{"id":365855,"date":"2026-08-06T22:29:25","date_gmt":"2026-08-06T22:29:25","guid":{"rendered":"http:\/\/6a74e795697d7b2af2d88315"},"modified":"2026-08-06T22:29:25","modified_gmt":"2026-08-06T22:29:25","slug":"crean-lechugas-capaces-de-generar-mioglobina-una-proteina-esencial-de-la-carne","status":"publish","type":"post","link":"https:\/\/sarmiento24h.com\/?p=365855","title":{"rendered":"Crean lechugas capaces de generar mioglobina, una prote\u00edna esencial de la carne"},"content":{"rendered":"<p>En el futuro, las lechugas podr\u00edan convertirse en f\u00e1bricas de mioglobina, una prote\u00edna considerada una fuente importante de hierro hemo y responsable del color rojo y del sabor caracter\u00edstico de la carne. As\u00ed lo plantea un nuevo estudio que demostr\u00f3, como prueba de concepto, que estas hortalizas modificadas gen\u00e9ticamente podr\u00edan transformarse en una alternativa para favorecer dietas m\u00e1s amigables con el medio ambiente y con un aporte nutricional similar.<\/p>\n<p>La producci\u00f3n de carne de origen animal representa uno de los principales desaf\u00edos ambientales de la actualidad. Se trata de una actividad que requiere grandes extensiones de tierra, consume cantidades elevadas de agua y genera importantes emisiones de gases de efecto invernadero, entre ellos <a href=\"https:\/\/es.wired.com\/articulos\/sistema-alimentario-contribuye-al-cambio-climatico-pero-no-tiene-por-que-ser-asi\">metano y \u00f3xido nitroso<\/a>.<\/p>\n<p>Especialistas y defensores del medio ambiente sostienen que reducir el consumo de carne en la alimentaci\u00f3n diaria es, probablemente, una de las medidas m\u00e1s efectivas que las personas pueden adoptar para contribuir a mitigar la crisis clim\u00e1tica. La creciente aceptaci\u00f3n de esta recomendaci\u00f3n ha impulsado un <strong>mercado de alternativas a la carne valorado en hasta 8,100 millones de euros anuales<\/strong>, con una tasa de crecimiento estimada de entre 8.1 y 12.3% por a\u00f1o durante la pr\u00f3xima d\u00e9cada.<\/p>\n<hr>\n<div class=\"ContentCardEmbedWrapper-hkvhYu kMYDit content-card-embed content-card-embed--stacked\" data-testid=\"ContentCardEmbedWrapper\" readability=\"26.88\">\n<div class=\"ContentCardEmbedImage-bqahne fjmzkP content-card-embed__image\" data-testid=\"ContentCardEmbedImage\"><span class=\"SpanWrapper-kFnjvc eKnjjD responsive-asset\"><picture class=\"ResponsiveImagePicture-jKunQM gjCCFj responsive-image\"><img decoding=\"async\" alt=\"Hamburguesa de carne vegetal\" loading=\"lazy\" class=\"ResponsiveImageContainer-dkeESL cQPiWi responsive-image__image\" srcset=\"https:\/\/media.es.wired.com\/photos\/6682e4a9eff311f94b146d91\/master\/w_120,c_limit\/Veggie%20Burger%20GettyImages%20166543019%20(1).jpg 120w, https:\/\/media.es.wired.com\/photos\/6682e4a9eff311f94b146d91\/master\/w_240,c_limit\/Veggie%20Burger%20GettyImages%20166543019%20(1).jpg 240w, https:\/\/media.es.wired.com\/photos\/6682e4a9eff311f94b146d91\/master\/w_320,c_limit\/Veggie%20Burger%20GettyImages%20166543019%20(1).jpg 320w, https:\/\/media.es.wired.com\/photos\/6682e4a9eff311f94b146d91\/master\/w_640,c_limit\/Veggie%20Burger%20GettyImages%20166543019%20(1).jpg 640w, https:\/\/media.es.wired.com\/photos\/6682e4a9eff311f94b146d91\/master\/w_768,c_limit\/Veggie%20Burger%20GettyImages%20166543019%20(1).jpg 768w\" sizes=\"100vw\" src=\"https:\/\/media.es.wired.com\/photos\/6682e4a9eff311f94b146d91\/master\/w_775%2Cc_limit\/Veggie%2520Burger%2520GettyImages%2520166543019%2520(1).jpg\"><\/picture><\/span><\/div>\n<div class=\"ContentCardEmbedInfo-buyHWH gWLOee\" readability=\"29.323636363636\">\n<div class=\"BaseText-fEwdHD ContentCardEmbedHed-kDKGDs iUENtL dlHXUJ content-card-embed__hed\" data-testid=\"ContentCardEmbedHed\"><a class=\"BaseLink-haTOKm ContentCardEmbedHedLink-iBZsco ILkR hhUFQU content-card-embed__hed-link link\" href=\"https:\/\/es.wired.com\/articulos\/por-que-no-debemos-excedernos-con-carne-vegetal\" data-testid=\"ContentCardEmbedHedLink\">Por qu\u00e9 no debemos excedernos con la carne vegetal<\/a><\/div>\n<p>Algunos factores, principalmente relacionados con el perfil nutricional, sugieren que la alternativa animal ser\u00eda m\u00e1s saludable. Pero depende mucho del producto y de cualquier manera el consumo debe seguir siendo limitado.<\/p>\n<\/div>\n<\/div>\n<hr>\n<p>El creciente inter\u00e9s por estos productos ha obligado a empresas y centros de investigaci\u00f3n a optimizar los procesos de producci\u00f3n de prote\u00ednas alternativas. Hasta ahora, la estrategia m\u00e1s utilizada consiste en modificar bacterias o levaduras para que sinteticen prote\u00ednas animales en biorreactores. Sin embargo, ampliar este m\u00e9todo a escala comercial implica costos elevados debido a la necesidad de infraestructura especializada, un alto consumo energ\u00e9tico y procesos industriales complejos.<\/p>\n<p>En este contexto, una nueva investigaci\u00f3n realizada por cient\u00edficos del Imperial College London propone que la modificaci\u00f3n gen\u00e9tica de ciertas plantas, como la lechuga, podr\u00eda ofrecer una alternativa m\u00e1s sustentable para <a href=\"https:\/\/es.wired.com\/articulos\/esta-nueva-clase-de-arroz-hibrido-con-proteina-de-carne-trae-esperanza-a-la-alimentacion-mundial\">producir prote\u00ednas animales<\/a>.<\/p>\n<p>El equipo llev\u00f3 a cabo una serie de experimentos con plantas de tabaco y lechuga. En una primera etapa, los investigadores aislaron y clonaron en laboratorio los genes responsables de producir mioglobina en cerdos y bovinos. Posteriormente, este material gen\u00e9tico fue introducido en los cloroplastos de las plantas con una t\u00e9cnica conocida como bombardeo biobal\u00edstico, que consiste en proyectar diminutas part\u00edculas recubiertas con ADN hacia las c\u00e9lulas vegetales.<\/p>\n<p>Como referencia para comparar la eficiencia del procedimiento, los investigadores tambi\u00e9n incorporaron el mismo gen al genoma nuclear de las plantas, as\u00ed como al cloroplasto del alga unicelular <em>Chlamydomonas reinhardtii<\/em>.<\/p>\n<p>Tras confirmar la correcta integraci\u00f3n del gen en los cloroplastos, los autores cultivaron las plantas hasta alcanzar la madurez, etapa en la que florecieron y produjeron semillas. La siguiente generaci\u00f3n hered\u00f3 el gen introducido, lo que demostr\u00f3 que tanto las plantas de tabaco como las de lechuga no experimentaron alteraciones significativas en su desarrollo, incluida la fotos\u00edntesis. Los resultados tambi\u00e9n confirmaron que <strong>la modificaci\u00f3n gen\u00e9tica era estable y pod\u00eda transmitirse a la descendencia.<\/strong><\/p>\n<h2>\u00bfEstas lechugas podr\u00edan sustituir a la carne?<\/h2>\n<p>El siguiente paso consisti\u00f3 en determinar la cantidad de mioglobina que las plantas eran capaces de producir. Para ello, como se describe en el art\u00edculo <a data-offer-url=\"https:\/\/www.frontiersin.org\/journals\/plant-science\/articles\/10.3389\/fpls.2026.1876707\/full\" class=\"external-link\" data-event-click=\"{&quot;element&quot;:&quot;ExternalLink&quot;,&quot;outgoingURL&quot;:&quot;https:\/\/www.frontiersin.org\/journals\/plant-science\/articles\/10.3389\/fpls.2026.1876707\/full&quot;}\" href=\"https:\/\/www.frontiersin.org\/journals\/plant-science\/articles\/10.3389\/fpls.2026.1876707\/full\" rel=\"nofollow noopener\" target=\"_blank\">publicado<\/a> en la revista <em>Frontiers in Plant Science<\/em>, los investigadores utilizaron una t\u00e9cnica anal\u00edtica de alta precisi\u00f3n conocida como cromatograf\u00eda l\u00edquida acoplada a espectrometr\u00eda de masas.<\/p>\n<p>Los resultados mostraron que <strong>las plantas de tabaco y lechuga modificadas produjeron alrededor de 0.81 miligramos de mioglobina por gramo de peso seco.<\/strong> Esta cantidad fue al menos tres veces superior a la obtenida cuando el gen se incorpor\u00f3 al genoma nuclear.<\/p>\n<p>Alexia Groff, investigadora del Imperial College London y coautora del estudio, <a href=\"https:\/\/www.eurekalert.org\/news-releases\/1137973\">explica<\/a> que \u201cdebido a su origen bacteriano y a la gran cantidad de copias por c\u00e9lula, los cloroplastos suelen ser mucho m\u00e1s eficientes que el n\u00facleo celular en la producci\u00f3n de grandes cantidades de prote\u00edna\u201d.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>En el futuro, las lechugas podr\u00edan convertirse&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":365856,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[46],"tags":[],"class_list":["post-365855","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tecnologia"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.1 - 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