---
_id: '7948'
abstract:
- lang: eng
  text: In agricultural systems, nitrate is the main source of nitrogen available
    for plants. Besides its role as a nutrient, nitrate has been shown to act as a
    signal molecule for plant growth, development and stress responses. In Arabidopsis,
    the NRT1.1 nitrate transceptor represses lateral root (LR) development at low
    nitrate availability by promoting auxin basipetal transport out of the LR primordia
    (LRPs). In addition, our present study shows that NRT1.1 acts as a negative regulator
    of the TAR2 auxin biosynthetic gene expression in the root stele. This is expected
    to repress local auxin biosynthesis and thus to reduce acropetal auxin supply
    to the LRPs. Moreover, NRT1.1 also negatively affects expression of the LAX3 auxin
    influx carrier, thus preventing cell wall remodeling required for overlying tissues
    separation during LRP emergence. Both NRT1.1-mediated repression of TAR2 and LAX3
    are suppressed at high nitrate availability, resulting in the nitrate induction
    of TAR2 and LAX3 expression that is required for optimal stimulation of LR development
    by nitrate. Altogether, our results indicate that the NRT1.1 transceptor coordinately
    controls several crucial auxin-associated processes required for LRP development,
    and as a consequence that NRT1.1 plays a much more integrated role than previously
    anticipated in regulating the nitrate response of root system architecture.
article_processing_charge: No
article_type: original
author:
- first_name: A
  full_name: Maghiaoui, A
  last_name: Maghiaoui
- first_name: E
  full_name: Bouguyon, E
  last_name: Bouguyon
- first_name: Candela
  full_name: Cuesta, Candela
  id: 33A3C818-F248-11E8-B48F-1D18A9856A87
  last_name: Cuesta
  orcid: 0000-0003-1923-2410
- first_name: F
  full_name: Perrine-Walker, F
  last_name: Perrine-Walker
- first_name: C
  full_name: Alcon, C
  last_name: Alcon
- first_name: G
  full_name: Krouk, G
  last_name: Krouk
- first_name: Eva
  full_name: Benková, Eva
  id: 38F4F166-F248-11E8-B48F-1D18A9856A87
  last_name: Benková
  orcid: 0000-0002-8510-9739
- first_name: P
  full_name: Nacry, P
  last_name: Nacry
- first_name: A
  full_name: Gojon, A
  last_name: Gojon
- first_name: L
  full_name: Bach, L
  last_name: Bach
citation:
  ama: Maghiaoui A, Bouguyon E, Cuesta C, et al. The Arabidopsis NRT1.1 transceptor
    coordinately controls auxin biosynthesis and transport to regulate root branching
    in response to nitrate. <i>Journal of Experimental Botany</i>. 2020;71(15):4480-4494.
    doi:<a href="https://doi.org/10.1093/jxb/eraa242">10.1093/jxb/eraa242</a>
  apa: Maghiaoui, A., Bouguyon, E., Cuesta, C., Perrine-Walker, F., Alcon, C., Krouk,
    G., … Bach, L. (2020). The Arabidopsis NRT1.1 transceptor coordinately controls
    auxin biosynthesis and transport to regulate root branching in response to nitrate.
    <i>Journal of Experimental Botany</i>. Oxford University Press. <a href="https://doi.org/10.1093/jxb/eraa242">https://doi.org/10.1093/jxb/eraa242</a>
  chicago: Maghiaoui, A, E Bouguyon, Candela Cuesta, F Perrine-Walker, C Alcon, G
    Krouk, Eva Benková, P Nacry, A Gojon, and L Bach. “The Arabidopsis NRT1.1 Transceptor
    Coordinately Controls Auxin Biosynthesis and Transport to Regulate Root Branching
    in Response to Nitrate.” <i>Journal of Experimental Botany</i>. Oxford University
    Press, 2020. <a href="https://doi.org/10.1093/jxb/eraa242">https://doi.org/10.1093/jxb/eraa242</a>.
  ieee: A. Maghiaoui <i>et al.</i>, “The Arabidopsis NRT1.1 transceptor coordinately
    controls auxin biosynthesis and transport to regulate root branching in response
    to nitrate,” <i>Journal of Experimental Botany</i>, vol. 71, no. 15. Oxford University
    Press, pp. 4480–4494, 2020.
  ista: Maghiaoui A, Bouguyon E, Cuesta C, Perrine-Walker F, Alcon C, Krouk G, Benková
    E, Nacry P, Gojon A, Bach L. 2020. The Arabidopsis NRT1.1 transceptor coordinately
    controls auxin biosynthesis and transport to regulate root branching in response
    to nitrate. Journal of Experimental Botany. 71(15), 4480–4494.
  mla: Maghiaoui, A., et al. “The Arabidopsis NRT1.1 Transceptor Coordinately Controls
    Auxin Biosynthesis and Transport to Regulate Root Branching in Response to Nitrate.”
    <i>Journal of Experimental Botany</i>, vol. 71, no. 15, Oxford University Press,
    2020, pp. 4480–94, doi:<a href="https://doi.org/10.1093/jxb/eraa242">10.1093/jxb/eraa242</a>.
  short: A. Maghiaoui, E. Bouguyon, C. Cuesta, F. Perrine-Walker, C. Alcon, G. Krouk,
    E. Benková, P. Nacry, A. Gojon, L. Bach, Journal of Experimental Botany 71 (2020)
    4480–4494.
date_created: 2020-06-08T10:10:28Z
date_published: 2020-07-25T00:00:00Z
date_updated: 2024-10-21T06:02:27Z
day: '25'
department:
- _id: EvBe
doi: 10.1093/jxb/eraa242
external_id:
  isi:
  - '000553127600013'
  pmid:
  - '32428238'
intvolume: '        71'
isi: 1
issue: '15'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://hal.inrae.fr/hal-02619371
month: '07'
oa: 1
oa_version: Submitted Version
page: 4480-4494
pmid: 1
publication: Journal of Experimental Botany
publication_identifier:
  eissn:
  - 1460-2431
  issn:
  - 0022-0957
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: The Arabidopsis NRT1.1 transceptor coordinately controls auxin biosynthesis
  and transport to regulate root branching in response to nitrate
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 71
year: '2020'
...