Abstract
The neutral carotenoids of wild-type Neurospora crassa and of carotenoid mutants at four discrete genetic loci were isolated using gradient elution chromatography on deactivated alumina columns. Carotenoids were identified by absorption spectrophotometry and thin layer cochromatography with carotenoid standards. Phytoene, phytofluene, ζ-carotene, β-carotene, neurosporene, torulene, lycopene, and 3,4-dehydrolycopene were isolated from wild type. Phytoene, phytofluene, ζ-carotene, β-carotene, neurosporene, γ-carotene, lycopene, and one unknown carotenoid, tentatively identified as 15,15′-cis-β-carotene, were isolated from a yellow mutant, ylo-1. ylo-1 also contained residual carotenoids having similar absorption spectra to, but very different chromatographic behavior from, phytofluene, ζ-carotene, β-carotene, and lycopene. Albino and colored al-1 mutants contained large amounts of phytoene and only traces of other neutral carotenoids. Albino al-2 and al-3 mutants contained only traces of neutral carotenoids.
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Goldie, A.H., Subden, R.E. The neutral carotenoids of wild-type and mutant strains of Neurospora crassa . Biochem Genet 10, 275–284 (1973). https://doi.org/10.1007/BF00485705
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DOI: https://doi.org/10.1007/BF00485705