{"id":54095,"date":"2018-03-09T22:41:49","date_gmt":"2018-03-09T22:41:49","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/interaccion-planta-patogeno-mal-de-panama-moleculas-y-mecanismos-involucrados-en-la-interaccion-entre-musa-acuminata-y-fusarium-oxysporum-f-sp-cubense\/"},"modified":"2018-03-09T22:41:49","modified_gmt":"2018-03-09T22:41:49","slug":"interaccion-planta-patogeno-mal-de-panama-moleculas-y-mecanismos-involucrados-en-la-interaccion-entre-musa-acuminata-y-fusarium-oxysporum-f-sp-cubense","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-de-la-vida\/interaccion-planta-patogeno-mal-de-panama-moleculas-y-mecanismos-involucrados-en-la-interaccion-entre-musa-acuminata-y-fusarium-oxysporum-f-sp-cubense\/","title":{"rendered":"Interaccion planta patogeno. mal de panama. moleculas y mecanismos involucrados en la interaccion entre musa acuminata y fusarium oxysporum f sp cubense"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Silvia Lazzaro Alejandra <\/strong><\/h2>\n<p>En esta tesis se estudian diversos aspectos de las mol\u00e9culas y de los mecanismos involucrados en el mal de panam\u00e1. Durante el desarrollo de esta enfermedad, m. Acuminata y f. Oxysporum interaccionan utilizando diversas estrategias desarrolladas durante el transcurso de la coevoluci\u00f3n entre ellos.  ante la presencia de f. Oxysporum, m. Acuminata dispara la s\u00edntesis de diversas fitoalexinas fenilfenalen\u00f3nicas y otros derivados de fenalenona, algunos de ellos con actividad antif\u00fangica. Las fitoalexinas no s\u00f3lo poseen actividad antif\u00fangica directa sobre el pat\u00f3geno sino que, adem\u00e1s, liberan la especie reactiva ox\u00edgeno singlete (1o2) en presencia de luz. La actividad antif\u00fangica de las fitoalexinas fenilfenalen\u00f3nicas en presencia de luz se correlaciona con la intensidad de la producci\u00f3n de 1o2.  esta especie reactiva de ox\u00edgeno es altamente nociva para las c\u00e9lulas. Por una parte es t\u00f3xica para el pat\u00f3geno, y por otra, activa la respuesta hipersensible en discos de hoja de m. Acuminata. La habilidad de las fenilfenalenonas para producir 1o2 se refleja en su mayor capacidad para da\u00f1ar el dna plasm\u00eddico en experimentos in vitro. Adem\u00e1s, est\u00e1 descrito que el 1o2 es capaz de inducir la peroxidaci\u00f3n de l\u00edpidos de membrana, haciendo que las c\u00e9lulas pierdan su integridad. En este da\u00f1o celular las enzimas involucradas son las lipoxigenasas.  m. Acuminata produce de forma natural el compuesto naproxeno, que junto con algunos an\u00e1logos estructurales sint\u00e9ticos se ha mostrado como un inhibidor de lipoxigenasas, adem\u00e1s de poseer actividad antif\u00fangica. El naproxeno, un derivado del \u00e1cido naftalenac\u00e9tico, influye en el crecimiento de pl\u00e1ntulas in vitro de m. Acuminata  y callos de bupleurum salycifolium.  a su vez, f. Oxysporum reacciona a las fenilfenalenonas de m. Acuminata, detoxificando in vitro a una de las m\u00e1s agresivas en oscuridad y convirti\u00e9ndola por metilaci\u00f3n en otra fenilfenalenona mucho m\u00e1s d\u00e9bil como antif\u00fangica. Tanto la raza pat<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Interaccion planta patogeno. mal de panama. moleculas y mecanismos involucrados en la interaccion entre musa acuminata y fusarium oxysporum f sp cubense<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Interaccion planta patogeno. mal de panama. moleculas y mecanismos involucrados en la interaccion entre musa acuminata y fusarium oxysporum f sp cubense <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Silvia Lazzaro Alejandra <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 La laguna<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 14\/07\/2006<\/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>Javier Guti\u00e9rrez Luis<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Santiago Nonell marrugat <\/li>\n<li> Rodriguez perez elsa Mar\u00eda (vocal)<\/li>\n<li> Fernandez castro Jos\u00e9 Javier (vocal)<\/li>\n<li> Diaz hernandez carmen Mar\u00eda (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Silvia Lazzaro Alejandra En esta tesis se estudian diversos aspectos de las mol\u00e9culas y de los mecanismos [&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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