Effects of UV radiation on hatching, lipid peroxidation, and fatty acid composition in the copepod Paracyclopina nana.
作者： Eun-Ji Won , Yeonjung Lee , Jeonghoon Han , Un-Ki Hwang , Kyung-Hoon Shin
DOI: 10.1016/J.CBPC.2014.06.001
关键词: Oxidative stress 、 Biology 、 Antioxidant 、 Lipid peroxidation 、 Reactive oxygen species 、 Superoxide dismutase 、 Glutathione 、 Docosahexaenoic acid 、 Eicosapentaenoic acid 、 Biochemistry
摘要: To evaluate the effects of UV radiation on reproductive physiology and macromolecules in marine zooplankton, several doses were used to treat copepod Paracyclopina nana, we analyzed vivo endpoints their life cycle such as mortality parameters with vitro biochemical biomarkers reactive oxygen species (ROS), modulated enzyme activity glutathione S-transferase (GST) superoxide dismutase (SOD), production a byproduct peroxidation (e.g. malonedialdehyde, MDA). After radiation, survival rate P. nana was significantly reduced. Also, egg sac damage reduction hatching offspring observed UV-irradiated ovigerous females. According assessed parameters, found dose-dependent increases ROS levels high lipid decomposition product by 2 kJ m(-2), implying that under off-balanced status oxidative stress-mediated cellular damage. Antioxidant activities GST SOD increased over different radiation. measure UV-induced peroxidation, slight composition essential fatty acids eicosapentaenoic acid (EPA) docosahexaenoic (DHA). These findings indicate can induce stress-triggered modulation antioxidant activity, leading significant effect fecundity). results demonstrate involvement its susceptibility compared other species.
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