Regulation mechanism of gibberellic acid-3 for astaxanthin biosynthesis in heterotrophically growing Chromochloris zofingiensis

Chromochloris zofingiensis has been proved as the potential object for large-scale astaxanthin production, but few information of phytohormones on growth and astaxanthin accumulation could be obtained. This study explored the impact of gibberellic acid-3 (GA3) on morphology, growth, and astaxanthin biosynthesis in heterotrophic C. zofingiensis.