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Article

Collapsed auxin transport by iron inhibits primary root growth under low phosphate stress.

Journal of integrative plant biology - 1 Mar 2026

Zhang Jian-Feng, He Le, Ruan Zhao-Yang, Yan Jing-Yi, Lu Kai-Kai, Li Xue, Su Yan, Liu Wen-Cheng, Ren Feng

Abstract excerpt

The inhibited growth of primary roots (PRs) is a typical adaptive response of Arabidopsis to low phosphate (LP) stress. The role of auxin and its relationship with iron (Fe) in this process, however, remains unclear. In this study, we demonstrated that auxin acts as a positive regulator. A high concentration of auxin at the tips of PRs stimulates vigorous PR growth in both LP-arf7 arf19 and LP-yucca mutants. The...

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Biological Transport
Indoleacetic Acids
Iron
Phosphates
Plant Roots

Methodology Data sources Editorial policy Privacy About Contact Helena Bioinformatics

Plants, Genetically Modified

Reactive Oxygen Species

Stress, Physiological

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PMID: 41299189
DOI: 10.1111/jipb.70090

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 1 Sept 2026.

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