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Peritubular Cells in the Testis of the Common Carp (Cyprinus Carpio L.) ; Ultrastructure and Characterisation With Actin and Desmin (Immuno) Cytochemistry

Peritubular Cells in the Testis of the Common Carp (Cyprinus Carpio L.) ; Ultrastructure and... PERITUBULAR CELLS IN THE TESTIS OF THE COMMON CARP (CYPRINUS CARPIO L.) ; ULTRASTRUCTURE AND CHARACTERISATION WITH ACTIN AND DESMIN (IMMUNO) CYTOCHEMISTRY by L.P.M. TIMMERMANS, H. SCHIPPER and G.J. DULOS (Department of Experimental Animal Morphology and Cell Biology, Agricultural University, Postbox 338, 6700 AH Wageningen, The Netherlands) ABSTRACT With electron microscopy, the presence of peritubular cells has been demonstrated in the interstitial tissue of carp testis. They are long flattened cells, often occupying nearly the whole space between neighbouring tubules. Their ultrastructural characteristics in mature carp, i.e. microfilaments and dense bodies, indicate myoid properties, probably related to sperm transport, similar to peritubular cells in mammals and to myoid boundary cells in pikes. The presence of actin, revealed in peritubular cells of mature carp testis, confirms the ultrastructural demonstration of microfilaments. Moreover, the peritubular cells are characterized by desmin, as shown in a double (immuno)fluorescence reaction for actin and desmin. The location of desmin in the peritubular cells is similar to that in mice and other mammals. However, in testes of carp at the age of seven months, showing active spermatogenesis, only faint desmin positivity was observed. Moreover, contrary to mice and other mammals, activity of alkaline phosphatase seems http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Netherlands Journal of Zoology (in 2003 continued as Animal Biology) Brill

Peritubular Cells in the Testis of the Common Carp (Cyprinus Carpio L.) ; Ultrastructure and Characterisation With Actin and Desmin (Immuno) Cytochemistry

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Publisher
Brill
Copyright
© 1992 Koninklijke Brill NV, Leiden, The Netherlands
ISSN
0028-2960
eISSN
1568-542X
DOI
10.1163/156854293X00070
Publisher site
See Article on Publisher Site

Abstract

PERITUBULAR CELLS IN THE TESTIS OF THE COMMON CARP (CYPRINUS CARPIO L.) ; ULTRASTRUCTURE AND CHARACTERISATION WITH ACTIN AND DESMIN (IMMUNO) CYTOCHEMISTRY by L.P.M. TIMMERMANS, H. SCHIPPER and G.J. DULOS (Department of Experimental Animal Morphology and Cell Biology, Agricultural University, Postbox 338, 6700 AH Wageningen, The Netherlands) ABSTRACT With electron microscopy, the presence of peritubular cells has been demonstrated in the interstitial tissue of carp testis. They are long flattened cells, often occupying nearly the whole space between neighbouring tubules. Their ultrastructural characteristics in mature carp, i.e. microfilaments and dense bodies, indicate myoid properties, probably related to sperm transport, similar to peritubular cells in mammals and to myoid boundary cells in pikes. The presence of actin, revealed in peritubular cells of mature carp testis, confirms the ultrastructural demonstration of microfilaments. Moreover, the peritubular cells are characterized by desmin, as shown in a double (immuno)fluorescence reaction for actin and desmin. The location of desmin in the peritubular cells is similar to that in mice and other mammals. However, in testes of carp at the age of seven months, showing active spermatogenesis, only faint desmin positivity was observed. Moreover, contrary to mice and other mammals, activity of alkaline phosphatase seems

Journal

Netherlands Journal of Zoology (in 2003 continued as Animal Biology)Brill

Published: Jan 1, 1992

Keywords: desmin; Cyprinus carpio L; ultrastructure; actin; testis; peritubular cells

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