{"id":106182,"date":"2018-03-11T10:30:05","date_gmt":"2018-03-11T10:30:05","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/relaciones-existentes-entre-la-accion-de-las-sustancias-humicas-sobre-el-desarrollo-vegetal-y-la-sa%c2%adntesis-endogena-de-los-principales-fitorreguladores\/"},"modified":"2018-03-11T10:30:05","modified_gmt":"2018-03-11T10:30:05","slug":"relaciones-existentes-entre-la-accion-de-las-sustancias-humicas-sobre-el-desarrollo-vegetal-y-la-sa%c2%adntesis-endogena-de-los-principales-fitorreguladores","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/fisiologia-vegetal\/relaciones-existentes-entre-la-accion-de-las-sustancias-humicas-sobre-el-desarrollo-vegetal-y-la-sa%c2%adntesis-endogena-de-los-principales-fitorreguladores\/","title":{"rendered":"Relaciones existentes entre la acci\u00f3n de las sustancias h\u00famicas sobre el desarrollo vegetal y la s\u00edntesis end\u00f3gena de los principales fitorreguladores"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Mar\u00eda Ver\u00f3nica Mora <\/strong><\/h2>\n<p>Relationships between the action of humic substances on plant growth and endogenous synthesis of main plant growth regulators  mora, mar\u00eda ver\u00f3nica department of chemistry and soil chemistry, faculty of science, university of navarra, 2010  numerous studies have reported the ability of humic substances (hs) to increase shoot growth and affect root development and architecure. However, the mechanism responsible for these effects is poorly understood. It is possible that the shoot promoting effect of hs involves an effect on root h+-atpase activity and nitrate root-shoot distribution that, causes changes in the root-shoot distribution of certain cytokinins, polyamines and abscisic acid. On the other hand, the effect of hs on root development must be related to the presence of plant growth regulators in their structure but the humic acid (ha) employed in this work, are not presence of phytoregulators in their structure. Also, ha application was associated with changes in nitric oxide (no), indolacetic acid (iaa) concentration and ethylene production, as well as, an increase in root development and changes in their root architecture. Results obtained using inhibitors of auxin transport or action, inhibitors of ethylene biosynthesis or action, and a scavenger of no indicate that the increase in the root concentration of these three phytoregulators caused by ha, does not play an essential role in the expression of the ha-induced macro-morphological root changes. Other factors, working in conjunction or independently of those ha-affected plant growth regulators, must be involved in ha whole action on root growth and morphology. Likewise, the increases in iaa and ethylene induced by ha are not mediated by the previous increase in no, and the increase in ethylene root production is controlled by the concomitant increase in iaa root concentration. Finally, the bioactivity of hs on promoting plant growth must be related to the structure and not to the presence of phytoregulators, and hs may act as a regulator of hormonal balance with respect to plant growth.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Relaciones existentes entre la acci\u00f3n de las sustancias h\u00famicas sobre el desarrollo vegetal y la s\u00edntesis end\u00f3gena de los principales fitorreguladores<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Relaciones existentes entre la acci\u00f3n de las sustancias h\u00famicas sobre el desarrollo vegetal y la s\u00edntesis end\u00f3gena de los principales fitorreguladores <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Mar\u00eda Ver\u00f3nica Mora <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Navarra<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 22\/12\/2010<\/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 Mar\u00eda Garcia Mina Freire<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: manuel Sanchez diaz <\/li>\n<li>alfredo Polo sanchez (vocal)<\/li>\n<li>Francisco Javier Romera ruiz (vocal)<\/li>\n<li>pedro Mar\u00eda Aparicio tejo (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Mar\u00eda Ver\u00f3nica Mora Relationships between the action of humic substances on plant growth and endogenous synthesis of [&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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