Interplay between auxin and abiotic stresses in maize
Date
2025-05-10
Authors
Gonzales, Clarice
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Oxford University Press on behalf of the Society for Experimental Biology
Abstract
Plants display a continuum of responses to abiotic stresses, including sensitivity and tolerance. Classical phytohormones have been implicated in these processes due to the observed changes in growth phenotypes following stress cues. This interplay is often described as the growth–stress trade-off. Recent studies have examined abiotic stress responses in maize and implicated auxin biosynthesis, transport, and signaling. However, very few auxin pathway genes have been functionally characterized for their role in stress responses in maize, leaving a large knowledge gap in the field. In this review we will describe our current understanding of relationships between auxin and a myriad of stresses, including temperature, drought, salinity, light, and heavy metals. Resilience to environmental stresses is critical for informing agricultural strategies to improve maize yield and quality. We conclude with a discussion of possible future directions and approaches that may increase our understanding of how auxin mediates growth–stress trade-offs in maize.
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This article is published as Clarice F Gonzales, Dior R Kelley, Interplay between auxin and abiotic stresses in maize, Journal of Experimental Botany, Volume 76, Issue 7, 10 May 2025, Pages 1879–1887, https://doi.org/10.1093/jxb/eraf079
Rights Statement
© The Author(s) 2025. This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs licence (https://creativecommons.org/licenses/by-nc-nd/4.0/), which permits non-commercial reproduction and distribution of the work, in any medium, provided the original work is not altered or transformed in any way, and that the work is properly cited.
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Funding
This work was supported by USDA NIFA AFRI award no. 2020-67013-30914 to DRK and HATCH project IOW05745 to DRK.