Abstract

ABSTRACT Ten neurosecretory cells can be found in each of the first 5 abdominal ganglia of the larva of L. caesar L. These are arranged as two lateral pairs and a single ventral cell in each half of a ganglion. Half the lateral cells go through a cycle of secretory activity before pupation in developing larvae. In diapause larvae while half the lateral cells are in a resting phase the remainder are in various stages of secretory activity. The destination of the product is not known. Chemically this product is, unlike that of brain neurosecretory cells, PAS-positive. It may contain a glyco-or phospholipid or lipoprotein component.

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