How Does pH Fit in with Oscillating Polar Growth?

Silvina Mangano, Javier Martínez Pacheco, Cristina Marino-Buslje, José M. Estevez

Resultado de la investigación: Contribución a una revistaArtículo de revisiónrevisión exhaustiva

18 Citas (Scopus)

Resumen

Polar growth in root hairs and pollen tubes is an excellent model for investigating plant cell size regulation. While linear plant growth is historically explained by the acid growth theory, which considers that auxin triggers apoplastic acidification by activating plasma membrane P-type H + -ATPases (AHAs) along with cell wall relaxation over long periods, the apoplastic pH ( apo pH) regulatory mechanisms are unknown for polar growth. Polar growth is a fast process mediated by rapid oscillations that repeat every ∼20–40 s. In this review, we explore a reactive oxygen species (ROS)-dependent mechanism that could generate oscillating apo pH gradients in a coordinated manner with growth and Ca 2+ oscillations. We propose possible mechanisms by which apo pH oscillations are coordinated with polar growth together with ROS and Ca 2+ waves.

Idioma originalInglés
Páginas (desde-hasta)479-489
Número de páginas11
PublicaciónTrends in Plant Science
Volumen23
N.º6
DOI
EstadoPublicada - jun 2018
Publicado de forma externa

Áreas temáticas de ASJC Scopus

  • Botánica

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