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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: 1 August 2015
... ; Weber and Fago, 2004 ; Weber, 2007 ). Felidae Oxygen affinity Amino acid substitution Blood-oxygen transport Allosteric regulation Highlighted Article: Snow leopards are high-altitude specialists that survive and function in low-oxygen conditions but, surprisingly, they possess...
Includes: Supplementary data
Journal Articles
J Exp Biol (2013) 216 (3): 369–378.
Published: 1 February 2013
... and potential interactions upon exposure to a progressive low-O 2 stimulus preconditioning Sparidae oxygen affinity metabolism swimming activity haemoglobin mitochondria respiration The prevalence of low oxygen (environmental hypoxia) has increased in coastal regions ( Diaz...
Journal Articles
J Exp Biol (2012) 215 (11): 1938–1943.
Published: 1 June 2012
.... * 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 ( Hammond et al...
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...
Journal Articles
J Exp Biol (2002) 205 (17): 2725–2736.
Published: 1 September 2002
... pattern reptile Varanus mertensi lung diffusion P 50 oxygen affinity Metabolic rate, or more precisely, the rate of oxygen consumption( V̇ O 2 ), is set by structural and functional parameters at each point in the oxygen pathway from lungs to the mitochondria in skeletal muscle...
Journal Articles
J Exp Biol (1996) 199 (9): 2061–2070.
Published: 1 September 1996
...Jay K. Herman; Rolf L. Ingermann ABSTRACT Red cell oxygen affinity, red cell nucleoside triphosphate (NTP) levels and blood oxygen-carrying capacity were determined for male, nonpregnant and pregnant female, and fetal garter snakes Thamnophis elegans exposed to hypoxia (5 % oxygen) and hyperoxia...
Journal Articles
J Exp Biol (1994) 188 (1): 103–114.
Published: 1 March 1994
... and purified green turtle hatchling Hb that distinguish it from adult Hb are a high affinity for oxygen and marked sensitivity to organic phosphate modulators. Hatchling erythrocytes also contain higher concentrations of ATP and 2,3-diphosphoglyceric acid, but their oxygen affinity is indistinguishable from...
Journal Articles
J Exp Biol (1992) 170 (1): 257–263.
Published: 1 September 1992
...J. Forgue; J.-P. Truchot; J.-C. Massabuau * To whom reprint requests should be addressed. 6 5 1992 © 1992 by Company of Biologists 1992 oxygen affinity blood gas transport crab fish Silurus glanis mollusc Anodonta cygnea Fig. 2. (A) Arterial O 2...
Journal Articles
J Exp Biol (1991) 157 (1): 579–584.
Published: 1 May 1991
... by Company of Biologists 1991 Reptilia Thamnophis elegans ATP neonate parturition erythrocyte oxygen affinity The red cells of the T. elegans fetus have a higher affinity for oxygen than do maternal cells ( Ingermann et al . 1991 ). This difference in affinities appears to be due...
Journal Articles
J Exp Biol (1991) 156 (1): 399–406.
Published: 1 March 1991
...Rolf L. Ingermann; Nancy J. Berner; Frances R. Ragsdale ABSTRACT The oxygen affinity of red cell suspensions from fetal garter snakes was higher than that of cell suspensions from their mothers. This difference appeared to be due to different concentrations of nucleoside triphosphate (NTP...
Journal Articles
J Exp Biol (1990) 152 (1): 149–166.
Published: 1 September 1990
... fraction of the haemoglobin molecules assumes an R-like quaternary structure. 10 04 1990 © 1990 by Company of Biologists 1990 red cell K + release red cell pH oxygen affinity methaemoglobin nitrite oxygenation-dependent ion transport Freshwater fish accumulate nitrite...
Journal Articles
J Exp Biol (1989) 147 (1): 133–146.
Published: 1 November 1989
...F. Lallier; J. P. Truchot ABSTRACT The addition of either L-lactate or urate to dialysed haemolymph from the prawn Penaeus japonicus (Bate) increased the in vitro haemocyanin oxygen affinity. The quantitative values of these two effects, expressed as ΔlogP 50 / Δlog[effector], were found to be −0...
Journal Articles
J Exp Biol (1988) 140 (1): 437–453.
Published: 1 November 1988
...Nancy J. Berner; Rolf L. Ingermann ABSTRACT 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...
Journal Articles
J Exp Biol (1988) 138 (1): 535–539.
Published: 1 September 1988
...S. Morris 14 4 1988 © 1988 by Company of Biologists 1988 haemocyanin freezing oxygen affinity association state The addition of protease inhibitors and antibiotics provides a valuable means of stabilizing proteins in solution but this is less desirable...
Journal Articles
J Exp Biol (1987) 133 (1): 339–352.
Published: 1 November 1987
...-lactate. In 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...
Journal Articles
J Exp Biol (1987) 130 (1): 27–38.
Published: 1 July 1987
...James W. Hicks; Atsushi Ishimatsu; Norbert Heisler ABSTRACT 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 was in the range of in vivo...
Journal Articles
J Exp Biol (1986) 121 (1): 315–326.
Published: 1 March 1986
... of 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...
Journal Articles
J Exp Biol (1986) 121 (1): 327–337.
Published: 1 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...
Journal Articles
J Exp Biol (1985) 117 (1): 119–132.
Published: 1 July 1985
...S. Morris; C. R. Bridges ABSTRACT 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...