DELLA-PIF Modules: Old Dogs Learn New Tricks

Trends Plant Sci. 2016 Oct;21(10):813-815. doi: 10.1016/j.tplants.2016.08.006. Epub 2016 Aug 26.

Abstract

DELLA proteins are central regulators in gibberellin (GA) signaling that interact with PHYTOCHROME-INTERACTING FACTORS (PIFs) and block their DNA-binding capacity, impairing their function in integrating light signals. A recent report demonstrates that DELLAs also negatively control PIF stability, thus providing a new layer of coordination of light and GA signaling.

Keywords: DELLA; PIFs; gibberellin; light; protein degradation.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Arabidopsis / metabolism
  • Arabidopsis / physiology
  • Arabidopsis Proteins / metabolism
  • Arabidopsis Proteins / physiology*
  • Basic Helix-Loop-Helix Transcription Factors / metabolism
  • Basic Helix-Loop-Helix Transcription Factors / physiology
  • Gibberellins / metabolism
  • Gibberellins / physiology
  • Light
  • Signal Transduction / physiology
  • Signal Transduction / radiation effects

Substances

  • Arabidopsis Proteins
  • Basic Helix-Loop-Helix Transcription Factors
  • GAI protein, Arabidopsis
  • Gibberellins
  • PIF5 protein, Arabidopsis