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Protozoan Cysts and Spores

  1. John O Corliss

Published Online: 19 APR 2001

DOI: 10.1038/npg.els.0001934



How to Cite

Corliss, J. O. 2001. Protozoan Cysts and Spores. eLS. .

Author Information

  1. University of Maryland, College Park, Maryland, USA

Publication History

  1. Published Online: 19 APR 2001


Cysts are typically resting, dormant and/or resistant stages in the full life cycle of many protozoan species, sometimes playing a role in dispersal of the organism. Spores are a stage commonly associated with multiplication and propagation of a protozoan organism, sometimes having a resistant wall and often, in parasitic forms, serving as an obligate stage in the life cycle.


  • morphology;
  • physiology;
  • cryptobiosis;
  • encystation;
  • excystation;
  • protozoa;
  • algae;
  • protists;
  • roles in life cycle