Electron microscopic study of the secretion process in bovine reproductive organs

Journal of Andrology
Y Agrawal, T Vanha-Perttula


The origin and mechanism of the secretion of membrane-bound particles in bovine seminal plasma were studied with transmission (TEM) and scanning (SEM) electron microscopy of the epididymis, vas deferens, ampulla, and seminal vesicle of adult bulls. In the SEM study, all these organs were found to contain apical protrusions in the lining of the epithelial cells. Eventually the protrusions became detached and formed secretory bodies within the lumina of these organs. In the epididymis, the TEM study disclosed a granular and rather homogeneous content in the protrusions and bodies, whereas in the vas deferens they contained dilated cisternae of smooth endoplasmic reticulum. In the ampulla and seminal vesicle, the formation of the apical protrusions was associated with an accumulation of membrane-bound vesicles. These vesicles were found to be released from the storage bodies into the secretory fluid of the lumen. Both could be harvested from isolated seminal vesicle secretions by Percoll gradient centrifugation. It was concluded that various parts of the bovine reproductive organs discharge their secretory products at least partly by an apocrine mechanism. The membrane-bound particles in the seminal plasma, however, appear to be m...Continue Reading


May 12, 1977·Biochimica Et Biophysica Acta·M D RosenbergB Anderson
Apr 30, 1979·Cell and Tissue Research·G Aumüller, G Adler
Nov 1, 1975·The Journal of Cell Biology·S K SandersR C Braylan
Jul 1, 1985·Journal of Andrology·M Arya, T Vanha-Perttula
Sep 9, 1985·Biochimica Et Biophysica Acta·G Ronquist, I Brody
Mar 1, 1987·Journal of Reproduction and Fertility·Y Agrawal, T Vanha-Perttula
Aug 1, 1986·The Journal of Histochemistry and Cytochemistry : Official Journal of the Histochemistry Society·A R BeaudoinC Cabana
Jun 1, 1985·International Journal of Andrology·Y Agrawal, T Vanha-Perttula
Apr 1, 1985·The American Journal of Anatomy·R YanagimachiH Yanagimachi
Feb 1, 1985·The American Journal of Anatomy·H O Goyal
Jan 1, 1974·Cell and Tissue Research·L NicanderM Larsson
Feb 23, 1973·Zeitschrift für Zellforschung und mikroskopische Anatomie·E DahlK J Tveter
Aug 1, 1973·Biology of Reproduction·P W Reed, Y Takahashi
Dec 1, 1973·Experientia·B K Davis
Oct 1, 1968·Journal of Reproduction and Fertility·C B MetzJ L Anika
Jan 1, 1982·Urological Research·B Stegmayr, G Ronquist
Jan 1, 1983·Upsala Journal of Medical Sciences·I BrodyA Gottfries
Jan 1, 1983·Acta Anatomica·M CossuA Riva
May 1, 1982·Archives of Andrology·A RivaM Cossu
Jan 1, 1982·Scandinavian Journal of Urology and Nephrology·B Stegmayr, G Ronquist

❮ Previous
Next ❯


Aug 1, 1989·International Journal of Andrology·Y P Agrawal, T Vanha-Perttula
Oct 29, 2010·Veterinary Medicine International·Julieta CaballeroRobert Sullivan
Jun 5, 2012·Cell and Tissue Banking·Mariana RovegnoMayra Elena Ortiz D'Avila Assumpção
Mar 14, 2003·Journal of Andrology·Fabrice SaezRobert Sullivan
Mar 8, 2006·Reproduction in Domestic Animals = Zuchthygiene·R El-Hajj GhaouiW M C Maxwell
Oct 17, 2003·Biology of Reproduction·Sandrine CastellaJean-Louis Dacheux
Jun 9, 2004·Reproduction in Domestic Animals = Zuchthygiene·R El-Hajj GhaouiW M C Maxwell
Mar 3, 2006·Biology of Reproduction·Hanae RejrajiJoël R Drevet
Sep 19, 2002·Molecular Reproduction and Development·Louis Hermo, Duncan Jacks
May 17, 2005·Blood Cells, Molecules & Diseases·Robert SullivanGilles Frenette

❮ Previous
Next ❯

Related Concepts

Trending Feeds


Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.


Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.


Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

International Journal of Andrology
Y Agrawal, T Vanha-Perttula
The Journal of Histochemistry and Cytochemistry : Official Journal of the Histochemistry Society
S ParkkilaH Rajaniemi
Micron : the International Research and Review Journal for Microscopy
Sha Xie, Baozhen Hua
© 2021 Meta ULC. All rights reserved