Root branching toward water involves posttranslational modification of transcription factor ARF7.
- Orosa-Puente B Department of Biosciences, University of Durham, Durham DH1 3LE, UK.
- Leftley N Plant and Crop Sciences, School of Biosciences, University of Nottingham, Sutton Bonington LE12 5RD, UK.
- von Wangenheim D Plant and Crop Sciences, School of Biosciences, University of Nottingham, Sutton Bonington LE12 5RD, UK.
- Banda J Plant and Crop Sciences, School of Biosciences, University of Nottingham, Sutton Bonington LE12 5RD, UK.
- Srivastava AK Department of Biosciences, University of Durham, Durham DH1 3LE, UK.
- Hill K Plant and Crop Sciences, School of Biosciences, University of Nottingham, Sutton Bonington LE12 5RD, UK.
- Truskina J Plant and Crop Sciences, School of Biosciences, University of Nottingham, Sutton Bonington LE12 5RD, UK.
- Bhosale R Plant and Crop Sciences, School of Biosciences, University of Nottingham, Sutton Bonington LE12 5RD, UK.
- Morris E Plant and Crop Sciences, School of Biosciences, University of Nottingham, Sutton Bonington LE12 5RD, UK.
- Srivastava M Department of Biosciences, University of Durham, Durham DH1 3LE, UK.
- Kümpers B Plant and Crop Sciences, School of Biosciences, University of Nottingham, Sutton Bonington LE12 5RD, UK.
- Goh T Plant and Crop Sciences, School of Biosciences, University of Nottingham, Sutton Bonington LE12 5RD, UK.
- Fukaki H Department of Biology, Graduate School of Science, Kobe University, Kobe 657-8501, Japan.
- Vermeer JEM Department of Plant and Microbial Biology, University of Zurich, CH-8008 Zurich, Switzerland.
- Vernoux T Laboratoire Reproduction et Développement des Plantes, Univ Lyon, ENS de Lyon, F-69342, Lyon, France.
- Dinneny JR Department of Biology, Stanford University, Stanford, CA 94305, USA.
- French AP Plant and Crop Sciences, School of Biosciences, University of Nottingham, Sutton Bonington LE12 5RD, UK.
- Bishopp A Plant and Crop Sciences, School of Biosciences, University of Nottingham, Sutton Bonington LE12 5RD, UK.
- Sadanandom A Department of Biosciences, University of Durham, Durham DH1 3LE, UK. ari.sadanandom@durham.ac.uk malcolm.bennett@nottingham.ac.uk.
- Bennett MJ Plant and Crop Sciences, School of Biosciences, University of Nottingham, Sutton Bonington LE12 5RD, UK. ari.sadanandom@durham.ac.uk malcolm.bennett@nottingham.ac.uk.
- 2018-12-22
Published in:
- Science (New York, N.Y.). - 2018
Arabidopsis
Arabidopsis Proteins
DNA, Plant
Gene Expression Regulation, Plant
Indoleacetic Acids
Nuclear Proteins
Plant Roots
Protein Binding
SUMO-1 Protein
Sumoylation
Transcription Factors
Water
English
Plants adapt to heterogeneous soil conditions by altering their root architecture. For example, roots branch when in contact with water by using the hydropatterning response. We report that hydropatterning is dependent on auxin response factor ARF7. This transcription factor induces asymmetric expression of its target gene LBD16 in lateral root founder cells. This differential expression pattern is regulated by posttranslational modification of ARF7 with the small ubiquitin-like modifier (SUMO) protein. SUMOylation negatively regulates ARF7 DNA binding activity. ARF7 SUMOylation is required to recruit the Aux/IAA (indole-3-acetic acid) repressor protein IAA3. Blocking ARF7 SUMOylation disrupts IAA3 recruitment and hydropatterning. We conclude that SUMO-dependent regulation of auxin response controls root branching pattern in response to water availability.
- Language
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- English
- Open access status
- bronze
- Identifiers
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- DOI 10.1126/science.aau3956
- PMID 30573626
- Persistent URL
- https://folia.unifr.ch/global/documents/258672
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