{"id":15446,"date":"2002-05-02T00:00:00","date_gmt":"2002-05-02T00:00:00","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/papel-de-la-relacion-boro-calcio-como-moduladora-del-estres-salino-en-la-fijacion-biologica-del-nitrogeno-en-la-simbiosis-rhizobium-leguminosarum-pisum-sativum\/"},"modified":"2002-05-02T00:00:00","modified_gmt":"2002-05-02T00:00:00","slug":"papel-de-la-relacion-boro-calcio-como-moduladora-del-estres-salino-en-la-fijacion-biologica-del-nitrogeno-en-la-simbiosis-rhizobium-leguminosarum-pisum-sativum","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-de-la-vida\/papel-de-la-relacion-boro-calcio-como-moduladora-del-estres-salino-en-la-fijacion-biologica-del-nitrogeno-en-la-simbiosis-rhizobium-leguminosarum-pisum-sativum\/","title":{"rendered":"Papel de la relaci\u00f3n boro-calcio como moduladora del estr\u00e9s salino en la fijaci\u00f3n biol\u00f3gica del nitr\u00f3geno en la simbiosis rhizobium leguminosarum-pisum sativum"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Abdelaziz El Hamdaoui <\/strong><\/h2>\n<p>Tanto el boro (b) como el calcio (ca) se encuentran implicados en los procesos de simbiosis en leguminosas. Estas simbiosis son extremadamente sensibles al estr\u00e9s salino. En este trabajo se ha estudiado el papel de la relaci\u00f3n b-ca en condiciones salinas.  en este sentido, se ha observado que los suplementos de b-ca recuperan el desarrollo de plantas noduladas de guisante (pisum sativum), muy alterado en condiciones salinas.  se ha definido una relaci\u00f3n b-ca capaz de recuperar la nodulaci\u00f3n, el desarrollo de la simbiosis y la fijaci\u00f3n de nitr\u00f3geno en los n\u00f3dulos, cuando las plantas crecieron en presencia de 75 mm de nacl. Concretamente, el incremento de ca recuper\u00f3 la nodulaci\u00f3n, fuertemente disminuida en presencia de sal (en menos del 10% del control), debido a un incremento en la capacidad de adherencia a la ra\u00edz y del crecimiento de rhizobium leguminosarum en medios salinos. En los procesos de infecci\u00f3n e invasi\u00f3n, tambi\u00e9n muy restringidos en condiciones salinas, aunque existe una recuperaci\u00f3n de la infecci\u00f3n por suplemento de ca, \u00e9sta es principalmente competencia del aumento de b, hasta niveles de 0.6 ppm. Por \u00faltimo, se observ\u00f3 una recuperaci\u00f3n en el desarrollo de los simbiosomas de los n\u00f3dulos tratados con sumplementos de b y ca, que, sin llegar a igualar el tratamiento control, aparecen bien definidos por una membrana peribacteroidea.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Papel de la relaci\u00f3n boro-calcio como moduladora del estr\u00e9s salino en la fijaci\u00f3n biol\u00f3gica del nitr\u00f3geno en la simbiosis rhizobium leguminosarum-pisum sativum<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Papel de la relaci\u00f3n boro-calcio como moduladora del estr\u00e9s salino en la fijaci\u00f3n biol\u00f3gica del nitr\u00f3geno en la simbiosis rhizobium leguminosarum-pisum sativum <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Abdelaziz El Hamdaoui <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Aut\u00f3noma de Madrid<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 05\/02\/2002<\/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>Luis Bola\u00f1os Rosa<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: jose Olivares pascual <\/li>\n<li>Jos\u00e9 enrique Ruiz sainz (vocal)<\/li>\n<li>agustin Garate ormaechea (vocal)<\/li>\n<li>Luis Romero monreal (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Abdelaziz El Hamdaoui Tanto el boro (b) como el calcio (ca) se encuentran implicados en los procesos [&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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