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A red-shifted chlorophyll.
- Source :
-
Science (New York, N.Y.) [Science] 2010 Sep 10; Vol. 329 (5997), pp. 1318-9. Date of Electronic Publication: 2010 Aug 19. - Publication Year :
- 2010
-
Abstract
- Chlorophylls are essential for light-harvesting and energy transduction in photosynthesis. Four chemically distinct varieties have been known for the past 60 years. Here we report isolation of a fifth, which we designate chlorophyll f. Its in vitro absorption (706 nanometers) and fluorescence (722 nanometers) maxima are red-shifted compared to all other chlorophylls from oxygenic phototrophs. On the basis of the optical, mass, and nuclear magnetic resonance spectra, we propose that chlorophyll f is [2-formyl]-chlorophyll a (C55H70O6N4Mg). This finding suggests that oxygenic photosynthesis can be extended further into the infrared region and may open associated bioenergy applications.
- Subjects :
- Cyanobacteria classification
Cyanobacteria genetics
Cyanobacteria isolation & purification
Genes, Bacterial
Genes, rRNA
Mass Spectrometry
Molecular Sequence Data
Molecular Structure
Nuclear Magnetic Resonance, Biomolecular
Photosynthesis
RNA, Ribosomal, 16S genetics
Spectrometry, Fluorescence
Western Australia
Bacteriochlorophylls chemistry
Bacteriochlorophylls isolation & purification
Cyanobacteria chemistry
Pigments, Biological chemistry
Pigments, Biological isolation & purification
Subjects
Details
- Language :
- English
- ISSN :
- 1095-9203
- Volume :
- 329
- Issue :
- 5997
- Database :
- MEDLINE
- Journal :
- Science (New York, N.Y.)
- Publication Type :
- Academic Journal
- Accession number :
- 20724585
- Full Text :
- https://doi.org/10.1126/science.1191127