中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Ion adaptive mechanisms of Leymus chinensis to saline-alkali stress

文献类型:期刊论文

作者Ma, Hongyuan1,2; Liang, Zhengwei1,2; Yang, Haoyu1,2; Huang, Lihua1,2; Zhao, Mingli3
刊名JOURNAL OF FOOD AGRICULTURE & ENVIRONMENT
出版日期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
ISSN号1459-0255
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
文献子类Article
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.
学科主题Food Science & Technology
WOS关键词SALT TOLERANCE ; RESISTANT PLANTS ; GROWTH ; NACL ; SOIL ; NA+ ; GERMINATION ; TRANSPORT ; RESPONSES ; DROUGHT
WOS研究方向Food Science & Technology
语种英语
WOS记录号WOS:000297660700024
资助机构foundations of the Major State Basic Research Development Program of China (973 Program); National Natural Science of China[41000027]; [2007CB106800]
公开日期2012-03-06
源URL[http://ir.yic.ac.cn/handle/133337/5405]  
专题烟台海岸带研究所_中科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.

入库方式: OAI收割

来源:烟台海岸带研究所

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