Recent insights into metabolic and signalling events of directional root growth regulation and its implications for sustainable crop production systems

Katarzyna Retzer (Corresponding author), Wolfram Weckwerth (Corresponding author)

Publications: Contribution to journalReviewPeer Reviewed

Abstract

Roots are sensors evolved to simultaneously respond to manifold signals, which allow the plant to survive. Root growth responses, including the modulation of directional root growth, were shown to be differently regulated when the root is exposed to a combination of exogenous stimuli compared to an individual stress trigger. Several studies pointed especially to the impact of the negative phototropic response of roots, which interferes with the adaptation of directional root growth upon additional gravitropic, halotropic or mechanical triggers. This review will provide a general overview of known cellular, molecular and signalling mechanisms involved in directional root growth regulation upon exogenous stimuli. Furthermore, we summarise recent experimental approaches to dissect which root growth responses are regulated upon which individual trigger. Finally, we provide a general overview of how to implement the knowledge gained to improve plant breeding.

Original languageEnglish
Article number1154088
JournalFrontiers in Plant Science
Volume14
DOIs
Publication statusPublished - 16 Mar 2023

Austrian Fields of Science 2012

  • 106044 Systems biology
  • 106031 Plant physiology
  • 405001 Agroecology
  • 401113 Plant breeding

Keywords

  • ABA
  • auxin
  • green systems biology
  • metabolomics
  • panomics
  • SnRK1
  • SnRK2
  • TOR

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