Buffers in the blood of the snail, helix pomatia L.

Burton, R.F. (1969) Buffers in the blood of the snail, helix pomatia L. Comparative Biochemistry and Physiology, 29(3), pp. 919-930. (doi: 10.1016/0010-406X(69)90994-3) (PMID:5793770)

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1. Blood from the haemocoels of active snails had an average pH of 7·76. In aestivating snails, it tended to contain less bicarbonate to have a higher pCO2, so being more acid (mean: pH 7·51). 2. Blood from the heart was 0·12 pH units more alkaline. 3. The pH of maximum buffering by haemocyanin is lowered in the presence of salts, particularly of calcium or magnesium. 4. In vivo, oxyhaemocyanin has a maximum buffer index of 0·17 m-equiv/pH per g at pH 7·5, contributing little to total buffering but much to carbon dioxide transport. 5. There is a small positive “Haldane effect” that is reversed below pH 7·7.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Burton, Dr Richard
Authors: Burton, R.F.
College/School:College of Medical Veterinary and Life Sciences > School of Life Sciences
Journal Name:Comparative Biochemistry and Physiology
Publisher:Pergamon Press

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