海洋微藻对重金属镉胁迫的抗氧化应激适应性

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Abstract

Heavy metal cadmium(Cd)contamination along the coastal waters has become one of the most severe global environmental hazards.Cd may elicit oxidative stress,which results in consequent toxic effects in the organisms.Marine microalgae are the first primary producers in the marine ecosystem;how these aquatic organisms response to the Cd stress is a matter of ecosystem stability. During the long evolutional process of marine microalgae,they have formed some strategies to resist to Cd stress,among which the anti-oxidative stress response in marine microalgae is the key one in relieving or eliminating Cd toxicity.In this paper,Cd contamination in offshore environment is introduced,and the oxidative stress activated by Cd in marine microalgae is summarized.In addition,the anti-oxidative adaptation to Cd stress is reviewed.Several typical anti-oxidative enzymes and non-enzyme substances involved in the adaptation to Cd stress are also presented.Finally,the perspective on this research field is put forward.

Key words： marine microalgae cadmium anti-oxidative stress adaptation

Received: 25 October 2012

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	CAI Zhuo-ping
	DUAN Shun-shan
	ZHU Hong-hui

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CAI Zhuo-ping,DUAN Shun-shan,ZHU Hong-hui. On the anti-oxidantive adaptation of marine microalgae to stress of heavy metal cadmium[J]. , 2012, 31(5): 591-595.

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http://www.ecolsci.com/EN/ OR http://www.ecolsci.com/EN/Y2012/V31/I5/591

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