Morphological and histochemical characterization of the seminiferous epithelial and Leydig cells of the turkey

Animal Reproduction Science
M R BakstJean-Pierre Brillard

Abstract

Unlike mammals, there is little fundamental information about spermatogenesis in birds. This study was undertaken to clarify the morphology, histochemistry, and lectin affinity of the seminiferous epithelial cells and Leydig cells in pre-pubertal (8- to 15-week old) and adult (40- to 44-week old) domestic turkeys. In adult turkeys, three types of spermatogonia were defined based on their chromatin distribution and nuclear morphology: the dark type A (A(d)); the pale type A (A(p)); and the type B. The A(d) is the least numerous and least conspicuous and consequently difficult to locate. Based on its spatial distribution and overall morphology, type A(d) spermatogonia were postulated to be the spermatogonia stem cells in the turkey. Antibodies to c-kit were localized to spermatogonia in the pre-pubertal and to a lesser extent in adult males. Peanut agglutinin (PNA) was specific for spermatocytes in the pre-pubertal males and spermatogonia and early spermatocytes in adult males. Wheat-germ agglutinin (WGA) highlighted Sertoli cells in both age groups. Bandeiraea simplicifolia I, soybean agglutinin, and winged-pea agglutinin staining were limited to the wall of the seminiferous tubule and some extra-tubular cell types. Concanavalin...Continue Reading

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Citations

Jan 29, 2013·Environmental Science and Pollution Research International·Edith GuibertPascal Froment
Sep 26, 2013·Animal Reproduction Science·J MucksováP Trefil
May 13, 2010·British Poultry Science·M G González-Morán, E Soria-Castro
Dec 3, 2014·Theriogenology·Elodie BachelardBertrand Pain
Apr 5, 2011·Micron : the International Research and Review Journal for Microscopy·Mateus R BegueliniEliana Morielle-Versute
Dec 17, 2008·Animal Reproduction Science·J MucksováP Trefil
Jul 19, 2012·Journal of Morphology·Arlette Hernández-Franyutti, Mari Carmen Uribe

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