PMID: 1201592Nov 19, 1975Paper

Myoid cells in the peritubular tissue (Lamina propria) of the reptilian testis

Cell and Tissue Research
K Unsicker, G Burnstock

Abstract

The arrangement and fine structure of peritubular myoid cells was studied in the testes of three species of reptiles (Lacerta dugesi, Testudo graeca and Natrix natrix) during two short periods of the seasonal cycle (European spring and autumn) and correlated with some ultrastructural properties of Leydig cells. The lamina propria consists of myoid cells, fibroblasts and non-cellular components comprising collageneous and non-striated microfibrils. Both components are arranged in alternating layers surrounding seminiferous tubules. In spring the lamina propria of lacertilian testis shows 1-5 layers of myoid cells which are rich in 50-70 A filaments and exhibit plasmalemmal and intracellular dense patches, smooth vesicles along the cell membrane and a concentration of organelles in a juxtanuclear position. Leydig cells are rich in smooth ER profiles and have few lipid droplets. In atumumn most myoid cells are replaced by fibroblast-like elements. Leydig cells display large numbers of lipid droplets and dense bodies, but only small amounts of agranular ER. Similar changes are noted in Leydig cells of Testudo and Natrix. However, in these species the boundary tissue of seminiferous tubules fails to show significant alterations comp...Continue Reading

Citations

Dec 31, 1973·Zeitschrift für Zellforschung und mikroskopische Anatomie·K Unsicker
Dec 1, 1976·Biulleten' eksperimental'noĭ biologii i meditsiny·V S Rukosuev
Dec 17, 2009·Journal of Morphology·Brandon C MooreLouis J Guillette
Jun 1, 1981·Archives of Andrology·L C EllisR J Tesi

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