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Pfiesteria piscicida, toxic dinoflagellate

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cellular organisms - Eukaryota - Alveolata - Dinophyceae - Peridiniales - Pfiesteriaceae - Pfiesteria - Pfiesteria piscicida

  1. General information
  2. Introduction to dinoflagellates
  3. Pfiesteria brief facts
  4. Pfiesteria discovery
  5. Human health implications
  6. Pfiesteria general biology
  7. Pfiesteria life cycle controversy
  8. Pfiesteria toxicity controversy
  9. Pfiesteria piscicida life forms by Burkholder JM, Glasgow HB Jr. (1997)
  10. Pfiesteria piscicida life cycle by Litaker et al. (2002)
  11. References

1. General informaiton

Pfiesteria spp. and Pfiesteria-like organisms belong to class Dinophyceae (synonym Pyrrhophyta), dinoflagellates. Dinoflagellates are organisms whose dominant stage is unarmored or armored flagellated zoospore. Armor consists of thecal (wall) plates. Their arrangment is most important morphological characteristic for taxonomic placement of the dinoflagellates. Pfiesteria spp. are small (~10-20 µm in length) lightly armored heterotrophic dinoflagellates, typically with a dinokaryon (dinoflagellate nucleus) in the hypocone (region of a dinoflagellate cell posterior to the girdle) and food vacuoles in the epicone (region of a dinoflagellate cell anterior to the girdle).

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2. Introduction: dinoflagellates

Dinoflagellate

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3. Pfiesteria brief facts

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4. Pfiesteria discovery

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5. Human health implications

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6. Pfiesteria general biology

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7. Pfiesteria life cycle controversy

8. Pfiesteria toxin controversy

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9. Life forms by Burkholder JM, Glasgow HB Jr. (1997)

The toxic Pfiesteria has 3 distinct polymorphic life cycle stages

Pfiesteria life cycle, reproduction

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10. Life cycle by Litaker et al., (2002)

Main characteristics:

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11. References

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