Abstract
Intact cells of Halobacterium halobium fed with (3R,4R)-[2-14C,4-3H1]mevalonic acid were found to incorporate label into acyclic C40 and C50 carotenoids, of which bacterioruberin was the most abundant. The 14C/3H ratios of the isolated carotenoids demonstrated that the 4-pro-R hydrogen atom of mevalonic acid was retained at the C-2 and C-2' positions of bacterioruberin. Diphenylamine was found to inhibit the production of bacterioruberin.
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Selected References
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