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Article

Thermosensory reconfiguration of the auxin transcriptional pathway to drive root cell growth.

Nature communications - 27 Mar 2026

Borniego María Belén, Pereyra Matías Ezequiel, Sageman-Furnas Katelyn, Rossi Andrés Hugo, Wilkinson Edward G, Strader Lucia C, Casal Jorge J

Abstract excerpt

Elevated temperatures enhance plant root growth. We find that cell elongation significantly contributes to this response. While mutations in the auxin transcriptional pathway impair warmth-induced cell elongation, exogenous auxin inhibits this growth. Intriguingly, warmth increases auxin levels and the nuclear accumulation of TIR1/AFB2/AFB3, alongside Aux/IAA stabilisation. This apparent paradox is explained by...

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PMID: 41896211
DOI: 10.1038/s41467-026-71011-z
PMCID: PMC13031317

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