Development of the neurosecretory system of the eyestalk of larval Astacus leptodactylus salinus (Crustacea Decapoda Reptania): photon microscopy

Using the alcian blue-alcian yellow staining method, the neurosecretory system in the eyestalk of the Crayfish Astacus leptodactylus is studied during the period following the first, second, third and fourth moult after hatching. On the basis of their staining affinities, six different cell types ar...

Full description

Saved in:
Bibliographic Details
Published inComptes rendus hebdomadaires des seances de l'Academie des sciences. Serie D: Sciences naturelles Vol. 283; no. 16; p. 1755
Main Authors Zielhorst, A J, van Herp, F
Format Journal Article
LanguageFrench
Published France 20.12.1976
Subjects
Astacoidea - physiology
Eye - ultrastructure
Larva
Metamorphosis, Biological
Ocular Physiological Phenomena
Time Factors
Online AccessGet more information

Cover

More Information
Summary:Using the alcian blue-alcian yellow staining method, the neurosecretory system in the eyestalk of the Crayfish Astacus leptodactylus is studied during the period following the first, second, third and fourth moult after hatching. On the basis of their staining affinities, six different cell types are distinguishable, always spread over the four optic ganglia and varying in number depending upon the moment of sampling. A clearly recognizable sinus gland is present in the period following the third and fourth moult after hatching. During the successive stages, there occurs a shift in staining pattern of the sinus gland, which is also expressed by the variation in number of the various stained cell types.