کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1234100 | 1495262 | 2013 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Bacterioruberin and salinixanthin carotenoids of extremely halophilic Archaea and Bacteria: A Raman spectroscopic study Bacterioruberin and salinixanthin carotenoids of extremely halophilic Archaea and Bacteria: A Raman spectroscopic study](/preview/png/1234100.png)
Laboratory cultures of a number of red extremely halophilic Archaea (Halobacterium salinarum strains NRC-1 and R1, Halorubrum sodomense, Haloarcula valismortis) and of Salinibacter ruber, a red extremely halophilic member of the Bacteria, have been investigated by Raman spectroscopy using 514.5 nm excitation to characterize their carotenoids. The 50-carbon carotenoid α-bacterioruberin was detected as the major carotenoid in all archaeal strains. Raman spectroscopy also detected bacterioruberin as the main pigment in a red pellet of cells collected from a saltern crystallizer pond. Salinibacter contains the C40-carotenoid acyl glycoside salinixanthin (all-E, 2′S)-2′-hydroxy-1′-[6-O-(methyltetradecanoyl)-β-d-glycopyranosyloxy]-3′,4′-didehydro-1′,2′-dihydro-β,ψ-carotene-4-one), for which the Raman bands assignments of are given here for the first time.
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► Raman spectroscopic study of red extremely halophilic Archaea (Halobacterium salinarum strains NRC-1 and R1, Halorubrum sodomense, Haloarcula valismortis) and of Salinibacter ruber.
► First Raman spectroscopic study of Salinibacter ruber.
► First assignments of Raman bands of C40-carotenoid acyl glycoside salinixanthin (all-E, 2′S) 2′-hydroxy-1′-[6-O-(methyltetradecanoyl)-β-d-glycopyranosyloxy]-3′,4′-didehydro-1′,2′-dihydro-β,ψ-carotene-4-one).
Journal: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy - Volume 106, April 2013, Pages 99–103