{"id":78943,"date":"2006-03-03T00:00:00","date_gmt":"2006-03-03T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/estudios-epidemiologicos-y-de-patogenicidad-de-monosporascus-cannonballus-pollack-et-uecker\/"},"modified":"2006-03-03T00:00:00","modified_gmt":"2006-03-03T00:00:00","slug":"estudios-epidemiologicos-y-de-patogenicidad-de-monosporascus-cannonballus-pollack-et-uecker","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-agrarias\/estudios-epidemiologicos-y-de-patogenicidad-de-monosporascus-cannonballus-pollack-et-uecker\/","title":{"rendered":"Estudios epidemiol\u00f3gicos y de patogenicidad de monosporascus cannonballus pollack et uecker"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Roberto Beltr\u00e1n Mart\u00ednez <\/strong><\/h2>\n<p>El ascomiceto monosporascus cannonballus pollack et uecker es uno de los principales hongos asociados al s\u00edndrome del \u00abcolapso\u00bb, que afecta al cultivo de cucurbit\u00e1ceas en espa\u00f1a y otros pa\u00edses. Las ascospsoras son el in\u00f3culo principal del hongo, quedando en el suelo tras la descomposici\u00f3n de las ra\u00edces afectadas, pudiendo ser extra\u00eddas del suelo mediante un proceso f\u00edsico, que permite su cuantificaci\u00f3n a lo largo del tiempo. Bas\u00e1ndose en esta t\u00e9cnica, se han realizado varios estudios epidemiol\u00f3gicos que han permitido obtener resultados innovadores.  se ha estudiado la din\u00e1mica poblacional de las ascosporas de m.Cannonballus en suelos con diferentes condiciones h\u00eddricas y de cultivo. En campos con cultivo de mel\u00f3n, se ha observado que el nivel de ascosporas alcanza un m\u00e1ximo siete meses despu\u00e9s de la plantaci\u00f3n (3-4 meses despu\u00e9s del final del cultivo), para ir disminuyendo despu\u00e9s progresivamente, hasta llegar a niveles similares a los iniciales a los doce meses de la plantaci\u00f3n. en campos con encharcamiento invernal, se ha observado un descenso progresivo del nivel de ascosporas, constatando que \u00e9stas pueden sobrevivir en suelo al menos por un periodo de tres a\u00f1os, sin haber perdido su afectividad. m.Cannonballus ha sido considerado como un hongo termofilo, t\u00edpico de zonas des\u00e9rticas y semi\u00e1ridas; en este estudio se ha demostrado que es capaz de sobrevivir en zonas templadas y en condiciones de encharcamiento.  se ha realizado un estudio de cuantificaci\u00f3n de ascosporas en suelo de campos de mel\u00f3n de varias zonas productoras de la comunidad Valenciana, detect\u00e1ndose ascosporas de m.Cannoballus en todos ellos. En el momento de aparici\u00f3n de s\u00edntomas de \u00abcolapso\u00bb, se ha observado diferencias significativas entre los campos y entre las zonas sintom\u00e1ticas y asintom\u00e1ticas, a favor de unas u otras, seg\u00fan los campos. Al comparar los niveles iniciales de ascosporas en suelo con los obtenidos dos o tres meses tras<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Estudios epidemiol\u00f3gicos y de patogenicidad de monosporascus cannonballus pollack et uecker<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Estudios epidemiol\u00f3gicos y de patogenicidad de monosporascus cannonballus pollack et uecker <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Roberto Beltr\u00e1n Mart\u00ednez <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Polit\u00e9cnica de Valencia<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 03\/03\/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>Josep Armengol Fort\u00ed<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Rafael manuel Jimenez diaz <\/li>\n<li>Jos\u00e9 Bejarano alcazar (vocal)<\/li>\n<li>Mar\u00eda  belen Pico sirvent (vocal)<\/li>\n<li> Ortega gea Ana Mar\u00eda (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Roberto Beltr\u00e1n Mart\u00ednez El ascomiceto monosporascus cannonballus pollack et uecker es uno de los principales hongos asociados [&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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