{"id":52838,"date":"2015-03-03T10:47:02","date_gmt":"2015-03-03T15:47:02","guid":{"rendered":"http:\/\/www.farmchemicalsinternational.com\/?p=52838"},"modified":"2021-06-14T15:35:18","modified_gmt":"2021-06-14T19:35:18","slug":"key-crops-stand-to-benefit-from-discovery","status":"publish","type":"post","link":"https:\/\/www.agribusinessglobal.com\/es\/agrochemicals\/key-crops-stand-to-benefit-from-discovery\/","title":{"rendered":"Los cultivos clave se benefician del descubrimiento"},"content":{"rendered":"<div class=\"entry\">\n<p>Los cient\u00edficos australianos han encontrado una manera de mejorar la producci\u00f3n de la enzima Rubisco, esencial para el crecimiento de las plantas, y cultivos importantes se beneficiar\u00e1n.<\/p>\n<p>El descubrimiento avanza los esfuerzos para mejorar la seguridad alimentaria mundial que tienen como objetivo aumentar los rendimientos de cultivos b\u00e1sicos clave, como el trigo, el algod\u00f3n y el arroz, seg\u00fan <a href=\"http:\/\/www.eurekalert.org\/pub_releases\/2015-03\/anu-spo030215.php\" target=\"_blank\" rel=\"noopener\">Universidad Nacional de Australia<\/a>.<\/p>\n<p>&quot;La enzima Rubisco ha desconcertado a los cient\u00edficos durante m\u00e1s de 50 a\u00f1os, ya que es miles de veces menos eficiente en su trabajo que la mayor\u00eda de las otras enzimas&quot;, dijo el Dr. Spencer Whitney de la Universidad Nacional Australiana (ANU), quien fue l\u00edder del equipo de investigaci\u00f3n de la Centro de excelencia para la fotos\u00edntesis traslacional del Australian Research Council (ARC), que financi\u00f3 el estudio junto con el proyecto Realizing Increased Photosynthetic Efficiency (RIPE).<\/p>\n<p>Gran parte de la confusi\u00f3n proviene de la estructura altamente compleja de Rubisco. Es una enzima con 16 piezas que requiere la ayuda de m\u00e1s de otras 12 prote\u00ednas para ensamblarla correctamente<\/p>\n<p>\u201cNos enfocamos en una de las prote\u00ednas asociadas de Rubisco, llamada RAF1. Al suministrar una Rubisco con su RAF1 asociado, encontramos que la cantidad de Rubisco producida en hojas podr\u00eda ser m\u00e1s del doble \u201d, dijo.<\/p>\n<p>Rubisco es la prote\u00edna m\u00e1s abundante del planeta. Tambi\u00e9n tiene una de las responsabilidades m\u00e1s importantes de la vida en la Tierra: la conversi\u00f3n de di\u00f3xido de carbono en compuestos org\u00e1nicos, los componentes b\u00e1sicos de todas las c\u00e9lulas vegetales y animales.<\/p>\n<p>\u201cComprender la asociaci\u00f3n con RAF1 tiene implicaciones importantes con respecto a los esfuerzos en curso para acelerar la actividad lenta de Rubisco, un objetivo clave para mejorar la productividad de los cultivos\u201d, dijo el Dr. Whitney. &quot;En un mundo con una demanda creciente de alimentos, este es un hito hacia el aumento de la tasa de fotos\u00edntesis en las plantas de cultivo que dependen en gran medida de Rubisco&quot;.<\/p>\n<p>El estudio, realizado en colaboraci\u00f3n con la Universidad de Wollongong y publicado en el \u00faltimo <i>PNAS<\/i> journal, muestra que Rubisco y RAF1 han evolucionado juntos. Los cambios en una prote\u00edna requieren un cambio de equilibrio en la otra.<\/p>\n<p>&quot;Mejoramos la producci\u00f3n de un Rubisco modificado en hojas insertando una versi\u00f3n complementaria modificada de RAF1&quot;, dijo el Dr. Whitney.<\/p>\n<p>\u201cIncluir RAF1 hizo que los niveles de Rubisco se duplicaran y, como resultado, obtuvimos tasas m\u00e1s r\u00e1pidas de fotos\u00edntesis y crecimiento de plantas en comparaci\u00f3n con las plantas donde no se introdujo RAF1.<\/p>\n<p>\u201cEl hallazgo tambi\u00e9n explica por qu\u00e9 nuestros intentos anteriores de insertar versiones m\u00e1s eficientes de Rubisco a partir de algunas algas en las hojas de las plantas han fracasado: requieren chaperones diferentes a los disponibles en las c\u00e9lulas de las hojas\u201d.<\/p>\n<\/div>\n<div class=\"social-share pull-left\"><\/div>\n<div class=\"article-tools pull-right\"><\/div>","protected":false},"excerpt":{"rendered":"<p>Cient\u00edficos australianos han encontrado una forma de mejorar la producci\u00f3n de la enzima Rubisco, esencial para el crecimiento de las plantas \/<\/p>","protected":false},"author":72,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[4,1846],"tags":[554],"class_list":["post-52838","post","type-post","status-publish","format-standard","hentry","category-agrochemicals","category-sustainability","tag-featured"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - 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