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Trematode transmission patterns.

W L Shoop1

  • 1Merck Institute for Therapeutic Research, Rahway, New Jersey 07065-0900.

The Journal of Parasitology
|February 1, 1988
PubMed
Summary
This summary is machine-generated.

The primitive Trematoda life cycle involves a single mollusc host. Sequential generations within the same mollusc may explain complex Digenea transmission patterns.

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Area of Science:

  • Parasitology
  • Evolutionary Biology
  • Helminthology

Background:

  • The Trematoda phylum, particularly Digenea, exhibits complex life cycles.
  • The primitive transmission pattern in Trematoda involves a single mollusc host.

Purpose of the Study:

  • To investigate the potential for sequential generations within a single mollusc host.
  • To understand how this potential influences the complex life cycles of Digenea.

Main Methods:

  • Comparative analysis of Trematoda transmission patterns.
  • Review of existing literature on Digenea life cycles.
  • Hypothetical modeling of parasite reproduction within a single host.

Main Results:

  • The primitive Trematoda transmission involves a 1-host pattern where aspidocotyleans mature in molluscs.

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  • Progeny typically disseminate to new molluscs, but can remain in the parent's host.
  • Sequential generations within the same mollusc are possible.

    • Conclusions:

    • The capacity for sequential generations in a single mollusc host is a critical factor.
    • This potential likely underpins the intricate transmission and life cycle dynamics observed in Digenea.
    • Understanding this mechanism is key to deciphering Digenea evolution and parasitism.