Ocean acidification slows retinal function in a damselfish through interference with GABAA receptors.
J Exp Biol
; 217(Pt 3): 323-6, 2014 Feb 01.
Article
em En
| MEDLINE
| ID: mdl-24477607
ABSTRACT
Vision is one of the most efficient senses used by animals to catch prey and avoid predators. Therefore, any deficiency in the visual system could have important consequences for individual performance. We examined the effect of CO2 levels projected to occur by the end of this century on retinal responses in a damselfish, by determining the threshold of its flicker electroretinogram (fERG). The maximal flicker frequency of the retina was reduced by continuous exposure to elevated CO2, potentially impairing the capacity of fish to react to fast events. This effect was rapidly counteracted by treatment with a GABA antagonist (gabazine), indicating that GABAA receptor function is disrupted by elevated CO2. In addition to demonstrating the effects of elevated CO2 on fast flicker fusion of marine fishes, our results show that the fish retina could be a model system to study the effects of high CO2 on neural processing.
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Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Retina
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Água do Mar
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Perciformes
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Dióxido de Carbono
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Receptores de GABA-A
Limite:
Animals
Idioma:
En
Revista:
J Exp Biol
Ano de publicação:
2014
Tipo de documento:
Article
País de afiliação:
Austrália