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Teratocytes and their functions in parasitoids.

Michael R Strand1

  • 1Department of Entomology, University of Georgia, Athens, GA 30602, United States.

Current Opinion in Insect Science
|August 28, 2020
PubMed
Summary

Endoparasitoid wasps release teratocytes into hosts. These cells, originating from wasp embryos, provide nutrients and influence host development, with ongoing research identifying their gene products.

Area of Science:

  • Entomology
  • Developmental Biology
  • Insect-Microbe Interactions

Background:

  • Endoparasitoid wasps (Hymenoptera) are insects that lay eggs inside other insects.
  • Teratocytes are specialized embryonic cells produced by some endoparasitoid wasps.
  • These cells are released into the host hemocoel upon hatching of wasp eggs.

Purpose of the Study:

  • To review wasp taxa producing teratocytes.
  • To summarize teratocyte embryonic origin and growth.
  • To discuss teratocyte functions and gene products.

Main Methods:

  • Literature review of teratocyte-producing wasps.
  • Synthesis of existing data on teratocyte biology.
  • Analysis of transcriptomic and proteomic data for teratocyte gene products.

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Main Results:

  • Teratocytes are produced by diverse Hymenoptera taxa.
  • Teratocytes originate from specific embryonic tissues and exhibit unique growth patterns.
  • Identified teratocyte gene products suggest roles in nutrient provisioning and host manipulation.

Conclusions:

  • Teratocytes are crucial for endoparasitoid success.
  • Further research on teratocyte gene products can reveal novel host-parasite interactions.
  • Teratocytes represent a unique model for studying cell differentiation and function.