Título

Powering the plasma membrane Ca2+-ROS self-amplifying loop

Autor

IGOR POTTOSIN

ALBERTO ISAAC ZEPEDA JAZO

Nivel de Acceso

Acceso Abierto

Resumen o descripción

Reactive oxygen species (ROS) and intracellular Ca2+ signaling interact with and amplify each other: the major ROSproducing plasma membrane enzyme NADPH-oxidase (NOX) is activated by cytosolic Ca2+, and in turn ROS activate Ca2+ influx across the plasma membrane. For the latter, NOX-produced superoxide anions need to be converted to hydroxyl radicals. Makavitskaya et al. (2018) have now demonstrated that salt stress promotes ascorbate efflux, which, via reduction of the apoplastic copper and iron ions, assists in the generation of hydroxyl radicals, thus inducing a rise in intracellular Ca2+ in the roots.

Editor

Oxford University Press

Fecha de publicación

19 de junio de 2018

Tipo de publicación

Artículo

Idioma

Inglés

Repositorio Orígen

Repositorio institucional de la Universidad de Colima

Descargas

0

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