Salt priming improved salt tolerance in sweet sorghum by enhancing osmotic resistance and reducing root Na+ uptake
文献类型：期刊论文
| 作者 | Yan, K ; Xu, HL; Cao, W; Chen, XB
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| 刊名 | ACTA PHYSIOLOGIAE PLANTARUM
 |
| 出版日期 | 2015-10 |
| 卷号 | 37期号:10页码:203 |
| 关键词 | Antioxidant Osmotic adjustment Photosynthesis Root Na+ extrusion Salt pretreatment |
| ISSN号 | 0137-5881 |
| 产权排序 | [Yan, Kun; Chen, Xiaobing] Chinese Acad Sci, Yantai Inst Coastal Zone Res YIC, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai, Peoples R China; [Yan, Kun; Chen, Xiaobing] YICCAS, Shandong Prov Key Lab Coastal Environm Proc, Yantai, Peoples R China; [Xu, Hualing] Dongying Acad Agr Sci, Dongying, Peoples R China; [Cao, Wei] Bur Educ & Sport, Yantai, Peoples R China |
| 通讯作者 | Yan, K (reprint author), Chinese Acad Sci, Yantai Inst Coastal Zone Res YIC, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai, Peoples R China. kyan@yic.ac.cn |
| 英文摘要 | This study attempted to explore how salt priming affected salt tolerance in sweet sorghum with emphasis on root Na+ uptake. After 10 days of pretreatment with 150 mM NaCl, plants were stressed with 300 mM NaCl. After salt stress for 7 days, dry matter of root and shoot decreased by 58.7 and 69.7 % in non-pretreated plants and by 37.9 and 41.3 % in pretreated plants. Consistently, pretreated plants maintained higher photosynthetic rate during salt stress, suggesting the enhanced tolerance by salt priming. Salt priming enhanced osmotic resistance, as proline and relative water contents in the leaf were higher in pretreated plants under salt stress. Salt priming alleviated salt-induced oxidative damage not by improving antioxidant protection due to lower increase in leaf malondialdehyde content and no extra induction on ascorbate peroxidase, catalase, superoxide dismutase, ascorbic acid and reduced glutathione in pretreated plants. After 7 days of salt stress, root Na+ efflux increased by 8.5- and 3.9-folds in pretreated and non-pretreated plants, suggesting that salt priming reduced root Na+ uptake, and then root and leaf Na+ accumulation were mitigated in pretreated plants. However, root Na+ extrusion became indifferent between pretreated and non-pretreated plants under salt stress after inhibiting plasma membrane (PM) Na+/H+ antiporter. Thus, the greater Na+ extrusion induced by salt priming had relation to PM Na+/H+ antiporter. Overall, salt priming improved salt tolerance in sweet sorghum by enhancing osmotic resistance and reducing root Na+ uptake. |
| 学科主题 | Plant Sciences |
| 研究领域[WOS] | Plant Sciences |
| 关键词[WOS] | RADIATA L. WILCZEK ; SALINITY TOLERANCE ; PHOTOSYSTEM-II ; LIPID-PEROXIDATION ; NACL PRETREATMENT ; PHYSIOLOGICAL ANALYSIS ; ANTIOXIDATIVE SYSTEM ; STRESS ; GENOTYPES ; PLANTS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000362291800009 |
| 源URL | [http://ir.yic.ac.cn/handle/133337/13810]  |
| 专题 | 烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室 烟台海岸带研究所_近岸生态与环境实验室 |
| 推荐引用方式 GB/T 7714 | Yan, K,Xu, HL,Cao, W,et al. Salt priming improved salt tolerance in sweet sorghum by enhancing osmotic resistance and reducing root Na+ uptake[J]. ACTA PHYSIOLOGIAE PLANTARUM,2015,37(10):203. |
| APA | Yan, K,Xu, HL,Cao, W,&Chen, XB.(2015).Salt priming improved salt tolerance in sweet sorghum by enhancing osmotic resistance and reducing root Na+ uptake.ACTA PHYSIOLOGIAE PLANTARUM,37(10),203. |
| MLA | Yan, K,et al."Salt priming improved salt tolerance in sweet sorghum by enhancing osmotic resistance and reducing root Na+ uptake".ACTA PHYSIOLOGIAE PLANTARUM 37.10(2015):203. |
入库方式： OAI收割
来源：烟台海岸带研究所
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