Protein Phosphorylation Orchestrates Acclimations of Arabidopsis Plants to Environmental pH.

ABSTRACT: Environment pH (pH_e) is a key parameter dictating a surfeit of conditions critical to plant survival and fitness. To elucidate the mechanisms that recalibrate cytoplasmic and apoplastic pH homeostasis, we conducted a comprehensive proteomic/phosphoproteomic inventory of plants subjected to transient exposure to acidic or alkaline pH, an approach that covered the majority of protein-coding genes of the reference plant Arabidopsis thaliana. Our survey revealed a large set-of so far undocumented pH_e-dependent phospho-sites, indicative of extensive post-translational regulation of proteins involved in the acclimation to pH_e. Changes in pH_e altered both electrogenic H⁺ pumping via P-type ATPases and H⁺/anion co-transport processe

SUBMITTER: Jain D 

PROVIDER: S-EPMC10837763 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature