Photoperiodic control of the <i>Arabidopsis</i> proteome reveals a translational coincidence mechanism.

ABSTRACT: Plants respond to seasonal cues such as the photoperiod, to adapt to current conditions and to prepare for environmental changes in the season to come. To assess photoperiodic responses at the protein level, we quantified the proteome of the model plant Arabidopsis thaliana by mass spectrometry across four photoperiods. This revealed coordinated changes of abundance in proteins of photosynthesis, primary and secondary metabolism, including pigment biosynthesis, consistent with higher metabolic activity in long photoperiods. Higher translation rates in the day than the night likely contribute to these changes, via an interaction with rhythmic changes in RNA abundance. Photoperiodic control of protein levels might be greatest only if high translation rates coincide with high transcrip

SUBMITTER: Seaton DD 

PROVIDER: S-EPMC5830654 | biostudies-literature | 2018 Mar

REPOSITORIES: biostudies-literature