Cytochemical Studies on the Neurosecretory Cells and Neurohypophysis of the Common Garden Lizard, Calotes versicolor (Daudin)

Abstract

1. Using specific stain techniques, almost negative reaction for glycogen and positive reactions for acid and alkaline phosphatases, PAS-reactive substances, basophilic substances, cystine, arginine, mucoprotein, bound lipids and zinc are observed in the hypothalamo-neurohypophysial system of the lizard Calotes versicolor.
2. The PAS-reactive substances are probably mucoprotein-lipoprotein complex.
3. The significance of the positive reaction for arginine and zinc in the neurosecretory system is discussed in the light of current finding on their relationships with the neurosecretory substances.