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Keywords: haemocyanin
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Journal Articles
J Exp Biol (2021) 224 (15): jeb242220.
Published: 29 July 2021
... levels of haemocyanin exhibited by tidal crabs allowed them to maintain oxygen transport and buffer pH changes during emersion . This suggests that acclimation of C. maenas to submerged conditions results in a loss of important physiological mechanisms that enable it to tolerate emersion. The results...
Journal Articles
J Exp Biol (2014) 217 (9): 1430–1436.
Published: 1 May 2014
... to data interpretation and manuscript editing. Competing interests The authors declare no competing financial interests. 18 6 2013 9 1 2014 © 2014. Published by The Company of Biologists Ltd 2014 Diffusion chamber Oxygen equilibrium curve Hemocyanin Haemocyanin...
Includes: Supplementary data
Journal Articles
J Exp Biol (2002) 205 (2): 253–263.
Published: 15 January 2002
...Jane W. Behrens; John P. Elias; H. Harry Taylor; Roy E. Weber SUMMARY We investigated divalent cation and anaerobic end-product concentrations and the interactive effects of these substances and pH on haemocyanin oxygen-binding (Hc-O 2 ) in the New Zealand abalone Haliotis iris . During 24 h...
Journal Articles
In collection:
Cardiology articles
J Exp Biol (1991) 157 (1): 523–540.
Published: 1 May 1991
...C. AGNISOLA; D. F. HOULIHAN The effect of increasing oxygen supply on the perfused systemic heart of Octopus vulgaris (Lam.) by using oxygenated or haemocyanin-containing perfusates was investigated. Providing aerated blood or seawater solutions of haemocyanin that were comparable with blood...
Journal Articles
J Exp Biol (1990) 152 (1): 167–187.
Published: 1 September 1990
...N. K. SANDERS; J. J. CHILDRESS Present address and address for correspondence: Bamfield Marine Station, Bamfield, B.C. V0R 1B0, Canada. The effects of temperature and pH on haemocyanin oxygen-binding were compared for three species of diurnally vertically migrating and two species of non-migrating...
Journal Articles
J Exp Biol (1990) 149 (1): 417–424.
Published: 1 March 1990
... by temperature (A/fapp^-SS^kJmor1) , while at 24 %o there is almost no temperature sensitivity (A/f a p p<-18.8kJmor1) . Introduction It has been established that inorganic ions, such as heterotropic allosteric ligands, may control the oxygen-binding properties of haemocyanin-containing blood from marine...
Journal Articles
J Exp Biol (1989) 147 (1): 133–146.
Published: 1 November 1989
...F. LALLIER; J. P. TRUCHOT The addition of either L-lactate or urate to dialysed haemolymph from the prawn Penaeus japonicus (Bate) increased the in vitro haemocyanin oxygenaffinity. The quantitative values of these two effects, expressed as ΔlogP 50 /Δlog[effector], were found to be −0.077 for L...
Journal Articles
J Exp Biol (1988) 140 (1): 477–491.
Published: 1 November 1988
... of temperature on haemocyanin oxygen-affinity was pronounced (TH = −39 kJ mol −1 ) and was considered to represent the absence of any specific adaptation to environmental temperature. The Bohr effect was large for a terrestrial decapod (φ = −0.60), although reduced at low pH. Changes in [Ca] had a significant...
Journal Articles
J Exp Biol (1988) 140 (1): 493–509.
Published: 1 November 1988
... crabs (43.8 mmHg; 1 mmHg = 133.3 Pa) but fell during exercise (to 27mmHg). Pv O 2 remained constant at 10–12 mmHg. Pa CO 2 rose substantially during exercise (from 7.1 to 14.6mmHg). Haemocyanin delivered 90% of oxygen in resting crabs rising to 97%following exercise. Oxygen delivery at rest was 0.46...
Journal Articles
J Exp Biol (1987) 133 (1): 339–352.
Published: 1 November 1987
...S. MORRIS; C.R. BRIDGES; M. K. GRIESHABER The binding of Ca 2+ to the haemocyanin of the crayfish Austropotamobius pallipes was investigated. The amount of bound Ca 2+ was determined using an ultrafiltration technique to produce haemocyanin-free solutions, the Ca 2+ concentration of which could...
Journal Articles
J Exp Biol (1986) 121 (1): 315–326.
Published: 1 March 1986
...+ on haemocyanin oxygen affinity were found to be interdependent. Elevating the concentration of one of these two ions reduced the effect of the other. The increase in the oxygen affinity of the haemocyanin brought about by elevated Ca 2+ and L-lactate was insufficient to account for the difference in affinity...
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 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...