ESR study of the primary electron donor in highly 13C‐enriched Chlorobium limicola f. thiosulfatophilum
- 22 November 1982
- journal article
- Published by Wiley in FEBS Letters
- Vol. 149 (1) , 138-140
- https://doi.org/10.1016/0014-5793(82)81089-2
Abstract
The photo‐induced electron spin resonance signal of the primary donor P840+ in unit membrane fractions of the title photosynthetic bacterium was measured. Bacteria containing natural isotopic abundances and 82% 13C‐enrichment were examined. Second moment analysis of the lineshape of the 13C‐enriched P840+ signal shows that P840+ consists of two bacteriochlorophyll a‐type macrocycles. The data thus obtained are independent of difficulties in interpreting either peak‐to‐peak linewidths or ENDOR data with respect to intermolecular spin delocalization.Keywords
This publication has 9 references indexed in Scilit:
- Photoinduced ESR signals from the primary electron donors in deuterated highly carbon-13 enriched photosynthetic bacteria and algaeJournal of the American Chemical Society, 1981
- In vivo liquid solution ENDOR and TRIPLE resonance of bacterial photosynthetic reaction centers of Rhodopseudomonas sphaeroides R-26Journal of the American Chemical Society, 1981
- Monomeric chlorophyll a enol : Evidence for its possible role as the primary electron donor in photosystem I of plant photosynthesisProceedings of the National Academy of Sciences, 1981
- Ligated chlorophyll cation radicals: Their function in photosystem II of plant photosynthesisProceedings of the National Academy of Sciences, 1979
- ENDOR EXPERIMENTS ON CHLOROPHYLL AND BACTERIOCHLOROPHYLL IN VITRO AND IN THE PHOTOSYNTHETIC UNIT*Annals of the New York Academy of Sciences, 1975
- An Electron-Nuclear Double Resonance (Endor) Study of the Special Pair Model for Photo-Reactive Chlorophyll in PhotosynthesisProceedings of the National Academy of Sciences, 1974
- Circular dichroism and absorption spectra of bacteriochlorophyll-protein and reaction center complexes from Chlorobium thiosulfatophilumBiochimica et Biophysica Acta (BBA) - Bioenergetics, 1973
- Electron Spin Resonance of Chlorophyll and the Origin of Signal I in PhotosynthesisProceedings of the National Academy of Sciences, 1971
- Second Moments of Electron Spin Resonance Proton Hyperfine SpectraThe Journal of Chemical Physics, 1963