Sensory receptors involved in the feeding behaviour of the rotifer Asplanchna brightwelli

  • Elizabeth Wurdak
  • Pierre Clément
  • Jacqueline Amsellem
Conference paper
Part of the Developments in Hydrobiology book series (DIHY, volume 14)


A study of the anterior sensory receptors of male and female Asplanchna brightwelli by scanning electron microscopy reveals some important differences in the region surrounding the mouth. In the male, the ventrolateral sensory bristles, the pseudotrochus, the inner and the outer buccal tufts and the mastax receptors are absent. The oral receptors are reduced.

Transmission electron microscopy of these receptors shows that they consist of ciliated sensory cells surrounded by epithelial supporting cells. The distal ends of the cilia of the mastax receptors are modified; the cilia of the other receptors differ only in their length and rootlet structure from the locomotor cilia of the cingulum.

A consideration of the feeding behaviour of Asplanchna leads us to suppose that these sensory cilia function in mechanoreception and in chemoreception.


rotifers sensory receptor feeding behavior scanning electron microscopy transmission electron microscopy 


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Copyright information

© Dr W. Junk Publishers, The Hague 1983

Authors and Affiliations

  • Elizabeth Wurdak
    • 1
  • Pierre Clément
    • 1
  • Jacqueline Amsellem
    • 1
  1. 1.Laboratoire d’Histologie et Biologie Tissulaire, L.A. C.N.R.S. 244 and R.C.P. C.N.R.S. 657Université Lyon IVilleurbanneFrance

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