Plasmodium - Diagnostic Characteristics of The Genus Plasmodium

Diagnostic Characteristics of The Genus Plasmodium

  • Merogony occurs both in erythrocytes and other tissues
  • Merozoites, schizonts or gametocytes can be seen within erythrocytes and may displace the host nucleus
  • Merozoites have a "signet-ring" appearance due to a large vacuole that forces the parasite’s nucleus to one pole
  • Schizonts are round to oval inclusions that contain the deeply staining merozoites
  • Forms gamonts in erythrocytes
  • Gametocytes are 'halter-shaped' similar to Haemoproteus but the pigment granules are more confined
  • Hemozoin is present
  • Vectors are either mosquitos or sandflies
  • Vertebrate hosts include mammals, birds and reptiles

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