Salicylic Acid Improved the Growth of <i>Dunaliella salina</i> and Increased the Proportion of <i>9-cis</i>-β-Carotene Isomers.

ABSTRACT: Dunaliella salina is an important source of natural β-carotene (containing 9-cis and all trans isomers) for industrial production. The phytohormone salicylic acid (SA) has been proven to have impacts on the stress resistance of higher plants, but research on microalgae is currently unclear. In this study, the effects of SA on the growth, biochemical composition, antioxidant enzyme activity, key enzymes of β-carotene synthesis, and cis-and trans-isomers of β-carotene in D. salina under different salt concentrations were investigated. The results were shown that at concentrations of 1.5, 2, and 2.5 M NaCl, the antioxidant enzyme activity and key enzymes for β-carotene synthesis in algal cells were significantly increased, but the content and proportion of 9-cis

SUBMITTER: Xiang S 

PROVIDER: S-EPMC11766574 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature