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. 2016 May 3;7:578. doi: 10.3389/fpls.2016.00578

Figure 3.

Figure 3

Kinetic scheme of basic two-quantum mechanism. Double arrows indicate light-activated processes with the quantum efficiencies Φ1 and Φ2 representing the first and second photooxidative events in the assembly sequence, kR representing the still ill-defined “dark” rearrangement, and kD1, kD2 representing the decay of intermediates. After the initial two Mn are photoligated, subsequent Mn appear to be added with high quantum yield.