Caracterización metagenómica de genes asociados a la síntesis y resistencia de compuestos antimicrobianos en suelos de manglar.

dc.contributor.advisorPolanía, Jaime
dc.contributor.advisorVanegas Guerrero, Javier
dc.contributor.authorSepúlveda Correa, Alejandro
dc.date.accessioned2021-08-11T16:38:37Z
dc.date.available2021-08-11T16:38:37Z
dc.date.issued2021
dc.descriptionilustracionesspa
dc.description.abstractLos manglares responden a factores bióticos y abióticos, como la salinidad variable y el estrés antropogénico (por ejemplo, la contaminación por desechos urbanos). Esos factores también pueden afectar a las poblaciones de microorganismos e incluso a la relativa abundancia de genes que intervienen en las respuestas biológicas. Esta investigación tenía por objeto identificar los genes asociados con la resistencia y la biosíntesis de los compuestos antimicrobianos en los suelos de manglares sometidos a salinidades contrastantes. El ADN total se extrajo de muestras de suelo rizosférico de tres áreas con diferentes salinidades en un manglar contaminado con aguas residuales en la desembocadura del río Ranchería (La Guajira, Colombia) para su secuenciamiento mediante Illumina HiSeq 2500. El análisis de la diversidad funcional y taxonómica reveló un dominio de 51 familias y 182 géneros de actinobacterias. Las vías de biosíntesis más comunes fueron para la estreptomicina y los monobactámicos. Fue posible asociar 43 genes relacionados con la síntesis de compuestos antimicrobianos, y la abundancia de 24 de ellos se vio considerablemente influida por la salinidad. El aumento de la concentración de sal influyó en las vías metabólicas y en la abundancia diferencial de los genes asociados con la síntesis de compuestos antimicrobianos (por ejemplo, rfbB / rffG, INO1 / ISYNA1, rfbA / rffH, sat / met3, asd, lysC, proA, aspB, fabG). Además, de los 29 genes implicados en la resistencia intrínseca a los antibióticos, 16 estaban influidos significativamente por la salinidad (por ejemplo, aacA, oleC4, oleC5, vgb, acrB / mexB / adeJ / smeE / mtrD / cmeB, bpeF, mexF). Se concluye que los mecanismos de tolerancia y adaptabilidad a las condiciones de estrés salino favorecerían la síntesis de compuestos antimicrobianos en los manglares sujetos a contaminación por aguas residuales. (Tomado de la fuente)spa
dc.description.abstractMangroves respond to biotic and abiotic factors, such as variable salinity and anthropogenic stress (e.g., pollution from urban waste). Such factors may also affect populations of microorganisms and even the relative abundance of genes involved in biological responses. This research aimed to identify genes associated with resistance and biosynthesis of antimicrobial compounds in mangrove soils subjected to contrasting salinities. Total DNA was extracted from rhizospheric soil samples from three areas with different salinities in a wastewater contaminated mangrove at the Ranchería River's mouth (La Guajira, Colombia) for sequencing using Illumina HiSeq 2500. Functional and taxonomic diversity analysis revealed a domain of 51 families and 182 genera of actinobacteria. The most common biosynthesis pathways were for streptomycin and monobactamics. It was possible to associate 43 genes associated with the synthesis of antimicrobial compounds, and the abundance of 24 of them was significantly influenced by salinity. The increase in salt concentration influenced the metabolic pathways and the differential abundance of genes associated with the synthesis of antimicrobial compounds (e.g., rfbB / rffG, INO1 / ISYNA1, rfbA / rffH, sat / met3, asd, lysC, proA, aspB, fabG). In addition, out of 29 genes involved in intrinsic antibiotic resistance, 16 were significantly influenced by salinity (e.g. aacA, oleC4, oleC5, vgb, acrB / mexB / adeJ / smeE / mtrD / cmeB, bpeF, mexF). It is concluded that the mechanisms of tolerance and adaptability to the conditions of saline stress would favor the synthesis of antimicrobial compounds in mangroves subject to contamination by wastewater. (Tomado de la fuente)eng
dc.description.degreelevelMaestríaspa
dc.description.degreenameMagister en Bosques y Conservación Ambientalspa
dc.description.researchareaComponente físico, biológico, químico y geológico del medio marino e hídrico continentalspa
dc.format.extent68 páginasspa
dc.format.mimetypeapplication/pdfspa
dc.identifier.instnameUniversidad Nacional de Colombiaspa
dc.identifier.reponameRepositorio Institucional Universidad Nacional de Colombiaspa
dc.identifier.repourlhttps://repositorio.unal.edu.co/spa
dc.identifier.urihttps://repositorio.unal.edu.co/handle/unal/79917
dc.language.isospaspa
dc.publisherUniversidad Nacional de Colombia Sede Medellinspa
dc.publisher.branchUniversidad Nacional de Colombia - Sede Medellínspa
dc.publisher.departmentDepartamento de Ciencias Forestalesspa
dc.publisher.facultyFacultad de Ciencias Agrariasspa
dc.publisher.placeMedellínspa
dc.publisher.programMedellín - Ciencias Agrarias - Maestría en Bosques y Conservación Ambientalspa
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dc.rights.accessrightsinfo:eu-repo/semantics/openAccessspa
dc.rights.licenseAtribución-NoComercial-SinDerivadas 4.0 Internacionalspa
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/spa
dc.subject.ddc500 - Ciencias naturales y matemáticasspa
dc.subject.ddc630 - Agricultura y tecnologías relacionadas::634 - Huertos, frutas, silviculturaspa
dc.subject.lembAguas residuales
dc.subject.lembManglares (Ecología)
dc.subject.otherActinobacterias
dc.subject.proposalManglaresspa
dc.subject.proposalEcología microbianaeng
dc.subject.proposalMetabolitos secundariosspa
dc.subject.proposalResistencia antimicrobianaspa
dc.subject.proposalAmbientes costeros áridosspa
dc.subject.proposalMicrobial ecologyeng
dc.subject.proposalSecondary metaboliteseng
dc.subject.proposalAntibiotics resistanceeng
dc.subject.proposalArid coastal environmentseng
dc.titleCaracterización metagenómica de genes asociados a la síntesis y resistencia de compuestos antimicrobianos en suelos de manglar.spa
dc.title.translatedMetagenomic characterization of genes associated with the synthesis and resistance of antimicrobial compounds in mangrove soils.eng
dc.typeTrabajo de grado - Maestríaspa
dc.type.coarhttp://purl.org/coar/resource_type/c_bdccspa
dc.type.coarversionhttp://purl.org/coar/version/c_ab4af688f83e57aaspa
dc.type.contentTextspa
dc.type.driverinfo:eu-repo/semantics/masterThesisspa
dc.type.redcolhttp://purl.org/redcol/resource_type/TMspa
dc.type.versioninfo:eu-repo/semantics/acceptedVersionspa
dcterms.audienceEspecializadaspa
oaire.accessrightshttp://purl.org/coar/access_right/c_abf2spa
oaire.awardtitleDiversidad funcional de microorganismos asociados al ciclaje de C, N y P en el manglar la Ranchería (La Guajira) mediante un acercamiento de metatranscriptómicaspa
oaire.fundernameMinisterio de Ciencia, Tecnología e Innovaciónspa

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