Light-Harvesting Complexes of Aerobic Bacteriochlorophyll-Containing Bacteria Roseococcus thiosulfatophilus, RB3 and Erythromicrobium ramosum, E5 and the Transfer of Excitation Energy from Carotenoids to Bacteriochlorophyll

Autor:	Gerhart Drews, Alexander Angerhofer, Nasser Gad'on, Vladimir Yurkov
Rok vydání:	1994
Předmět:	Light-harvesting complex Absorption (pharmacology) Photosynthetic reaction centre chemistry.chemical_classification chemistry.chemical_compound Membrane chemistry Bacteriochlorophyll Singlet state Photochemistry Fluorescence Carotenoid General Biochemistry Genetics and Molecular Biology
Zdroj:	Zeitschrift für Naturforschung C. 49:579-586
ISSN:	1865-7125 0939-5075
DOI:	10.1515/znc-1994-9-1007
Popis:	The spectral analysis of membrane fractions and a fraction enriched in light-harvesting (LH) complex I + reaction center (RC) of Roseococcus thiosulfatophilus, RB3 and of the membrane fraction and of the isolated LH II and LH I + RC complexes of Erythromicrobium ramosum, E5 is reported. Quantum yields of singlet energy transfer between carotenoids and bacteriochlorophyll (light-harvesting function) were calculated from comparison of absorption and fluorescence excitation spectra of the respective preparations. The results indicate that the excess of carotenoids in the membrane does not contribute to the lightharvesting function of the LH complexes.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::41e8838d8f85a7cd214cd96bd8949bb4 https://doi.org/10.1515/znc-1994-9-1007 Zobrazit plný text záznamu