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Salinity-induced modulation of phenolic compounds and antioxidant activity in lavandula viridis and thymus lotocephalus

2026-08-12Artigo científico Acesso aberto
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datacite.subject.sdg02:Erradicar a Fome
datacite.subject.sdg12:Produção e Consumo Sustentáveis
datacite.subject.sdg13:Ação Climática
dc.contributor.authorPaixão Mansinhos, Inês Filipa
dc.contributor.authorGonçalves, Sandra
dc.contributor.authorRodríguez Solana, Raquel
dc.contributor.authorPereira-Caro, Gema
dc.contributor.authorRomano, Anabela
dc.date.accessioned2026-09-18T08:39:33Z
dc.date.available2026-09-18T08:39:33Z
dc.date.issued2026-08-12
dc.description.abstractMediterranean Lamiaceae species are important sources of bioactive compounds with potential applications in food, pharmaceutical, and cosmetic industries. In the present study, controlled salinity was evaluated as a biotechnological elicitation strategy to enhance the accumulation of bioactive metabolites in two species, Lavandula viridis and Thymus lotocephalus, cultured in vitro. Morphological, biochemical and metabolic responses of shoots grown for seven weeks in culture medium containing four NaCl concentrations (0, 25, 50, or 75 mM) were assessed. Mild salinity (25 mM NaCl) stimulated shoot growth in both species, whereas higher salt concentrations progressively reduced growth. Salinity induced oxidative stress, as indicated by elevated malondialdehyde (MDA) levels at 25 mM NaCl in both species, while hydrogen peroxide (H2O2) exhibited contrasting patterns, decreasing with increasing salinity in L. viridis but peaking at 50 mM NaCl in T. lotocephalus. Salt stress caused reductions in photosynthetic pigments, phenolic compounds, antioxidant capacity (DPPH, FRAP, ABTS, and ORAC), and overall metabolic performance in L. viridis, indicating limited tolerance to salinity. Conversely, T. lotocephalus displayed greater metabolic plasticity, characterized by increased levels of phenolic compounds, particularly rosmarinic acid and its derivatives, and higher antioxidant activity of the extracts, as well as the accumulation of proline and soluble sugars. These findings demonstrate marked species-specific differences in salinity responses and identify controlled salinity as an effective elicitation strategy to sustainably produce high-value bioactive compounds in T. lotocephalus.eng
dc.description.sponsorshipUID/05183/2025; CEECINST/00052/2021; grant RYC2022-036888-I; MCIU/AEI/10.13039/501100011033
dc.identifier.doi10.3390/biom16081178
dc.identifier.issn2218-273X
dc.identifier.urihttp://hdl.handle.net/10400.1/29459
dc.language.isoeng
dc.peerreviewedyes
dc.publisherMDPI AG
dc.relationCHANGE - Global Change and Sustainability Institute
dc.relation.ispartofBiomolecules
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectAbiotic stress
dc.subjectAntioxidant activity
dc.subjectUHPLC-HRMS-MS
dc.subjectIn vitro culture
dc.subjectLamiaceae
dc.subjectMediterranean plants
dc.subjectPhenolic compounds
dc.subjectSalinity
dc.subjectElicitation
dc.titleSalinity-induced modulation of phenolic compounds and antioxidant activity in lavandula viridis and thymus lotocephaluseng
dc.typejournal article
dspace.entity.typePublication
oaire.awardNumberLA/P/0121/2020
oaire.awardTitleCHANGE - Global Change and Sustainability Institute
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/LA%2FP%2F0121%2F2020/PT
oaire.citation.issue8
oaire.citation.startPage1178
oaire.citation.titleBiomolecules
oaire.citation.volume16
oaire.fundingStream6817 - DCRRNI ID
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNamePaixão Mansinhos
person.familyNameGonçalves
person.familyNameRodríguez Solana
person.familyNameRomano
person.givenNameInês Filipa
person.givenNameSandra
person.givenNameRaquel
person.givenNameAnabela
person.identifier624004
person.identifier.ciencia-id4114-8891-54E1
person.identifier.ciencia-id9F19-E3AE-2C59
person.identifier.ciencia-idFE10-7889-0562
person.identifier.ciencia-id8A18-7E9A-3B0E
person.identifier.orcid0000-0001-9632-8876
person.identifier.orcid0000-0002-3038-4434
person.identifier.orcid0000-0003-4204-7387
person.identifier.orcid0000-0002-7204-7428
person.identifier.ridM-6988-2017
person.identifier.ridI-6317-2015
person.identifier.scopus-author-id8583003200
person.identifier.scopus-author-id55081917100
person.identifier.scopus-author-id56249997600
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
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relation.isAuthorOfPublicationa8b335b2-45cc-4578-89b0-153273014280
relation.isAuthorOfPublicatione54528cf-d25d-424e-b395-5f41019f05ee
relation.isAuthorOfPublicatione3343b60-17d3-4f5e-a2bf-06f26da69206
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