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Journal articles
Short-Root regulates primary, lateral, and adventitious root development in Arabidopsis.
Mikaël Lucas
1
Ranjan Swarup
Ivan A Paponov
Kamal Swarup
Ilda Casimiro
2
David Lake
Benjamin Peret
1
Susan Zappala
Stefan Mairhofer
Morag Whitworth
Jiehua Wang
Karin Ljung
3
Alan Marchant
Goran Sandberg
Michael J Holdsworth
Klaus Palme
Tony Pridmore
1
Sacha Mooney
1
Malcolm J Bennett
1
Ilda Casimiro 2
Author
David Lake
Author
Benjamin Peret 1
Author IdHAL : benjamin-peret ORCID : https://orcid.org/0000-0003-1336-0796
Susan Zappala
Author
1
CPIB - Centre for Plant Integrative Biology [Nothingham] (Loughborough LE12 5RD - United Kingdom)
- UON - University of Nottingham, UK (University of Nottingham University Park Nottingham NG7 2RD - United Kingdom)
2
UEX - Universidad de Extremadura (Badajoz
Cáceres
Mérida
Plasencia - Spain)
3
UPSC - Umea Plant Science Center (Sweden)
- Department of Forest Genetics and Plant Physiology (Sweden)
- SLU - Swedish University of Agricultural Sciences (S-750 07 Uppsala - Sweden)
Abstract : Short-Root (SHR) is a well-characterized regulator of radial patterning and indeterminacy of the Arabidopsis (Arabidopsis thaliana) primary root. However, its role during the elaboration of root system architecture remains unclear. We report that the indeterminate wild-type Arabidopsis root system was transformed into a determinate root system in the shr mutant when growing in soil or agar. The root growth behavior of the shr mutant results from its primary root apical meristem failing to initiate cell division following germination. The inability of shr to reactivate mitotic activity in the root apical meristem is associated with the progressive reduction in the abundance of auxin efflux carriers, PIN-FORMED1 (PIN1), PIN2, PIN3, PIN4, and PIN7. The loss of primary root growth in shr is compensated by the activation of anchor root primordia, whose tissues are radially patterned like the wild type. However, SHR function is not restricted to the primary root but is also required for the initiation and patterning of lateral root primordia. In addition, SHR is necessary to maintain the indeterminate growth of lateral and anchor roots. We conclude that SHR regulates a wide array of Arabidopsis root-related developmental processes.
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https://hal-cea.archives-ouvertes.fr/cea-00848574
Contributor : Benjamin Peret <>
Submitted on : Friday, July 26, 2013 - 2:45:48 PM
Last modification on : Thursday, November 12, 2020 - 3:52:03 PM
Contributor : Benjamin Peret <>
Submitted on : Friday, July 26, 2013 - 2:45:48 PM
Last modification on : Thursday, November 12, 2020 - 3:52:03 PM
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- HAL Id : cea-00848574, version 1
- DOI : 10.1104/pp.110.165126
- PUBMED : 21030506
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Mikaël Lucas, Ranjan Swarup, Ivan A Paponov, Kamal Swarup, Ilda Casimiro, et al.. Short-Root regulates primary, lateral, and adventitious root development in Arabidopsis.. Plant Physiology, American Society of Plant Biologists, 2011, 155 (1), pp.384-98. ⟨10.1104/pp.110.165126⟩. ⟨cea-00848574⟩
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