期刊
MARINE ENVIRONMENTAL RESEARCH
卷 83, 期 -, 页码 48-53出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.marenvres.2012.10.008
关键词
Antioxidant response; Invasive algae; Mediterranean Sea; Oxidative stress
资金
- Spanish Ministry of Science and Innovation [CTM2005-01434/MAR]
The aim was to determine the effects of alien algae feeding on biomarkers of oxidative stress in the sea urchin Paracentrotus lividus. Sea urchins were fed during three months with the native seagrass Posidonia oceanica, and the alien macroalgae Caulerpa racemosa and Lophocladia lallemandii and biochemical analysis were performed in the gonads. A control group was immediately processed after sampling from the sea. Antioxidant enzyme and glutathione S-transferase activities and GSH concentration were significantly higher in sea urchins fed with alien algae when compared with the control group and the one fed with P. oceanica group. This response was more intense in the group fed with L. lallemandii respect to the C. racemosa group. The concentration of MDA, protein carbonyl derivates and 8-OHdG reported no significant differences between treatments. In conclusion, the invasive algae C. racemosa and L. lallemandii induced an antioxidant response in P. lividus without evident oxidative damage. (C) 2012 Elsevier Ltd. All rights reserved.
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