---
_id: '1532'
abstract:
- lang: eng
  text: Ammonium is the major nitrogen source in some plant ecosystems but is toxic
    at high concentrations, especially when available as the exclusive nitrogen source.
    Ammonium stress rapidly leads to various metabolic and hormonal imbalances that
    ultimately inhibit root and shoot growth in many plant species, including Arabidopsis
    thaliana (L.) Heynh. To identify molecular and genetic factors involved in seedling
    survival with prolonged exclusive NH4+ nutrition, a transcriptomic analysis with
    microarrays was used. Substantial transcriptional differences were most pronounced
    in (NH4)2SO4-grown seedlings, compared with plants grown on KNO3 or NH4NO3. Consistent
    with previous physiological analyses, major differences in the expression modules
    of photosynthesis-related genes, an altered mitochondrial metabolism, differential
    expression of the primary NH4+ assimilation, alteration of transporter gene expression
    and crucial changes in cell wall biosynthesis were found. A major difference in
    plant hormone responses, particularly of auxin but not cytokinin, was striking.
    The activity of the DR5::GUS reporter revealed a dramatically decreased auxin
    response in (NH4)2SO4-grown primary roots. The impaired root growth on (NH4)2SO4
    was partially rescued by exogenous auxin or in specific mutants in the auxin pathway.
    The data suggest that NH4+-induced nutritional and metabolic imbalances can be
    partially overcome by elevated auxin levels.
article_processing_charge: No
article_type: original
author:
- first_name: Huaiyu
  full_name: Yang, Huaiyu
  last_name: Yang
- first_name: Jenny
  full_name: Von Der Fecht Bartenbach, Jenny
  last_name: Von Der Fecht Bartenbach
- first_name: Jirí
  full_name: Friml, Jirí
  id: 4159519E-F248-11E8-B48F-1D18A9856A87
  last_name: Friml
  orcid: 0000-0002-8302-7596
- first_name: Jan
  full_name: Lohmann, Jan
  last_name: Lohmann
- first_name: Benjamin
  full_name: Neuhäuser, Benjamin
  last_name: Neuhäuser
- first_name: Uwe
  full_name: Ludewig, Uwe
  last_name: Ludewig
citation:
  ama: Yang H, Von Der Fecht Bartenbach J, Friml J, Lohmann J, Neuhäuser B, Ludewig
    U. Auxin-modulated root growth inhibition in Arabidopsis thaliana seedlings with
    ammonium as the sole nitrogen source. <i>Functional Plant Biology</i>. 2015;42(3):239-251.
    doi:<a href="https://doi.org/10.1071/FP14171">10.1071/FP14171</a>
  apa: Yang, H., Von Der Fecht Bartenbach, J., Friml, J., Lohmann, J., Neuhäuser,
    B., &#38; Ludewig, U. (2015). Auxin-modulated root growth inhibition in Arabidopsis
    thaliana seedlings with ammonium as the sole nitrogen source. <i>Functional Plant
    Biology</i>. CSIRO. <a href="https://doi.org/10.1071/FP14171">https://doi.org/10.1071/FP14171</a>
  chicago: Yang, Huaiyu, Jenny Von Der Fecht Bartenbach, Jiří Friml, Jan Lohmann,
    Benjamin Neuhäuser, and Uwe Ludewig. “Auxin-Modulated Root Growth Inhibition in
    Arabidopsis Thaliana Seedlings with Ammonium as the Sole Nitrogen Source.” <i>Functional
    Plant Biology</i>. CSIRO, 2015. <a href="https://doi.org/10.1071/FP14171">https://doi.org/10.1071/FP14171</a>.
  ieee: H. Yang, J. Von Der Fecht Bartenbach, J. Friml, J. Lohmann, B. Neuhäuser,
    and U. Ludewig, “Auxin-modulated root growth inhibition in Arabidopsis thaliana
    seedlings with ammonium as the sole nitrogen source,” <i>Functional Plant Biology</i>,
    vol. 42, no. 3. CSIRO, pp. 239–251, 2015.
  ista: Yang H, Von Der Fecht Bartenbach J, Friml J, Lohmann J, Neuhäuser B, Ludewig
    U. 2015. Auxin-modulated root growth inhibition in Arabidopsis thaliana seedlings
    with ammonium as the sole nitrogen source. Functional Plant Biology. 42(3), 239–251.
  mla: Yang, Huaiyu, et al. “Auxin-Modulated Root Growth Inhibition in Arabidopsis
    Thaliana Seedlings with Ammonium as the Sole Nitrogen Source.” <i>Functional Plant
    Biology</i>, vol. 42, no. 3, CSIRO, 2015, pp. 239–51, doi:<a href="https://doi.org/10.1071/FP14171">10.1071/FP14171</a>.
  short: H. Yang, J. Von Der Fecht Bartenbach, J. Friml, J. Lohmann, B. Neuhäuser,
    U. Ludewig, Functional Plant Biology 42 (2015) 239–251.
date_created: 2018-12-11T11:52:34Z
date_published: 2015-03-01T00:00:00Z
date_updated: 2022-05-24T09:02:24Z
day: '01'
department:
- _id: JiFr
doi: 10.1071/FP14171
external_id:
  pmid:
  - '32480670'
intvolume: '        42'
issue: '3'
language:
- iso: eng
month: '03'
oa_version: None
page: 239 - 251
pmid: 1
publication: Functional Plant Biology
publication_identifier:
  issn:
  - 1445-4408
publication_status: published
publisher: CSIRO
publist_id: '5639'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Auxin-modulated root growth inhibition in Arabidopsis thaliana seedlings with
  ammonium as the sole nitrogen source
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 42
year: '2015'
...