Photochemistry beyond the red limit in chlorophyll f-containing photosystems
Nürnberg, Dennis J; Morton, Jennifer; Santabarbara, Stefano; Telfer, Alison; Joliot, Pierre; Antonaru, Laura A; Ruban, Alexander V; Cardona, Tanai; Krausz, Elmars; Boussac, Alain; Fantuzzi, Andrea; Rutherford, A William
Photosystems I and II convert solar energy into the chemical energy that powers life. Chlorophyll a photochemistry, using red light (680 to 700 nm), is near universal and is considered to define the energy "red limit" of oxygenic photosynthesis. We present biophysical studies on the photosystems from a cyanobacterium grown in far-red light (750 nm). The few long-wavelength chlorophylls present are well resolved from each other and from the majority pigment, chlorophyll a. Charge separation in...[Show more]
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