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Standard redox potentials of different electron donors of the photosynthetic light reaction

Range	Table - link
Organism	Generic
Reference	Jorg Overmann and Ferran Garcia-Pichel, The Phototrophic Way of Life, Prokaryotes (2006) 2:32–85 chapter 1.3, edited by Stanley Falkow, Eugene Rosenberg, Karl-Heinz Schleifer, Erko Stackebrandt DOI: 10.1007/0-387-30742-7_3 p.51 table 4
Primary Source	See link
Comments	P.51 right column 2nd paragraph: "The standard free energy for the reduction of CO2 depends on the redox potential of the photosynthetic electron donor employed (Table 4, Fig. 8). If this energy requirement for electron transfer is compared with the energy available after absorption of photons of different wavelengths, it becomes clear that oxygenic photosynthesis is not feasible in photosystems containing the known types of chlorin pigments, and requires the absorption of two photons per electron (Fig. 8)." The standard reduction potential is defined relative to a standard hydrogen electrode (SHE) reference electrode, which is arbitrarily given a potential of 0.00 volts.
Entered by	Uri M
ID	104561