The cytoskeletal proteins in the contractile tissues of the testis and its excurrent ducts of the passerine bird, Masked Weaver (Ploceus velatus)

Show simple item record Ozegbe, P.C. Aire, Tom A. Deokar, M.S. 2012-09-12T07:51:28Z 2012-09-12T07:51:28Z 2012-02
dc.description.abstract The cellular composition of the testicular capsule, seminiferous peritubular tissue, the epithelia as well as periductal muscle cell layers of the excurrent ducts was studied, in sexually mature and active Masked Weaver (Ploceus velatus) birds of the passerine family, Ploceidae. Ultrastructure of the contractile cells in the testicular capsule, peritubular and periductal tissues showed that these cells were smooth muscles of typical morphological characteristics. Variability in the immunohistochemical co-expression of microfilaments and intermediate filaments in the different tissues was evident. Actin and desmin proteins were co-expressed immunohistochemically in the testicular capsule and seminiferous peritubular smooth muscle layer. Actin was singly and very weakly expressed in the rete testis epithelium while cytokeratins and desmin were co-expressed in the epithelium of the excurrent ducts. The periductal muscle layer of all ducts of the epididymis, the ductus deferens as well as the seminal glomus, strongly co-expressed actin and desmin. Vimentin was absent in all cells and tissue types studied. There is clear evidence that the tissues of the male gonad and its excurrent ducts in the Masked Weaver, as has been reported for members of the Galloanserae and Ratitae, contain well-formed contractile tissues whose function would include the transportation of luminal through-flow from the testis into, and through, its excurrent ducts. The microtubule helix in the head and of the mid-piece, of elongating spermatids, as well as of the mature spermatozoa in the various excurrent ducts, including some spermatozoa in the seminal glomus, also co-expressed these three proteins. en
dc.description.librarian ab2012 en
dc.description.sponsorship The Postdoctoral Fellowship awarded to PCO and the funds provided by the University of Pretoria. en
dc.description.uri en
dc.identifier.citation P.C. Ozegbe, T.A. Airea & M.S. Deokar, The cytoskeletal proteins in the contractile tissues of the testis and its excurrent, Tissue and Cell, vol. 44, no. 1, pp. 22–31 (2012), doi:10.1016/j.tice.2011.10.002. en
dc.identifier.issn 0040-8166
dc.identifier.other 10.1016/j.tice.2011.10.002
dc.language.iso en en
dc.rights © 2011 Elsevier. All rights reserved. Notice : this is the author’s version of a work that was accepted for publication in Tissue and Cell. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Tissue and Cell, Volume 44, Issue 1, February 2012, Pages 22–31, doi:10.1016/j.tice.2011.10.002. en
dc.subject Passerine bird en
dc.subject Microfilaments en
dc.subject Intermediate filaments en
dc.subject Immunohistochemistry en
dc.subject Excurrent ducts en
dc.subject.lcsh Weaverbirds en
dc.subject.lcsh Ploceidae en
dc.subject.lcsh Testis en
dc.subject.lcsh Cytoskeletal proteins en
dc.title The cytoskeletal proteins in the contractile tissues of the testis and its excurrent ducts of the passerine bird, Masked Weaver (Ploceus velatus) en
dc.type Postprint Article en

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