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Histochemical and Ultrastructural Studies of the Prostate Gland of Quinqueserialis quinqueserialis (Trematoda: Notocotylidae)

Darwin D. Wittrock
Transactions of the American Microscopical Society
Vol. 105, No. 4 (Oct., 1986), pp. 365-374
Published by: Wiley on behalf of American Microscopical Society
DOI: 10.2307/3226523
Stable URL: http://www.jstor.org/stable/3226523
Page Count: 10
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Histochemical and Ultrastructural Studies of the Prostate Gland of Quinqueserialis quinqueserialis (Trematoda: Notocotylidae)
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Abstract

Histochemical and ultrastructural studies were conducted on the prostate gland and associated ejaculatory duct of the notocotylid trematode Quinqueserialis quinqueserialis. The prostate gland consists of numerous pyriform cells ly sac and grouped around the ejaculatory duct. These cells, rich in ribosomes, granular endoplasmic reticulum, mitochondria, Golgi complexes, and autophagosomes, are involved in the production of two types of secretions. Cells in the posterior prostate produce dense secretions composed of a glycoprotein, whereas cells of the anterior prostate secrete electron-lucent bodies containing a fluid component with some protein r from these cells pass along thin cytoplasmic ducts through the ejaculatory epithelium and muscle and accumulate in the lumen of the ejaculatory duct. Electron-dense secretions are limited to the posterior portion of ejaculatory duct; electron-lucent secretions are isolated in the anterior region. The ejaculatory duct consists of layers of longitudinal and circular muscle and an epithelium that forms thin projections enclosing prostatic secretions.

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