Hemocyanin Oxygen Binding and the Physiological Ecology of a Range of Talitroidean Amphipods (Crustacea) .2. Effect of Freezing, Inorganic-Ions, and Urate on O2 Binding Invitro. Spicer, J. I. & McMahon, B. R. Journal of Comparative Physiology B-Biochemical Systemic and Environmental Physiology, 161(2):217–223, 1991.
doi  abstract   bibtex   
The effect of variations in [K], [Ca], [Mg], [NaCl], and [urate] on the in vitro O2 binding properties of haemocyanin (Hc) from three talitroidean species, viz. the aquatic Apohyale pugettensis, the semi-terrestrial Megalorchestia californiana, and the semi-/euterrestrial Traskorchestia traskiana were studied. Freezing altered the cooperativity of Hc from A. pugettensis and M. californiana but not T. traskiana. Variations in [NaCl], [K], and [Mg] had no effect on either O2 affinity or cooperativity of the Hc except for A. pugettensis Hc where an increase in [Mg] resulted in an increase in both O2 affinity and cooperativity. Increasing [Ca] or [urate] increased O2 affinity of both A. pugettensis and M. californiana but not T. traskiana Hc. These effects were most marked in A. pugettensis. The results suggest a negative correlation between sensitivity to Hc effectors and the degree of terrestrial adaptation of a particular amphipod species.
@article{spicer_hemocyanin_1991,
	title = {Hemocyanin {Oxygen} {Binding} and the {Physiological} {Ecology} of a {Range} of {Talitroidean} {Amphipods} ({Crustacea}) .2. {Effect} of {Freezing}, {Inorganic}-{Ions}, and {Urate} on {O2} {Binding} {Invitro}},
	volume = {161},
	shorttitle = {Hemocyanin {Oxygen} {Binding} and the {Physiological} {Ecology} of a {Range} of {Talitroidean} {Amphipods} ({Crustacea}) .2. {Effect} of {Freezing}, {Inorganic}-{Ions}, and {Urate} on {O2} {Binding} {Invitro}},
	doi = {10.1007/BF00262887},
	abstract = {The effect of variations in [K], [Ca], [Mg], [NaCl], and [urate] on the in vitro O2 binding properties of haemocyanin (Hc) from three talitroidean species, viz. the aquatic Apohyale pugettensis, the semi-terrestrial Megalorchestia californiana, and the semi-/euterrestrial Traskorchestia traskiana were studied. Freezing altered the cooperativity of Hc from A. pugettensis and M. californiana but not T. traskiana. Variations in [NaCl], [K], and [Mg] had no effect on either O2 affinity or cooperativity of the Hc except for A. pugettensis Hc where an increase in [Mg] resulted in an increase in both O2 affinity and cooperativity. Increasing [Ca] or [urate] increased O2 affinity of both A. pugettensis and M. californiana but not T. traskiana Hc. These effects were most marked in A. pugettensis. The results suggest a negative correlation between sensitivity to Hc effectors and the degree of terrestrial adaptation of a particular amphipod species.},
	number = {2},
	journal = {Journal of Comparative Physiology B-Biochemical Systemic and Environmental Physiology},
	author = {Spicer, J. I. and McMahon, B. R.},
	year = {1991},
	keywords = {Apohyale pugettensis, Megalorchestia californiana, Traskorchestia traskiana},
	pages = {217--223},
}

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