Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Search research articles

Related Experiment Videos

Spermatogenesis and spermiogenesis in Microcotyle sp. (Microcotylidae, Monogenea).

M F Diniz Baptista-Farias¹, A Kohn, S C Cohen

¹Laboratório de Helmintos Parasitos de Peixes, Dep. Helmintologia, Instituto Oswaldo Cruz, Rio de Janeiro, Brasil.

The Journal of Parasitology

|November 30, 1999

Summary

This study details the ultrastructure of Microcotyle sp. sperm development, revealing key features of spermatogenesis and spermiogenesis in this monogenean parasite.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Towards Multireference Equivalents of the HEAT Thermochemical Protocol.

Journal of computational chemistry·2025

Same author

The reduction behavior of sulfurized polyacrylonitrile (SPAN) in lithium-sulfur batteries using a carbonate electrolyte: a computational study.

Physical chemistry chemical physics : PCCP·2024

Same author

A generalized hybrid scheme for multireference methods.

The Journal of chemical physics·2021

Same author

Azathioprine for prevention of clinical recurrence in Crohn's disease patients with severe endoscopic recurrence: an IG-IBD randomized double-blind trial.

European review for medical and pharmacological sciences·2020

Same author

Multicentre approach to epidemiological aspects of craniosynostosis in Germany.

The British journal of oral & maxillofacial surgery·2018

Same author

The Timecourse of Global Cognitive Gains from Supervised Computer-Assisted Cognitive Training: A Randomised, Active-Controlled Trial in Elderly with Multiple Dementia Risk Factors.

The journal of prevention of Alzheimer's disease·2017

Area of Science:

Parasitology
Marine biology
Cell biology

Background:

Monogeneans are parasitic flatworms, with Microcotyle sp. infecting fish gills.
Understanding parasite reproduction is crucial for controlling infections.
Spermatogenesis and spermiogenesis are complex processes in parasitic organisms.

Purpose of the Study:

To describe the ultrastructural details of spermatogenesis and spermiogenesis in Microcotyle sp.
To provide insights into the reproductive biology of this monogenean parasite.

Main Methods:

Transmission electron microscopy was used to examine Microcotyle sp. testes.
Ultrastructural features of developing sperm cells were analyzed.

Main Results:

Related Experiment Videos

Spermatogonia were irregularly shaped; spermatocytes showed a synaptonemal complex.
Young spermatids formed rosettes around a central cytophore.
Spermiogenesis involved cytoplasmic protuberances and flagellar fusion.
Mature spermatozoa possessed nuclei, mitochondria, microtubules, and 9+1 axonemes.

Conclusions:

The study provides a detailed ultrastructural description of Microcotyle sp. sperm formation.
These findings contribute to the knowledge of reproductive processes in monogenean parasites.