{"id":13547,"date":"2018-03-09T08:59:52","date_gmt":"2018-03-09T08:59:52","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/caracterizacion-y-deteccion-molecular-de-cepas-de-colletotrichum-causantes-de-antracnosis-en-fresa-busqueda-de-proteasas-de-trichoderma-implicadas-en-su-biocontrol\/"},"modified":"2018-03-09T08:59:52","modified_gmt":"2018-03-09T08:59:52","slug":"caracterizacion-y-deteccion-molecular-de-cepas-de-colletotrichum-causantes-de-antracnosis-en-fresa-busqueda-de-proteasas-de-trichoderma-implicadas-en-su-biocontrol","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-de-la-vida\/caracterizacion-y-deteccion-molecular-de-cepas-de-colletotrichum-causantes-de-antracnosis-en-fresa-busqueda-de-proteasas-de-trichoderma-implicadas-en-su-biocontrol\/","title":{"rendered":"Caracterizaci\u00f3n y detecci\u00f3n molecular de cepas de colletotrichum causantes de antracnosis en fresa. b\u00fasqueda de proteasas de trichoderma implicadas en su biocontrol"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Belen Su\u00e1rez Fern\u00e1ndez <\/strong><\/h2>\n<p>Las especies del hongo colletotrichum son las responsables de la antracnosis de la fresa y causan importantes p\u00e9rdidas econ\u00f3micas en el sector. En la uni\u00f3n europea, c.Acutatum es considerado un pat\u00f3geno de cuarentena.  en ee.Uu., La enfermedad tambi\u00e9n es producida por c.Fragariae, que se considera una variedad virulenta de c.Gloeosporioides (estado asexual de glomerella cingulata), del que es indistinguible en t\u00e9rminos morfol\u00f3gicos.  en este trabajo se lleva a cabo la caracterizaci\u00f3n, a nivel bioqu\u00edmico y fisiol\u00f3gico, de 73 cepas de estas especies con el fin de poder diferenciarlas e identificarlas correctamente.  los resultados obtenidos permitieron la divisi\u00f3n de las cepas en dos grandes grupos, centrados en c.Acutatum y c.Fragariae\/gloeosporioides. A partir de estudios moleculares y de datos de secuencia de las regiones its del adnr se desarrollaron m\u00e9todos de diagn\u00f3stico de c.Acutatum y c.Fragariae mediante pcr. Esta t\u00e9cnica result\u00f3 eficaz en la detecci\u00f3n e identificaci\u00f3n r\u00e1pida y fiable de estos pat\u00f3genos en plantas de fresa todav\u00eda asintom\u00e1ticas.  trichoderma harzianum, es un hongo micopar\u00e1sito utilizado como agente de control biol\u00f3gico de hongos fitopat\u00f3genos. Un mecanismo fundamental del efecto antagonista de trichoderma es el micoparasitismo, que se basa en la producci\u00f3n de enzimas hidrol\u00edticas que degradan la pared celular f\u00fangica.  en este trabajo se lleva a cabo el aislamiento y caracterizaci\u00f3n del gen pra1, que codifica una proteasa ac\u00eddica de 28 kda en t.Harzianum cect 2413. previamente la prote\u00edna se purific\u00f3 y caracteriz\u00f3 como una enzima tipo tripsina con afinidad por paredes celulares de c.Acutatum.  las comparaciones de dos p\u00e9ptidos secuenciados con las bases de datos confirmaron la pertenencia de pra1 a la familia quimotripsina de las serin-peptidasas, hasta ahora no descrita en trichoderma. Los ensayos de actividad enzim\u00e1tica y an\u00e1lisis tipo northern mostraron que pra1 se reprime<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Caracterizaci\u00f3n y detecci\u00f3n molecular de cepas de colletotrichum causantes de antracnosis en fresa. b\u00fasqueda de proteasas de trichoderma implicadas en su biocontrol<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Caracterizaci\u00f3n y detecci\u00f3n molecular de cepas de colletotrichum causantes de antracnosis en fresa. b\u00fasqueda de proteasas de trichoderma implicadas en su biocontrol <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Belen Su\u00e1rez Fern\u00e1ndez <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Salamanca<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 29\/10\/2001<\/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>Enrique Monte Vazquez<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: isabel Garc\u00eda-acha <\/li>\n<li>Santiago Gutierrez martin (vocal)<\/li>\n<li>federico Uruburu fern\u00e1ndez (vocal)<\/li>\n<li>Jes\u00fas De la cruz diaz (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Belen Su\u00e1rez Fern\u00e1ndez Las especies del hongo colletotrichum son las responsables de la antracnosis de la fresa [&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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