Ca2+-dependent H2O2 response in roots and leaves of barley - a transcriptomic investigation

Our study indicates that about 70% of the H<sub>2</sub>O<sub>2</sub>-responsive genes in barley roots require a transient increase in cytosolic Ca<sup>2+</sup> concentrations for alteration in their transcript abundance, whereas in leaves, the Ca<sup>2+</sup> dependency was much lower at about 33%. Targeted gene analysis and pathway modeling identified not only known components of the Ca<sup>2+</sup> signaling cascade in plants but also genes that are not yet connected to stimuli-associated signaling. Potential key transcription factors identified in this study can be further analyzed in barley and other crops to ultimately disentangle the underlying mechanisms of H<sub>2</sub>O<sub>2</sub>-associated signal transduction mechanisms. This could aid breeding for improved stress resistance to optimize performance and productivity under increasing climate challenges.

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Publication Details

Journal
BMC Plant Biology
Published
2025-02-20
DOI
https://doi.org/10.1186/s12870-025-06248-9
Citations
5
Primary Topic
Plant Stress Responses and Tolerance
Type
article
Field-Weighted Citation Impact
8.75

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article

Ca2+-dependent H2O2 response in roots and leaves of barley - a transcriptomic investigation

Fatima Chigri, Ute C. Vothknecht, Edgar Peiter, Carissa Bleker et al.
5 citations
BMC Plant Biology
Plant Stress Responses and Tolerance
8.75
article

Ca2+-dependent H2O2 response in roots and leaves of barley - a transcriptomic investigation

Fatima Chigri, Ute C. Vothknecht, Edgar Peiter, Carissa Bleker, Eduardo Jesús Fernández Rodríguez, Bastian Meier, Maya Giridhar, Andreas Braun, Sabarna Bhattacharyya
article en
5 citations

Abstract

Our study indicates that about 70% of the H<sub>2</sub>O<sub>2</sub>-responsive genes in barley roots require a transient increase in cytosolic Ca<sup>2+</sup> concentrations for alteration in their transcript abundance, whereas in leaves, the Ca<sup>2+</sup> dependency was much lower at about 33%. Targeted gene analysis and pathway modeling identified not only known components of the Ca<sup>2+</sup> signaling cascade in plants but also genes that are not yet connected to stimuli-associated signaling. Potential key transcription factors identified in this study can be further analyzed in barley and other crops to ultimately disentangle the underlying mechanisms of H<sub>2</sub>O<sub>2</sub>-associated signal transduction mechanisms. This could aid breeding for improved stress resistance to optimize performance and productivity under increasing climate challenges.

BMC Plant BiologyVol. 25(1)
University of Bonn (DE), National Institute of Biology (SI), Leibniz-Institute for Food Systems Biology at the Technical University of Munich (DE), Martin Luther University Halle-Wittenberg (DE)
Deutsche Forschungsgemeinschaft, Javna Agencija za Raziskovalno Dejavnost RS, Rheinische Friedrich-Wilhelms-Universität Bonn
Openalex Percentile: Top 3%
Plant Stress Responses and Tolerance
8.75
DOIOpen Access PDFOpenAlex
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