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FERONIA regula la termomorfogénesis vegetal mediante translocación nuclear y modulación de la vía de las auxinas

Hongxia Zheng^1,2, Weiwei Ren^1,2, Di Wu¹

¹Development Center of Plant Germplasm Resources, College of Life Sciences, Shanghai Normal University, Shanghai, 200234, China.

Journal of integrative plant biology

|January 30, 2026

Resumen

Las plantas se adaptan al calentamiento mediante termomorfogénesis, un proceso regulado por FERONIA (FER). FER

Área de la Ciencia:

Biología vegetal
Fisiología molecular vegetal
Adaptación ambiental

Sus antecedentes:

El calentamiento global amenaza la supervivencia de las plantas al alterar la homeostasis del crecimiento.
Las plantas exhiben termomorfogénesis para adaptarse a las temperaturas elevadas.
La integración de la percepción de la temperatura con la señalización de auxinas es poco comprendida.

Objetivo del estudio:

Identificar los reguladores clave de la termomorfogénesis en Arabidopsis thaliana.
Elucidar el mecanismo por el cual las señales de temperatura se integran con la señalización de auxinas.
Comprender el papel de las cinasas receptoras en la adaptación ambiental de las plantas.

Principales métodos:

Identificación de FERONIA (FER) como regulador de la termomorfogénesis.
Análisis de la escisión proteolítica de FER y la translocación nuclear de su dominio citosólico (FER^CD).
Investigación de la fosforilación de IAA29 por FER^CD y su efecto sobre ARF19.
Análisis transcriptómico para identificar genes co-regulados.

Principales resultados:

FER es un regulador central de la termomorfogénesis en Arabidopsis.
Las temperaturas cálidas inducen la escisión proteolítica de FER, liberando FER^CD.
FER^CD se traslada al núcleo y fosforila IAA29, promoviendo la elongación del hipocótilo.
FER y ARF19 co-regulan genes termoinducibles implicados en la señalización de auxinas y la remodelación de la pared celular.

Conclusiones:

FER integra las señales térmicas a través de la activación proteolítica y la modulación dependiente de la fosforilación de la señalización de auxinas.
Este mecanismo establece un nuevo paradigma para la adaptación ambiental mediada por cinasas receptoras en plantas.
Los hallazgos revelan cómo las plantas adaptan el crecimiento a las temperaturas cálidas a través de la señalización de auxinas mediada por FER.

Palabras clave:

FERONIA IAA29 auxina elongación del hipocótilo translocación nuclear termomorfogénesis

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