Journal of Photoscience
- Volume 9 Issue 2
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- Pages.70-73
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- 2002
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- 1225-8555(pISSN)
Photosystem I and II Reaction Centers in a New Type Oxygenic Photosynthesis of Acaryochloris marina Based on Chlorophyll d: Studies of Delayed Fluorescence and Triplet State ESR
- Itoh, Shigeru (Department of Material Sciences (physics), Graduate School of Science, University of Nagoya) ;
- Fukushima, Yoshimasa (Department of Material Sciences (physics), Graduate School of Science, University of Nagoya) ;
- Itoh, Kunihiro (Department of Material Sciences (physics), Graduate School of Science, University of Nagoya) ;
- Maeda, Masanori (Department of Material Sciences (physics), Graduate School of Science, University of Nagoya) ;
- Mino, Hiroyuki (Department of Material Sciences (physics), Graduate School of Science, University of Nagoya) ;
- Kumazaki, Shigeichi (School of Materials Science, Japan Advanced Institute of Science and Technology)
- Published : 2002.08.01
Abstract
A cyanobacteria-like organism Aaryochloris marina performs oxygenic photosynthesis with near far-red light by the use of chlorophyll d. Reaction center chlorophyll (Chl) of Photosystem (PS) II of A. marina was studied by analysis of millisecond-delayed fluorescence. Delayed fluorescence is emitted by Chi d indicating efficient energy transfer between antenna Chi d molecules and the unknown primary electron donor of PS II. P740 a reaction center Chl of PS I of A. marina is shown to give a dimer type cation, and triplet state with a D value of 245xlO
Keywords
- Acaryochloris marina;
- chlorophyll d;
- delayed fluorescence;
- electron transfer;
- reaction center;
- triplet state