Heat Shock Induces Developmental Anomalies in Artemia

  • A. Hernandorena
Part of the NATO ASI Series book series (NSSA, volume 174)


The morphogenesis of supernumerary appendages on otherwise apodous abdominal segments can be induced in Artemia by specific nutritional conditions imposed on young feeding larvae[1–6], This manipulation, qualified as startling[7], was difficult to integrate into the context of our knowledge on morphogenesis. Artemia larvae start feeding after having performed three molts at the expense of vitelline reserves. During early postembryonic development, that is after hatching and before feeding, they are not sensitive to nutritional conditions and were therefore submitted to abnormal thermal conditions. Heat shocks delivered to newly hatched nauplii have long term effects on subsequent development. Now, it becomes easier to conceive that nutritional conditions imposed on older feeding larval stages may have morphogenetic effects.


Heat Shock Abdominal Segment Homeotic Gene Artemia Salina Morphological Anomaly 
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Copyright information

© Plenum Press, New York 1989

Authors and Affiliations

  • A. Hernandorena
    • 1
  1. 1.Laboratoire du Museum National d’Histoire NaturellePlateau de l’AtalayeBiarritz CedexFrance

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