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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
... characteristic absorbance spectra for haemolymph containing haemocyanin with an oxygenation-dependent peak at 347 nm ( O. vulgaris ; Fig. 1A ), and multiple responsive peaks at 540, 575, 412 and 335 nm for oxygenated haemoglobin-bearing blood and at 553, 427 and 366 nm for deoxygenated haemoglobin-bearing blood...
Includes: Supplementary data
Journal Articles
Journal Articles
J Exp Biol (2001) 204 (5): 1033–1038.
Published: 1 March 2001
...Michael A. Menze; Nadja Hellmann; Heinz Decker; Manfred K. Grieshaber ABSTRACT Haemocyanin serves as an oxygen carrier in the haemolymph of decapod crustaceans. The oxygen-binding behaviour of the pigment is modulated by the two major anaerobic metabolites, L-lactate and urate. The binding...
Journal Articles
J Exp Biol (2000) 203 (12): 1777–1782.
Published: 15 June 2000
...Heinz Decker; Nora Terwilliger ABSTRACT Two closely related copper proteins, phenoloxidase and haemocyanin, are known to be involved in different physiological functions such as the primary immune response and oxygen transport. Although the proteins differ structurally, they have the same active...
Journal Articles
Journal Articles
J Exp Biol (1994) 188 (1): 235–256.
Published: 1 March 1994
... periods of up to 45 min. During this exercise period, blood gas measurements were made on venous, pulmonary and arterial samples to assess the function of the lungs in gas exchange and the performance of the circulatory system in gas transport and to determine the role and importance of the haemocyanin...
Journal Articles
Journal Articles
J Exp Biol (1991) 157 (1): 523–540.
Published: 1 May 1991
...C. Agnisola; D. F. Houlihan ABSTRACT 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...
Journal Articles
Journal Articles
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): 477–491.
Published: 1 November 1988
... of temperature on haemocyanin oxygen-affinity was pronounced (ΔH = –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 27 mmHg). remained constant at 10–12 mmHg. 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 mmol l −1...
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...
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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...