Histochemical characterization and secretory activity of the hypopharyngeal glands in the primitive social wasp Polistes versicolor (Hymenoptera: Vespidae)
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Abstract
Using histochemical techniques, the present work describes the basic histochemical characteristics of the secretion in hypopharyngeal glands of Polistes versicolor (Olivier) and estimates the secretory activity in specimens of different ages. The secretory activity was determined by glandular cell diameter and by the amount of secretion present in the glands. The results did not reveal a relationship between these parameters and the age of the wasps, not allowing us to determine the development cycle of these glands throughout the wasps' life. Also, a relationship between glandular cell diameter and amount of secretion present in the glands was not observed.
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Sociobiology, v. 46, n. 3, p. 637-646, 2005.
