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La coordinación entre la microbiota y la endodermis de las raíces apoya la homeostasis de los nutrientes minerales de

Isai Salas-González^1,2, Guilhem Reyt^3,4, Paulina Flis^3,4

¹Curriculum in Bioinformatics and Computational Biology, Department of Biology, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.

Science (New York, N.Y.)

|November 20, 2020

Resumen

Las raíces de las plantas usan la endodermis para administrar el equilibrio de nutrientes y coordinarse con los microbios. La microbiota influye en la diferenciación endodérmica, afectando la homeostasis de los nutrientes de las plantas y la señalización del ácido abscísico.

Área de la Ciencia:

Biología vegetal
Microbiología
Homeostasis de los nutrientes

Sus antecedentes:

Las capas celulares especializadas en las raíces de las plantas y las tripas de los animales mantienen la homeostasis de nutrientes minerales mientras toleran la microbiota residente.
El papel de la endodermis de la raíz, crucial para el equilibrio de nutrientes minerales de las plantas, en la coordinación con la microbiota sigue sin estar claro.

Objetivo del estudio:

Investigar la coordinación entre la endodermis de la raíz de la planta y la microbiota.
Caracterizar los mecanismos reguladores de la diferenciación endodérmica influenciada por la microbiota.
Comprender el impacto de esta interacción en la homeostasis de los nutrientes de las plantas.

Principales métodos:

Utilizó la planta modelo Arabidopsis thaliana.
Funciones genéticas caracterizadas relacionadas con la diferenciación endodérmica.
Se evaluaron los efectos de la microbiota en el ensamblaje del microbioma vegetal y la homeostasis de los nutrientes.
Investigó el vínculo entre la regulación endodérmica, la microbiota y la señalización del ácido abscísico.

Principales resultados:

Los genes que controlan la función endodérmica en Arabidopsis thaliana influyen en el ensamblaje del microbioma de las plantas.
Se identificó un mecanismo regulador de diferenciación endodérmica impulsado por la microbiota, que afecta significativamente la homeostasis de los nutrientes.
Este mecanismo está asociado con la capacidad de la microbiota para suprimir las respuestas del ácido abscísico en la raíz.

Conclusiones:

La endodermis de la raíz de la planta actúa como un centro regulador.
La endodermis coordina el ensamblaje de la microbiota y los mecanismos homeostáticos.
Esta interacción es fundamental para mantener la salud de las plantas y el equilibrio de nutrientes.

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