PMID: 9433799Jan 20, 1998Paper

Oxygen uptake in bullfrog tadpoles (Rana catesbeiana)

The Journal of Experimental Zoology
W C CrowderG R Ultsch

Abstract

Weight-specific rates of aquatic oxygen consumption (VO2, microliter O2 g-1 h-1) at 23 degrees C were determined for water-breathing (e.g., forcibly submerged) bullfrog tadpoles as functions of stage of development and O2 tension (PO2). The VO2 at an O2 tension near that of air-saturated water (PO2 approximately 154 mmHg) was independent of stage of development throughout the premetamorphic stages (I-XIX). Aquatic VO2 increased by approximately 24%, relative to the average of the preceding stages, during the first metamorphic stage (XX) and thereafter decreased steadily with developmental stage. The decline in aquatic VO2 resulted in a shift from facultative air-breathing to obligate air-breathing at about stage XXII. Changes with developmental stage of the critical O2 tension (Pc) corresponded to changes in aquatic VO2. The Pc was low and relatively constant at 29-36 mmHg through stage XVI, started to increase (to 51 mmHg) during the final premetamorphic stages (XVII-XIX), reached a value near air saturation (159 mmHg) at stage XXII, and was in excess of air saturation for stages XXIII-XXV. The ability to survive continuous submergence paralleled the changes in Pc, as tadpoles could survive in air-saturated water without acces...Continue Reading

References

Dec 23, 1998·Journal of Comparative Physiology. A, Sensory, Neural, and Behavioral Physiology·F Y Zhao, A Roberts
Jan 1, 1994·The Journal of Experimental Zoology·R C BruceR J Wassersug
Jan 1, 1994·Canadian Journal of Zoology·S Pronych, R Wassersug
Mar 3, 1959·The Journal of Physiology·K FLETCHER, N B MYANT
Jan 1, 1946·The Anatomical Record·A C TAYLOR, J J KOLLROS

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Citations

Feb 12, 2011·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·Cosima PorteusWilliam K Milsom
Oct 14, 2006·Annual Review of Physiology·Philip E Bickler, Leslie T Buck
Jun 4, 2010·Antioxidants & Redox Signaling·Bruno TotaMaria Carmela Cerra
Oct 30, 2004·Laterality·Richard J Wassersug, Masamichi Yamashita
Apr 27, 2010·Comparative Biochemistry and Physiology. Toxicology & Pharmacology : CBP·Nicole M PalenskeEdward M Dzialowski
Jun 11, 2009·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Sarah A Orlofske, William A Hopkins
Oct 16, 2015·Comparative Biochemistry and Physiology. Part D, Genomics & Proteomics·Nik VeldhoenCaren C Helbing
Oct 9, 2004·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Gordon R UltschDonald C Jackson
Sep 5, 2006·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Luciane H Gargaglioni, William K Milsom
Jul 19, 2005·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Michael S HedrickKristy L Jessop
Dec 27, 2012·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·S A OrlofskeW A Hopkins
Oct 28, 2016·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Sarah A OrlofskeWilliam A Hopkins
Apr 20, 2017·Environmental Science & Technology·Chantal M LanctôtSteven D Melvin
May 26, 2005·Respiratory Physiology & Neurobiology·Michael S Hedrick
Jan 27, 2004·Journal of Experimental Zoology. Part A, Comparative Experimental Biology·Gordon R UltschE Ray Stewart
Jul 22, 2017·The Journal of Experimental Biology·Lucas J KirschmanRobin W Warne
Oct 26, 2018·Developmental Neurobiology·William M TraskRichard J A Wilson
Jul 14, 2005·Journal of Experimental Zoology. Part A, Comparative Experimental Biology·Gregory S Pryor, Karen A Bjorndal
May 10, 2012·Izvestiia Akademii nauk. Seriia biologicheskaia·I G VladimirovaT A Alekseeva
Aug 7, 2020·Bulletin of Environmental Contamination and Toxicology·Wenya ZhangHao Sun
May 1, 2018·Frontiers in Physiology·Alfonsina GattusoSandra Imbrogno
Jan 7, 2005·The Journal of Experimental Biology·Rachel E WinmillMichael S Hedrick
Apr 20, 2006·The Journal of Experimental Biology·Silvia Cristina R de Souza, Claudia M Kuribara
Feb 8, 2005·The Journal of Experimental Biology·Michael S HedrickPhilip E Bickler
Nov 22, 2002·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Lauren J ChapmanAmanda E Rosenberger
Apr 23, 2003·Respiratory Physiology & Neurobiology·Edith SimardRichard Kinkead

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