Phosphoproteome dynamics upon changes in plant water status reveal early events associated with rapid growth adjustment in maize leaves.

ABSTRACT: Plant growth adjustment during water deficit is a crucial adaptive response. The rapid fine-tuned control achieved at the post-translational level is believed to be of considerable importance for regulating early changes in plant growth reprogramming. Aiming at a better understanding of early responses to contrasting plant water statuses, we carried out a survey of the protein phosphorylation events in the growing zone of maize leaves upon a range of water regimes. In this study, the impact of mild and severe water deficits were evaluated in comparison with constant optimal watering and with recovery periods lasting 5, 10, 20, 30, 45, and 60 min. Using four biological replicates per treatment and a robust quantitative phosphoproteomic methodology based on stable-isotope labeling, we identi

SUBMITTER: Bonhomme L 

PROVIDER: S-EPMC3494150 | biostudies-literature | 2012 Oct

REPOSITORIES: biostudies-literature