Please use this identifier to cite or link to this item: https://hdl.handle.net/10316/107686
DC FieldValueLanguage
dc.contributor.authorMonteiro, Cristina-
dc.contributor.authorSario, Sara-
dc.contributor.authorMendes, Rafael-
dc.contributor.authorMariz-Ponte, Nuno-
dc.contributor.authorSilva, Sónia-
dc.contributor.authorOliveira, Helena-
dc.contributor.authorBastos, Verónica-
dc.contributor.authorSantos, Conceição-
dc.contributor.authorDias, Maria Celeste-
dc.date.accessioned2023-07-27T08:30:12Z-
dc.date.available2023-07-27T08:30:12Z-
dc.date.issued2018-
dc.identifier.issn1687-8159pt
dc.identifier.issn1687-8167pt
dc.identifier.urihttps://hdl.handle.net/10316/107686-
dc.description.abstractChromium(Cr) contamination in arable soils and irrigating water remains a priority, particularly due to the challenges posed to crop production and food safety. Long-term Cr(VI) effects remain less addressed than short-term ones, particularly regarding organspecific genotoxic profiles. Here we used the crop Lactuca sativa growing in a protected horticultural system and irrigated for 21 days with Cr(VI) (up to 200mg/L). Besides the oxidative stress, the genotoxicity was evaluated. Shoots and roots showed distinctive oxidative stress status and genotoxic effects, in a dose-dependent manner.While 50mg/L stimulated antioxidant activities and no major genotoxic effects were found, plants exposed to ≥150 showed an increase of oxidative disorders, together with cytostatic and DNA damage effects, and some mitotic impairment. Leaves showed less oxidative signs at 50mg/L, while at 150/200mg/L the antioxidant battery was stimulated. In Cr treated plants, the highest dose increased the DNA damage, reinforcing the idea that DNA breaks were related to mitotic disorders in higher doses. In conclusion, long-term exposure data show a highly responsive root, with a quadratic response meaning higher defenses at lower Cr doses, and higher oxidative and DNA damage and cytostatic effect at a higher dose.pt
dc.language.isoengpt
dc.publisherHindawipt
dc.relationUID/BIA/04004/2013pt
dc.relationUID/ QUI/00062/2013pt
dc.relationPOCI/01/0145/FEDER/007265pt
dc.relationUID/ QUI/50006/2013pt
dc.relationSFRH/BPD/ 100865/2014pt
dc.relationSFRH/BPD/74299/2010pt
dc.relationSFRH/BD/100865/2017pt
dc.rightsopenAccesspt
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt
dc.titleBridging a Gap between Cr(VI)-Induced Oxidative Stress and Genotoxicity in Lettuce Organs after a Long-Term Exposurept
dc.typearticle-
degois.publication.firstPage1pt
degois.publication.lastPage8pt
degois.publication.titleInternational Journal of Agronomypt
dc.peerreviewedyespt
dc.identifier.doi10.1155/2018/5738014pt
degois.publication.volume2018pt
dc.date.embargo2018-01-01*
uc.date.periodoEmbargo0pt
item.cerifentitytypePublications-
item.languageiso639-1en-
item.fulltextCom Texto completo-
item.grantfulltextopen-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.openairetypearticle-
crisitem.author.researchunitCFE - Centre for Functional Ecology - Science for People & the Planet-
crisitem.author.orcid0000-0002-3083-6218-
Appears in Collections:I&D CFE - Artigos em Revistas Internacionais
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