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Immunolocalization of Na+, K+‐ATPase‐rich cells in the gill and urinary system of Persian sturgeon, Acipenser persicus, fry

Identifieur interne : 000968 ( Main/Merge ); précédent : 000967; suivant : 000969

Immunolocalization of Na+, K+‐ATPase‐rich cells in the gill and urinary system of Persian sturgeon, Acipenser persicus, fry

Auteurs : Saber Khodabandeh [Iran] ; Zahra Khoshnood [Iran] ; Saeide Mosafer [Iran]

Source :

RBID : ISTEX:CE7C1082AB5FCA93CF1569C2C0B6E2DF5772B4BE

English descriptors

Abstract

Localization of Na+, K+‐ATPase‐rich cells in the gill and urinary system of Acipenser persicus fry was performed through immunofluorescence light microscopy using a mouse monoclonal antibody IgGα5 raised against the α‐subunit of chicken Na+, K+‐ATPase. Different types of epithelia were clearly identified in the gill epithelium: epithelia of branchial arch, interbranchial septum, filament and lamellar epithelium. The Na+, K+‐ATPase‐rich cells were found in the epithelia of branchial arch, interbranchial septum, filament, interlamellar region and also in the lamellae. Histologically, the urinary system is divided into head kidney, trunk kidney and short caudal kidney. The head kidney is composed of the pronephric tubules and the haemopoietic tissues, while the trunk kidney is composed of a large number of glomeruli and convoluted nephrons. Each nephron consisted of a large glomerulus and tubules (neck, proximal, distal and collecting tubules) which connected to ureters. Posteriorly, ureters extended and joined together to form a small urinary bladder. In the urinary system, no specific fluorescence staining was observed in the glomerulus, neck segment and proximal tubules. The distal tubule cells and collecting tubule cells showed a strong immunostaining of Na+, K+‐ATPase. Epithelia of ureters and urinary bladder also showed several isolated immunofluorescent cells. Immunofluorescent cells were rich in Na+, K+‐ATPase enzyme which is very important for osmoregulation.

Url:
DOI: 10.1111/j.1365-2109.2008.02097.x

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ISTEX:CE7C1082AB5FCA93CF1569C2C0B6E2DF5772B4BE

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<div type="abstract" xml:lang="en">Localization of Na+, K+‐ATPase‐rich cells in the gill and urinary system of Acipenser persicus fry was performed through immunofluorescence light microscopy using a mouse monoclonal antibody IgGα5 raised against the α‐subunit of chicken Na+, K+‐ATPase. Different types of epithelia were clearly identified in the gill epithelium: epithelia of branchial arch, interbranchial septum, filament and lamellar epithelium. The Na+, K+‐ATPase‐rich cells were found in the epithelia of branchial arch, interbranchial septum, filament, interlamellar region and also in the lamellae. Histologically, the urinary system is divided into head kidney, trunk kidney and short caudal kidney. The head kidney is composed of the pronephric tubules and the haemopoietic tissues, while the trunk kidney is composed of a large number of glomeruli and convoluted nephrons. Each nephron consisted of a large glomerulus and tubules (neck, proximal, distal and collecting tubules) which connected to ureters. Posteriorly, ureters extended and joined together to form a small urinary bladder. In the urinary system, no specific fluorescence staining was observed in the glomerulus, neck segment and proximal tubules. The distal tubule cells and collecting tubule cells showed a strong immunostaining of Na+, K+‐ATPase. Epithelia of ureters and urinary bladder also showed several isolated immunofluorescent cells. Immunofluorescent cells were rich in Na+, K+‐ATPase enzyme which is very important for osmoregulation.</div>
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