期刊
APPLIED MICROBIOLOGY AND BIOTECHNOLOGY
卷 99, 期 22, 页码 9407-9416出版社
SPRINGER
DOI: 10.1007/s00253-015-6792-x
关键词
Carotenoids; Methyl jasmonate; Microalgae; Salicylic acid; UV-C radiation
资金
- Meat and Livestock Australia [B.NBP.0695]
- Australian Research Council [LP0990558]
- Australian Postgraduate Award
- Australian Research Council [LP0990558] Funding Source: Australian Research Council
Carotenoids prevent different degenerative diseases and improve human health. Microalgae are commercially exploited for carotenoids, including astaxanthin and beta-carotene. Two commercially important microalgae, Dunaliella salina and Tetraselmis suecica, were treated with plant hormones salicylic acid (SA) and methyl jasmonate (MJ), or by UV-C radiation (T. suecica only) and a combination thereof. Significant increases in total carotenoids were found for D. salina and T. suecica after treatment with MJ (10 mu mol/L) and SA (70-250 mu mol/L), respectively. T. suecica also had significant increases in total carotenoids following UV-C radiation compared to control cultures. Among the carotenoids, lutein was the highest induced carotenoid. A combination of these two treatments also showed a significant increase in total carotenoids and lutein for T. suecica, when compared to controls. Plant hormones and UV-C radiation may be useful tools for increasing carotenoid accumulation in green microalgae although the responses are species- and dose-specific and should be trialed in medium to large scale to explore commercial production.
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