Lipid turnover during senescence

doi:10.1016/j.plantsci.2013.01.004

	Lipid turnover during senescence
	Troncoso-Ponce, Manuel A.; Cao, Xia ; Yang, Zhenle 1; Ohlrogge, John B.
	2013
发表期刊	PLANT SCIENCE
ISSN	0168-9452
卷号	205 页码:13-19
摘要	Rapid turnover of stored triacylglycerol occurs after seed germination, releasing fatty acids that provide carbon and energy for seedling establishment. Glycerolipid and fatty acid turnover that occurs at other times in the plant life cycle, including senescence is less studied. Although the entire pathway of beta-oxidation is induced during senescence, Arabidopsis leaf fatty acids turnover at rates 50 fold lower than in seedlings. Major unknowns in lipid turnover include the identity of lipases responsible for degradation of the wide diversity of galactolipid, phospholipid, and other lipid class structures. Also unknown is the relative flux of the acetyl-CoA product of beta-oxidation into alternative metabolic pathways. We present an overview of senescence-related glycerolipid turnover and discuss its function(s) and speculate about how it might be controlled to increase the energy density and nutritional content of crops. To better understand regulation of lipid turnover, we developed a database that compiles and plots transcript expression of lipid-related genes during natural leaf senescence of Arabidopsis. The database allowed identification of coordinated patterns of down-regulation of lipid biosynthesis genes.and the contrasting groups of genes that increase, including 68 putative lipases. (C) 2013 Published by Elsevier Ireland Ltd.
关键词	Triacylglycerol Biofuel beta-Oxidation Energy density Lipases
学科领域	Biochemistry & Molecular Biology ; Plant Sciences
DOI	10.1016/j.plantsci.2013.01.004
收录类别	SCI
语种	英语
WOS关键词	INDUCED LEAF SENESCENCE ; ARABIDOPSIS-THALIANA ; BETA-OXIDATION ; GENE-EXPRESSION ; DIACYLGLYCEROL ACYLTRANSFERASE ; TRIACYLGLYCEROL LIPASE ; MOLECULAR-BIOLOGY ; ACYL HYDROLASE ; ACID ; IDENTIFICATION
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000317164800003
出版者	ELSEVIER IRELAND LTD
文献子类	Review
出版地	CLARE
资助机构	Department of Energy-Great Lakes Bioenergy Research Center(United States Department of Energy (DOE))
作者邮箱	Yang, Zhenle/AAF-4745-2020 ; Troncoso-Ponce, Manuel Adrián/M-8194-2013
作品OA属性	hybrid
引用统计	被引频次：123[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/2S10CLM1/28152
专题	中科院北方资源植物重点实验室
作者单位	1.[Troncoso-Ponce, Manuel A.] CSIC, Inst Grasa, Seville 41012, Spain 2.Chinese Acad Sci, Key Lab Plant Resource Res & Dev, Inst Bot, Beijing 100093, Peoples R China 3.Cao, Xia; Ohlrogge, John B.] Michigan State Univ, Dept Plant Biol, E Lansing, MI 48824 USA
推荐引用方式 GB/T 7714	Troncoso-Ponce, Manuel A.,Cao, Xia,Yang, Zhenle,et al. Lipid turnover during senescence[J]. PLANT SCIENCE,2013,205:13-19.
APA	Troncoso-Ponce, Manuel A.,Cao, Xia,Yang, Zhenle,&Ohlrogge, John B..(2013).Lipid turnover during senescence.PLANT SCIENCE,205,13-19.
MLA	Troncoso-Ponce, Manuel A.,et al."Lipid turnover during senescence".PLANT SCIENCE 205(2013):13-19.

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