Carotenoids and related compounds. Part XXIII. Occurrence of 7,8,11,12-tetrahydrolycopene, spheroidene, 3,4,11′,12′-tetrahydrospheroidene, and 11′,12′-dihydrospheroidene in Rhodospirillum rubrum
| Autor: | E. Ann Holmes, Brian H. Davies, D. E. Loeber, B. C. L. Weedon, T. P. Toube |
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| Rok vydání: | 1969 |
| Předmět: |
chemistry.chemical_classification
biology Stereochemistry Organic Chemistry Rhodospirillum rubrum Mass spectrometry biology.organism_classification chemistry.chemical_compound Pigment Biosynthesis chemistry Biochemistry visual_art visual_art.visual_art_medium Photosynthetic bacteria Spectroscopy Carotenoid |
| Zdroj: | J. Chem. Soc. C. :1266-1268 |
| ISSN: | 0022-4952 |
| DOI: | 10.1039/j39690001266 |
| Popis: | Four carotenoids isolated from diphenylamine-inhibited cultures of Rhodospirillum rubrum have been identified by light absorption spectroscopy and mass spectrometry as 7,8,11,12-tetrahydrolycopene (IV), spheroidene (IX), 3,4,11′,12′-tetrahydrospheroidene (VII), and 11′,12′-dihydrospheroidene (XII).The recognition of 7,8,11,12-tetrahydrolycopene (IV) suggests the need for a modification of the Porter-Lincoln series in these photosynthetic bacteria, and the presence of the other three pigments indicates that alternative pathways of spirilloxanthin biosynthesis may be operating. |
| Databáze: | OpenAIRE |
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