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题名:
Physiological Responses of Halophyte Suaeda salsa to Water Table and Salt Stresses in Coastal Wetland of Yellow River Delta
作者: Guan, Bo(管博)1,2; Yu, Junbao1,3; Wang, Xuehong1,2; Fu, Yuqin1,2; Kan, Xingyan1,2; Lin, Qianxin4; Han Guangxuan(韩广轩)1; Lu, Zhaohua1,3
刊名: CLEAN-SOIL AIR WATER
ISSN号: 1863-0650
出版日期: 2011-12-01
卷号: 39, 期号:12, 页码:1029-1035
关键词: Antioxidant ; Ion balance ; Salt stress ; Suaeda salsa ; Water table
学科分类: Environmental Sciences & Ecology; Marine & Freshwater Biology; Water Resources
产权排序: [Guan, Bo; Yu, Junbao; Wang, Xuehong; Fu, Yuqin; Kan, Xingyan; Han, Guangxuan; Lu, Zhaohua] Chinese Acad Sci, Lab Coastal Wetland Ecol, Key Lab Coastal Zone Environm Proc, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China; [Guan, Bo; Wang, Xuehong; Fu, Yuqin; Kan, Xingyan] Chinese Acad Sci, Grad Univ, Beijing, Peoples R China; [Yu, Junbao; Lu, Zhaohua] Binzhou Univ, Res Ctr Ecoenvironm Sci Yellow River Delta, Binzhou, Peoples R China; [Lin, Qianxin] Louisiana State Univ, Dept Oceanog & Coastal Sci, Baton Rouge, LA 70803 USA
通讯作者: Yu, JB (reprint author), Chinese Acad Sci, Lab Coastal Wetland Ecol, Key Lab Coastal Zone Environm Proc, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China
作者部门: 滨海湿地实验室 
中文摘要: Soil salinity and waterlogging are two major environmental problems in estuarine wetlands. The objective of this study was to investigate the effects of salt stress, water table, and their combination on growth, chlorophyll content, antioxidant system, and ion accumulation in Suaeda salsa plant, which is the pioneer plant in coastal wetland of the Yellow River Delta (YRD). The results showed that plant height, number of branches, and biomass were significantly affected by water table and salt stress. With enhanced salt stress, the ratio of leaf to total biomass increased and the ratio of root to total biomass decreased. The contents of Chl-a, -b, Chl-a?+?b, and carotenoids (Car) decreased significantly with increasing soil salinity and the water table level. Salt stress enhanced the activity of superoxide dismutase (SOD) and catalase (CAT), but reduced the content of protein. With the lowering water table level, the activity of CAT and protein content increased, and activity of SOD decreased. Na+ and Cl- content were up-regulated with increasing salt stress (NaCl), whereas, the contents of other cations (K+, Ca2+, and Mg2+) and anions (SO(4)(2-) and NO(3)(-)) were decreased. In summary, the results indicated that the S. salsa plants could adapt to the adverse soil environments through modifying their growth and physiology status at the highly saline and intertidal zone, such as the YRD estuarine wetlands, and also could be used as a bio-reclamation plant to decline the high salt in saline soils.
英文摘要: Soil salinity and waterlogging are two major environmental problems in estuarine wetlands. The objective of this study was to investigate the effects of salt stress, water table, and their combination on growth, chlorophyll content, antioxidant system, and ion accumulation in Suaeda salsa plant, which is the pioneer plant in coastal wetland of the Yellow River Delta (YRD). The results showed that plant height, number of branches, and biomass were significantly affected by water table and salt stress. With enhanced salt stress, the ratio of leaf to total biomass increased and the ratio of root to total biomass decreased. The contents of Chl-a, -b, Chl-a?+?b, and carotenoids (Car) decreased significantly with increasing soil salinity and the water table level. Salt stress enhanced the activity of superoxide dismutase (SOD) and catalase (CAT), but reduced the content of protein. With the lowering water table level, the activity of CAT and protein content increased, and activity of SOD decreased. Na+ and Cl- content were up-regulated with increasing salt stress (NaCl), whereas, the contents of other cations (K+, Ca2+, and Mg2+) and anions (SO(4)(2-) and NO(3)(-)) were decreased. In summary, the results indicated that the S. salsa plants could adapt to the adverse soil environments through modifying their growth and physiology status at the highly saline and intertidal zone, such as the YRD estuarine wetlands, and also could be used as a bio-reclamation plant to decline the high salt in saline soils.
研究领域[WOS]: Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources
关键词[WOS]: ION ACCUMULATION ; GROWTH ; TOLERANCE ; SALINITY ; GERMINATION ; WHEAT ; PHOTOSYNTHESIS ; RESISTANCE ; PLANTS ; ROLES
文章类型: Article
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000297692000020
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.yic.ac.cn/handle/133337/5323
Appears in Collections:滨海湿地实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, Lab Coastal Wetland Ecol, Key Lab Coastal Zone Environm Proc, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing, Peoples R China
3.Binzhou Univ, Res Ctr Ecoenvironm Sci Yellow River Delta, Binzhou, Peoples R China
4.Louisiana State Univ, Dept Oceanog & Coastal Sci, Baton Rouge, LA 70803 USA

Recommended Citation:
Guan, Bo,Yu, Junbao,Wang, Xuehong,et al. Physiological Responses of Halophyte Suaeda salsa to Water Table and Salt Stresses in Coastal Wetland of Yellow River Delta[J]. CLEAN-SOIL AIR WATER,2011,39(12):1029-1035.
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