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Neuropeptide Gene Families that Control Reproductive Behaviour and Growth in Molluscs

  • W. P. M. Geraerts
  • A. B. Smit
  • K. W. Li
  • E. Vreugdenhil
  • H. van Heerikhuizen
Chapter

Abstract

Peptidergic neuroendocrine cells play an important role in the control of complex and interrelated life processes, such as growth, reproduction and behaviour. These neurons function as transducer cells; they integrate (neural) signals carrying information on the internal and external environment and convert these signals into peptide messages, which, in a co-ordinated fashion, activate the appropriate target systems of the body to produce a specific response. For a complete understanding of the basic mechanisms underlying the functioning of peptidergic cells, information on many aspects of the cell is needed. To study these different processes (input, integrative capacities, branching patterns, ultrastructural characteristics, biosynthesis and release activities, etc.), a multidisciplinary approach is needed. Unfortunately, the peptidergic systems of most animal groups are not optimally suited for this approach. The identification of the cells in vivo is often impossible; the cells are often too small for specific techniques, such as the intracellular recording of membrane potentials; and furthermore, the physiological and behavioural systems of many animals, especially vertebrates, are very complicated, which seriously hampers studies on the role of peptidergic neurons in the control of physiological processes and behaviour.

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Copyright information

© Macmillan Publishers Limited 1991

Authors and Affiliations

  • W. P. M. Geraerts
    • 1
  • A. B. Smit
    • 1
  • K. W. Li
    • 1
  • E. Vreugdenhil
    • 2
  • H. van Heerikhuizen
    • 2
  1. 1.Biological LaboratoryVrije UniversiteitAmsterdamThe Netherlands
  2. 2.Biochemical LaboratoryVrije UniversiteitAmsterdamThe Netherlands

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