{"id":192155,"date":"2025-12-30T11:28:09","date_gmt":"2025-12-30T10:28:09","guid":{"rendered":"https:\/\/helloproject.es\/vigilancia\/la-falta-de-alimento-acelera-la-metamorfosis-en-las-abejas\/"},"modified":"2025-12-30T11:28:09","modified_gmt":"2025-12-30T10:28:09","slug":"la-falta-de-alimento-acelera-la-metamorfosis-en-las-abejas","status":"publish","type":"post","link":"https:\/\/helloproject.es\/vigilancia\/la-falta-de-alimento-acelera-la-metamorfosis-en-las-abejas\/","title":{"rendered":"La falta de alimento acelera la metamorfosis en las abejas"},"content":{"rendered":"

Un estudio recogido este lunes en la revista Proceedings de la Academia Nacional de Ciencias de Estados Unidos analiza c\u00f3mo la falta de alimento determina el momento en el que una abeja inicia su metamorf\u00f3sis, lo que va a influir en el tama\u00f1o corporal que tenga de adulta, su estado f\u00edsico, capacidad de vuelo y fecundidad.<\/p>\n

La regulaci\u00f3n de la metamorfosis se ha estudiado a fondo en los insectos porque es fundamental para saber cual va a ser el futuro de las especies, pero hasta ahora hab\u00eda resultado complicado determinar qu\u00e9 cambio fisiol\u00f3gico activa la metamorfosis.<\/p>\n

Este estudio ha determinado que un cambio cr\u00edtico de peso en la especie es fundamental para activar ese proceso hacia la madurez.<\/p>\n

Este estudio ha determinado que un cambio cr\u00edtico de peso en la especie es fundamental para activar ese proceso hacia la madurez<\/p>\n

Para ello, los investigadores de la Universidad estatal de Washington (Estados Unidos) hicieron unos experimentos en laboratorio con larvas de la abeja Megachile rotundata, una especie europea introducida en otras regiones del mundo hoy d\u00eda, que se caracteriza por ser cortadora de hojas de alfalfa.<\/p>\n

Su objetivo era determinar qu\u00e9 se\u00f1al activaba la metamorfosis en Megachile rotundata y caracterizar los mecanismos fisiol\u00f3gicos que iniciaba esta se\u00f1al.<\/p>\n

Para ello, alimentaron a parte de las larvas y a otras dejaron de proveerles comida para ver qu\u00e9 pasaba.<\/p>\n

Los investigadores midieron el inicio de la metamorfosis en unas y otras, as\u00ed como los niveles de hormona juvenil y las transcripciones gen\u00e9ticas asociadas a ese proceso.<\/p>\n

<\/a><\/p>\n

Consecuencias del ayuno<\/h2>\n

De este modo, descubrieron que el ayuno por la retirada de alimento desencadenaba un inicio m\u00e1s r\u00e1pido de la metamorfosis en esta especie.<\/p>\n

Al no recibir comida, las larvas disminu\u00edan los niveles de hormona juvenil y aumentaban los niveles de transcripciones relacionadas con las se\u00f1ales de metamorfosis hacia la transformaci\u00f3n de larva a pupa (y luego a adulta).<\/p>\n

La ausencia de alimento es una se\u00f1al ecol\u00f3gicamente relevante para las\u00a0larvas de estas abejas\u00a0en entornos naturales<\/p>\n

La ausencia de alimento es una se\u00f1al ecol\u00f3gicamente relevante para las\u00a0larvas de estas abejas en entornos naturales, ya que dependen de la comida que les proporciona la madre, porque son incapaces de buscar comida por s\u00ed mismas.<\/p>\n

Seg\u00fan los autores, los hallazgos ampl\u00edan la comprensi\u00f3n existente de la relaci\u00f3n entre la metamorfosis y el ciclo vital de las abejas.<\/p>","protected":false},"excerpt":{"rendered":"

Un estudio recogido este lunes en la revista Proceedings de la Academia Nacional de Ciencias de Estados Unidos analiza c\u00f3mo la falta de alimento determina el momento en el que una abeja inicia su metamorf\u00f3sis, lo que va a influir en el tama\u00f1o corporal que tenga de adulta, su estado f\u00edsico, capacidad de vuelo y […]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","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":"","ast-disable-related-posts":"","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 center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[5],"tags":[],"class_list":["post-192155","post","type-post","status-publish","format-standard","hentry","category-noticias"],"yoast_head":"\nLa falta de alimento acelera la metamorfosis en las abejas - 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