Hypoxia effects on oxidative stress and immunocompetence biomarkers in the mussel Perna perna (Mytilidae, Bivalvia)

被引:52
|
作者
Nogueira, Lilian [1 ]
Mello, Danielle Ferraz [2 ]
Trevisan, Rafael [2 ]
Garcia, Danielly [1 ]
Acosta, Daiane da Silva [2 ]
Dafre, Alcir Luiz [2 ]
de Almeida, Eduardo Alves [1 ,3 ]
机构
[1] Univ Estadual Paulista, IBILCE UNESP, Dept Quim & Ciencias Ambientais, Lab Biomarcadores Contaminacao Aquat, BR-15054000 Sao Jose Do Rio Preto, SP, Brazil
[2] Univ Fed Santa Catarina, Dept Bioquim, Lab Def Celulares, BR-88040900 Florianopolis, SC, Brazil
[3] Univ Reg Blumenau, Dept Ciencias Nat, Rua Antonio Veiga 140, BR-89030903 Blumenau, SC, Brazil
基金
巴西圣保罗研究基金会;
关键词
Reduced oxygen levels; Bivalves; Antioxidant defenses; Hemocytes; Immune system; OYSTER CRASSOSTREA-GIGAS; HALIOTIS-DIVERSICOLOR-SUPERTEXTA; SHORT-TERM HYPOXIA; REACTIVE OXYGEN; PACIFIC OYSTER; ANTIOXIDANT DEFENSES; IMMUNE-RESPONSE; GLUTATHIONE; MARINE; TEMPERATURE;
D O I
10.1016/j.marenvres.2017.02.009
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
This study investigated the effects of hypoxia on oxidative stress response and immune function in mussels Perna perna exposed to air for 6, 12, 24 and 48 h. In air-exposed mussels, the antioxidant enzymes superoxide dismutase (SOD), catalase, and glutathione reductase (GR) activities were lower in gill tissues (24-48 h) and digestive gland (12 h), while the glutathione peroxidase and GR activities were increased in the digestive gland (48 h). In both tissues, aerial exposure promoted a rapid (6 h) and persistent (up to 48 h) increase of glutathione levels. Decreased hemocyte count and viability, as well as increased phagocytic activity and cellular adhesion capacity were detected after prolonged aerial exposure (>12 h). In summary, induction of thiol pools, altered antioxidant enzyme activities, and activation of immune responses were detected in hypoxia exposed brown mussels, indicating hypoxia induced tissue-specific responses in both antioxidant and immune systems. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码:109 / 115
页数:7
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