| Ion adaptive mechanisms of Leymus chinensis to saline-alkali stress | |
| Ma, Hongyuan1,2; Liang, Zhengwei1,2; Yang, Haoyu1,2; Huang, Lihua1,2; Zhao, Mingli3 | |
| 发表期刊 | JOURNAL OF FOOD AGRICULTURE & ENVIRONMENT
 |
| ISSN | 1459-0255 |
| 2011-07-01 | |
| 卷号 | 9期号:3-4页码:688-692 |
| 关键词 | Leymus Chinensis Saline-alkali Soil Abiotic Stress Ion Transport Selective Adsorption |
| 产权排序 | [Ma, Hongyuan; Liang, Zhengwei; Yang, Haoyu; Huang, Lihua] Chinese Acad Sci, NE Inst Geog & Agr Ecol, Changchun 1300142, Jilin, Peoples R China; [Ma, Hongyuan; Liang, Zhengwei; Yang, Haoyu; Huang, Lihua] Daan Sod Land Expt Stn China, Daan 131317, Jilin, Peoples R China; [Zhao, Mingli] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Shandong, Peoples R China |
| 通讯作者 | Liang, ZW (reprint author), Chinese Acad Sci, NE Inst Geog & Agr Ecol, Changchun 1300142, Jilin, Peoples R China |
| 英文摘要 | Leymus chinensis is a saline-alkali tolerant grass of the Eurasian Steppe of great economic, ecological and nutritional importance. Mechanisms of ions (K(+), Na(+), Ca(2+)) adaptation to saline-alkali stresses were investigated in shoot, root and rhizome of the L. chinensis growing in five degrees of saline-alkali soils for 6 months. Results showed that with increasing soil saline-alkalinity, Na(+) in the shoots and rhizomes significantly increased while no obvious changes were observed in roots; K(+) in the three organs significantly decreased initially and then did not significantly change; Ca(2+) in the three organs did not significantly change. With increasing of soil saline-alkalinity, selective absorption of K(+) over Na(+) (SA(K,Na)) in the three organs increased and was particularly higher in roots and rhizomes. SA(Ca, Na) in these organs generally decreased but the selective transport ability of Ca(2+) (ST(Ca, Na)) increased. To conclude, low concentrations of Na(+) in the roots, strong selective uptake of K(+) and Ca(+) to maintain higher levels of K(+)/Na(+) and Ca(2+)/Na(+) ratios, and relatively high SA(K,Na) and ST(Ca, Na) were important adaptive mechanisms to saline-alkali stress in L. chinensis.; Leymus chinensis is a saline-alkali tolerant grass of the Eurasian Steppe of great economic, ecological and nutritional importance. Mechanisms of ions (K(+), Na(+), Ca(2+)) adaptation to saline-alkali stresses were investigated in shoot, root and rhizome of the L. chinensis growing in five degrees of saline-alkali soils for 6 months. Results showed that with increasing soil saline-alkalinity, Na(+) in the shoots and rhizomes significantly increased while no obvious changes were observed in roots; K(+) in the three organs significantly decreased initially and then did not significantly change; Ca(2+) in the three organs did not significantly change. With increasing of soil saline-alkalinity, selective absorption of K(+) over Na(+) (SA(K,Na)) in the three organs increased and was particularly higher in roots and rhizomes. SA(Ca, Na) in these organs generally decreased but the selective transport ability of Ca(2+) (ST(Ca, Na)) increased. To conclude, low concentrations of Na(+) in the roots, strong selective uptake of K(+) and Ca(+) to maintain higher levels of K(+)/Na(+) and Ca(2+)/Na(+) ratios, and relatively high SA(K,Na) and ST(Ca, Na) were important adaptive mechanisms to saline-alkali stress in L. chinensis. |
| 文章类型 | Article |
| 资助机构 | foundations of the Major State Basic Research Development Program of China (973 Program); National Natural Science of China[41000027]; [2007CB106800] |
| 收录类别 | SCI |
| 语种 | 英语 |
| 关键词[WOS] | SALT TOLERANCE ; RESISTANT PLANTS ; GROWTH ; NACL ; SOIL ; NA+ ; GERMINATION ; TRANSPORT ; RESPONSES ; DROUGHT |
| 研究领域[WOS] | Food Science & Technology |
| WOS记录号 | WOS:000297660700024 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.yic.ac.cn/handle/133337/5404 |
| 专题 | 中国科学院烟台海岸带研究所知识产出 |
| 作者单位 | 1.Chinese Acad Sci, NE Inst Geog & Agr Ecol, Changchun 1300142, Jilin, Peoples R China 2.Daan Sod Land Expt Stn China, Daan 131317, Jilin, Peoples R China 3.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Shandong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ma, Hongyuan,Liang, Zhengwei,Yang, Haoyu,et al. Ion adaptive mechanisms of Leymus chinensis to saline-alkali stress[J]. JOURNAL OF FOOD AGRICULTURE & ENVIRONMENT,2011,9(3-4):688-692. |
| APA | Ma, Hongyuan,Liang, Zhengwei,Yang, Haoyu,Huang, Lihua,&Zhao, Mingli.(2011).Ion adaptive mechanisms of Leymus chinensis to saline-alkali stress.JOURNAL OF FOOD AGRICULTURE & ENVIRONMENT,9(3-4),688-692. |
| MLA | Ma, Hongyuan,et al."Ion adaptive mechanisms of Leymus chinensis to saline-alkali stress".JOURNAL OF FOOD AGRICULTURE & ENVIRONMENT 9.3-4(2011):688-692. |
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