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

  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},
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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A computer-operated routine of gas exchange and optical measurements to diagnose photosynthetic apparatus in leaves

  • A Laisk, V Oja, +6 authors E Vapaavuori
  • Plant Cell Env
  • 2002
Highly Influential
2 Excerpts

Dynamic gas exchange of leaf photosynthesis

  • A Laisk, V Oja
  • Measurement and interpretation. CSIRO Publ…
  • 1998
Highly Influential
2 Excerpts

Steady-state and induction kinetics of photosynthetic electron transport related to donor side oxidation and acceptor side reduction of Photosystem I in sunflower

  • A Laisk, V Oja, U Heber
  • leaves. Photosynthetica
  • 1992
Highly Influential
4 Excerpts

Fluorescence analysis during steady-state photosynthesis

  • E Weis, D Lechtenberg
  • Phil Trans R Soc Lond B
  • 1989
Highly Influential
4 Excerpts

The kinetics of P 700+ reduction in leaves: a novel in situ probe of thylakoid functioning

  • J Harbinson, CL Hedley
  • Plant Cell Env
  • 1989
Highly Influential
6 Excerpts

Assimilatory power as a driving force in photosynthesis

  • U Heber, S Neimanis, KJ Dietz, J Viil
  • Biochim Biophys Acta
  • 1986
Highly Influential
2 Excerpts

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