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Effect of petrochemical contaminants on the photosynthetic physiology on the seagrass Halophila baillonii Ascherson

2026-05Artigo científico Acesso restrito
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datacite.subject.sdg14:Proteger a Vida Marinha
datacite.subject.sdg06:Água Potável e Saneamento
datacite.subject.sdg12:Produção e Consumo Sustentáveis
dc.contributor.authorLima, Maria Cecilia S.
dc.contributor.authorLima, Thomaz Henrique A.
dc.contributor.authorSperandio, Marcus V. Loss
dc.contributor.authorYogui, Gilvan Takeshi
dc.contributor.authorSilva, João
dc.contributor.authorMagalhães, Karine M.
dc.date.accessioned2026-01-16T11:10:41Z
dc.date.available2026-01-16T11:10:41Z
dc.date.issued2026-05
dc.description.abstractOil spills represent a significant threat to seagrasses as hydrocarbons can impair photosynthetic processes and plant functioning, although physiological responses may vary depending on the spill and environmental conditions This study investigates the physiological responses of Halophila baillonii when exposed to the watersoluble fraction (WSF) of crude oil. Photosynthetic pigment composition, maximum quantum yield (Fv/Fm), and oxidative stress indicators malondialdehyde (MDA) and hydrogen peroxide (H2O2) were analyzed after shortterm exposure. A significant increase in chlorophyll a and b concentrations and variations in carotenoid levels were detected, while photochemical efficiency and oxidative stress indicators were maintained. These findings suggest that the species dynamically adjusts its pigment composition to optimize light capture and mitigate oxidative stress, demonstrating physiological plasticity. Its ability to tolerate WSF exposure highlights the species' short-term resilience to hydrocarbon pollution. Future studies should investigate the effects of long-term exposure to different oil types, such as boat fuel, and the recovery mechanisms of seagrasses.eng
dc.description.sponsorshipgrant number 88887.497010/2020–00 and BFP-0204-2.05/25; grant number 440826/2020–9
dc.identifier.doi10.1016/j.aquabot.2025.103984
dc.identifier.issn0304-3770
dc.identifier.urihttp://hdl.handle.net/10400.1/28115
dc.language.isoeng
dc.peerreviewedyes
dc.publisherElsevier
dc.relationAlgarve Centre for Marine Sciences
dc.relationAlgarve Centre for Marine Sciences
dc.relationCentre for Marine and Environmental Research
dc.relation.ispartofAquatic Botany
dc.rights.uriN/A
dc.subjectSeagrass
dc.subjectHydrocarbon pollution
dc.subjectOil spill
dc.subjectOxidative stress
dc.subjectWater-soluble fraction
dc.titleEffect of petrochemical contaminants on the photosynthetic physiology on the seagrass Halophila baillonii Aschersoneng
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleAlgarve Centre for Marine Sciences
oaire.awardTitleAlgarve Centre for Marine Sciences
oaire.awardTitleCentre for Marine and Environmental Research
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04326%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F04326%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/LA%2FP%2F0101%2F2020/PT
oaire.citation.startPage103984
oaire.citation.titleAquatic Botany
oaire.citation.volume204
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameSilva
person.givenNameJoão
person.identifier82814
person.identifier.ciencia-id8216-527E-1BD4
person.identifier.orcid0000-0002-7211-1661
person.identifier.ridJ-7874-2013
person.identifier.scopus-author-id7403023547
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
relation.isAuthorOfPublication61040b53-b17a-40f6-b42e-f5476a7a6ddb
relation.isAuthorOfPublication.latestForDiscovery61040b53-b17a-40f6-b42e-f5476a7a6ddb
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