{"id":75916,"date":"2018-03-09T23:21:15","date_gmt":"2018-03-09T23:21:15","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/estudio-fisiologico-de-la-enfermedad-de-petri-en-plantas-jovenes-de-vitis-vinifera-l\/"},"modified":"2018-03-09T23:21:15","modified_gmt":"2018-03-09T23:21:15","slug":"estudio-fisiologico-de-la-enfermedad-de-petri-en-plantas-jovenes-de-vitis-vinifera-l","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-de-la-vida\/estudio-fisiologico-de-la-enfermedad-de-petri-en-plantas-jovenes-de-vitis-vinifera-l\/","title":{"rendered":"\u00abestudio fisiol\u00f3gico de la enfermedad de petri en plantas j\u00f3venes de vitis vinifera l.\u00bb"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Pedro G\u00f3mez L\u00f3pez <\/strong><\/h2>\n<p>Dado que en los \u00faltimos a\u00f1os se ha ido incrementando la mortalidad en plantaciones de vides j\u00f3venes (1 a 3 a\u00f1os), debido a la recientemente conocida \u00abenfermedad de petri\u00bb, y puesto que existe un gran desconocimiento en muchos aspectos relacionados con la fisiolog\u00eda de esta enfermedad vascular, resulta de gran inter\u00e9s profundizar en el conocimiento cient\u00edfico de los procesos fisiol\u00f3gicos de esta enfermedad, adem\u00e1s de establecer el posible papel de los compuestos fen\u00f3licos en los mecanismos de resistencia end\u00f3gena de dichas plantas.  en este sentido, se ha observado que la sintomatolog\u00eda interna de una planta joven de vid con la enfermedad de petri, es debida a la obstrucci\u00f3n del lumen de los vasos xilem\u00e1ticos del sistema vascular por la formaci\u00f3n de tilosas, y\/o adem\u00e1s de la deposici\u00f3n de geles o gomas p\u00e9cticas. Dichas alteraciones son producidas por hongos localizados en el interior de los vasos xilem\u00e1ticos, formando incluso estructuras de resistencia. Los hongos responsables de esta enfermedad han sido aislados e identificados por pcr, atendiendo a las zonas afectadas de las plantas, habiendose detectado la presencia de: phaeoacremonium aleophilum, phaeomoniella chlamydospora, botryosphaeria spp., Phomopsis viticola, eutypa lata, cylindrocarpon sp., stereum  hirsutum y fusarium oxysporum, con una alta frecuencia. De la determinaci\u00f3n de diferentes actividades enzim\u00e1ticas (celul\u00edtica, hemicelul\u00edtica, pectinol\u00edtica y lignol\u00edtica) capaces de degradar los componentes de la pared celular vegetal, cabe destacar la capacidad de fusarium oxysporum, phomopsis vit\u00edcola y phaeoacremonium aleophilum para degradar celulosa, pectina y lignina, respectivamente, siendo por tanto \u00e9stos los principales responsables de las alteraciones morfol\u00f3gicas causadas en el sistema vascular.  por otro lado, al analizar los cambios en el contenido de compuestos fen\u00f3licos de diferentes \u00f3rganos de plantas j\u00f3venes de vid, se observa una acu<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>\u00abestudio fisiol\u00f3gico de la enfermedad de petri en plantas j\u00f3venes de vitis vinifera l.\u00bb<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 \u00abestudio fisiol\u00f3gico de la enfermedad de petri en plantas j\u00f3venes de vitis vinifera l.\u00bb <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Pedro G\u00f3mez L\u00f3pez <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Murcia<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 21\/07\/2005<\/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>Jos\u00e9 Antonio  Del Rio Conesa<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: manuel Acosta echeverria <\/li>\n<li>Juan Carre\u00f1o espin (vocal)<\/li>\n<li>pablo Melgarejo moreno (vocal)<\/li>\n<li>Mar\u00eda  asuncion Morte gomez (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Pedro G\u00f3mez L\u00f3pez Dado que en los \u00faltimos a\u00f1os se ha ido incrementando la mortalidad en plantaciones [&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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