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Neuropeptides Control Regeneration in Planarians

  • Ch. P. Tiras
  • I. M. Sheiman
Part of the NATO ASI Series book series (NSSA, volume 172)

Abstract

Among existing regulators of regeneration neuropeptides attract particular attention as active modulators of various physiological functions in animals. It seems to be important to systematize the effects of neuropeptides on morphogenesis. Head regeneration of flatworms planarians may serve as a convenient model. The planarians used in the present study belong to the asexual race Ducresia tigrina. Regeneration was estimated using the method of vital computer morphometry based on registration of photocontrast between old (pigmented) and novel (without pigment) body parts of regenerates. Then images of planarians were put into computer memory by digitizer and relative criteria of regeneration were calculated. The criteria were based upon restoration of the initial relations between the lengths of the head and the total body and between the head area and the area of the whole body.

Keywords

Luteinizing Hormone Asexual Reproduction Computer Memory USSR Academy Luteinizing Hormone Release Hormone 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Copyright information

© Plenum Press, New York 1989

Authors and Affiliations

  • Ch. P. Tiras
    • 1
  • I. M. Sheiman
    • 1
  1. 1.Institute of Biological PhysicsUSSR Academy of SciencesPushchino, Moscow RegionU.S.S.R.

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