Physiological and biochemical responses in the leaves of two mangrove plant seedlings (Kandelia candel and Bruguiera gymnorrhiza) exposed to multiple heavy metals
Huang, GY; Wang, YS; huang_gyh@sina.com
2010
发表期刊JOURNAL OF HAZARDOUS MATERIALS
ISSN0304-3894
卷号182期号:40546页码:848-854
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.
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
关键词Carotenoids Chlorophylls Glutathione Phytochelatins Proline
学科领域Engineering, Environmental ; Engineering, Civil ; Environmental Sciences
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收录类别sci
资助项目LED
WOS记录号WOS:000282240800111
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文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/6223
专题热带海洋环境国家重点实验室(LTO)
通讯作者huang_gyh@sina.com
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Huang, GY,Wang, YS,huang_gyh@sina.com. Physiological and biochemical responses in the leaves of two mangrove plant seedlings (Kandelia candel and Bruguiera gymnorrhiza) exposed to multiple heavy metals[J]. JOURNAL OF HAZARDOUS MATERIALS,2010,182(40546):848-854.
APA Huang, GY,Wang, YS,&huang_gyh@sina.com.(2010).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,182(40546),848-854.
MLA Huang, GY,et al."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 182.40546(2010):848-854.
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