Reactive Oxygen Species Link Gene Regulatory Networks During Arabidopsis Root Development

We describe and discuss the role of reactive oxygen species signaling in root development, with a particular focus on transcriptional regulation

Kosuke Mase; Hironaka Tsukagoshi

2021

Scholarcy highlights

  • Oxygen is a stable molecule that is required for the survival of aerobic organisms on Earth
  • Many studies have indicated that reactive oxygen species are generated by NADPH oxidases localized on the plasma membrane
  • For signal transduction with gene expression regulation, ROS generated by NADPH oxidase should be transported into cells
  • H2O2 is known to be transported from the apoplast to the cytosol via aquaporins, H2O2 sensors on the plasma membrane were not identified for a long time
  • Whether hydrogen peroxide-induced Ca2+ 1 is a H2O2 signal receptor for root development is not known, HPCA1 can be used to explore how H2O2 signals are transduced from the outside of cells
  • Identification of such a sensor or receptors would lead to the elucidation of the ROS regulatory gene expression network; the function of some transcription factors in yeast and bacteria has been shown to be modulated in the presence of H2O2 to modulate their function
  • Secondary molecules that connect reactive oxygen species and hormone signals are important, for example, reactive carbonyl species in auxin, flavonols in cytokinin, and calcium ions in root hair development and ROS wave

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