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Glyphosate: a terrestrial threat to marine plants? a study on the seagrass zostera marina

2025-08-18Journal article Open access
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dc.contributor.authorDeguette, Alizé
dc.contributor.authorPes, Katia
dc.contributor.authorVasconcellos, Bernard
dc.contributor.authorCosta, Monya
dc.contributor.authorSilva, João
dc.contributor.authorBarrote, Isabel
dc.date.accessioned2025-10-20T10:44:22Z
dc.date.available2025-10-20T10:44:22Z
dc.date.issued2025-08-18
dc.description.abstractGlyphosate-based herbicides (GBHs) are extensively used worldwide, raising concerns about their potential effect on non-target aquatic ecosystems. This study investigated the short-term physiological effects of a commercially available GBH on the seagrass Zostera marina under controlled mesocosm conditions. Z. marina individuals were exposed to three concentrations of glyphosate (0.165, 51, and 5100 mg L−1 ) for 4 days, and the impacts on photosynthetic performance, growth rate, photosynthetic pigments content and energy metabolism were assessed. Exposure to 5100 mg L−1 of glyphosate caused rapid water acidification and complete plant mortality within 24 h. Exposure to 51 mg L−1 of glyphosate significantly impaired photosynthetic efficiency and foliar growth rate. Energy availability, photosynthesis and photosynthetic pigments content were highly disrupted at both higher concentrations. Exposure to 0.165 mg L−1 of glyphosate decreased the foliar chlorophyll a/b ratio. These findings show that Z. marina can potentially be threatened by the presence of GBHs even at lower concentrations and underscore the necessity for monitoring herbicide pollution in coastal waters to protect seagrass habitats and associated ecosystems. Further research is needed to assess long-term effects and the role of herbicide formulations in mediating toxicity.eng
dc.identifier.doi10.3390/oceans6030051
dc.identifier.issn2673-1924
dc.identifier.urihttp://hdl.handle.net/10400.1/27838
dc.language.isoeng
dc.peerreviewedyes
dc.publisherMDPI
dc.relationAlgarve Centre for Marine Sciences
dc.relationCentre for Marine and Environmental Research
dc.relation.ispartofOceans
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectSeagrass
dc.subjectZostera marina
dc.subjectGlyphosate
dc.subjectHerbicide contamination
dc.subjectMarine pollution
dc.subjectMarine plant physiology
dc.subjectAgricultural runoff
dc.titleGlyphosate: a terrestrial threat to marine plants? a study on the seagrass zostera marinaeng
dc.typejournal article
dspace.entity.typePublication
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/LA%2FP%2F0101%2F2020/PT
oaire.citation.issue3
oaire.citation.startPage51
oaire.citation.titleOceans
oaire.citation.volume6
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameDeguette
person.familyNamePes
person.familyNameVasconcellos
person.familyNameCosta
person.familyNameSilva
person.familyNameBarrote
person.givenNameAlizé
person.givenNameKatia
person.givenNameBernard
person.givenNameMonya
person.givenNameJoão
person.givenNameIsabel
person.identifier82814
person.identifier.ciencia-idC11B-3C3E-5B4F
person.identifier.ciencia-id531A-DC47-297B
person.identifier.ciencia-id8216-527E-1BD4
person.identifier.ciencia-id801C-0AE4-B5CA
person.identifier.orcid0000-0002-0459-4622
person.identifier.orcid0000-0001-7471-6245
person.identifier.orcid0000-0002-4236-9063
person.identifier.orcid0000-0002-7211-1661
person.identifier.orcid0000-0002-0922-0259
person.identifier.ridJ-7874-2013
person.identifier.scopus-author-id8094380800
person.identifier.scopus-author-id7403023547
person.identifier.scopus-author-id8659654200
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
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