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

Author(s)
Katarzyna Retzer, Wolfram Weckwerth
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.

Organisation(s)
Functional and Evolutionary Ecology, Research Platform Vienna Metabolomics Center
External organisation(s)
Czech Academy of Sciences
Journal
Frontiers in Plant Science
Volume
14
ISSN
1664-462X
DOI
https://doi.org/10.3389/fpls.2023.1154088
Publication date
03-2023
Peer reviewed
Yes
Austrian Fields of Science 2012
106044 Systems biology, 106031 Plant physiology, 405001 Agroecology, 401113 Plant breeding
Keywords
ASJC Scopus subject areas
Plant Science
Sustainable Development Goals
SDG 12 - Responsible Consumption and Production
Portal url
https://ucris.univie.ac.at/portal/en/publications/recent-insights-into-metabolic-and-signalling-events-of-directional-root-growth-regulation-and-its-implications-for-sustainable-crop-production-systems(60615f3c-847f-4f9d-888f-3bbfd8d197a1).html