Time-dependent changes in the carotenoid composition and preferential binding of spirilloxanthin to the reaction center and anhydrorhodovibrin to theLH1 antenna complex in Rhodobium marinum

Citation
P. Qian et al., Time-dependent changes in the carotenoid composition and preferential binding of spirilloxanthin to the reaction center and anhydrorhodovibrin to theLH1 antenna complex in Rhodobium marinum, PHOTOCHEM P, 74(3), 2001, pp. 444-452
Citations number
22
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Biochemistry & Biophysics
Journal title
PHOTOCHEMISTRY AND PHOTOBIOLOGY
ISSN journal
0031-8655 → ACNP
Volume
74
Issue
3
Year of publication
2001
Pages
444 - 452
Database
ISI
SICI code
0031-8655(200109)74:3<444:TCITCC>2.0.ZU;2-7
Abstract
Carotenoids were isolated from the cells of Rhodobium marinum, and their st ructures were determined by mass spectrometry and H-1 nuclear magnetic reso nance spectroscopy; the carotenoids include lycopene, rhodopin, anhydrorhod ovibrin, rhodovibrin and spirilloxanthin. Time-dependent changes in the car otenoid composition in the reaction center (RC) and the light-harvesting co mplex 1 (LH1) were traced by high-performance liquid chromatography analysi s of the extracts. The carotenoid composition changed according to the spir illoxanthin biosynthetic pathway. However, spirilloxanthin having the longe st conjugated chain was always preferentially bound to the RC, and anhydror hodovibrin and other precursors to the LH1.