ISSN:
1432-072X
Keywords:
Flavobacterium R1560
;
Carotenoids
;
Zeaxanthin
;
cts-Phytoene
;
Carotenes
;
Biosynthesis
;
Nicotine
;
Taxonomy
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract The main carotenoid of Flavobacterium strain R1560 has been identified as (3R,3′R)-zeaxanthin. Also present were small amounts of 15-cis-phytoene, phytofluene, “ζ-carotene” (7,8,7′,8′-tetrahydro-ψ, ψ-carotene plus 7,8,11,12-tetrahydro-ψ, ψ-carotene), neurosporene, lycopene, β-zeacarotene, γ-carotene, β-carotene, β-cryptoxanthin, rubixanthin, 3-hydroxy-β-zeacarotene and several apo-carotenals. Zeaxanthin production was inhibited by nicotine (10 mM), and lycopene and rubixanthin accumulated. The biosynthesis of zeaxanthin is discussed in terms of pathways and also of “half-molecule” reaction sequences. The presence of zeaxanthin may be a characteristic of a group of Flavobacterium species, and may thus be useful in the taxonomic classification of these organisms.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00428576
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