作者: Aaron Kaplan , Rakefet Schwarz , Judy Lieman-Hurwitz , Michal Ronen-Tarazi , Leonora Reinhold
DOI: 10.1007/978-94-011-0227-8_15
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摘要: The ability of cyanobacteria to adapt a wide range ambient CO2 concentrations involves modulation the activity an inorganic carbon-concentrating mechanism (CCM), as well other changes at various cellular levels including biosynthetic pathway purines. Studies high-CO2-requiring mutants have identified several genes involved in operation CCM and grow under changing concentration. In case Synechococcus sp. strain PCC 7942 most these been mapped genomic region rbcLS operon. Higher detectable transcripts originating from some observed after exposure cells low confirmed quantitative models postulating crucial roles for carboxysomes carboxysome-located carbonic anhydrase (CA) cyanobacterial photosynthesis. A central role is also proposed cytoplasmic-membrane-associated CA activity: may function scavenge escaping by intracellular conversion bicarbonate against chemical potential.