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	Stress tolerance and antioxidant enzymatic activities in the metabolisms of the reactive oxygen species in two intertidal red algae Grateloupia turuturu and Palmaria palmata
	Liu, Feng1,2; Pang, Shao Jun1
	2010
发表期刊	JOURNAL OF EXPERIMENTAL MARINE BIOLOGY AND ECOLOGY
卷号	382期号:2页码:82-87
文章类型	Article
摘要	This investigation was designed to compare the differential stress tolerance in young thalli of two similar intertidal red seaweeds, Grateloupia turuturu Yamada and Palmaria palmata Kuntze, and to identify whether the invasive alga G. turuturu was more stress tolerant than A palmata to cope with adverse environmental conditions. To do so, we measured the production of reactive oxygen caused by methyl viologen (MV) by assessing the oxidation of dichlorohydrofluorescein (DCFH) to dichlorofluorescein (DCF), the activities of reactive oxygen scavenging enzymes and the changes of the optimal fluorescence quantum yield (Fv/Fm) when the thalli of the two species were exposed to oxidative stresses caused by the addition of MV, H(2)O(2), 3 (3, 4-dichlorophenyl)-1,1-dimethyl urea (DCMU), heavy metal, changes of salinities, heat and freezing. Results demonstrated that the activities of superoxide dismutase (SOD) and peroxidase (POD) in G. turuturu were much higher than in P. palmata. Fv/Fm in G. turuturu was less sensitive than that in P. palmata to MV, H(2)O(2), DCMU, heavy metal, salinity and heat stress, indicating that G. turuturu could be better acclimatized to changing environments and thus had a higher threshold for oxidative stress than P. palmata. G. turuturu was shown to be more sensitive to freezing treatment (-20 degrees C), which explained why the appearance of G. turuturu was rarely reported in colder water environments. (C) 2009 Elsevier B.V. All rights reserved.
关键词	Grateloupia Turuturu Methyl Viologen Optimal Fluorescence Quantum Yield Oxidative Stress Palmaria Palmata Superoxide Dismutase
DOI	10.1016/j.jembe.2009.11.005
收录类别	SCI
语种	英语
WOS记录号	WOS:000274042200002
引用统计	被引频次：94[WOS]   [WOS记录]     [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/32777
专题	实验海洋生物学重点实验室
作者单位	1.Chinese Acad Sci, Inst Oceanol, Marine Biol Culture Collect Ctr, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
第一作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Liu, Feng,Pang, Shao Jun. Stress tolerance and antioxidant enzymatic activities in the metabolisms of the reactive oxygen species in two intertidal red algae Grateloupia turuturu and Palmaria palmata[J]. JOURNAL OF EXPERIMENTAL MARINE BIOLOGY AND ECOLOGY,2010,382(2):82-87.
APA	Liu, Feng,&Pang, Shao Jun.(2010).Stress tolerance and antioxidant enzymatic activities in the metabolisms of the reactive oxygen species in two intertidal red algae Grateloupia turuturu and Palmaria palmata.JOURNAL OF EXPERIMENTAL MARINE BIOLOGY AND ECOLOGY,382(2),82-87.
MLA	Liu, Feng,et al."Stress tolerance and antioxidant enzymatic activities in the metabolisms of the reactive oxygen species in two intertidal red algae Grateloupia turuturu and Palmaria palmata".JOURNAL OF EXPERIMENTAL MARINE BIOLOGY AND ECOLOGY 382.2(2010):82-87.

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