Energization and Activation of Inorganic Carbon Uptake by Light in Cyanobacteria

摘要: The requirement of the inorganic carbon (Ci) transport system for light in cyanobacteria was investigated Anabaena variabilis by filtering centrifugation technique and a mutant (E1) isolated from Anacystis nidulans using gas exchange system. Ci capability increased with time preillumination decreased following darkening. Full activity could not be obtained operating either photosystem II (PSII) or I alone. 3(3,4 Dichlorophenyl)-1,1 dimethylurea strongly inhibited uptake. Very low PSII sufficient to activate However, presence dithiothreitol required. We conclude that may required as well energize uptake cyanobacteria.