Digestive tract ontogeny of Dicentrarchus labrax: Implication in osmoregulation

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Digestive tract ontogeny of Dicentrarchus labrax: implication in osmoregulation.

The ontogeny of the digestive tract (DT) and of Na(+)/K(+)-ATPase localization was investigated during the early postembryonic development (from yolk sac larva to juvenile) of the euryhaline teleost Dicentrarchus labrax reared at two salinities: seawater and diluted seawater. Histology, electron microscopy and immunocytochemistry were used to determine the presence and differentiation of ion tr...

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The Na + / K + / 2 Cl – cotransporter in the sea bass Dicentrarchus labrax during ontogeny : involvement in osmoregulation Catherine Lorin - Nebel

Introduction When exposed to salinity variations, teleosts adapt through osmoregulation, which results in the maintenance of their blood osmolality within a narrow range of ~280–350·mosmol·kg –1. Marine teleosts are subject to diffusive ion invasion and osmotic water loss. Their main osmoregulatory adaptations include the following. (1) In the digestive tract, high drinking rate of seawater (SW...

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Expression and Localization of Aquaporin 1a in the Sea-Bass (Dicentrarchus labrax) during Ontogeny

The successful establishment of a species in a given habitat depends on the ability of each of its developing stages to adapt to the environment. In order to understand this process we have studied the adaptation of a euryhaline fish, the sea-bass Dicentrarchus labrax, to various salinities during its ontogeny. The expression and localization of Aquaporin 1a (AQP1a) mRNA and protein were determ...

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ژورنال

عنوان ژورنال: Development, Growth and Differentiation

سال: 2006

ISSN: 0012-1592,1440-169X

DOI: 10.1111/j.1440-169x.2006.00852.x