{"id":92654,"date":"2009-01-04T00:00:00","date_gmt":"2009-01-04T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/estudios-de-patogenicidad-de-viroides-del-genero-apscaviroide-y-hostuviroide-en-ca%c2%adtricos\/"},"modified":"2009-01-04T00:00:00","modified_gmt":"2009-01-04T00:00:00","slug":"estudios-de-patogenicidad-de-viroides-del-genero-apscaviroide-y-hostuviroide-en-ca%c2%adtricos","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/virus-de-las-plantas\/estudios-de-patogenicidad-de-viroides-del-genero-apscaviroide-y-hostuviroide-en-ca%c2%adtricos\/","title":{"rendered":"Estudios de patogenicidad de viroides del g\u00e9nero apscaviroide y hostuviroide en c\u00edtricos."},"content":{"rendered":"<h2>Tesis doctoral de <strong> Pedro Serra Alfonso <\/strong><\/h2>\n<p>Estudios realizados en atalantia citroides, un g\u00e9nero af\u00edn de los c\u00edtricos, mostraron que estaba infectada con un viroide no descrito hasta el momento. Este nuevo viroide tiene un genoma de 293-294 nucle\u00f3tidos con una alta proporci\u00f3n de bases gc, una regi\u00f3n central conservada que es caracter\u00edstica de los miembros del g\u00e9nero apscaviroid, y tambi\u00e9n la regi\u00f3n terminal   conservada que tienen este y otros g\u00e9neros de la familia pospiviroidae. La estructura secundaria de m\u00ednima energ\u00eda libre predicha para este nuevo viroide es una conformaci\u00f3n en forma de varilla con un 68.7% de nucle\u00f3tidos  apareados y con una identidad de secuencia respecto a los otros viroides inferior al 90%, que es el l\u00edmite convenido para separar las diferentes especies de viroides dentro de un mismo g\u00e9nero. Los ensayos de infectividad utilizando el cidro etrog han mostrado que este nuevo viroide produce s\u00edntomas caracter\u00edsticos suaves. La co-inoculaci\u00f3 de este nuevo viroide con citrus bent leaf viroid o con citrus dwarfing viroid, que tambi\u00e9n son miembros del g\u00e9nero apscaviroid, causa interacciones sin\u00e9rgicas que se manifiestan induciendo s\u00edntomas muy pronunciados en las hojas y un enanismo muy marcado. Este aumento en la intensidad de s\u00edntomas no est\u00e1 acompa\u00f1ado por variaciones en la acumulaci\u00f3n del viroide en la planta ya que su concentraci\u00f3n se mantiene inalterada en plantas co-inoculadas. De acuerdo con estas propiedades moleculares y biol\u00f3gicas, as\u00ed como por su capacidad por replicarse en a. Citroides, este nuevo viroide que tentativamente hemos nombrado citrus viroid v (cvd-v),  ha sido propuesto como una nueva especie del g\u00e9nero apscaviroid. el an\u00e1lisis de 64 muestras provenientes de varias zonas citr\u00edcolas ha mostrado que cvd-v est\u00e1 presente en los estados unidos, espa\u00f1a nepal, y el sultanato de oman.  Estos resultados indican que este viroide no ha surgido recientemente y est\u00e1 bastante difundido por diferentes partes del mundo. Los ensayos de transmisi\u00f3n  a naranjo, mandarino, h\u00edb<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Estudios de patogenicidad de viroides del g\u00e9nero apscaviroide y hostuviroide en c\u00edtricos.<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Estudios de patogenicidad de viroides del g\u00e9nero apscaviroide y hostuviroide en c\u00edtricos. <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Pedro Serra Alfonso <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Polit\u00e9cnica de Valencia<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 01\/04\/2009<\/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>Nuria Duran Vila<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: ricardo Flores pedauye <\/li>\n<li>jo\u00ed\u00abl Renaudin (vocal)<\/li>\n<li>m\u00f3nica Gand\u00eda g\u00f3mez (vocal)<\/li>\n<li>Jos\u00e9 Guerri sirera (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Pedro Serra Alfonso Estudios realizados en atalantia citroides, un g\u00e9nero af\u00edn de los c\u00edtricos, mostraron que estaba [&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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