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学科主题: Engineering, Environmental; Engineering, Civil; Environmental Sciences
题名: Physiological and biochemical responses in the leaves of two mangrove plant seedlings (Kandelia candel and Bruguiera gymnorrhiza) exposed to multiple heavy metals
作者: Huang, GY ; Wang, YS
通讯作者: huang_gyh@sina.com
关键词: Carotenoids ; Chlorophylls ; Glutathione ; Phytochelatins ; Proline
刊名: JOURNAL OF HAZARDOUS MATERIALS
发表日期: 2010
卷: 182, 期:40546, 页:848-854
收录类别: sci
部门归属: [Huang, Guo-Yong; Wang, You-Shao] Chinese Acad Sci, Key Lab Trop Marine Environm Dynam, S China Sea Inst Oceanol, Guangzhou 510301, Guangdong, Peoples R China; [Huang, Guo-Yong] Chinese Acad Sci, State Key Lab Organ Geochem, Guangzhou Inst Geochem, Guangzhou 510640, Peoples R China; [Huang, Guo-Yong] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
项目归属: LED
摘要: The accumulation of heavy metals and their effect on photosynthetic pigments, proline, glutathione (GSH) and phytochelatins (PCs-SH) were studied in the leaves of two mangrove plants seedlings (Kandelia candel and Bruguiera gymnorrhiza) grown for 30 days in the nutrient solution containing four different concentrations of Cd2+, Pb2+ and Hg2+ (T-1, T-2, T-3 and T-4). An increase in Cd. Pb and Hg content was found in the leaves of both species exposed to multiple heavy metal stress, whereas higher heavy metal levels (>T-1) led to a remarkable breakdown of chlorophyll in the leaves of both species. The content of proline, GSH and PCs-SH in the leaves of both species exhibited a significant increase in response to heavy metal stress, at least under most of experimental conditions. Increased contents of proline. GSH and PCs-SH in metal-treated plants suggest that metal tolerance in both K. candel and B. gymnorrhiza might be associated to the efficiency of these antioxidants. Moreover, proline, GSH and PCs-SH in K. candel may play more important role in ameliorating the effect of heavy metal toxicity than those in B. gymnorrhiza. (c) 2010 Elsevier B.V. All rights reserved.
原文出处: 查看原文
WOS记录号: WOS:000282240800111
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内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/6223
Appears in Collections:热带海洋环境动力实验室(LTO)_期刊论文

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Huang, GY; Wang, YS.Physiological and biochemical responses in the leaves of two mangrove plant seedlings (Kandelia candel and Bruguiera gymnorrhiza) exposed to multiple heavy metals,JOURNAL OF HAZARDOUS MATERIALS,2010,182(40546):848-854
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