Please use this identifier to cite or link to this item: http://repositorio.ugto.mx/handle/20.500.12059/1736
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dc.rights.licensehttp://creativecommons.org/licenses/by-nc-nd/4.0es_MX
dc.creatorCONSUELO LETECHIPIA DE LEON-
dc.date.accessioned2020-04-30T12:03:38Z-
dc.date.available2020-04-30T12:03:38Z-
dc.date.issued2017-08-02-
dc.identifier.urihttp://repositorio.ugto.mx/handle/20.500.12059/1736-
dc.description.abstractLas actividades mineras realizadas durante varios siglos de manera ininterrumpida en el estado de Zacatecas han generado un problema de contaminación de suelos con metales y metaloides como el arsénico. En este estudio, se analizó la tolerancia al arsénico de diez aislados bacterianos observándose una alta tolerancia en medio sólido (40 mM – 300 mM de arseniato y 4 mM – 25 mM de arsenito) y en medio líquido (7.5mM – 12 mM de arsenito). Los aislados tolerantes a arsénico fueron identificados mediante análisis bioquímico y amplificación del gen ribosomal 16S (rDNA 16S) como miembros de los géneros Bacillus, Micrococcus y Acinetobacter. Un estudio de resistencia a antibióticos reveló alta prevalencia de la resistencia a beta-lactámicos y moderada a nitrofurantoína, vancomicina y ceftriaxona, sugiriendo que la multiresistencia a antibióticos de estos aislados podría estar relacionada a la tolerancia al arsénico mediante un mecanismo de resistencia presente en plásmidos o en el cromosomaes_MX
dc.language.isoenges_MX
dc.publisherUniversidad de Guanajuatoes_MX
dc.relationhttps://doi.org/10.15174/au.2017.1189-
dc.rightsinfo:eu-repo/semantics/openAccesses_MX
dc.sourceActa Universitaria: Multidisciplinary Scientific Journal. Vol. 27, No 3 (2017)es_MX
dc.titleTolerancia al arsénico en cultivos bacterianos aislados de suelo contaminado con metaleses_MX
dc.title.alternativeArsenic tolerance in bacterial cultures isolated from metal contaminated soil-
dc.typeinfo:eu-repo/semantics/articlees_MX
dc.creator.idinfo:eu-repo/dai/mx/cvu/200491es_MX
dc.subject.ctiinfo:eu-repo/classification/cti/1es_MX
dc.subject.keywordsTolerancia a arsénicoes_MX
dc.subject.keywordsResistencia a antibióticoses_MX
dc.subject.keywordsBacilluses_MX
dc.subject.keywordsMicrococcuses_MX
dc.subject.keywordsAcinetobacteres_MX
dc.subject.keywordsArsenic tolerance-
dc.subject.keywordsAntibiotic resistance-
dc.subject.keywordsBacillus-
dc.subject.keywordsMicrococcus-
dc.subject.keywordsAcinetobacter-
dc.type.versioninfo:eu-repo/semantics/publishedVersiones_MX
dc.creator.twoROSA MARIA RAMIREZ SANTOYO-
dc.creator.threeJESUS GUZMAN MORENO-
dc.creator.fourLUZ ELENA VIDALES RODRIGUEZ-
dc.creator.fiveAzucena Lucero Alaniz-Andrade-
dc.creator.idtwoinfo:eu-repo/dai/mx/cvu/200572es_MX
dc.creator.idthreeinfo:eu-repo/dai/mx/cvu/162843es_MX
dc.creator.idfourinfo:eu-repo/dai/mx/cvu/216928es_MX
dc.description.abstractEnglishSeveral centuries of uninterrupted mining activities in Zacatecas, Mexico has caused soil pol-lution with toxic metals and metalloids such as arsenic. In this study, the arsenic-tolerance of ten bacterial isolates from a metal contaminated site were analyzed, and high toler-ance was observed in both solid (40 mM – 300 mM of sodium dihydrogen arsenate and 4 mM – 25 mM of sodium arsenite) and liquid media (7.2 mM and 11.3 mM arsenite). The arsenic tolerant isolates were identified by biochemical and 16S rRNA-encoding gene am-plification analysis as members of the Bacillus, Micrococcus, and Acinetobacter genus. A study of resistance to antibiotics revealed a high prevalence of resistance to beta-lactams and moderate prevalence to nitrofurantoin, vancomycin, and ceftriaxone, suggesting that the antibiotic multiresistance of the isolates is probably related to arsenic tolerance through a plasmid or chromosomally encoded resistance mechanism-
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