Effect of heavy metal stress on antioxidative enzymes and lipid peroxidation in leaves and roots of two mangrove plant seedlings (Kandelia candel and Bruguiera gymnorrhiza)

CORC > 南海海洋研究所 > 中国科学院南海海洋研究所 > 中科院海洋生物资源可持续利用重点实验室

	Effect of heavy metal stress on antioxidative enzymes and lipid peroxidation in leaves and roots of two mangrove plant seedlings (Kandelia candel and Bruguiera gymnorrhiza)
	Zhang, FQ ; Wang, YS ; Lou, ZP ; Dong, JD
刊名	CHEMOSPHERE
	2007
卷号	67 期号:1 页码:44-50
关键词	heavy metal stress superoxide dismutase (SOD) catalase (CAT) peroxidase (POD) lead cadmium mercury mangrove pollution
ISSN号	0045-6535
通讯作者	zhangfengqin05@yahoo.com.cn
中文摘要	The effects of multiple heavy metal stress on the activity of antioxidative enzymes and lipid peroxidation were studied in leaves and roots of two mangrove plants, Kandelia candel and Bruguiera gymnorrhiza, grown under control (10 parts per thousand. NaCl nutrient solution) or five levels of multiple heavy metal stress (10 parts per thousand. NaCl nutrient solution containing different concentration of Pb2+ Cd2+, and Hg2+). Leaves and roots of control and heavy metal-stressed plants were harvested after two months. In leaves of heavy metal-stressed plants superoxide dismutase (SOD) and peroxidase (POD) activities fluctuated in different stress levels compared to the control, while catalase (CAT) activity increased with stress levels in K candel, but remained unchanged in leaves of B. gymnorrhiza. In comparison with the control, the dynamic tendency of SOD, CAT, and POD activities in roots of heavy metal-stressed plants all ascended, and then declined. The increase in enzyme activities demonstrated that K candel is more tolerant to heavy metals than B. gymnorrhiza. Lipid peroxidation was enhanced only in leaves of heavy metal-stressed R gymnorrhiza. These results indicate that in heavy-metal stress antioxidative activities may play an important role in K candel and B. gymnorrhiza and that cell membrane in leaves and roots of K candel have greater stability than those of R gymnorrhiza. For pollution monitoring purposes, POD activity in roots and leaves maybe serve as a biomarker of heavy metal stress in K candel, while lipid peroxidation maybe serve as biomarker in B. gymnorrhiza. (c) 2006 Elsevier Ltd. All rights reserved.
学科主题	Environmental Sciences
收录类别	SCI
原文出处	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000244636100006
公开日期	2011-07-03
内容类型	期刊论文
源URL	[http://ir.scsio.ac.cn/handle/344004/4926]
专题	南海海洋研究所_中科院海洋生物资源可持续利用重点实验室
推荐引用方式 GB/T 7714	Zhang, FQ,Wang, YS,Lou, ZP,et al. Effect of heavy metal stress on antioxidative enzymes and lipid peroxidation in leaves and roots of two mangrove plant seedlings (Kandelia candel and Bruguiera gymnorrhiza)[J]. CHEMOSPHERE,2007,67(1):44-50.
APA	Zhang, FQ,Wang, YS,Lou, ZP,&Dong, JD.(2007).Effect of heavy metal stress on antioxidative enzymes and lipid peroxidation in leaves and roots of two mangrove plant seedlings (Kandelia candel and Bruguiera gymnorrhiza).CHEMOSPHERE,67(1),44-50.
MLA	Zhang, FQ,et al."Effect of heavy metal stress on antioxidative enzymes and lipid peroxidation in leaves and roots of two mangrove plant seedlings (Kandelia candel and Bruguiera gymnorrhiza)".CHEMOSPHERE 67.1(2007):44-50.