The impact of acute thermal stress on green mussel Perna viridis: Oxidative damage and responses

Examining the physiological responses of mussels to thermal stress is crucial to evaluate their biogeographic distribution and ability to adapt to a changing climate. In the present study, we investigated the effects of acute cold (8 °C and 15 °C) and heat (35 °C and 42 °C) stress on the mortality r...

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Bibliographic Details
Published in:Comparative biochemistry and physiology. Part A, Molecular & integrative physiology Molecular & integrative physiology, 2018-08, Vol.222, p.7-15
Main Authors: Wang, Jing, Dong, Bo, Yu, Zhen-Xing, Yao, Cui-Luan
Format: Article
Language:English
Subjects:
Acclimatization - physiology
Animals
Antioxidants - metabolism
Caspase 3 - metabolism
Caspase-3
Catalase - metabolism
Cold Temperature
Enzyme Activation
Gills - metabolism
Glutathione Peroxidase - metabolism
Hot Temperature
Hsp70
HSP70 Heat-Shock Proteins - genetics
HSP70 Heat-Shock Proteins - metabolism
Lipid Peroxidation
Malondialdehyde - metabolism
Membrane Potential, Mitochondrial
Oxidative damage
Oxidative Stress
p38 Mitogen-Activated Protein Kinases - metabolism
p38-MAPK
Perna - metabolism
Perna - physiology
Perna viridis
Phosphorylation
Reactive Oxygen Species - metabolism
RNA, Messenger - metabolism
Stress, Physiological
Superoxide Dismutase - metabolism
Temperature stress
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Summary:Examining the physiological responses of mussels to thermal stress is crucial to evaluate their biogeographic distribution and ability to adapt to a changing climate. In the present study, we investigated the effects of acute cold (8 °C and 15 °C) and heat (35 °C and 42 °C) stress on the mortality rate, reactive oxygen species (ROS) production, malondialdehyde (MDA) content, mitochondrial membrane potential (MMP) and antioxdative responses in the gill tissue of the green mussel species Perna viridis. Our results showed that cold and heat stress induced a temperature-dependent increase in mortality rate. ROS production increased significantly (p 
ISSN:1095-6433
1531-4332
DOI:10.1016/j.cbpa.2018.04.001