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Identification And Characterization Of Novel Transporters Involved In The Co2 Concentrating Mechanism Of Chlamydomonas Reinhardtii, Ananya Mukherjee

LSU Doctoral Dissertations

The green alga Chlamydomonas reinhardtii possesses a CO₂ concentrating mechanism (CCM) which helps in successful acclimation to low CO₂ conditions. One of the main aspects of the CCM is bringing in inorganic carbon (Ci) into the cell as bicarbonate using Ci transporters. Current models of the CCM postulate that a series of ion transporters bring HCO₃^- from outside the cell to the thylakoid lumen where the carbonic anhydrase, CAH3, dehydrates accumulated HCO₃^- to CO₂, raising the CO₂ concentration for Rubisco. Previously, HCO₃^- transporters have been identified at both the …