Combined 6-benzylaminopurine and H₂O₂ stimulate the astaxanthin biosynthesis in Xanthophyllomyces dendrorhous.

ABSTRACT: Astaxanthin is one of the most attractive carotenoids due to its high antioxidant activity and beneficial biological properties, while Xanthophyllomyces dendrorhous is one of its main microbial sources. Since astaxanthin is synthesized as a response to oxidative stress, several oxidative agents have been evaluated to increase X. dendrorhous astaxanthin yields. However, the extent of the stimulation is determined by the cellular damage caused by the applied oxidative agent. Phytohormones have also been reported as stimulants of astaxanthin biosynthesis acting directly on its metabolic pathway and indirectly promoting cellular resistance to reactive oxygen species. We reasoned that both oxidative agents and phytohormones lead to increased astaxanthin synthesis, but the latter could mitigate

SUBMITTER: Torres-Haro A 

PROVIDER: S-EPMC10803577 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature