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Multiresistant bacteria: invisible enemies of freshwater mussels

2022Journal article Open access
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dc.contributor.authorSaavedra, Maria José
dc.contributor.authorFernandes, Conceição
dc.contributor.authorTeixeira, Amílcar
dc.contributor.authorÁlvarez, Xana
dc.contributor.authorVarandas, Simone
dc.date.accessioned2022-05-13T10:30:37Z
dc.date.available2022-05-13T10:30:37Z
dc.date.issued2022
dc.description.abstractFreshwater mussels are among the most endangered groups of fauna anywhere in world. The indiscriminate use of antibiotics has led to the emergence of resistant strains. These antibiotic-resistant bacteria play a key role in increasing the risk allied with the use of surface water and in spread of resistance genes. Two endangered freshwater mussel species, Margaritifera margaritifera and Potomida littoralis, were sampled at 4 sampling sites along a 50 km stretch of River Tua. Water samples were taken at same sites. Of the total of 135 isolates, 64.44% (39.26% from water and 25.19% from mussels) were coliform bacteria. Site T1, with the lowest concentration of coliform bacteria, and site T2 were the only ones where M. margaritifera was found. No E. coli isolates were found in this species and the pattern between water and mussels was similar. P. littoralis, which was present at T3/T4 sites, is the one that faces the highest concentration of bacterial toxins, which are found in treated wastewater effluents and around population centers. Sites T3/T4 have the isolates (water and mussels) with the highest resistance pattern, mainly to β-lactams. Water and P. littoralis isolates (T3/T4) showed resistance to penicillins and their combination with clavulanic acid, and to cephalosporins, precisely to a fourth generation of cephalosporin antibiotics. The analysis provides important information on the risk to water systems, as well as the need to investigate possible management measures. It is suggested that future studies on the health status of freshwater bivalves should incorporate measures to indicate bacteriological water quality.pt_PT
dc.description.sponsorshipThis work was supported by the Portuguese Foundation for Science and Technology (FCT) and the Operational Competitiveness Programme (COMPETE), under projects UIDB/04033/2020 and UIDP/04033/2020 (CITAB-Inov4Agro-UTAD). This research was also funded by the Conselleira de Educación, Universidade e Formación Profesional, Xunta de Galicia, Spain, under project R815 131H 64502 (Xana Álvarez). Funding for open access charge was from the Universidade de Vigo/CISUG.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationSaavedra, Maria José; Fernandes, Conceição; Teixeira, Amílcar; Álvarez, Xana; Varandas, Simone (2022). Multiresistant bacteria: invisible enemies of freshwater mussels. Environmental Pollution. ISSN 0269-7491. 295. p. 1-10pt_PT
dc.identifier.doi10.1016/j.envpol.2021.118671pt_PT
dc.identifier.issn0269-7491
dc.identifier.urihttp://hdl.handle.net/10198/25443
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationCentre for the Research and Technology of Agro-Environmental and Biological Sciences
dc.relationCentre for the Research and Technology of Agro-Environmental and Biological Sciences
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectAntibacterialpt_PT
dc.subjectBivalvespt_PT
dc.subjectMargaritifera margaritiferapt_PT
dc.subjectPotomida littoralispt_PT
dc.subjectBioindicatorspt_PT
dc.subjectWater qualitypt_PT
dc.subjectColiform bacteriapt_PT
dc.subjectEscherichia colipt_PT
dc.titleMultiresistant bacteria: invisible enemies of freshwater musselspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleCentre for the Research and Technology of Agro-Environmental and Biological Sciences
oaire.awardTitleCentre for the Research and Technology of Agro-Environmental and Biological Sciences
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04033%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F04033%2F2020/PT
oaire.citation.startPage118671pt_PT
oaire.citation.titleEnvironmental Pollutionpt_PT
oaire.citation.volume295pt_PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
person.familyNameFernandes
person.familyNameTeixeira
person.givenNameConceição
person.givenNameAmilcar
person.identifier15483
person.identifier2153193
person.identifier.ciencia-id6514-3D41-4534
person.identifier.ciencia-id9510-3CF3-0393
person.identifier.orcid0000-0003-2873-501X
person.identifier.orcid0000-0001-5336-1174
person.identifier.scopus-author-id23018336600
person.identifier.scopus-author-id7202385393
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
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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