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Schistosome female reproductive development.

P T Loverde1, L Chen

  • 1Department of Microbiology, State University of New York, Buffalo, NY 14214, USA.

Parasitology Today (Personal Ed.)
|November 1, 1991
PubMed
Summary

Male schistosomes are essential for female parasite development and reproduction. Their presence regulates female growth, reproductive maturity, and gene expression, particularly in the vitelline gland.

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Area of Science:

  • Parasitology
  • Reproductive Biology
  • Molecular Biology

Background:

  • Schistosome parasites exhibit separate sexes, a unique evolutionary trait.
  • The male schistosome plays a crucial role in regulating female parasite development and reproductive maturity.
  • This male-female interplay has been recognized for over 50 years.

Purpose of the Study:

  • To review the established and molecular evidence for male regulation of female schistosome development.
  • To highlight the role of the male parasite in stimulating vitelline gland development and maintaining female maturity.

Main Methods:

  • Review of classical and experimental studies on schistosome sexual dimorphism.
  • Analysis of recent molecular studies investigating gene expression in female schistosomes.

Main Results:

  • The presence of the male schistosome is necessary for initiating and maintaining female development.
  • Males provide a stimulus crucial for vitelline gland development, which supplies egg nutrients and shell precursors.
  • Molecular studies confirm that male presence developmentally regulates tissue-specific gene expression in females.

Conclusions:

  • The male schistosome is indispensable for female reproductive success in this parasite.
  • Understanding this unique sexual interaction provides insights into parasite reproductive strategies.
  • Further research can leverage molecular data to explore the mechanisms of male-mediated regulation.

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