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dc.creatorRodríguez Sánchez, César
dc.creatorLang Lang, Lore
dc.creatorWang Wong, Amy
dc.creatorAltendorf, Karlheinz
dc.creatorGarcía Santamaría, Fernando
dc.creatorLipski, André
dc.date.accessioned2018-06-06T18:01:48Z
dc.date.available2018-06-06T18:01:48Z
dc.date.issued2006-09
dc.identifier.citationhttp://aem.asm.org/content/72/9/5870
dc.identifier.issn1098-5336
dc.identifier.urihttps://hdl.handle.net/10669/74852
dc.description.abstractThe present widespread use of antimicrobials in crop farming is based upon their successful application in human medicine. However, recent evidence suggests that the massive anthropogenic release of antimicrobials into the biosphere has selected for resistant bacteria and facilitated the transfer of resistance genes among them. This work deals with the examination of iceberg lettuce collected at 10 farms from two regions in Costa Rica. Farmers from nine sampling sites regularly apply commercial formulations containing gentamicin, oxytetracycline, streptomycin, or a combination of them without being able to indicate how often and how much of these products have been sprayed onto the crops. One organic farm was also investigated for comparative purposes. Oxytetracycline- and gentamicin-resistant bacteria were abundantly detected using selective enrichment cultures. Furthermore, colony mixtures from selective plates were characterized by chemotaxonomical and molecular fingerprinting methods. Both types of resistant communities accounted for a significant fraction of all culturable bacteria and included several resistance genes as well as factors for their potential horizontal transfer. Given the fact that lettuce is eaten raw, it may contribute to the dissemination of antimicrobialresistant bacteria and/or their resistance genes from the environment to the microbial biota of the human intestine.es_ES
dc.language.isoen_USes_ES
dc.sourceAmerican Society for Microbiology, Vol. 72(9), pp. 5870-5876es_ES
dc.subjectHortalizases_ES
dc.subjectCosta Ricaes_ES
dc.subjectConsumo alimenticioes_ES
dc.subject641.355 2 lechugases_ES
dc.titleLettuce for Human Consumption Collected in Costa Rica Contains Complex Communities of Culturable Oxytetracycline- and Gentamicin-Resistant Bacteriaes_ES
dc.typeartículo científico
dc.date.updated2018-06-01T18:42:38Z
dc.identifier.doi10.1128/AEM.00963-06
dc.description.procedenceUCR::Vicerrectoría de Investigación::Unidades de Investigación::Ciencias de la Salud::Centro de Investigación en Enfermedades Tropicales (CIET)es_ES
dc.description.procedenceUCR::Vicerrectoría de Investigación::Unidades de Investigación::Ciencias Agroalimentarias::Centro de Investigación en Protección de Cultivos (CIPROC)es_ES
dc.description.procedenceUCR::Vicerrectoría de Docencia::Salud::Facultad de Microbiologíaes_ES


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