CIDEP observations in photosystem I of green plant and algal photosynthesis

Flash photolysis experiments with electron paramagnetic resonance detection were carried out between 10 K and 300 K on samples of green plant and algal species. Chemically induced dynamic electron polarization was evident for the signals observed in the g = 2.0 region for 100 KHz modulated detection...

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Published inBiochemical and biophysical research communications Vol. 87; no. 2; pp. 605 - 612
Main Authors McIntosh, A.R, Manikowski, H, Wong, S.K, Taylor, C.P.S, Bolton, J.R
Format Journal Article
LanguageEnglish
Published United States Elsevier Inc 30.03.1979
Subjects
Chlorophyta
Electron Spin Resonance Spectroscopy
Photolysis
Photosynthesis
Plants
Scenedesmus obliquus
spinach
PS II
PS I
CIDEP
EPR
mT
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Summary:Flash photolysis experiments with electron paramagnetic resonance detection were carried out between 10 K and 300 K on samples of green plant and algal species. Chemically induced dynamic electron polarization was evident for the signals observed in the g = 2.0 region for 100 KHz modulated detection and also for a system with no magnetic field modulation. The light reversible signals decaying in about 1 ms at low temperatures are interpreted as arising from photosystem I of the green plant and algal samples. Evidence is presented which indicates that the origin of the electron spin polarization is the well established radical-pair mechanism.
Bibliography:F60
7910839
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0006-291X
1090-2104
DOI:10.1016/0006-291X(79)91837-0