Gibberellin stimulates regrowth after defoliation of sheepgrass (Leymus chinensis) by regulating expression of fructan-related genes

doi:10.1007/s10265-016-0832-1

	Gibberellin stimulates regrowth after defoliation of sheepgrass (Leymus chinensis) by regulating expression of fructan-related genes
	Cai, Yueyue ; Shao, Linhui 1; Li, Xiuqing 2; Liu, Gongshe; Chen, Shuangyan
	2016
发表期刊	JOURNAL OF PLANT RESEARCH
ISSN	0918-9440
卷号	129 期号:5 页码:935-944
摘要	Gibberellins (GAs) affect forage growth and development; however, it is largely unknown how GAs regulate the metabolism of fructan (an important polysaccharide reserve in many cereals) and the regrowth of forage plants after defoliation. To explore the mechanism of the responses of defoliated sheepgrass [Leymus chinensis (Trin.) Tzvel] to GA, we sprayed defoliated sheepgrass with GA(3) and/or paclobutrazol (PAC; an inhibitor of GA biosynthesis) and analyzed the growth characteristics, carbohydrate contents, and transcript levels of genes related to GA metabolism, GA signal transduction, and fructan metabolism. The results showed that spraying exogenous GA(3) onto defoliated sheepgrass promoted leaf and internode elongation, while spraying with PAC inhibited leaf and internode elongation, compared with the control. Spraying GA(3) onto defoliated sheepgrass also altered the fructan content by extending the period of fructan utilization. At the transcriptional level, exogenous GA(3) increased the transcript levels of genes related to GA metabolism in the sheath. Taken together, our results suggest that exogenous GA(3) stimulates the regrowth of defoliated sheepgrass regrowth by regulating GA and fructan-related genes, and by promoting endogenous GA synthesis, fructan metabolism, and signaling.
关键词	Leymus chinensis Defoliation Gibberellin Fructan Regrowth
学科领域	Plant Sciences
DOI	10.1007/s10265-016-0832-1
收录类别	SCI
语种	英语
WOS关键词	LOLIUM-PERENNE ; PLANTS ; SUCROSE ; GROWTH ; LIGHT ; L. ; ARABIDOPSIS ; METABOLISM ; TRANSPORT ; PROTEINS
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000381379700014
出版者	SPRINGER JAPAN KK
文献子类	Article
出版地	TOKYO
EISSN	1618-0860
资助机构	National Basic Research Program of China (973)National Basic Research Program of China [2014CB138704] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31470411] ; National High Technology Research and Development Program of China (863)National High Technology Research and Development Program of China [2011AA100209]
作者邮箱	liugs@ibcas.ac.cn ; sychen@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/2S10CLM1/25258
专题	中科院北方资源植物重点实验室
作者单位	1.Chinese Acad Sci, Inst Bot, Key Lab Plant Resources, Beijing 100093, Peoples R China 2.Chinese Acad Agr Sci, Inst Anim Sci, Beijing 100193, Peoples R China 3.Agr & Agri Food Canada, Potato Res Ctr, Mol Genet Lab, 850 Lincoln Rd,POB 20280, Fredericton, NB E3B 4Z7, Canada
推荐引用方式 GB/T 7714	Cai, Yueyue,Shao, Linhui,Li, Xiuqing,et al. Gibberellin stimulates regrowth after defoliation of sheepgrass (Leymus chinensis) by regulating expression of fructan-related genes[J]. JOURNAL OF PLANT RESEARCH,2016,129(5):935-944.
APA	Cai, Yueyue,Shao, Linhui,Li, Xiuqing,Liu, Gongshe,&Chen, Shuangyan.(2016).Gibberellin stimulates regrowth after defoliation of sheepgrass (Leymus chinensis) by regulating expression of fructan-related genes.JOURNAL OF PLANT RESEARCH,129(5),935-944.
MLA	Cai, Yueyue,et al."Gibberellin stimulates regrowth after defoliation of sheepgrass (Leymus chinensis) by regulating expression of fructan-related genes".JOURNAL OF PLANT RESEARCH 129.5(2016):935-944.

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