Stress-induced changes of plasma antioxidants in aquacultured sea bass, Dicentrarchus labrax

被引：51

作者：

Guerriero, G ^{[1
]}

Di Finizio, A ^{[1
]}

Ciarcia, G ^{[1
]}

机构：

[1] Univ Naples Federico II, Dept Zool, I-80134 Naples, Italy

来源：

COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY A-MOLECULAR & INTEGRATIVE PHYSIOLOGY | 2002年 / 132卷 / 01期

关键词：

alpha-tocopherol; ascorbate; glutathione peroxidase; HPLC; body mass; hypoxia; temperature; pH; salinity; chlorine; Dicentrarchus labrax;

D O I：

10.1016/S1095-6433(01)00549-9

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Antioxidant plasma activities of ascorbate, alpha-tocopherol and glutathione peroxidase were analysed in adult male sea bass, Dicentrarchus labrax, in normal conditions and after hypoxia-recovery. In addition, tank measurements of temperature. pH. salinity and chlorine changes were carried out. Ascorbate and a-tocopherol were measured using a high-pressure liquid chromatography method and glutathione peroxidase activity enzymatically. Ascorbate and alpha-tocopherol showed a relationship with the velocity of body growing in normal and hypoxia-recovery conditions. In sea bass exposed to hypoxia. only ascorbate and alpha-tocopherol levels were significantly lower compared with the control group. Slope study and expression percent of antioxidants reduction after stress conditions revealed a predominant role of plasma alpha-tocopherol. Sea bass subjected to variations of salinity and chlorine showed a significant decrease in plasma alpha-tocopherol. A relationship could be suggested between antioxidant defence and fish response in aquaculture. (C) 2002 Elsevier Science Inc. All rights reserved.

引用

页码：205 / 211

页数：7

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