Abstract
The 77 K picosecond fluorescence of intact Chlamydomonas reinhardtii exhibits a 680-nm band (F680) that can be identified with light-harvesting chlorophyll. Analysis of the time and spectral dependence of F680 reveal a forward transfer rate of 1/(15 ps) from this 680-nm species to photosystem II. The possibility of transfer through LHC I, the light-harvesting complex closely associated with photosystem I with a transfer time of 60 to 100 ps, is indicated by analysis of similar data in the 700-720 nm region. Simple kinetic models that account for the time dependence of the emissions F707, F703 and F715 are proposed.
Original language | English (US) |
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Pages (from-to) | 157-168 |
Number of pages | 12 |
Journal | Photosynthesis research |
Volume | 27 |
Issue number | 3 |
DOIs | |
State | Published - Mar 1991 |
Externally published | Yes |
Keywords
- Chlamydomonas reinhardtii
- energy transfer
- fluorescence
- kenetic model
- light-harvesting complexes (LHC)
- mutant
- photosystem I (PSI)
- photosystem II (PS II)
- picosecond
ASJC Scopus subject areas
- Biochemistry
- Plant Science
- Cell Biology