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Keywords: oxygen affinity
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Journal Articles
J Exp Biol (2019) 222 (12): jeb200279.
Published: 21 June 2019
... Change Enthalpy Oxygen affinity P50 Phenotypic plasticity Environmental temperature has been referred to as the ecological master factor that profoundly affects the life of all ectotherms, where high, stable body temperatures independent of the environment cannot be achieved by metabolic...
Journal Articles
J Exp Biol (2015) 218 (15): 2402–2409.
Published: 01 August 2015
... 18 5 2015 © 2015. Published by The Company of Biologists Ltd 2015 Highlighted Article: Snow leopards are high-altitude specialists that survive and function in low-oxygen conditions but, surprisingly, they possess characteristically feline hemoglobins with low-oxygen affinities and...
Includes: Supplementary data
Journal Articles
J Exp Biol (2013) 216 (3): 369–378.
Published: 01 February 2013
... ). Mitochondrial oxygen affinity, respiratory flux control and excess capacity of cytochrome c oxidase . J. Exp. Biol.   201 , 1129 - 1139 . Gnaiger   E. , Kuznetsov   A. V. , Schneeberger   S. , Seiler   R. , Brandacher   G. , Steurer   W. , Margreiter   R. ( 2000 ). Mitochondria in...
Journal Articles
J Exp Biol (2012) 215 (11): 1938–1943.
Published: 01 June 2012
... physiology. * Author for correspondence ( fbj@biology.sdu.dk ) 16 2 2012 © 2012. 2012 diving mammal oxygen affinity buffer value erythrocyte anion exchange hemoglobin nitrite reduction The harbor porpoise is a relatively abundant species in the waters surrounding Denmark...
Journal Articles
J Exp Biol (2003) 206 (8): 1389–1395.
Published: 15 April 2003
... affinity was investigated by applying the osmotic stress method to purified hemoglobins as well as intact red blood cells. Oxygen affinity decreases when water activity increases, indicating that water molecules stabilize the low-affinity,oligomeric state of the hemoglobin. This effect is opposite to that...
Journal Articles
J Exp Biol (2002) 205 (17): 2725–2736.
Published: 01 September 2002
... ) 30 5 2002 © The Company of Biologists Limited 2002 2002 exercise ventilation oxygen consumption oxygen transport blood gas breathing pattern reptile Varanus mertensi lung diffusion P 50 oxygen affinity Metabolic rate, or more precisely, the rate of oxygen...
Journal Articles
J Exp Biol (1990) 152 (1): 149–166.
Published: 01 September 1990
...FRANK B. JENSEN Red cell function was studied in carp by a combination of in vivo and in vitro experiments with nitrite as the perturbing agent. In vivo accumulation of nitrite caused a marked increase in the red cell methaemoglobin content, and reduced the mean cellular volume. The oxygen affinity...
Journal Articles
J Exp Biol (1989) 147 (1): 133–146.
Published: 01 November 1989
... ). Haemocyanin oxygen-affinity, measured in vitro on haemolymph samples drawn from hypoxic prawns, increased slightly during the first 3h of hypoxia acclimation (ΔP 50 =0.8-0.9 kPa at pH 7.6), returning to near normoxic control values after a 48 h hypoxic exposure. The respective roles of L-lactate and urate in...
Journal Articles
J Exp Biol (1988) 140 (1): 437–453.
Published: 01 November 1988
...NANCY J. BERNER; ROLF L. INGERMANN Molecular mechanisms that may explain why oxygen affinity is higher in foetal than in maternal red blood cells were studied in the viviparous garter snake, Thamnophis elegans (Baird and Girard). Foetal and adult haemoglobins were structurally indistinguishable, as...
Journal Articles
J Exp Biol (1987) 133 (1): 339–352.
Published: 01 November 1987
... addition, oxygen equilibrium curves were constructed for some of the solutions to verify that the haemocyanin oxygen affinity remained sensitive to L-lactate and to determine whether the haemocyanin was functionally similar to that used in previous investigations. With 17 mmol 1 −1 total Ca 2+ and...
Journal Articles
J Exp Biol (1987) 130 (1): 27–38.
Published: 01 July 1987
...JAMES W. HICKS; ATSUSHI ISHIMATSU; NORBERT HEISLER Oxygen and carbon dioxide dissociation curves were constructed for the blood of the Nile monitor lizard, Varanus niloticus , acclimated for 12h at 25 and 35°C. The oxygen affinity of Varanus blood was low when Pco 2 w a s in the range of in vivo...
Journal Articles
J Exp Biol (1986) 121 (1): 327–337.
Published: 01 March 1986
... respectively. Changes in the concentrations of these ions could also be correlated with changes in haemocyanin oxygen affinity. Reimmersion and recovery returned all parameters to near control values. The effect, on haemocyanin oxygen affinity, of the Bohr shift alone was calculated and compared with the...
Journal Articles
J Exp Biol (1986) 121 (1): 315–326.
Published: 01 March 1986
... 6.4 Torr at the same temperature and pH. The oxygen affinity of the dialysed haemolymph can be increased markedly by increased concentrations of L-lactate and to a greater extent by elevated concentrations of calcium ions. In the dialysed preparation, the potentiating effects of L-lactate and Ca 2+ on...
Journal Articles
J Exp Biol (1985) 117 (1): 119–132.
Published: 01 July 1985
...S. MORRIS; C. R. BRIDGES The oxygen affinity of the haemocyanin in the supralittoral crab Ocypode saratan was investigated at temperatures between 20 and 35 °C. The effect of L-lactate on dialysed and undialysed haemolymph oxygen affinity was also examined. In general, the temperature sensitivity...