| Title: | Olfactory sensory input increases gill ventilation in male round gobies (Neogobius melanostomus) during exposure to steroids |
| Author(s): | Belanger RM; Corkum LD; Li W; Zielinski BS; |
| Address: | "Department of Biological Sciences, University of Windsor, Windsor, ON, Canada N9B 3P4" |
| Journal Title: | Comp Biochem Physiol A Mol Integr Physiol |
| DOI: | 10.1016/j.cbpa.2006.02.027 |
| ISSN/ISBN: | 1095-6433 (Print) 1095-6433 (Linking) |
| Abstract: | "In teleostean fish, ventilation increases have been observed in response to low dissolved oxygen levels, visual stimuli, and gustatory cues. However, olfactory sensory input may also stimulate gill ventilation rate. We investigated whether olfactory sensory input mediates gill ventilation responses, as suggested by the observation that steroidal compounds detected by the olfactory system elicited increases in opercular activity in the perciform teleost, the round goby (Neogobius melanostomus). Close parallels between gill ventilation and olfactory responses, led us to conduct an empirical study that used two different olfactory sensory deprivation techniques to seek a causal relationship between olfactory epithelial activity and hyperventilation. Chemical lesion of olfactory sensory neurons or mechanical occlusion of the nasal cavities inhibited gill ventilation responses of reproductive male round gobies to estrone (1,3,5(10)-estratrien-3-ol-17-one) and to ovarian extracts. This direct evidence demonstrates the role of olfactory sensory input for the gill ventilation response to putative reproductive pheromones and may represent an important regulatory mechanism for odorant sampling during pheromone communication" |
| Keywords: | Animals Copper Sulfate/pharmacology Estrone/*pharmacology Female Gills/*drug effects Gonads/chemistry Male Muscles/chemistry Nasal Obstruction Olfaction Disorders/chemically induced Perciformes/*physiology Pulmonary Ventilation/*drug effects Sensory Depri; |
| Notes: | "MedlineBelanger, Rachelle M Corkum, Lynda D Li, Weiming Zielinski, Barbara S eng Comparative Study Research Support, Non-U.S. Gov't 2006/04/25 Comp Biochem Physiol A Mol Integr Physiol. 2006 Jun; 144(2):196-202. doi: 10.1016/j.cbpa.2006.02.027. Epub 2006 Feb 28" |
