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Physiological Responses of Halophyte Suaeda salsa to Water Table and Salt Stresses in Coastal Wetland of Yellow River Delta
Guan, Bo1,2; Yu, Junbao1,3; Wang, Xuehong1,2; Fu, Yuqin1,2; Kan, Xingyan1,2; Lin, Qianxin4; Han, Guangxuan1; Lu, Zhaohua1,3
2011-12-01
发表期刊CLEAN-SOIL AIR WATER
ISSN1863-0650
卷号39期号:12页码:1029-1035
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
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.; 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.
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
关键词Antioxidant Ion Balance Salt Stress Suaeda Salsa Water Table
作者部门滨海湿地实验室 
学科领域Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources
项目资助者Chinese Academy of Sciences[kzcx2-yw-223]; The National Commonweal (Agricultural) research project[200903001]; CAS/SAFEA; National Natural Science Foundation of China[30770412, 40873062]; National Science and Technology Supporting Program of China[2006BAC01A13]; National Key Science and Technology item in "11th Five Year'' period[2006BAC01A13]; Chinese Academy of Sciences; Science and Technology Planning Program of Shandong Province[2008GG20005006, 2008GG3NS07005]
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收录类别SCI
关键词[WOS]ION ACCUMULATION ; GROWTH ; TOLERANCE ; SALINITY ; GERMINATION ; WHEAT ; PHOTOSYNTHESIS ; RESISTANCE ; PLANTS ; ROLES
文章类型Article
语种英语
WOS研究方向Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources
WOS记录号WOS:000297692000020
引用统计
被引频次:25[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/133337/5323
专题滨海湿地实验室
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
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GB/T 7714
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.
APA Guan, Bo.,Yu, Junbao.,Wang, Xuehong.,Fu, Yuqin.,Kan, Xingyan.,...&Lu, Zhaohua.(2011).Physiological Responses of Halophyte Suaeda salsa to Water Table and Salt Stresses in Coastal Wetland of Yellow River Delta.CLEAN-SOIL AIR WATER,39(12),1029-1035.
MLA Guan, Bo,et al."Physiological Responses of Halophyte Suaeda salsa to Water Table and Salt Stresses in Coastal Wetland of Yellow River Delta".CLEAN-SOIL AIR WATER 39.12(2011):1029-1035.
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