Brassinosteroid Regulates Seed Size and Shape in Arabidopsis

doi:10.1104/pp.113.217703

	Brassinosteroid Regulates Seed Size and Shape in Arabidopsis
	Jiang, Wen-Bo ; Huang, Hui-Ya ; Hu, Yu-Wei ; Zhu, Sheng-Wei; Wang, Zhi-Yong ; Lin, Wen-Hui
	2013
发表期刊	PLANT PHYSIOLOGY
ISSN	0032-0889
卷号	162 期号:4 页码:1965-1977
摘要	Seed development is important for agriculture productivity. We demonstrate that brassinosteroid (BR) plays crucial roles in determining the size, mass, and shape of Arabidopsis (Arabidopsis thaliana) seeds. The seeds of the BR-deficient mutant de-etiolated2 (det2) are smaller and less elongated than those of wild-type plants due to a decreased seed cavity, reduced endosperm volume, and integument cell length. The det2 mutant also showed delay in embryo development, with reduction in both the size and number of embryo cells. Pollination of det2 flowers with wild-type pollen yielded seeds of normal size but still shortened shape, indicating that the BR produced by the zygotic embryo and endosperm is sufficient for increasing seed volume but not for seed elongation, which apparently requires BR produced from maternal tissues. BR activates expression of SHORT HYPOCOTYL UNDER BLUE1, MINISEED3, and HAIKU2, which are known positive regulators of seed size, but represses APETALA2 and AUXIN RESPONSE FACTOR2, which are negative regulators of seed size. These genes are bound in vivo by the BR-activated transcription factor BRASSINAZOLE-RESISTANT1 (BZR1), and they are known to influence specific processes of integument, endosperm, and embryo development. Our results demonstrate that BR regulates seed size and seed shape by transcriptionally modulating specific seed developmental pathways.
学科领域	Plant Sciences
DOI	10.1104/pp.113.217703
收录类别	SCI
语种	英语
WOS关键词	SIGNAL-TRANSDUCTION ; MUTANTS REVEAL ; PLANT-GROWTH ; GENE ; BIOSYNTHESIS ; CYTOCHROME-P450 ; ENDOSPERM ; RICE ; BZR1 ; EXPRESSION
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000322633400018
出版者	AMER SOC PLANT BIOLOGISTS
文献子类	Article
出版地	ROCKVILLE
资助机构	National Basic Research Program of China(National Basic Research Program of China) ; Ministry of Agriculture of China(Ministry of Agriculture & Rural Affairs) ; National Natural Science Foundation of China(National Natural Science Foundation of China (NSFC)) ; National High Technology Research and Development Program of China(National High Technology Research and Development Program of China)
作者邮箱	Jiang, Wenbo/AGX-5151-2022 ; Wang, Zhi-Yong/E-3810-2012
作品OA属性	Green Accepted
引用统计	被引频次：165[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/2S10CLM1/28102
专题	中科院植物分子生理学重点实验室
作者单位	1.[Jiang, Wen-Bo 2.Huang, Hui-Ya 3.Hu, Yu-Wei 4.Zhu, Sheng-Wei 5.Chinese Acad Sci, Inst Bot, Key Lab Plant Mol Physiol, Beijing 100093, Peoples R China 6.[Huang, Hui-Ya 7.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 8.Carnegie Inst Sci, Dept Plant Biol, Stanford, CA 94305 USA
推荐引用方式 GB/T 7714	Jiang, Wen-Bo,Huang, Hui-Ya,Hu, Yu-Wei,et al. Brassinosteroid Regulates Seed Size and Shape in Arabidopsis[J]. PLANT PHYSIOLOGY,2013,162(4):1965-1977.
APA	Jiang, Wen-Bo,Huang, Hui-Ya,Hu, Yu-Wei,Zhu, Sheng-Wei,Wang, Zhi-Yong,&Lin, Wen-Hui.(2013).Brassinosteroid Regulates Seed Size and Shape in Arabidopsis.PLANT PHYSIOLOGY,162(4),1965-1977.
MLA	Jiang, Wen-Bo,et al."Brassinosteroid Regulates Seed Size and Shape in Arabidopsis".PLANT PHYSIOLOGY 162.4(2013):1965-1977.

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