Carbon dioxide and ammonia metabolism and exchange

Biochemistry and Molecular Biology of Fishes

Volumn 1, Issue C, 1991, Pages 181-207

  Walsh, Patrick J ^a   Henry, Raymond P ^b  

^a UNIVERSITY OF MIAMI   (United States)

^b AUBURN UNIVERSITY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 85013555897     PISSN: 18730140     EISSN: None     Source Type: Book Series    
DOI: 10.1016/B978-0-444-89124-2.50012-9     Document Type: Chapter

References (133)

1. Aickin, C.C., Intracellular pH regulation by vertebrate muscle. Annu. Rev. Physiol 48 (1986), 349–361.
2. Atkinson, D.E., Camien, M.N., The role of urea synthesis in the removal of metabolic bicarbonate and the regulation of blood pH. Curr. Top. Cell. Regul 21 (1982), 261–302.
3. Ballantyne, J.S., Moyes, C.D., Moon, T.W., Compatibility and counteracting solutes and the evolution of ion and osmoregulation. Can. J. Zool 65 (1987), 1883–1888.
4. Ballatori, N., Boyer, J.L., Characteristics of L-alanine uptake in freshly isolated hepatocytes of elasmobranch Raja erinacea. Am. J. Physiol 254 (1988), R801–R808.
5. Boutilier, R.G., Heming, T.A., Iwama, G.K., Physicochemical parameters for use in fish respiratory physiology. Hoar, W., Randall, D.J., (eds.) Fish Physiology, Vol. XA, 1984, Academic Press, New York, 401–429.
6. Boyer, P.D., (eds.), 3rd edn. The Enzymes, Vols. I – XVIII, 1970–1987, Academic Press, Orlando, FL.
7. Cameron, J.N., Branchial ion uptake in Arctic grayling: resting values and effects of acid-base disturbance. J. Exp. Biol 64 (1976), 711–725.
8. 2 in water-breathing animals — a short review. Mar. Biol. Lett 1 (1979), 3–13.
9. Cameron, J.N., The Respiratory Physiology of Animals, 1989, Oxford University Press, New York.
10. Cameron, J.N., Heisler, N., Studies of ammonia in the rainbow trout: physico-chemical parameters, acid-base behavior and respiratory clearance. J. Exp. Biol 105 (1983), 107–125.
11. Cameron, J.N., Heisler, N., Ammonia transfer across fish gills: a review. Gilles, R., (eds.) Circulation, Respiration and Metabolism, 1985, Springer-Verlag, Berlin, 91–100.
12. Cameron, J.N., Iwama, G.K., Compensation of progressive hypercapnia in channel catfish and blue crabs. J. Exp. Biol 133 (1987), 183–197.
13. Cameron, J.N., Iwama, G.K., Compromises between ionic regulation and acid-base regulation in aquatic animals. Can. J. Zool 67 (1989), 3078–3084.
14. Campbell, J.W., Nitrogen excretion. Prosser, C.L., (eds.) Comparative Animal Physiology, 3rd edn., 1973, W.B. Saunders, Philadelphia, 279–316.
15. Casey, C.A., Perlman, D.F., Vorhaben, J.E., Campbell, J.W., Hepatic ammoniagenesis in the channel catfish. Ictalurus punctatus. Mol. Physiol 3 (1983), 107–126.
16. Cherniack, N.S., Longobardo, G.S., Fishman, A.P., The behavior of the carbon dioxide stores of the body during unsteady states. Nahas, G., Schaefer, K.E., (eds.) Carbon Dioxide and Metabolic Regulations, 1974, Springer-Verlag, New York, 324–338.
17. Cheung, C.-W., Cohen, N.S., Raijman, L., Channeling of urea cycle intermediates in situ in permeabilized hepatocytes. J. Biol. Chem 264 (1989), 4038–4044.
18. Cohen, N.S., Kyan, F.S., Cheung, C.-W., Raijman, L., The apparent Km of ammonia for carbamoyl phosphate synthetase (ammonia). in situ. Biochem. J. 229 (1985), 205–211.
19. 2’ utilized by phosphoenolpyruvate carboxykinase, carboxytransphosphorylase, and pyruvate carboxylase. J. Biol. Chem 243 (1968), 3857–3863.
20. Coulson, R.A., Herbert, J.D., A role for carbonic anhydrase in intermediary metabolism. Ann. N.Y. Acad. Sci 429 (1984), 505–515.
21. Dejours, P., Armand, J., Beekenkamp, H., La toxicité de l'ammoniac est fonction du pH de l'eau. Étude chez la salamandre Pleurodeles waltl. C.R. Acad. Sci. Paris 308 (1989), 55–60 Série III:.
22. Dekowski, S.A., Rybicki, A., Drikamer, L.K., A tyrosine kinase associated with the red cell membrane phosphorylates band 3. J. Biol. Chem 258 (1983), 2750–2753.
23. + exchangers in lymphocytes. J. Biol. Chem 262 (1987), 3626–3632.
24. Dobson, G.P., Hochachka, P.W., Role of glycolysis in adenylate depletion and repletion during work and recovery in teleost white muscle. J. Exp. Biol 129 (1987), 125–140.
25. Dodgson, S.J., Forster, R.E., Inhibition of CA V decreases glucose synthesis from pyruvate. Arch. Biochem. Biophys 251 (1986), 198–204.
26. Dodgson, S.J., Forster, R.E., Carbonic anhydrase inhibition results in decreased urea production by hepatocytes. J. Appl. Physiol 60 (1986), 646–652.
27. Drikamer, L.K., Fragmentation of the band 3 polypeptide from the human erythrocyte membranes. Identification of regions likely to interact with the lipid bilayer. J. Biol. Chem 252 (1977), 6909–6917.
28. Edsall, J.T., Carbon dioxide, carbonic acid and bicarbonate ion: physical properties and kinetics of interconversion. Forster, R.E., Edsall, J.T., Otis, A.B., Roughton, F.J.W., (eds.) CO2: Chemical, Biochemical and Physiological Aspects, 1969, NASA, Washington, DC Scientific Publication no. 188.
29. 2 exchange in the rabbit lung. J. Appl. Physiol 51 (1981), 1136–1144.
30. Elder, J.A., Lehninger, A.L., Respiration dependent transport of carbon dioxide into rat liver mitochondria. Biochemistry 12 (1973), 976–982.
31. Ellory, J.C., Wolowyk, M.W., Young, J.D., Hagfish (Eptatretus stouti) erythrocytes show minimal chloride transport activity. J. Exp. Biol 129 (1987), 377–383.
32. Evans, D.H., Cameron, J.N., Gill ammonia transport. J. Exp. Zool 239 (1986), 17–23.
33. Evans, D.H., More, K.J., Robbins, S.L., Modes of ammonia transport across the gill epithelium of the marine teleost fish. Opsanus beta. J. Exp. Biol 144 (1989), 339–356.
34. Falke, J.J., Chan, S.I., Molecular mechanisms of band 3 inhibitors. 3. Translocation inhibitors. Biochemistry 25 (1986), 7899–7906.
35. Ferraris, R.P., Ahearn, G.A., Sugar and amino acid transport in fish intestine. Comp. Biochem. Physiol 77A (1984), 397–413.
36. Fritz, B.J.C. Massabuau and B. Ambroise. Physico-chemical characteristics of surface waters and hydrological behaviour of a small granitic basin (Vosges massif, France): annual and daily variations. In Hydrochemical Balances of Freshwater Systems, edited by E. Eriksson, IAHS-AISH Publication no. 150, 1984, pp. 249–261.
37. Gleeson, T.T., Glycogen synthesis from lactate in skeletal muscle of the lizard Dipsosaurus dorsalis. J. Comp. Physiol 156 (1985), 277–283 1985.
38. + Exchange, 1988, CRC Press, Boca Raton, FL.
39. 2 exchange in muscle and liver. Annu. Rev. Physiol 50 (1988), 669–694.
40. Gutknecht, J., Bisson, M.A., Tosteson, F.C., Diffusion of carbon dioxide through lipid bilayer membranes. Effects of carbonic anhydrase, bicarbonate, and unstirred layers. J. Gen. Physiol 69 (1977), 779–794.
41. Häussinger, D., Gerok, W., Sies, H., Hepatic role in pH regulation: role of intracellular glutamine cycle. Trends Biochem. Sci 9 (1984), 299–302.
42. 3, and the activity of carbonic anhydrase. Eur. J. Biochem 152 (1985), 381–386.
43. Heisler, N., Acid-base regulation in fishes. Heisler, N., (eds.) Acid-Base Regulation in Animals, 1986, Elsevier, Amsterdam, 309–356.
44. Heisler, N., Interactions between gas exchange, metabolism, and ion transport in animals: an overview. Can. J. Zool 67 (1989), 2923–2935.
45. Heisler, N., Forcht, G., Ultsch, G.R., Anderson, J.F., Acid-base regulation in response to environmental hypercapnia in two aquatic salamanders, Siren lacertina and. Amphiuma means. Resp. Physiol 49 (1982), 141–158.
46. Henry, R.P., Smatresk, N.J., Cameron, J.N., The distribution of branchial carbonic anhydrase and the effects of gill and erythrocyte carbonic anhydrase inhibition in the channel catfish. Ictalurus punctatus. J. Exp. Biol 134 (1988), 201–218.
47. Herbert, J.D., Coulson, R.A., Hernandez, T., Ehrensvard, G., A carbonic anhydrase requirement for the synthesis of glutamine from pyruvate in the chameleon. Biochem. Biophys. Res. Commun 65 (1975), 1054–1060.
48. Herbert, J.D., Coulson, R.A., Hernandez, T., Inhibition of pyruvate carboxylation in alligators and chameleons by carbonic anhydrase inhibitors. Comp. Biochem. Physiol 75A (1983), 185–192.
49. Herbert, J.D., Coulson, R.A., A role for carbonic anhydrase in de novo fatty acid synthesis. Ann. N.Y. Acad. Sci 429 (1984), 525–527.
50. Holland, H.D., The chemical evolution of the atmosphere and oceans, 1984, Princeton University Press, Princeton.
51. Holligan, P.M., Balch, W.M., Yentsch, C.M., The significance of subsurface chlorophyll, nitrite and ammonia maximum in relation to nitrogen for phytoplankton growth in stratified waters of the Gulf of Maine. J. Mar. Res 42 (1984), 1051–1073.
52. Hyde, D.A., Moon, T.W., Perry, S.F., Physiologiocal consequences of prolonged aerial exposure in the American eel, Anguilla rostrata: blood respiratory and acid-base status. J. Comp. Physiol 157 (1987), 635–642.
53. Jennings, M.L., Kinetics and mechanism of anion transport in red blood cells. Annu. Rev. Physiol 47 (1985), 519–533.
54. 3. Nature 339 (1989), 478–480.
55. + / H+ exchanger. Am. J. Physiol 241 (1981), C220–C226.
56. Knox, D., Walton, M.J., Cowey, C.B., Distribution of enzymes of glycolysis and gluconeogenesis in fish tissues. Mar. Biol 56 (1980), 7–10.
57. Lanaras, T., Hawthornthwaite, A.M., Codd, G.A., Localization of carbonic anhydrase in the cyanobacterium. Chlorogloeopsis fritschii. FEMS Microbiol. Lett 26 (1985), 285–288.
58. Maren, T.H., Current status of membrane-bound carbonic anhydrase. Ann. N.Y. Acad. Sci 341 (1980), 246–254.
59. 2) and ionic composition of river water in the plain of Alsace (eastern France). In Hydrochemical Balances of Freshwater Systems, edited by E. Eriksson, IAHS-AISH Publication no. 150, 1984, pp. 107–115.
60. Meijer, A.J., Lamers, W.H., Chamuleau, R.A.F.M., Nitrogen metabolism and ornithine cycle function. Physiol. Rev 70 (1990), 701–748.
61. Miller, S.L., Orgel, L.E., The Origins of Life on Earth, 1974, Prentice-Hall, Englewood Cliffs, NJ.
62. Milligan, C.L., Wood, C.M., Intracellular pH transients in rainbow trout tissues measured by dimethadione distribution. Am. J. Physiol 248 (1985), R668–R673.
63. + exchange with the environment after exhaustive exercise in rainbow trout. J. Exp. Biol 123 (1986), 93–121.
64. Milligan, C.L., Wood, C.M., Tissue intracellular acid-base status and the fate of lactate after exhaustive exercise in the rainbow trout. J. Exp. Biol 123 (1986), 123–144.
65. Milligan, C.L., McDonald, D.G., In vivo lactate kinetics at rest and during recovery from exhaustive exercise in coho salmon (Oncorhynchus kisutch) and starry flounder (Platichthys stellatus). J. Exp. Biol 135 (1988), 119–131.
66. Mommsen, T.P., Metabolism of the fish gill. Hoar, W.S., Randall, D.J., (eds.) Fish Physiology, Vol. XB, 1984, Academic Press, New York, 203–238.
67. Mommsen, T.P., Hochachka, P.W., The purine nucleotide cycle as two temporally separated metabolic units-a study on trout muscle. Metabolism 36 (1988), 552–556.
68. Mommsen, T.P., Walsh, P.J., Evolution of urea synthesis in vertebrates: the piscine connection. Science 243 (1989), 72–75.
69. Mommsen, T.P., Walsh, P.J., Urea synthesis in fishes: evolutionary and biochemical perspectives. Hochachka, P.W., Mommsen, T.P., (eds.) Biochemistry and Molecular Biology of Fish, 1991, Elsevier, Amsterdam, 137–163.
70. Mommsen, T.P., French, C.J., Hochachka, P.W., Sites and patterns of protein and amino acid utilization during the spawning migration of salmon. Can. J. Zool 58 (1980), 1785–1799.
71. Morrison, R.T., Boyd, R.N., Organic Chemistry, 2nd edition, 1966, Allyn and Bacon, Boston.
72. Moyes, C.D., Buck, L.T., Hochachka, P.W., Temperature effects on pH of mitochondria isolated from carp red muscle. Am. J. Physiol 254 (1988), R611–R615.
73. Nikinmaa, M., Railo, E., Anion movements across lamprey (Lampetra fluviatilis) red cell membrane. Biochim. Biophys. Acta 899 (1987), 134–136.
74. Ohnishi, S.T., Asai, H., Lamprey erythrocytes lack glycoproteins and anion transport. Comp. Biochem. Physiol 81B (1985), 405–407.
75. Pelster, B., Kobayashi, H., Scheid, P., Metabolism of the perfused swimbladder of the European eel: oxygen, carbon dioxide, glucose and lactate balance. J. Exp. Biol 144 (1989), 495–506.
76. Perry, S.F., Carbon dioxide excretion in fishes. Can. J. Zool 64 (1986), 565–572.
77. 2 excretion in a spontaneously ventillating blood-perfused trout preparation and saline-perfused gill preparations: contribution of the branchial epithelium and red blood cell. J. Exp. Biol 101 (1982), 47–60.
78. Perry, S.F., Wood, C.M., Control and coordination of gas transfer in fishes. Can. J. Zool 67 (1989), 2961–2970.
79. Portner, H.-O., The importance of metabolism in acid-base regulation and acid-base methodology. Can. J. Zool 67 (1989), 3005–3017.
80. Portner, H.-O., Determination of intracellular buffer values after metabolic inhibition by fluoride and nitrilotriacetic acid. Respir. Physiol 81 (1990), 275–288.
81. 2 after metabolic inhibition by fluoride and nitrilotriacetic acid. Respir. Physiol 81 (1990), 255–274.
82. Rahim, S.M., Delaunoy, J.-P., Laurent, P., Identification and immunocytochemical localization of two different carbonic anhydrase isoenzymes in teleost fish erythrocytes and gill epithelia. Histochem 89 (1988), 451–459.
83. Randall, D.J., Daxboeck, C., Oxygen and carbon dioxide transfer across fish gills. Hoar, W.S., Randall, D.J., (eds.) Fish Physiology, Vol. XA, 1984, Academic Press, New York, 263–314.
84. Randall, D.J., Wood, C.M., Perry, S.F., Bergman, H., Maloiy, G.M.O., Mommsen, T.P., Wright, P.A., Urea excretion as a strategy for survival in a fish living in a very alkaline environment. Nature 337 (1989), 165–166.
85. Randall, D.J., Wright, P.A., Ammonia distribution and excretion in fish. Fish Physiol. Biochem 3 (1987), 107–120.
86. Randall, D.J., Wright, P.A., The interaction between carbon dioxide and ammonia excretion and water pH in fish. Can. J. Zool 67 (1989), 2936–2942.
87. Raven, J.A., Energetics and Transport in Aquatic Plants, 1984, Alan R. Liss, New York.
88. Riggs, A., Properties of fish hemoglobins. Hoar, W.S., Randall, D.J., (eds.) Fish Physiology, Vol. IV, 1970, Academic Press, New York, 209–252.
89. Roberts, S.J., Lowery, M.S., Somero, G.N., Regulation of binding of phosphofructokinase to myofibrils in the red and white muscle of the barred sand bass, Paralabrax nebulifer (Serranidae). J. Exp. Biol 137 (1988), 13–27.
90. Robinson, B.H., Oei, J., Cheema-Dhadli, S., Halperin, H.L., Regulation of citrate transport and pyruvate dehydrogenase in rat kidney cortex mitochondria by bicarbonate. J. Biol. Chem 252 (1977), 5661–5665.
91. + antiporter, a glycoprotein of 110 kD. Science 247 (1990), 723–726.
92. Shankar, R.A., Anderson, P.M., Purification and properties of glutamine synthetase from liver of. Squalus acanthias. Arch. Biochem. Biophys 239 (1985), 248–259.
93. Shiraiwa, Y., Miyachi, S., Role of carbonic anhydrase in photosynthesis of blue-green alga (Cyanobacterium Anabaena variabilis ATCC 29413). Plant Cell Physiol 26 (1985), 109–116.
94. Srivastava, D.K., Bernhard, S.A., Metabolite transfer via enzyme-enzyme complexes. Science 234 (1986), 1081–1086.
95. Simon, S.A., Gutknecht, J., Solubility of carbon dioxide in lipid bilayer membranes and organic solvents. Biochem. Biophys. Acta 596 (1980), 352–358.
96. Somero, G.N., Hand, S.C., Protein assembly and metabolic regulation: physiological and evolutionary perspectives. Physiol. Zool 63 (1990), 443–471.
97. Stein, W.D., Transport and Diffusion Across Cell Membranes, 1986, Academic Press, Orlando, FL.
98. Storelli, C., Vilella, S., Cassano, G., Na-dependent D-glucose and L-alanine transport in eel intestine brush border membrane vesicles. Am. J. Physiol 251 (1986), R463–R469.
99. Stumm, W., Morgan, J.J., Aquatic Chemistry, 2nd ed., 1981, John Wiley, New York.
100. Suarez, R.K., Hochachka, P.W., Pyruvate carboxylase from rainbow trout liver. J. Comp. Physiol 143 (1981), 281–288.
101. Suarez, R.K., Mommsen, T.P., Gluconeogenesis in teleost fishes. Can. J. Zool 65 (1987), 1869–1882.
102. 2 excretion. Am. J. Physiol 253 (1987), R450–R458.
103. Truchot, J.-P., Duhamel-Jouve, A., Oxygen and carbon dioxide in the marine intertidal environment: diurnal and tidal changes in rockpools. Respir. Physiol 39 (1980), 241–254.
104. Tu, C., Spiller, H., Wynns, G.C., Silverman, D.N., Carbonic anhydrase and the uptake of inorganic carbon by Synechococcus sp. (UTEX 2380). Plant Physiol 85 (1987), 72–77.
105. 2 transport and ion distributions between plasma and erythrocytes in the blood of. Petromyzon marinus. J. Exp. Biol 144 (1989), 565–576.
106. Ultsch, G.R., The potential role of hypercarbia in the transition from water-breathing to air-breathing in vertebrates. Evolution 41 (1987), 442–445.
107. 31P-NMR during anoxia and recovery. Am. J. Physiol 256 (1989), R922–R929.
108. van Waarde, A., Aerobic and anaerobic ammonia production by fish. Comp. Biochem. Physiol 74B (1983), 675–684.
109. van Waarde, A., Biochemistry of non-protein nitrogenous compounds in fish including the use of amino acids for anaerobic energy production. Comp. Biochem. Physiol 91B (1988), 207–228.
110. van Waarde, A., Kesbeke, F., Nitrogen metabolism in goldfish, Carassius auratus (L.). Influence of added substrates and enzyme inhibitors on ammonia production of isolated hepatocytes. Comp. Biochem. Physiol 70B (1981), 499–507.
111. van Waarde, A., van den Thillart, G., Dobbe, F., Anaerobic metabolism of goldfish, Carassius auratus (L.). Influence of anoxia on mass-action ratios of transaminase reactions and levels of ammonia and succinate. J. Comp. Physiol: 147 (1982), 53–59.
112. van Waarde, A., van den Thillart, G., Kesbeke, F., Anaerobic energy metabolism of the European eel, Anguilla anguilla L. J. Comp. Physiol 149 (1983), 469–475.
113. Walsh, C., Enzymatic Reaction Mechanisms, 1979, W.H. Freeman, San Francisco, CA.
114. Walsh, P.J., Ionic requirements for intracellular pH regulation in rainbow trout hepatocytes. Am. J. Physiol 250 (1986), R24–R29.
115. Walsh, P.J., An in vitro model of post-exercise hepatic gluconeogenesis in the gulf toadfish. Opsanus beta. J. Exp. Biol 147 (1989), 393–406.
116. Walsh, P.J., Regulation of intracellular pH by toadfish (Opsanus beta) hepatocytes. J. Exp. Biol 147 (1989), 407–419.
117. Walsh, P.J., Moon, T.W., Mommsen, T.P., Interactive effects of acute changes in temperature and pH on metabolism in hepatocytes from the sea raven. Hemitripterus americanus. Physiol. Zool 58 (1985), 727–735.
118. Walsh, P.J., Mommsen, T.P., Moon, T.W., Perry, S.F., Effects of acid-base variables on in vitro hepatic metabolism in rainbow trout. J. Exp. Biol 135 (1988), 231–241.
119. Walsh, P.J., Parent, J.J., Henry, R.P., Carbonic anhydrase supplies bicarbonate for urea synthesis in toadfish (Opsanus beta) hepatocytes. Physiol. Zool 62 (1989), 1257–1272.
120. Walsh, P.J., Milligan, C.L., Coordination of metabolism and intracellular acid-base status: ionic regulation and metabolic consequences. Can. J. Zool 67 (1989), 2994–3004.
121. Walsh, P.J., Danulat, E., Mommsen, T.P., Variation in urea excretion in the Gulf toadfish. Opsanus beta. Mar. Biol 106 (1990), 323–328.
122. Walsh, P.J., Wood, C.M., Thomas, S., Perry, S.F., Characterization of red blood cell metabolism in rainbow trout. J. Exp. Biol 154 (1990), 475–489.
123. Watts, R.L., Watts, D.C., Nitrogen metabolism in fishes. Florkin, M., Scheer, B.T., (eds.) Chemical Zoology, Vol. VIII, 1974, Academic Press, New York, 369–446.
124. Weber, R.E., Jensen, F.B., Functional adaptations in hemoglobin from ectothermic vertebrates. Annu. Rev. Physiol 50 (1988), 161–179.
125. Wetzel, R.G., Limnology, 2nd edn., 1983, Saunders, Philadelphia, PA.
126. + distribution and the evolution of ureotelism in amphibians. J. Exp. Biol 144 (1989), 215–233.
127. Wood, C.M., Turner, J.D., Munger, R.S., Graham, M.S., Control of ventillation in the hypercapnic skate Raja ocellata: II. Cerebrospinal fluid and intracellular pH in the brain, and other tissues. Respir. Physiol 80 (1990), 279–298.
128. Wood, C.M., Wals, P.J., Thomas, H.S., Perry, S.F., Control of red blood cell metabolism in rainbow trout after exhaustive exercise. J. Exp. Biol 154 (1990), 491–507.
129. Wood, C.M., Perry, S.F., Respiratory, circulatory and metabolic adjustments to exercise in fish. Gilles, R., (eds.) Comparative Physiology and Biochemistry: Current Topics and Trends, Vol. A, 1985, Springer-Verlag, Berlin, 1–22.
130. Wright, P.A., Wood, C.M., Muscle ammonia stores are not determined by pH gradients. Fish Physiol. Biochem 5 (1988), 159–162.
131. + between tissue compartments in lemon sole (Parophrys vetulus) at rest, during hypercapnia and following exercise. J. Exp. Biol 136 (1988), 149–175.
132. Wright, P.A., Randall, D.J., Perry, S.F. II, Fish gill water boundary layer: a site of linkage between carbon dioxide and ammonia excretion. J. Comp. Physiol 158 (1989), 627–635.
133. Yagawa, Y., Shiraiwa, Y., Miyachi, S., Carbonic anhydrase from the blue-green alga (Cyanobacterium). Anabaena variabilis. Plant and Cell Physiol 25 (1984), 775–783.