Rapid and reversible root growth inhibition by TIR1 auxin signalling

M. Fendrych, M. Akhmanova, J. Merrin, M. Glanc, S. Hagihara, K. Takahashi, N. Uchida, K.U. Torii, J. Friml, Nature Plants 4 (2018) 453–459.


Journal Article | Published | English
Author
; ; ; ; ; ; ; ;
Abstract
The phytohormone auxin is the information carrier in a plethora of developmental and physiological processes in plants(1). It has been firmly established that canonical, nuclear auxin signalling acts through regulation of gene transcription(2). Here, we combined microfluidics, live imaging, genetic engineering and computational modelling to reanalyse the classical case of root growth inhibition(3) by auxin. We show that Arabidopsis roots react to addition and removal of auxin by extremely rapid adaptation of growth rate. This process requires intracellular auxin perception but not transcriptional reprogramming. The formation of the canonical TIR1/AFB-Aux/IAA co-receptor complex is required for the growth regulation, hinting to a novel, non-transcriptional branch of this signalling pathway. Our results challenge the current understanding of root growth regulation by auxin and suggest another, presumably non-transcriptional, signalling output of the canonical auxin pathway.
Publishing Year
Date Published
2018-06-25
Journal Title
Nature Plants
Volume
4
Issue
7
Page
453 - 459
IST-REx-ID

Cite this

Fendrych M, Akhmanova M, Merrin J, et al. Rapid and reversible root growth inhibition by TIR1 auxin signalling. Nature Plants. 2018;4(7):453-459. doi:10.1038/s41477-018-0190-1
Fendrych, M., Akhmanova, M., Merrin, J., Glanc, M., Hagihara, S., Takahashi, K., … Friml, J. (2018). Rapid and reversible root growth inhibition by TIR1 auxin signalling. Nature Plants, 4(7), 453–459. https://doi.org/10.1038/s41477-018-0190-1
Fendrych, Matyas, Maria Akhmanova, Jack Merrin, Matous Glanc, Shinya Hagihara, Koji Takahashi, Naoyuki Uchida, Keiko U Torii, and Jirí Friml. “Rapid and Reversible Root Growth Inhibition by TIR1 Auxin Signalling.” Nature Plants 4, no. 7 (2018): 453–59. https://doi.org/10.1038/s41477-018-0190-1.
M. Fendrych et al., “Rapid and reversible root growth inhibition by TIR1 auxin signalling,” Nature Plants, vol. 4, no. 7, pp. 453–459, 2018.
Fendrych M, Akhmanova M, Merrin J, Glanc M, Hagihara S, Takahashi K, Uchida N, Torii KU, Friml J. 2018. Rapid and reversible root growth inhibition by TIR1 auxin signalling. Nature Plants. 4(7), 453–459.
Fendrych, Matyas, et al. “Rapid and Reversible Root Growth Inhibition by TIR1 Auxin Signalling.” Nature Plants, vol. 4, no. 7, Springer Nature, 2018, pp. 453–59, doi:10.1038/s41477-018-0190-1.

Link(s) to Main File(s)
Access Level
OA Open Access
External material:
Popular Science
Description
News on IST Homepage

Export

Marked Publications

Open Data IST Research Explorer

Sources

PMID: 29942048
PubMed | Europe PMC

Search this title in

Google Scholar