republic of China [2007CB108700]; National Natural Science Foundation of China [31170258]; SCI(E); ARTICLE; 4; 2265-2277; 173
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/474166]
专题	生命科学学院
推荐引用方式 GB/T 7714	Zhao, Feng,Zheng, Ya-Feng,Zeng, Ting,et al. Phosphorylation of SPOROCYTELESS/NOZZLE by the MPK3/6 Kinase Is Required for Anther Development[J]. PLANT PHYSIOLOGY,2017.
APA	Zhao, Feng.,Zheng, Ya-Feng.,Zeng, Ting.,Sun, Rui.,Yang, Ji-Yuan.,...&Bai, Shu-Nong.(2017).Phosphorylation of SPOROCYTELESS/NOZZLE by the MPK3/6 Kinase Is Required for Anther Development.PLANT PHYSIOLOGY.
MLA	Zhao, Feng,et al."Phosphorylation of SPOROCYTELESS/NOZZLE by the MPK3/6 Kinase Is Required for Anther Development".PLANT PHYSIOLOGY (2017).