Differentiation of a Nerve Cell-Battery Cell Complex in Hydra

  • Engelbert Hobmayer
  • Charles N. David
Part of the NATO ASI Series book series (NSSA, volume 188)


Complex cell-cell interactions appeared early in the evolution of metazoans. One of the most interesting examples of such complexity is the battery cell in tentacles of cnidarians. This cell consists of a modified ectodermal epithelial cell which has nematocytes and sensory nerve cells embedded in it. To investigate the formation of this complex, we use the simple fresh water cnidarian Hydra. In this organism, epithelial cells of the gastric region are continuously displaced into tentacles (Campbell, 1967; Dübel et al., 1987), where they interact with sensory nerve cells and nematocytes to form battery cells.


Nerve Cell Interstitial Cell Battery Cell Head Formation Ring Control 
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Copyright information

© Springer Science+Business Media New York 1989

Authors and Affiliations

  • Engelbert Hobmayer
    • 1
  • Charles N. David
    • 1
  1. 1.Zoologisches InstitutUniversität MünchenMünchen 2Federal Republic of Germany

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