Document Detail

Oxygen sensitive chemoreceptors in the first gill arch of the tadpole, Rana catesbeiana.
MedLine Citation:
PMID:  11760099     Owner:  NLM     Status:  MEDLINE    
Spike frequency was recorded in the nerve of the isolated superfused first gill arch of the bullfrog larva, Rana catesbeiana and the response to different superfusate PO2 was evaluated. In the metamorphic tadpole, spike frequency increased significantly when the superfusate PO2 was decreased (mean +/- SEM): 8.5 +/- 1.6 Hz at 650 Torr, 11.7 +/- 1.9 Hz at 140 Torr, 13.3 +/- 1.8 Hz at 65 Torr, 14.8 +/- 2.4 Hz at 0 Torr (ANOVA, p = 0.0002). The O2 sensitive chemoreceptor stimulants NaCN and almitrine also increased the spike frequency. This study demonstrates the presence of O2 sensitive chemoreceptors in the first gill arch of the tadpole.
C Straus; R J Wilson; J E Remmers
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Publication Detail:
Type:  In Vitro; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Canadian journal of physiology and pharmacology     Volume:  79     ISSN:  0008-4212     ISO Abbreviation:  Can. J. Physiol. Pharmacol.     Publication Date:  2001 Nov 
Date Detail:
Created Date:  2001-12-10     Completed Date:  2002-03-22     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0372712     Medline TA:  Can J Physiol Pharmacol     Country:  Canada    
Other Details:
Languages:  eng     Pagination:  959-62     Citation Subset:  IM    
Department of Medical Physiology, Faculty of Medicine, University of Calgary, AB, Canada.
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MeSH Terms
Chemoreceptor Cells / metabolism*
Gills / growth & development,  innervation,  metabolism*
Neurons, Afferent / physiology
Oxygen / metabolism*
Partial Pressure
Rana catesbeiana
Synaptic Transmission / physiology*
Reg. No./Substance:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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