Learning To Breathe: Developmental Phase Transitions in Oxygen Status

Trends Plant Sci. 2017 Feb;22(2):140-153. doi: 10.1016/j.tplants.2016.11.013. Epub 2016 Dec 13.

Abstract

Plants are developmentally disposed to significant changes in oxygen availability, but our understanding of the importance of hypoxia is almost entirely limited to stress biology. Differential patterns of the abundance of oxygen, nitric oxide (NO), and reactive oxygen species (ROS), as well as of redox potential, occur in organs and meristems, and examples are emerging in the literature of mechanistic relationships of these to development. We describe here the convergence of these cues in meristematic and reproductive tissues, and discuss the evidence for regulated hypoxic niches within which oxygen-, ROS-, NO-, and redox-dependent signalling curate developmental transitions in plants.

Keywords: N-end rule proteolysis; ROS/RNS; development; differentiation; oxygen tension; redox.

Publication types

  • Review
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Cell Differentiation
  • Oxidation-Reduction
  • Oxygen / metabolism*
  • Plants / genetics
  • Plants / metabolism*
  • Reactive Oxygen Species / metabolism
  • Signal Transduction / genetics
  • Signal Transduction / physiology

Substances

  • Reactive Oxygen Species
  • Oxygen