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  • Title: [Isolation and physiological and biochemical characterization of the Chlamydomonas reinhardtii C-41 mutant, a superproducer of ξ-carotene].
    Author: Ladygin VG.
    Journal: Prikl Biokhim Mikrobiol; 2014; 50(6):578-86. PubMed ID: 25726666.
    Abstract:
    The composition of the carotenes and xanthophylls of Chlamydomonas reinhardtii Dang. C-41, a mutant of a unicellular green alga and a superproducer of ξ-carotene, was studied. The light-harvesting complexes and a complex of the PS-II reaction center were established to be disrupted in the C-41 mutant. However, the mutant retained a high (up to 46%) photosynthetic activity and the capacity to accumulate chlorophylls and carotenoids (up to 50%). The composition of carotenes was studied, and it was shown that, in contrast to wild-type K(+) cells, which accumulate up to 95% of β13-carotene and 5% α-carotene, cells of the C-41 mutant contained 43% β13-carotene, 19% β3-zeacarotene, and 38% ξ-carotene. The high level of C-41 mutant biomass accumulation made it possible to recommend the mutant as a superproducer of ξ-carotene in phytobiotechnology.
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