{"id":64652,"date":"2018-03-09T22:52:44","date_gmt":"2018-03-09T22:52:44","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/factores-que-determinan-la-virulencia-del-virus-del-mosaico-del-pepino-cmv-en-arabidopsis-thaliana\/"},"modified":"2018-03-09T22:52:44","modified_gmt":"2018-03-09T22:52:44","slug":"factores-que-determinan-la-virulencia-del-virus-del-mosaico-del-pepino-cmv-en-arabidopsis-thaliana","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/virus-de-las-plantas\/factores-que-determinan-la-virulencia-del-virus-del-mosaico-del-pepino-cmv-en-arabidopsis-thaliana\/","title":{"rendered":"Factores que determinan la virulencia del virus del mosaico del pepino (cmv) en arabidopsis thaliana"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Jes\u00fas Israel Pag\u00e1n Mu\u00f1oz <\/strong><\/h2>\n<p>La virulencia es una caracter\u00edstica intr\u00ednseca de los par\u00e1sitos que se define como el efecto negativo que estos tienen en la eficacia biol\u00f3gica del hu\u00e9sped, y que hace que tengan una gran importancia social, econ\u00f3mica, y ecol\u00f3gica. Los par\u00e1sitos necesitan a sus hu\u00e9spedes para reproducirse y sobrevivir, por lo que no resulta obvio por qu\u00e9 son virulentos, una pregunta central de la patolog\u00eda. En esta tesis, se analiza el efecto de diferentes factores del par\u00e1sito y del hu\u00e9sped en la evoluci\u00f3n de la virulencia usando como el sistema experimental el formado por el virus del mosaico del pepino (cucumber mosaic virus, cmv) y su hu\u00e9sped natural arabidopsis thaliana.  la respuesta m\u00e1s aceptada a la pregunta de porqu\u00e9 los par\u00e1sitos son virulentos es que es una consecuencia inevitable de su multiplicaci\u00f3n dentro del hu\u00e9sped, y que a mayor multiplicaci\u00f3n mayor virulencia. Sin embargo cuanto mayor sea la virulencia menor ser\u00e1 la esperanza de vida del hu\u00e9sped y por tanto tambi\u00e9n las posibilidades de transmisi\u00f3n del par\u00e1sito a nuevos hu\u00e9spedes, por lo que se establecer\u00e1 un compromiso entre multiplicaci\u00f3n y transmisi\u00f3n, seg\u00fan la denominada hip\u00f3tesis del trade-off. La relaci\u00f3n entre eficacia de transmisi\u00f3n y virulencia depende del modo de transmisi\u00f3n, en los par\u00e1sitos transmitidos verticalmente virulencia y transmisi\u00f3n se correlacionan negativamente y en los par\u00e1sitos transmitidos horizontalmente la correlaci\u00f3n es positiva. Para analizar estas relaciones en la interacci\u00f3n arabidopsis-cmv se estim\u00f3 la acumulaci\u00f3n viral, y el porcentaje de transmisi\u00f3n por semilla (transmisi\u00f3n vertical). La virulencia se estim\u00f3 como el efecto de la infecci\u00f3n en la biomasa total de la planta, en el peso de la roseta como medida del esfuerzo vegetativo, en el peso de las estructuras reproductoras como medida del esfuerzo reproductor y en el peso de semillas como medida de la producci\u00f3n de descendencia. No se encontr\u00f3 correlaci\u00f3n entre multiplicaci\u00f3n del<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Factores que determinan la virulencia del virus del mosaico del pepino (cmv) en arabidopsis thaliana<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Factores que determinan la virulencia del virus del mosaico del pepino (cmv) en arabidopsis thaliana <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Jes\u00fas Israel Pag\u00e1n Mu\u00f1oz <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Polit\u00e9cnica de Madrid<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 23\/05\/2008<\/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>arenal Rodriguez Garcia<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: cipriano Aragoncillo ballesteros <\/li>\n<li>Juan  Antonio Garcia alvarez (vocal)<\/li>\n<li>Carlos Alonso blanco (vocal)<\/li>\n<li>Santiago Francisco Elena fito (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Jes\u00fas Israel Pag\u00e1n Mu\u00f1oz La virulencia es una caracter\u00edstica intr\u00ednseca de los par\u00e1sitos que se define como [&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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