Uncovering How Auxin Optimizes Root Systems Architecture in Response to Environmental Stresses

Leftley, Nicola; Banda, Jason; Pandey, Bipin; Bennett, Malcolm; Vo�, Ute

Abstract

Since colonizing land, plants have developed mechanisms to tolerate a broad range of abiotic stresses that include flooding, drought, high salinity, and nutrient limitation. Roots play a key role acclimating plants to these as their developmental plasticity enables them to grow toward more favorable conditions and away from limiting or harmful stresses. The phytohormone auxin plays a key role translating these environmental signals into developmental outputs. This is achieved by modulating auxin levels and/or signaling, often through cross talk with other hormone signals like abscisic acid (ABA) or ethylene. In our review, we discuss how auxin controls root responses to water, osmotic and nutrient-related stresses, and describe how the synthesis, degradation, transport, and response of this key signaling hormone helps optimize root architecture to maximize resource acquisition while limiting the impact of abiotic stresses.

Citation

Leftley, N., Banda, J., Pandey, B., Bennett, M., & Voß, U. (2021). Uncovering How Auxin Optimizes Root Systems Architecture in Response to Environmental Stresses. Cold Spring Harbor Perspectives in Biology, 13(11), Article a040014. https://doi.org/10.1101/cshperspect.a040014

• Journal Article Type: Article
• Acceptance Date: Feb 12, 2021
• Online Publication Date: Apr 26, 2021
• Publication Date: 2021-11
• Deposit Date: Nov 9, 2021
• Journal: Cold Spring Harbor Perspectives in Biology
• Electronic ISSN: 1943-0264
• Publisher: Cold Spring Harbor Laboratory Press
• Peer Reviewed: Peer Reviewed
• Volume: 13
• Issue: 11
• Article Number: a040014
• DOI: https://doi.org/10.1101/cshperspect.a040014
• Keywords: General Biochemistry, Genetics and Molecular Biology
• Public URL: https://nottingham-repository.worktribe.com/output/6676721
• Publisher URL: https://cshperspectives.cshlp.org/content/13/11/a040014