Origin and Evolution of Photosystems: Lessons from Green Sulfur Bacteria

Abstract

Photosynthetic reaction centres (RCs) are the sites of primary events in photosynthesis, where photon absorption leads to charge separation. Chen et al. recently described the RC structure in a green sulfur bacterium. Together with the structure of heliobacterial RC published previously, this study is instrumental to elucidate RC evolution to modern plant photosystems and oxygen production from water. Show more