Access of Urinary Nonvolatiles to the Mammalian Vomeronasal Organ

Overview

Journal Science

Specialty Science

Date 1980 Feb 15

PMID 7352288

Citations 33

Authors

C J Wysocki

J L Wellington

G K Beauchamp

Affiliations

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Abstract

Guinea pigs were allowed to investigate urine that contained rhodamine, a nonvolatile fluorescent dye. Guinea pigs given free access to dyed urine exhibited fluorescence in their vomeronasal and septal organs but not on their olfactory epithelium. Fluorescence was not seen when unadulterated urine was presented. Thus compounds of low volatility, which do not reach the olfactory epithelium, may stimulate the vomeronasal system and provide information that is normally not provided by gustation or olfaction.

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