Watabe Y, Takahashi S. Production of Enhanced Carotenoid-Producing Strains of the Yeast Rhodotorula gracilis Using the Antibiotic Zeocin.
Appl Biochem Biotechnol 2023;
195:7889-7897. [PMID:
37084031 DOI:
10.1007/s12010-023-04494-x]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/11/2023] [Indexed: 04/22/2023]
Abstract
We employed genomic mutagenesis to the yeast Rhodotorula gracilis using Zeocin as a mutagen to develop enhanced carotenoid-producing mutant strains. The yeast mutant strains with enhanced carotenoid pigmentation were produced on agar plates containing Zeocin at a concentration of less than 1.5 µg/mL. The optimum concentration for producing enhanced carotenoid-pigmentation mutant strains was 0.25 µg/mL. The production of β-carotene, torulene, and torularhodin in an enhanced pigmentation strain were 1.3, 1.65, and 1.5 times higher than in the wild-type strain. These results suggested that genomic mutagenesis of the yeast using Zeocin could be applied for efficiently producing enhanced carotenoid-producing mutant strains.
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