{"id":155026,"date":"2026-01-12T17:16:24","date_gmt":"2026-01-12T17:16:24","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/estudio-de-los-determinantes-geneticos-de-un-antibiotico-y-una-bacteriocina-producidos-por-enterococcus-faecalis\/"},"modified":"2026-01-12T17:16:24","modified_gmt":"2026-01-12T17:16:24","slug":"estudio-de-los-determinantes-geneticos-de-un-antibiotico-y-una-bacteriocina-producidos-por-enterococcus-faecalis","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-de-la-vida\/estudio-de-los-determinantes-geneticos-de-un-antibiotico-y-una-bacteriocina-producidos-por-enterococcus-faecalis\/","title":{"rendered":"Estudio de los determinantes geneticos de un antibiotico y una bacteriocina producidos por enterococcus faecalis"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Manuel Martinez Bueno <\/strong><\/h2>\n<p>Se ha demostrado la presencia de cuatro plasmidos en la estirpe s-48 de enterococcus faecalis, que han sido designados como pmb1, pmb2, pmb3 y pmb4, con tama\u00f1os moleculares de 90, 68, 5,1 y 2,5 kbs, respectivamente.  mediante curacion con bromuro de etidio se ha logrado la eliminacion del plasmido pmb2, asi como la capacidad de producir el antibiotico peptidico as-48. De igual forma se ha logrado la deleccion del plasmido pmb1 que iba asociado a la perdida del caracter bc-48 (produccion e inmunidad a la bacteriocina bc-48). Estos plasmidos, pmb1 y pmb2, portan ademas genes inducibles por feromonas sexuales de e. Faecalis, responsables de la agregacion celular.  se ha logrado la transferencia del caracter bc-48, asi como de as-48, hasta e. Faecalis og1x, lo que iba asociado con la adquisicion por parte de og1x, de los plasmidos pmb1 y pmb2 respectivamente.  finalmente se ha logrado la caracterizacion parcial de ambos plasmidos, pmb1 y pmb2, mediante endonucleasas de restriccion. El gen estructural responsable de as-48, se ha localizado en un fragmento de 4,9 kb de pmb2, y delimitado por las enzimas sal i y sac i.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Estudio de los determinantes geneticos de un antibiotico y una bacteriocina producidos por enterococcus faecalis<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Estudio de los determinantes geneticos de un antibiotico y una bacteriocina producidos por enterococcus faecalis <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Manuel Martinez Bueno <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Granada<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 01\/01\/1991<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Direcci\u00f3n y tribunal<\/h3>\n<ul>\n<li><strong>Director de la tesis<\/strong>\n<ul>\n<li>Mercedes Maqueda Abreu<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Enrique Montoya Gomez <\/li>\n<li>Francisco Malpartida Romero (vocal)<\/li>\n<li>Jos\u00e9 Olivares Pascual (vocal)<\/li>\n<li>Antonio Coloma Jerez (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Manuel Martinez Bueno Se ha demostrado la presencia de cuatro plasmidos en la estirpe s-48 de enterococcus [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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