The far red induced slow component of delayed light from chloroplasts is emitted from Photosystem II - Evidence from emission spectroscopy

É. Hideg, Masaki Kobayashi, Humio Inaba

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

In spinach chloroplasts illuminated with far red light, the relative intensity maximum during the decay of delayed light is emitted at 680-690 nm. This finding supports previous models predicting emission from Photosystem II, and contradicts earlier attributions to Photosystem I. Due to self absorption, the emission spectrum of the relative maximum is shifted to longer wavelengths and displays apparent Photosystem I characteristics in chloroplast samples of higher concentration or in leaves. This may have caused earlier investigators to ascribe the emission to Photosystem I. A differences between the spectral width of the emission spectra of delayed fluorescence and the relative maximum indicates that these two phenomena represent emission from different sub-populations of Photosystem II centers.

Original languageEnglish
Pages (from-to)107-112
Number of pages6
JournalPhotosynthesis Research
Volume29
Issue number2
DOIs
Publication statusPublished - Aug 1991

Fingerprint

Photosystem I Protein Complex
Photosystem II Protein Complex
Emission spectroscopy
Chloroplasts
photosystem II
spectroscopy
Spectrum Analysis
chloroplasts
photosystem I
Light
Spinacia oleracea
Fluorescence
Display devices
Research Personnel
far-red light
Wavelength
spinach
wavelengths
Population
deterioration

Keywords

  • chloroplast
  • delayed light emission
  • emission spectrum
  • far red irradiation
  • Photosystem II
  • spinach

ASJC Scopus subject areas

  • Plant Science

Cite this

The far red induced slow component of delayed light from chloroplasts is emitted from Photosystem II - Evidence from emission spectroscopy. / Hideg, É.; Kobayashi, Masaki; Inaba, Humio.

In: Photosynthesis Research, Vol. 29, No. 2, 08.1991, p. 107-112.

Research output: Contribution to journalArticle

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