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Ion uptake pathways in European sea bass Dicentrarchus labrax
Provedor de dados: 5
Autores: Blondeau-bidet, Eva; Hiroi, Junya; Lorin-nebel, Catherine.
Ion uptake mechanisms are diverse in fish species, certainly linked to duplication events that have led to the presence of a multitude of paralogous genes. In fish, Na+ uptake involves several ion transporters expressed in different ionocyte subtypes. In the European sea bass Dicentrarchus labrax, several key transporters potentially involved in Na+ uptake have been investigated in seawater (SW) and following a 2 weeks freshwater (FW) acclimation. Using gel electrophoresis, we have shown that the Na+/H+-exchanger 3 (nhe3, slc9a3) is expressed in gills and kidney at both salinities. Quantitative realtime PCR analysis showed a significantly higher nhe3 expression in fresh water (FW) compared to SW. Its apical localization in a subset of gill ionocytes in...
Tipo: Text
Palavras-chave: Teleost; Osmoregulation; Ion transporters; Na+ uptake; NHE3; NCC2.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00485/59618/62638.pdf