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Light induces peridinin and docosahexaenoic acid accumulation in the dinoflagellate Durusdinium glynnii

  • Environmental Biotechnology
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Applied Microbiology and Biotechnology Aims and scope Submit manuscript

Abstract

Peridinin is a light-harvesting carotenoid present in phototrophic dinoflagellates and has great potential for new drug applications and cosmetics development. Herein, the effects of irradiance mediated by light-emitting diodes on growth performance, carotenoid and fatty acid profiles, and antioxidant activity of the endosymbiotic dinoflagellate Durusdinium glynnii were investigated. The results demonstrate that D. glynnii is particularly well adapted to low-light conditions; however, it can be high-light-tolerant. In contrast to other light-harvesting carotenoids, the peridinin accumulation in D. glynnii occurred during high-light exposure. The peridinin to chlorophyll-a ratio varied as a function of irradiance, while the peridinin to total carotenoids ratio remained stable. Under optimal irradiance for growth, there was a peak in docosahexaenoic acid (DHA) bioaccumulation. This study contributes to the understanding of the photoprotective role of peridinin in endosymbiont dinoflagellates and highlights the antioxidant activity of peridinin-rich extracts.

Key Points

Peridinin has a protective role against chlorophyll photo-oxidation

High light conditions induce cellular peridinin accumulation

D. glynnii accumulates high amounts of DHA under optimal light supply

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Data availability

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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Funding

This research was funded in part by Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) – Finance Code 001. JLA received a researcher fixation grant (BFP-0186–5.06/20) from the Fundação de Amparo à Ciência e Tecnologia de Pernambuco (FACEPE). RSB, MNM, and AOG received research fellowships PQ 307107/2019–1, PQ 305467/2020–4, and PQ 308063/2019–8, respectively, from the Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq).

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Contributions

CYBO: conceptualization; investigation; methodology; data curation; formal analysis; writing—original draft. JLA: investigation, formal analysis. EPS: investigation, formal analysis. APM: resources; formal analysis; writing—review and editing. GT: resources, formal analysis. CDLO: data curation; formal analysis; writing—review and editing. BOV: data curation, formal analysis. RSB: resources, formal analysis. MNM: resources; supervision; writing—review and editing. AOG: resources; supervision; project administration; writing—review and editing.

Corresponding author

Correspondence to Carlos Yure B. Oliveira.

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Oliveira, C.Y.B., Abreu, J.L., Santos, E.P. et al. Light induces peridinin and docosahexaenoic acid accumulation in the dinoflagellate Durusdinium glynnii. Appl Microbiol Biotechnol 106, 6263–6276 (2022). https://doi.org/10.1007/s00253-022-12131-6

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  • DOI: https://doi.org/10.1007/s00253-022-12131-6

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