Table 1 JIP test parameters with explanations and formulae calculated using data extracted from the O-J-I-P fast fluorescence transient following the equations of Strasser and Strasser [24]
Parameter and formulae | Description |
|---|---|
VJ = (F2ms − Fo)/(Fm − Fo) | Relative variable fluorescence intensity at the J-step, reflecting the open state of reaction centers |
φEo = ETo/ABS = [1 − (Fo/Fm)] •ψ0 | Quantum yield for electron transport (at t = 0) |
ψ0 = ETO/TRO = (1 − VJ) | Probability that a trapped excitation transfers an electron into the electron transport chain beyond QA (at t = 0) |
RC/CSo = φPo•(VJ/Mo)•(ABS/CSo) | Number of RCs per CS, reflecting density of RCs |
ABS/RC = Mo·(1/VJ)·(1/φPo) | Absorption flux per reaction center (RC) |
ETo/RC = Mo·(1/VJ)·Ψo | Electron transport flux per RC (at t = 0) |
DIo/RC = ABS/RC − TRo/RC | Dissipated energy flux per RC (at t = 0) |
TRo/RC = Mo·(1/VJ) | Trapped energy flux per RC (at t = 0) |
PIabs = (RC/ABS)·[φPo/(1 − φPo)]·[Ψo/(1 − Ψo)] | Performance index based on absorption of light energy |
Φp0 = TRo/ABS = 1 − (Fo/Fm) | The maximum photochemical efficiency (at t = 0) |