Please use this identifier to cite or link to this item: http://hdl.handle.net/10773/41768
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dc.contributor.authorRey, Felisapt_PT
dc.contributor.authorCartaxana, Paulopt_PT
dc.contributor.authorAveiro, Susanapt_PT
dc.contributor.authorGreenacre, Michaelpt_PT
dc.contributor.authorMelo, Tâniapt_PT
dc.contributor.authorDomingues, Pedropt_PT
dc.contributor.authorDomingues, M. Rosáriopt_PT
dc.contributor.authorCruz, Sóniapt_PT
dc.date.accessioned2024-04-30T14:12:38Z-
dc.date.available2024-04-30T14:12:38Z-
dc.date.issued2023-02-
dc.identifier.issn1388-1981pt_PT
dc.identifier.urihttp://hdl.handle.net/10773/41768-
dc.description.abstractLong-term kleptoplasty, the capability to retain functional stolen chloroplasts (kleptoplasts) for several weeks to months, has been shown in a handful of Sacoglossa sea slugs. One of these sea slugs is Elysia timida, endemic to the Mediterranean, which retains functional chloroplasts of the macroalga Acetabularia acetabulum. To understand how light modulates the lipidome of E. timida, sea slug specimens were subjected to two different 4-week light treatments: regular light and quasi-dark conditions. Lipidomic analyses were performed by HILIC-HR-ESI-MS and MS/MS. Quasi-dark conditions caused a reduction in the amount of essential lipids for photosynthetic membranes, such as glycolipids, indicating high level of kleptoplast degradation under sub-optimal light conditions. However, maximum photosynthetic capacities (Fv/Fm) were identical in both light treatments (≈0.75), showing similar kleptoplast functionality and suggesting that older kleptoplasts were targeted for degradation. Although more stable, the phospholipidome showed differences between light treatments: the amount of certain lipid species of phosphatidylethanolamine (PE), phosphatidylinositol (PI), and phosphatidylglycerol (PG) decreased under quasi-dark conditions, while other lipid species of phosphatidylcholine (PC), PE and lyso-PE (LPE) increased. Quasi-dark conditions promoted a decrease in the relative abundance of polyunsaturated fatty acids. These results suggest a light-driven remodelling of the lipidome according to the functions of the different lipids and highlight the plasticity of polar lipids in the photosynthetic sea slug E. timida.pt_PT
dc.language.isoengpt_PT
dc.publisherElsevierpt_PT
dc.relationinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F50017%2F2020/PTpt_PT
dc.relationinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F50017%2F2020/PTpt_PT
dc.relationinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/LA%2FP%2F0094%2F2020/PTpt_PT
dc.relationinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F50006%2F2020/PTpt_PT
dc.relationinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F50006%2F2020/PTpt_PT
dc.relationLISBOA-01-0145-FEDER-402-022125pt_PT
dc.relationinfo:eu-repo/grantAgreement/FCT/CEEC IND 2017/CEECIND%2F00580%2F2017%2FCP1459%2FCT0005/PTpt_PT
dc.relationCEECIND/01578/2020pt_PT
dc.relationinfo:eu-repo/grantAgreement/FCT/CEEC IND 3ed/2020.03278.CEECIND%2FCP1589%2FCT0012/PTpt_PT
dc.relationinfo:eu-repo/grantAgreement/FCT/CEEC IND 2018/CEECIND%2F01434%2F2018%2FCP1559%2FCT0003/PTpt_PT
dc.rightsopenAccesspt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/pt_PT
dc.subjectFatty acidspt_PT
dc.subjectKleptoplastypt_PT
dc.subjectLipidomicspt_PT
dc.subjectPhotosynthesispt_PT
dc.subjectPolar lipidspt_PT
dc.subjectSacoglossapt_PT
dc.titleLight modulates the lipidome of the photosynthetic sea slug Elysia timidapt_PT
dc.typearticlept_PT
dc.description.versionpublishedpt_PT
dc.peerreviewedyespt_PT
degois.publication.issue2pt_PT
degois.publication.titleBiochimica et Biophysica Acta (BBA) - Molecular and Cell Biology of Lipidspt_PT
degois.publication.volume1868pt_PT
dc.identifier.doi10.1016/j.bbalip.2022.159249pt_PT
dc.identifier.articlenumber159249pt_PT
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REQUIMTE - Artigos

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