On the role of physiological substances, abscisic acid and its biosynthetic genes in seed maturation and dormancy of tree peony (Paeonia ostii 'Feng Dan')

doi:10.1016/j.scienta.2014.11.021

CORC > 中国农业科学院 > 蔬菜花卉研究所

	On the role of physiological substances, abscisic acid and its biosynthetic genes in seed maturation and dormancy of tree peony (Paeonia ostii 'Feng Dan')
	Xue, Jingqi ; Wang, Shunli ; Zhang, Ping ; Zhu, Fuyong ; Ren, Xiuxia ; Liu, Chuanjiao ; Zhang, Xiuxin 1
刊名	SCIENTIA HORTICULTURAE
	2015
卷号	182 页码:92-101
关键词	Tree peony (Paeonia ostii) Soluble sugar Starch Soluble protein Rooting rate ABA biosynthesis
ISSN号	0304-4238
DOI	10.1016/j.scienta.2014.11.021
通讯作者	Xue, Jingqi
英文摘要	The seeds of tree peony have a strict dormancy characteristic, which seriously affects seed germination rate and seedling emergence uniformity. Abscisic acid (ABA) is one of the most important plant hormones regulating seed maturation and dormancy. In this study, the seeds of tree peony (Paeonia ostii 'Feng Dan') were collected at different days after pollination (DAP), and the morphological, physiological and hormonal changes as well as five ABA biosynthetic genes expression were determined in seeds. The results indicate that the soluble sugar, starch and soluble protein contents as well as rooting rate were increased to different degrees; whereas, ABA content increased in the early and middle stages and then decreased later. At transcriptional levels, PoNCED1 and PoZEP1 probably together have a rate-limiting function in ABA biosynthesis with a division of roles, and PoSDR1 may induce substantial ABA biosynthesis in the middle and late development stages; furthermore, PoCHY1 should have multiple functions and PoAAO1 acts as a drought induced gene. This is the first report of ABA biosynthesis in the seeds of tree peony, and it will enable the role of ABA in seed dormancy and germination to be better understood. Furthermore, it may offer help by enhancing tree peony breeding efficiency. (C) 2014 Elsevier B.V. All rights reserved.
学科主题	Horticulture
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000348261500013
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/100929]
专题	蔬菜花卉研究所
作者单位	1.Minist Agr, Natl Ctr Flower Improvement, Beijing, Peoples R China 2.Minist Agr, Key Lab Biol & Genet Improvement Hort Crops, Beijing, Peoples R China 3.Chinese Acad Agr Sci, Inst Vegetables & Flowers, Beijing 100081, Peoples R China
推荐引用方式 GB/T 7714	Xue, Jingqi,Wang, Shunli,Zhang, Ping,et al. On the role of physiological substances, abscisic acid and its biosynthetic genes in seed maturation and dormancy of tree peony (Paeonia ostii 'Feng Dan')[J]. SCIENTIA HORTICULTURAE,2015,182:92-101.
APA	Xue, Jingqi.,Wang, Shunli.,Zhang, Ping.,Zhu, Fuyong.,Ren, Xiuxia.,...&Zhang, Xiuxin.(2015).On the role of physiological substances, abscisic acid and its biosynthetic genes in seed maturation and dormancy of tree peony (Paeonia ostii 'Feng Dan').SCIENTIA HORTICULTURAE,182,92-101.
MLA	Xue, Jingqi,et al."On the role of physiological substances, abscisic acid and its biosynthetic genes in seed maturation and dormancy of tree peony (Paeonia ostii 'Feng Dan')".SCIENTIA HORTICULTURAE 182(2015):92-101.