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Related Experiment Videos

Schistosoma mansoni: egg morphology and hatchability.

Y Z Xu1, M H Dresden

  • 1Verna and Marrs McLean Department of Biochemistry, Baylor College of Medicine, Houston, Texas 77030.

The Journal of Parasitology
|June 1, 1989
PubMed
Summary

Immature Schistosoma mansoni eggs do not hatch. Mature eggs larger than 160 microns also fail to hatch, indicating size is critical for parasite egg hatching.

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Area of Science:

  • Parasitology
  • Helminthology
  • Schistosomiasis research

Background:

  • Schistosoma mansoni is a parasitic worm causing schistosomiasis.
  • Egg hatching is a critical stage in the parasite's life cycle.
  • Understanding factors influencing egg hatching is vital for disease control.

Purpose of the Study:

  • To determine the relationship between Schistosoma mansoni egg size and hatching success.
  • To identify specific egg size thresholds that inhibit hatching.

Main Methods:

  • Isolation and microscopic staging of Schistosoma mansoni eggs based on size.
  • Incubation of staged eggs to assess hatching.
  • Calculation of hatching percentages for different egg size groups.

Main Results:

  • Immature Schistosoma mansoni eggs demonstrated no hatching capability.
  • Mature Schistosoma mansoni eggs exceeding 160 microns in size also failed to hatch.
  • Egg size is a significant determinant of hatching viability.

Conclusions:

  • Egg maturity and size are crucial factors for successful Schistosoma mansoni hatching.
  • Schistosoma mansoni eggs larger than 160 microns are non-viable for hatching.
  • These findings contribute to understanding Schistosoma mansoni egg biology and may inform control strategies.

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