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dc.contributor.advisorVanegas Guerrero, Javier
dc.contributor.advisorRosas Arango, Sonia Marcela
dc.contributor.authorBonilla Amaya, Hasbleidy
dc.contributor.authorLópez Mosquera, Ensi Yaniari
dc.date.accessioned2022-10-05T16:02:31Z
dc.date.available2022-10-05T16:02:31Z
dc.date.issued2022
dc.identifier.urihttps://repositorio.unicolmayor.edu.co/handle/unicolmayor/5681
dc.description.abstractLos manglares soportan diferentes tensiones por contaminación, nutrientes y fluctuantes cambios de oxígeno y salinidad. En zonas semiáridas, las tensiones se incrementan por los bajos niveles de precipitación, altas temperaturas y radiación. Los microorganismos de estos ecosistemas están adaptados a estas condiciones, sin embargo, son limitados los trabajos de metagenómica que han estudiado la presencia de estos genes en este ecosistema. El objetivo que persigue la presente investigación fue determinar el efecto de la salinidad sobre el recuento de genes asociados a proteínas de estrés en microorganismos de un manglar semiárido del departamento de la Guajira; para ello se obtuvieron muestras de suelo rizosférico concentradas en tres áreas con salinidades contrastantes en el (brazo Riito) del río Ranchería en la Guajira, el ADN total se extrajo y se secuenció mediante Illumina HiSeq 2500. Se detectaron 620 genes asociados a las rutas transportadoras ABC, quorum sensing, recombinación homóloga, sistema secreción bacteriana, respondedoras de estrés, base escisión de reparación (BER) y proteínas de choque térmico, de ellos UNG, ERCC3, XPB, ClpB, xseA, holA, livF estuvieron influenciados por la salinidad alta, GroES, HSPE1, clpA, tres a la media y recC, recA, ClpB, recC, proV a la baja, principalmente asociados a mecanismos de bases de escisión de reparación, choque térmico y reparación por escisión de nucleótidos respectivamente. Finalmente los resultados revelan la influencia de la salinidad sobre las rutas metabólicas que contribuyen a entender la dinámica funcional de proteínas de estrés ambiental del manglar.spa
dc.description.abstractMangroves withstand different stresses from pollution, nutrients, and fluctuating changes in oxygen and salinity. In semi-arid zones, stresses are increased by low levels of precipitation, high temperatures and radiation. The microorganisms of these ecosystems are adapted to these conditions; however, there is limited metagenomic work that has studied the presence of these genes in this ecosystem. The objective of this research was to determine the effect of salinity on the count of genes associated with stress proteins in microorganisms of a semi-arid mangrove in the department of Guajira; for this purpose, rhizospheric soil samples were obtained from three areas with contrasting salinities in the Riito arm of the Rancheria river in Guajira, the total DNA was extracted and sequenced using Illumina HiSeq 2500. A total of 620 genes associated with ABC transporter pathways, quorum sensing, homologous recombination, bacterial secretion system, stress responders, base excision repair (BER) and heat shock proteins were detected, of which UNG, ERCC3, XPB, ClpB, xseA, holA, livF were influenced by high salinity, GroES, HSPE1, clpA, three at medium and recC, recA, ClpB, recC, proV at low, mainly associated with base excision repair, heat shock and nucleotide excision repair mechanisms respectively. Finally, the results reveal the influence of salinity on metabolic pathways that contribute to understand the functional dynamics of mangrove environmental stress proteins.eng
dc.description.tableofcontentsTABLA DE CONTENIDO RESUMEN 10 INTRODUCCIÓN. 12 1. OBJETIVOS 16 1.1 Objetivo general 16 1.2 Objetivo específicos 16 2. ANTECEDENTES 17 3. MARCO REFERENCIAL 20 3.1 Manglar 20 3.2 Proteínas de estrés asociados a microorganismos 21 3.3 Base de escisión de reparación (BER) asociados a microorganismos 21 3.4 Reparación por escisión de nucleótidos (NER) asociados a microorganismos 22 3.5 Reparación de errores de emparejamiento de ADN (MMR) asociados a microorganismos 22 3.6. Recombinación homóloga (NHEJ) asociados a microorganismos 22 3.7 Sistema de secreción bacteriana asociados a microorganismos 23 3.8 Estrés por sequía asociados a microorganismos 23 3.9 Ruta transportadores de ABC asociados a microorganismos. 24 3.10 Quorum sensing asociados a microorganismos. 24 3.11 Estrés oxidativo asociados a microorganismos. 26 3.12 Proteínas de shock térmico asociados a microorganismos. 26 4. DISEÑO METODOLÓGICO 28 4.1 Universo 28 4.1.1 Población 28 4.1.2 Muestra 28 4.2 Hipótesis 28 4.2.1 Variable dependiente 28 4.2.2 Variable independiente 28 6 4.2.3 Indicador 28 4.2.4 Tipo de investigación. 28 4.3 TÉCNICAS Y PROCEDIMIENTOS 29 4.3.1 Descripción del lugar de estudio 29 4.3.2 Extracción de ADN y secuenciación de las muestras 30 4.3.3 Análisis bioinformático y bioestadístico 30 5. RESULTADOS 31 5.1 Ruta transportadores ABC 32 5.2 Quorum sensing. 32 5.3 Recombinación homóloga. 33 5.4 Sistema de secreción bacteriana 34 5.5 Respondedoras de estrés 35 5.6 Reparación de escisión de base (BER) 36 5.7 Reparación de errores de emparejamiento de ADN (MMR) 36 5.8 Reparación por escisión de nucleótidos (NER) 37 5.9 Oxidasa. 38 5.10 Estrés salino. 39 5.11 Esterasa 39 5.12 Chaperonas 40 5.13 Estrés universal 41 5.14 Proteína de choque térmico 41 5.15 Unión de extremos no homólogos (NHEJ) 42 5.16 Superóxido dismutasa 43 6. DISCUSIÓN 44 Sistema respondedoras de estrés asociadas a microorganismos 49 7. CONCLUSIÓN 51 7.1 REFERENCIAS BIBLIOGRÁFICAS 52 7spa
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dc.format.mimetypeapplication/pdfspa
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dc.rightsDerechos Reservados - Universidad Colegio Mayor de Cundinamarca, 2022eng
dc.rights.urihttps://creativecommons.org/licenses/by-nc-sa/4.0/spa
dc.titleEfecto de la salinidad sobre el conteo de genes asociados a microorganismos de estrés ambiental en un manglar semiárido del departamento de la Guajira.spa
dc.typeTrabajo de grado - Pregradospa
dc.description.degreelevelPregradospa
dc.description.degreenameBacteriólogo(a) y Laboratorista Clínicospa
dc.publisher.facultyFacultad de Ciencias de la Saludspa
dc.publisher.placeBogotáspa
dc.publisher.programBacteriología y Laboratorio Clínicospa
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