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Embryonic ionocytes in the European sea bass (Dicentrarchus labrax): Structure and functionality.
Dev Growth Differ. 2011 Jan; 53(1):26-36.DG

Abstract

Early ionocytes have been studied in the European sea bass (Dicentrarchus labrax) embryos. Structural and functional aspects were analyzed and compared with those observed in the same conditions (38 ppt) in post hatching stages. Immunolocalization of Na(+) /K(+) -ATPase (NKA) in embryos revealed the presence of ionocytes on the yolk sac membrane from a stage 12 pair of somites (S), and an original cluster around the first gill slits from stage 14S. Histological investigations suggested that from these cells, close to the future gill chambers, originate the ionocytes observed on gill arches and gill filaments after hatching. Triple immunocytochemical staining, including NKA, various Na(+) /K(+) /2Cl⁻ cotransporters (NKCCs) and the chloride channel "cystic fibrosis transmembrane regulator" (CFTR), point to the occurrence of immature and mature ionocytes in early and late embryonic stages at different sites. These observations were completed with transmission electronic microscopy. The degree of functionality of ionocytes is discussed according to these results. Yolk sac membrane ionocytes and enteric ionocytes seem to have an early role in embryonic osmoregulation, whereas gill slits tegumentary ionocytes are presumed to be fully efficient after hatching.

Authors+Show Affiliations

University of Montpellier, France. elliott.sucre@univ-montp2.frNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

21261608

Citation

Sucré, Elliott, et al. "Embryonic Ionocytes in the European Sea Bass (Dicentrarchus Labrax): Structure and Functionality." Development, Growth & Differentiation, vol. 53, no. 1, 2011, pp. 26-36.
Sucré E, Charmantier-Daures M, Grousset E, et al. Embryonic ionocytes in the European sea bass (Dicentrarchus labrax): Structure and functionality. Dev Growth Differ. 2011;53(1):26-36.
Sucré, E., Charmantier-Daures, M., Grousset, E., & Cucchi-Mouillot, P. (2011). Embryonic ionocytes in the European sea bass (Dicentrarchus labrax): Structure and functionality. Development, Growth & Differentiation, 53(1), 26-36. https://doi.org/10.1111/j.1440-169X.2010.01219.x
Sucré E, et al. Embryonic Ionocytes in the European Sea Bass (Dicentrarchus Labrax): Structure and Functionality. Dev Growth Differ. 2011;53(1):26-36. PubMed PMID: 21261608.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Embryonic ionocytes in the European sea bass (Dicentrarchus labrax): Structure and functionality. AU - Sucré,Elliott, AU - Charmantier-Daures,Mireille, AU - Grousset,Evelyse, AU - Cucchi-Mouillot,Patricia, PY - 2011/1/26/entrez PY - 2011/1/26/pubmed PY - 2011/5/11/medline SP - 26 EP - 36 JF - Development, growth & differentiation JO - Dev. Growth Differ. VL - 53 IS - 1 N2 - Early ionocytes have been studied in the European sea bass (Dicentrarchus labrax) embryos. Structural and functional aspects were analyzed and compared with those observed in the same conditions (38 ppt) in post hatching stages. Immunolocalization of Na(+) /K(+) -ATPase (NKA) in embryos revealed the presence of ionocytes on the yolk sac membrane from a stage 12 pair of somites (S), and an original cluster around the first gill slits from stage 14S. Histological investigations suggested that from these cells, close to the future gill chambers, originate the ionocytes observed on gill arches and gill filaments after hatching. Triple immunocytochemical staining, including NKA, various Na(+) /K(+) /2Cl⁻ cotransporters (NKCCs) and the chloride channel "cystic fibrosis transmembrane regulator" (CFTR), point to the occurrence of immature and mature ionocytes in early and late embryonic stages at different sites. These observations were completed with transmission electronic microscopy. The degree of functionality of ionocytes is discussed according to these results. Yolk sac membrane ionocytes and enteric ionocytes seem to have an early role in embryonic osmoregulation, whereas gill slits tegumentary ionocytes are presumed to be fully efficient after hatching. SN - 1440-169X UR - https://www.unboundmedicine.com/medline/citation/21261608/Embryonic_ionocytes_in_the_European_sea_bass__Dicentrarchus_labrax_:_Structure_and_functionality_ L2 - https://doi.org/10.1111/j.1440-169X.2010.01219.x DB - PRIME DP - Unbound Medicine ER -