Deciphering the 820 nm signal: redox state of donor side and quantum yield of Photosystem I in leaves

@article{Oja2003DecipheringT8,
  title={Deciphering the 820 nm signal: redox state of donor side and quantum yield of Photosystem I in leaves},
  author={Vello Oja and Hillar Eichelmann and Richard B Peterson and Bahtijor Rasulov and Agu Laisk},
  journal={Photosynthesis Research},
  year={2003},
  volume={78},
  pages={1-15}
}
By recording leaf transmittance at 820 nm and quantifying the photon flux density of far red light (FRL) absorbed by long-wavelength chlorophylls of Photosystem I (PS I), the oxidation kinetics of electron carriers on the PS I donor side was mathematically analyzed in sunflower (Helianthus annuus L.), tobacco (Nicotiana tabacum L.) and birch (Betula pendula Roth.) leaves. PS I donor side carriers were first oxidized under FRL, electrons were then allowed to accumulate on the PS I donor side… CONTINUE READING

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