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Auxin Biosynthesis is Required for Root Thermomorphogenesis

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Abstract

The role of auxin in plant root thermomorphogenesis is still under debate. Here, we showed that auxin is necessary for root elongation in either seedling roots or detached roots. Our study clarified the uncertainty in the field and shed new light on future research in plant response to high ambient temperature.

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Fig. 1
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Data Availability

The author responsible for distribution of materials integral to the findings presented in this article in accordance with the policy described in the Instructions for Authors is: Ziqiang Zhu (zqzhu@njnu.edu.cn).

Abbreviations

PIF4:

PHYTOCHROME INTERACTING FACTOR 4

GUS:

β-Glucuronidase

Kyn:

L-Kynurenine

PPBo:

4-Phenoxyphenylboronic acid

HY5:

ELONGATED HYPOCOTYL 5

SAUR40:

SMALL AUXIN UP-REGULATED RNA 40

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Acknowledgements

We thank Dr. Lin Xu for DR5:GUS seeds, Dr. Teva Vernoux for DII-VENUS seeds and Dr. Dongqing Xu for hy5-215 seeds.

Funding

This study was supported by the Priority Academic Program Development of Jiangsu Higher Education Institutions.

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Author notes

  1. Wei Liu and Yuyan Cheng have equally contributed to this work.

Authors and Affiliations

  1. College of Life Sciences, Nan**g Normal University, Nan**g, 210023, China

    Wei Liu, Yuyan Cheng & Ziqiang Zhu

Authors
  1. Wei Liu
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  2. Yuyan Cheng
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  3. Ziqiang Zhu
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Contributions

W.L. and Y.C. contributed to data curation and investigation. Z.Z. contributed to conceptualization, investigation, supervision, funding acquisition, writing and project administration.

Corresponding author

Correspondence to Ziqiang Zhu.

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No competing interests declared.

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Liu, W., Cheng, Y. & Zhu, Z. Auxin Biosynthesis is Required for Root Thermomorphogenesis. J Plant Growth Regul (2024). https://doi.org/10.1007/s00344-024-11305-y

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