Salt Stress Encourages Proline Accumulation by Regulating Proline Biosynthesis and Degradation in Jerusalem Artichoke Plantlets

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	Salt Stress Encourages Proline Accumulation by Regulating Proline Biosynthesis and Degradation in Jerusalem Artichoke Plantlets
	Huang, Zengrong 1,2; Zhao, Long 1; Chen, Dandan 1; Liang, Mingxiang 1; Liu, Zhaopu 1; Shao, Hongbo 1,2,3; Long, Xiaohua 1
发表期刊	PLOS ONE
	2013-04-29
卷号	8 期号:4
英文摘要	Proline accumulation is an important mechanism for osmotic regulation under salt stress. In this study, we evaluated proline accumulation profiles in roots, stems and leaves of Jerusalem artichoke (Helianthus tuberosus L.) plantlets under NaCl stress. We also examined HtP5CS, HtOAT and HtPDH enzyme activities and gene expression patterns of putative HtP5CS1, HtP5CS2, HtOAT, HtPDH1, and HtPDH2 genes. The objective of our study was to characterize the proline regulation mechanisms of Jerusalem artichoke, a moderately salt tolerant species, under NaCl stress. Jerusalem artichoke plantlets were observed to accumulate proline in roots, stems and leaves during salt stress. HtP5CS enzyme activities were increased under NaCl stress, while HtOAT and HtPDH activities generally repressed. Transcript levels of HtP5CS2 increased while transcript levels of HtOAT, HtPDH1 and HtPDH2 generally decreased in response to NaCl stress. Our results supports that for Jerusalem artichoke, proline synthesis under salt stress is mainly through the Glu pathway, and HtP5CS2 is predominant in this process while HtOAT plays a less important role. Both HtPDH genes may function in proline degradation.
文章类型	Article
收录类别	SCI
语种	英语
关键词[WOS]	ORNITHINE-DELTA-AMINOTRANSFERASE ; HIGH-YIELDING GENOTYPES ; DELTA(1)-PYRROLINE-5-CARBOXYLATE SYNTHETASE ; TRANSCRIPTIONAL REGULATION ; ARABIDOPSIS-THALIANA ; GENE-EXPRESSION ; OSMOTIC-STRESS ; BRASSICA-NAPUS ; DROUGHT STRESS ; P5CS GENES
研究领域[WOS]	Science & Technology - Other Topics
WOS记录号	WOS:000321662800024
引用统计	被引频次：112[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/9030
专题	海岸带生物学与生物资源利用重点实验室_海岸带生物学与生物资源保护实验室
作者单位	1.Nanjing Agr Univ, Coll Resources & Environm Sci, Jiangsu Key Lab Marine Biol, Nanjing, Jiangsu, Peoples R China 2.Chinese Acad Sci, Yantai Inst Coastal Zone Res YIC, Key Lab Coastal Biol & Bioesources Utilizat, Yantai, Peoples R China 3.Qingdao Univ Sci & Technol, Inst Life Sci, Qingdao, Peoples R China
推荐引用方式 GB/T 7714	Huang, Zengrong,Zhao, Long,Chen, Dandan,et al. Salt Stress Encourages Proline Accumulation by Regulating Proline Biosynthesis and Degradation in Jerusalem Artichoke Plantlets[J]. PLOS ONE,2013,8(4).
APA	Huang, Zengrong.,Zhao, Long.,Chen, Dandan.,Liang, Mingxiang.,Liu, Zhaopu.,...&Long, Xiaohua.(2013).Salt Stress Encourages Proline Accumulation by Regulating Proline Biosynthesis and Degradation in Jerusalem Artichoke Plantlets.PLOS ONE,8(4).
MLA	Huang, Zengrong,et al."Salt Stress Encourages Proline Accumulation by Regulating Proline Biosynthesis and Degradation in Jerusalem Artichoke Plantlets".PLOS ONE 8.4(2013).