Xiuzhen Kong
Root hairs facilitate rice root penetration into compacted layers
Kong, Xiuzhen; Yu, Suhang; Xiong, Yali; Song, Xiaoyun; Nevescanin-Moreno, Lucia; Wei, Xiaoqing; Rao, Jinliang; Zhou, Hu; Bennett, Malcolm J; Pandey, Bipin K; Huang, Guoqiang
Authors
Suhang Yu
Yali Xiong
Xiaoyun Song
Lucia Nevescanin-Moreno
Xiaoqing Wei
Jinliang Rao
Hu Zhou
Professor MALCOLM BENNETT malcolm.bennett@nottingham.ac.uk
PROFESSOR OF PLANT SCIENCE
Dr BIPIN PANDEY Bipin.Pandey@nottingham.ac.uk
Principal Research Fellow
Guoqiang Huang
Abstract
Compacted soil layers adversely affect rooting depth and access to deeper nutrient and water resources, thereby impacting climate resilience of crop production and global food security. Root hair plays well-known roles in facilitating water and nutrient acquisition. Here, we report that root hair also contributes to root penetration into compacted layers. We demonstrate that longer root hair, induced by elevated auxin response during a root compaction response, improves the ability of rice roots to penetrate harder layers. This compaction-induced auxin response in the root hair zone is dependent on the root apex-expressed auxin synthesis gene OsYUCCA8 (OsYUC8), which is induced by compaction stress. This auxin source for root hair elongation relies on the auxin influx carrier AUXIN RESISTANT 1 (OsAUX1), mobilizing this signal from the root apex to the root hair zone. Mutants disrupting OsYUC8 and OsAUX1 genes exhibit shorter root hairs and weaker penetration ability into harder layers compared with wild type (WT). Root-hair-specific mutants phenocopy these auxin-signaling mutants, as they also exhibit an attenuated root penetration ability. We conclude that compaction stress upregulates OsYUC8-mediated auxin biosynthesis in the root apex, which is subsequently mobilized to the root hair zone by OsAUX1, where auxin promotes root hair elongation, improving anchorage of root tips to their surrounding soil environment and aiding their penetration ability into harder layers.
Citation
Kong, X., Yu, S., Xiong, Y., Song, X., Nevescanin-Moreno, L., Wei, X., Rao, J., Zhou, H., Bennett, M. J., Pandey, B. K., & Huang, G. (2024). Root hairs facilitate rice root penetration into compacted layers. Current Biology, 34(10), 2039-2048. https://doi.org/10.1016/j.cub.2024.03.064
Journal Article Type | Article |
---|---|
Acceptance Date | Mar 28, 2024 |
Online Publication Date | Apr 22, 2024 |
Publication Date | May 20, 2024 |
Deposit Date | Apr 26, 2024 |
Publicly Available Date | Apr 23, 2025 |
Journal | Current Biology |
Print ISSN | 0960-9822 |
Electronic ISSN | 1879-0445 |
Publisher | Cell Press |
Peer Reviewed | Peer Reviewed |
Volume | 34 |
Issue | 10 |
Pages | 2039-2048 |
DOI | https://doi.org/10.1016/j.cub.2024.03.064 |
Keywords | compacted layer, root hair, anchorage, auxin, root penetration |
Public URL | https://nottingham-repository.worktribe.com/output/34110516 |
Publisher URL | https://www.cell.com/current-biology/abstract/S0960-9822(24)00404-4?_returnURL=https%3A%2F%2Flinkinghub.elsevier.com%2Fretrieve%2Fpii%2FS0960982224004044%3Fshowall%3Dtrue |
Files
This file is under embargo until Apr 23, 2025 due to copyright restrictions.
You might also like
Root plasticity vs. elasticity – When are responses acclimative?
(2024)
Journal Article
Glutaredoxin regulation of primary root growth confers early drought stress tolerance in pearl millet
(2023)
Preprint / Working Paper
Downloadable Citations
About Repository@Nottingham
Administrator e-mail: discovery-access-systems@nottingham.ac.uk
This application uses the following open-source libraries:
SheetJS Community Edition
Apache License Version 2.0 (http://www.apache.org/licenses/)
PDF.js
Apache License Version 2.0 (http://www.apache.org/licenses/)
Font Awesome
SIL OFL 1.1 (http://scripts.sil.org/OFL)
MIT License (http://opensource.org/licenses/mit-license.html)
CC BY 3.0 ( http://creativecommons.org/licenses/by/3.0/)
Powered by Worktribe © 2025
Advanced Search