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Changes in fatty acid biosynthesis in marine microalgae as a response to medium nutrient availability

2016Journal article Open access
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dc.contributor.authorFernandes, Tomásia
dc.contributor.authorFernandes, Igor
dc.contributor.authorAndrade, Carlos A. P.
dc.contributor.authorCordeiro, Nereida
dc.date.accessioned2021-04-30T11:11:44Z
dc.date.available2021-04-30T11:11:44Z
dc.date.issued2016
dc.description.abstractTo maximize and enhance the fatty acid (FA) profiles of microalgae, it is crucial to understand the metabolic path ways that lead to high levels of the desired product. Nannochloropsis gaditana, Rhodomonas marina, and Isochrysis sp. were cultivated in media with various nutrient concentrations, and the biomass was analyzed for protein and fatty acid contents. The long chain polyunsaturated fatty acid (LC-PUFA) and protein contents were maximized in media with high nutrient concentrations. Under these conditions, the reduction in the (SFA + MUFA)/PUFA ratio (by as much as 83%) indicated that R. marina and N. gaditana shifted preference towards PUFA synthesis. The ∑ω3/∑ω6 ratio indicated that R. marina preferentially synthesized ω3 FA towards high nutrient concentrations (depicted by an eightfold increase) in contrast to Isochrysis sp. (which yielded a 35% reduction). In addition, the limitations of LC-PUFA biosynthesis at the level of its precursors (e.g. C18:2ω6, C18:3ω3, C18:4ω3) and further conversion to LC-PUFA as nutrients were increased, suggesting that external variations induced changes in the sets of enzymes that maintain the desaturation and elongation pathways of FA. The present study provides novel insights into the regulation of LC-PUFA biosynthesis and facilitates the modeling of microalgal FA patterns depending on the field of application.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationFernandes, T., Fernandes, I., Andrade, C. A., & Cordeiro, N. (2016). Changes in fatty acid biosynthesis in marine microalgae as a response to medium nutrient availability. Algal research, 18, 314-320.pt_PT
dc.identifier.doi10.1016/j.algal.2016.07.005pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.13/3335
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectNutrient availabilitypt_PT
dc.subjectLC-PUFApt_PT
dc.subjectN. gaditanapt_PT
dc.subjectR. marinapt_PT
dc.subjectIsochrysis sppt_PT
dc.subject.pt_PT
dc.subjectFaculdade de Ciências Exatas e da Engenhariapt_PT
dc.titleChanges in fatty acid biosynthesis in marine microalgae as a response to medium nutrient availabilitypt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage320pt_PT
oaire.citation.startPage314pt_PT
oaire.citation.titleAlgal Researchpt_PT
oaire.citation.volume18pt_PT
person.familyNameGomez Fernandes
person.familyNameFernandes
person.familyNamecordeiro
person.givenNameTomásia Micaela
person.givenNameIgor
person.givenNamenereida
person.identifier1612636
person.identifier.ciencia-id521A-0F62-EA39
person.identifier.orcid0000-0002-6157-4177
person.identifier.orcid0000-0003-3192-5121
person.identifier.orcid0000-0001-6006-3415
person.identifier.ridO-2253-2019
person.identifier.scopus-author-id7004319456
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication20d4c5e3-ad4b-44a9-bb85-a1bcfbc60ef0
relation.isAuthorOfPublicationd2641f2d-9cf4-4931-a9c3-e0116a23a1cc
relation.isAuthorOfPublication3d02b657-c48c-4f56-813a-1284b81960f3
relation.isAuthorOfPublication.latestForDiscovery3d02b657-c48c-4f56-813a-1284b81960f3

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