Bioengineering of the marine diatom Phaeodactylum tricornutum with cannabis genes enables the production of the cannabinoid precursor, olivetolic acid

Awwad, F., Fantino, E. I., Héneault, M., Diaz-Garza, A. M., Merindol, N., Custeau, A., Gélinas, S. E., Meddeb-Mouelhi, F., Li, J., Lemay, J. F., Karas, B. J. et Desgagné-Penix, I. (2023). Bioengineering of the marine diatom Phaeodactylum tricornutum with cannabis genes enables the production of the cannabinoid precursor, olivetolic acid. International Journal of Molecular Sciences, 24 (23). Article 16624. ISSN 1661-6596 1422-0067 DOI 10.3390/ijms242316624

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Résumé

Abstract

The increasing demand for novel natural compounds has prompted the exploration of innovative approaches in bioengineering. This study investigates the bioengineering potential of the marine diatom Phaeodactylum tricornutum through the introduction of cannabis genes, specifically, tetraketide synthase (TKS), and olivetolic acid cyclase (OAC), for the production of the cannabinoid precursor, olivetolic acid (OA). P. tricornutum is a promising biotechnological platform due to its fast growth rate, amenability to genetic manipulation, and ability to produce valuable compounds. Through genetic engineering techniques, we successfully integrated the cannabis genes TKS and OAC into the diatom. P. tricornutum transconjugants expressing these genes showed the production of the recombinant TKS and OAC enzymes, detected via Western blot analysis, and the production of cannabinoids precursor (OA) detected using the HPLC/UV spectrum when compared to the wild-type strain. Quantitative analysis revealed significant olivetolic acid accumulation (0.6–2.6 mg/L), demonstrating the successful integration and functionality of the heterologous genes. Furthermore, the introduction of TKS and OAC genes led to the synthesis of novel molecules, potentially expanding the repertoire of bioactive compounds accessible through diatom-based biotechnology. This study demonstrates the successful bioengineering of P. tricornutum with cannabis genes, enabling the production of OA as a precursor for cannabinoid production and the synthesis of novel molecules with potential pharmaceutical applications.

Type de document:	Article
Mots-clés libres:	Diatom Metabolic engineering Olivetolic acid cyclase Tetraketide synthase Synthetic biology Cannabinoids Microalgae
Date de dépôt:	22 avr. 2025 15:27
Dernière modification:	23 avr. 2025 12:01
Version du document déposé:	Version officielle de l'éditeur
URI:	https://depot-e.uqtr.ca/id/eprint/11889

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