Complete separation of the beta,epsilon- and beta,beta-carotenoid biosynthetic pathways by a unique mutation of the lycopene cyclase in the green alga, Scenedesmus obliquus.

Abstract excerpt

The mutant, C-2A'-34, lacks the beta, epsilon-carotenoids, alpha-carotene, lutein and loroxanthin. When grown under heterotrophic or mixotropic conditions this strain develops significantly higher levels of beta-carotene and violaxanthin than does the original developmental mutant of Scenedesmus, C-2A'. The decrease in chlorophyll a and chlorophyll b observed in C-2A'-34 is accompanied by the near absence of the...

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