[Carbonic anhydrase levels and enzymes of the glycolate pathway in the blue-green alga Anacystic nidulans].

The blue-green alga Anacystis nidulans (strain L 1402-1) was grown in air (0.03 vol. % CO2) and in 3.0 vol. % CO2 at +35° C. Levels of carbonic anhydrase were 3-fold higher in air-grown cells than in CO2-grown algae. CO2 content during growth has no effect on activity of RuDP carboxylase. Activities of PEP carboxylase, malic enzyme and catalase were higher in CO2-grown Anacystis cells. In air-grown cells higher activities of malate dehydrogenase, glycolate dehydrogenase, serine-pyruvate aminotransferase and aspartate-α-ketoglutarate aminotransferase were found. Levels of these enzymes are relatively low compared to those in green algae and higher plants.