Arabidopsis thaliana transcription factors MYB28 and MYB29 shape ammonium stress responses by regulating Fe homeostasis

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Arabidopsis thaliana transcription factors MYB28 and MYB29 shape ammonium stress responses by regulating Fe homeostasis. / Coleto, Inmaculada; Bejarano, Iraide; Marin-Pena, Agustin Javier; Medina, Joaquin; Rioja, Cristina; Burow, Meike; Marino, Daniel.

In: New Phytologist, Vol. 229, No. 2, 2021, p. 1021-1035.

Research output: Contribution to journal › Journal article › Research › peer-review

Harvard

Coleto, I, Bejarano, I, Marin-Pena, AJ, Medina, J, Rioja, C, Burow, M & Marino, D 2021, 'Arabidopsis thaliana transcription factors MYB28 and MYB29 shape ammonium stress responses by regulating Fe homeostasis', New Phytologist, vol. 229, no. 2, pp. 1021-1035. https://doi.org/10.1111/nph.16918

APA

Coleto, I., Bejarano, I., Marin-Pena, A. J., Medina, J., Rioja, C., Burow, M., & Marino, D. (2021). Arabidopsis thaliana transcription factors MYB28 and MYB29 shape ammonium stress responses by regulating Fe homeostasis. New Phytologist, 229(2), 1021-1035. https://doi.org/10.1111/nph.16918

Vancouver

Coleto I, Bejarano I, Marin-Pena AJ, Medina J, Rioja C, Burow M et al. Arabidopsis thaliana transcription factors MYB28 and MYB29 shape ammonium stress responses by regulating Fe homeostasis. New Phytologist. 2021;229(2):1021-1035. https://doi.org/10.1111/nph.16918

Author

Coleto, Inmaculada ; Bejarano, Iraide ; Marin-Pena, Agustin Javier ; Medina, Joaquin ; Rioja, Cristina ; Burow, Meike ; Marino, Daniel. / Arabidopsis thaliana transcription factors MYB28 and MYB29 shape ammonium stress responses by regulating Fe homeostasis. In: New Phytologist. 2021 ; Vol. 229, No. 2. pp. 1021-1035.

Bibtex

@article{665fda15ba2644588661310e324d8e1b,
title = "Arabidopsis thaliana transcription factors MYB28 and MYB29 shape ammonium stress responses by regulating Fe homeostasis",
abstract = "Although ammonium (NH4+) is a key intermediate of plant nitrogen metabolism, high concentrations of NH(4)(+)in the soil provoke physiological disorders that lead to the development of stress symptoms. Ammonium nutrition was shown to induce the accumulation of glucosinolates (GSLs) in leaves of different Brassicaceae species. To further understand the link between ammonium nutrition and GSLs, we analysed the ammonium stress response of Arabidopsis mutants impaired in GSL metabolic pathway. We showed that theMYB28andMYB29double mutant (myb28myb29), which is almost deprived of aliphatic GSLs, is highly hypersensitive to ammonium nutrition. Moreover, we evidenced that the stress symptoms developed were not a consequence of the lack of aliphatic GSLs. Transcriptomic analysis highlighted the induction of an iron (Fe) deficiency response inmyb28myb29under ammonium nutrition. Consistently, ammonium-grownmyb28myb29plants showed altered Fe accumulation and homeostasis. Interestingly, we showed overall that growing Arabidopsis with increased Fe availability relieved ammonium stress symptoms and that this was associated withMYB28andMYB29expression. Taken together, our data indicated that the control of Fe homeostasis was crucial for the Arabidopsis response to ammonium nutrition and evidenced thatMYB28andMYB29play a role in this control.",
keywords = "abiotic stress, ammonium, Arabidopsis thaliana, glucosinolates, iron, nitrate, nitrogen nutrition, transcription factor, GDP-MANNOSE PYROPHOSPHORYLASE, GLUCOSINOLATE BREAKDOWN, IRON-ACQUISITION, METABOLISM, PLANTS, BIOSYNTHESIS, EXPRESSION, PROTEOMICS, THALIANA, REVEALS",
author = "Inmaculada Coleto and Iraide Bejarano and Marin-Pena, {Agustin Javier} and Joaquin Medina and Cristina Rioja and Meike Burow and Daniel Marino",
year = "2021",
doi = "10.1111/nph.16918",
language = "English",
volume = "229",
pages = "1021--1035",
journal = "New Phytologist",
issn = "0028-646X",
publisher = "Academic Press",
number = "2",

}

RIS

TY - JOUR

T1 - Arabidopsis thaliana transcription factors MYB28 and MYB29 shape ammonium stress responses by regulating Fe homeostasis

AU - Coleto, Inmaculada

AU - Bejarano, Iraide

AU - Marin-Pena, Agustin Javier

AU - Medina, Joaquin

AU - Rioja, Cristina

AU - Burow, Meike

AU - Marino, Daniel

PY - 2021

Y1 - 2021

N2 - Although ammonium (NH4+) is a key intermediate of plant nitrogen metabolism, high concentrations of NH(4)(+)in the soil provoke physiological disorders that lead to the development of stress symptoms. Ammonium nutrition was shown to induce the accumulation of glucosinolates (GSLs) in leaves of different Brassicaceae species. To further understand the link between ammonium nutrition and GSLs, we analysed the ammonium stress response of Arabidopsis mutants impaired in GSL metabolic pathway. We showed that theMYB28andMYB29double mutant (myb28myb29), which is almost deprived of aliphatic GSLs, is highly hypersensitive to ammonium nutrition. Moreover, we evidenced that the stress symptoms developed were not a consequence of the lack of aliphatic GSLs. Transcriptomic analysis highlighted the induction of an iron (Fe) deficiency response inmyb28myb29under ammonium nutrition. Consistently, ammonium-grownmyb28myb29plants showed altered Fe accumulation and homeostasis. Interestingly, we showed overall that growing Arabidopsis with increased Fe availability relieved ammonium stress symptoms and that this was associated withMYB28andMYB29expression. Taken together, our data indicated that the control of Fe homeostasis was crucial for the Arabidopsis response to ammonium nutrition and evidenced thatMYB28andMYB29play a role in this control.

AB - Although ammonium (NH4+) is a key intermediate of plant nitrogen metabolism, high concentrations of NH(4)(+)in the soil provoke physiological disorders that lead to the development of stress symptoms. Ammonium nutrition was shown to induce the accumulation of glucosinolates (GSLs) in leaves of different Brassicaceae species. To further understand the link between ammonium nutrition and GSLs, we analysed the ammonium stress response of Arabidopsis mutants impaired in GSL metabolic pathway. We showed that theMYB28andMYB29double mutant (myb28myb29), which is almost deprived of aliphatic GSLs, is highly hypersensitive to ammonium nutrition. Moreover, we evidenced that the stress symptoms developed were not a consequence of the lack of aliphatic GSLs. Transcriptomic analysis highlighted the induction of an iron (Fe) deficiency response inmyb28myb29under ammonium nutrition. Consistently, ammonium-grownmyb28myb29plants showed altered Fe accumulation and homeostasis. Interestingly, we showed overall that growing Arabidopsis with increased Fe availability relieved ammonium stress symptoms and that this was associated withMYB28andMYB29expression. Taken together, our data indicated that the control of Fe homeostasis was crucial for the Arabidopsis response to ammonium nutrition and evidenced thatMYB28andMYB29play a role in this control.

KW - abiotic stress

KW - ammonium

KW - Arabidopsis thaliana

KW - glucosinolates

KW - iron

KW - nitrate

KW - nitrogen nutrition

KW - transcription factor

KW - GDP-MANNOSE PYROPHOSPHORYLASE

KW - GLUCOSINOLATE BREAKDOWN

KW - IRON-ACQUISITION

KW - METABOLISM

KW - PLANTS

KW - BIOSYNTHESIS

KW - EXPRESSION

KW - PROTEOMICS

KW - THALIANA

KW - REVEALS

U2 - 10.1111/nph.16918

DO - 10.1111/nph.16918

M3 - Journal article

C2 - 32901916

VL - 229

SP - 1021

EP - 1035

JO - New Phytologist

JF - New Phytologist

SN - 0028-646X

IS - 2

ER -

ID: 249903395