ISSN:
1432-072X
Keywords:
Bacteriochlorophyll e
;
Bacteriopheophytin e
;
Absorption Spectra
;
bacteriochlorophylls c, d, e
;
Chlorophylls a, b
;
Structure
;
Homologues
;
C. phaeobacteroides
;
C. phaeovibrioides
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract A new bacteriochlorophyll has been isolated by thin layer chromatography from all strains of the brown-colored Chlorobiaceae Chlorobium phaeobacteroides and Chlorobium phaeovibrioides. The new bacteriochlorophyll e —like the bacteriochlorophylls c and d—represents the major amount of bacteriochlorophyll in the cells in addition to small amounts of bacteriochlorophyll a. Bacteriochlorophyll e can be differentiated from the bacteriochlorophylls c and d by its absorption maxima in aceton and its different R f -value in the thin layer chromatogram. The structure of the new bacteriochlorophyll e has been elucidated on the basis of mass spectra, 1H- and 13C-NMR-spectra, the UV/VIS-spectrum as well as IR-, ORD-, and CD-spectra. The new bacteriochlorophyll has the same relationship to bacteriochlorophyll c as chlorophyll b from green plants to chlorophyll a; therefore, bacteriochlorophyll e represents the first formyl-substituted chlorophyll from bacteria. Similar to the bacteriochlorophylls c and d, the new bacteriochlorophyll e consists of a mixture of at least three homologues which differ from each other by different substituents on the pyrrol rings II and III.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00428353
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