Terminal steps of bacteriochlorophyll a phytol formation in purple photosynthetic bacteria.
Four chemically different bacteriochlorophylls (Bchls) a esterified with geranylgeraniol, dihydrogeranylgeraniol, tetrahydrogeranylgeraniol, and phytol have been detected by high-pressure liquid chromatography in cell extracts from Rhodopseudomonas sphaeroides and Chromatium vinosum. Bchl a containing phytol is the principal component, and the other three Bchls a comprise about 4% of the total Bchls a in stationary-phase cells of R. sphaeroides and C. vinosum. The high levels of the minor pigments occur in the beginning of Bchl a phytol formation, indicating that they are not degradation products, but intermediates of Bchl a phytol formation.[1]References
- Terminal steps of bacteriochlorophyll a phytol formation in purple photosynthetic bacteria. Shioi, Y., Sasa, T. J. Bacteriol. (1984) [Pubmed]
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