Palabras clave
desarrollo
señalización celular
hormonas
fosforilación.
Resumen
Las proteínas cinasas activadas por mitógenos (MAPKs) forman parte de módulos de señalización que integran respuestas extra e intra-celulares a través de la fosforilación de diferentes substratos. Dichos módulos influencian la actividad de factores de transcripción para regular la expresión genética y procesos fundamentales durante el desarrollo de las plantas. Si bien las primeras investigaciones en este campo estuvieron encaminadas a esclarecer la participación de las MAPKs en respuestas de defensa y agobio ambiental, en la actualidad se les ha involucrado en la germinación, la configuración de la arquitectura de la raíz, la formación de estomas, la floración y la senescencia. Particularmente, en la planta modelo Arabidopsis thaliana se han identificado y clasificado 90 MAPKs, lo que sugiere una fuerte redundancia funcional y plantea el reto de dilucidar el posible el papel que desempeña cada miembro de esta familia en los diferentes procesos de organogénesis. En este artículo se analizan las investigaciones enfocadas a esclarecer la participación de las MAPKs durante el desarrollo vegetal.
Citas
Referencias
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