H2O2 priming induces proteomic responses to defense against salt stress in maize
- 17 February 2021
- journal article
- research article
- Published by Springer Science and Business Media LLC in Plant Molecular Biology
- Vol. 106 (1-2), 33-48
- https://doi.org/10.1007/s11103-021-01127-x
Abstract
Key message H2O2 priming reprograms essential proteins’ expression to help plants survive, promoting responsive and unresponsive proteins adjustment to salt stress. Abstacrt Priming is a powerful strategy to enhance abiotic stress tolerance in plants. Despite this, there is scarce information about the mechanisms induced by H2O2 priming for salt stress tolerance, particularly on proteome modulation. Improving maize cultivation in areas subjected to salinity is imperative for the local economy and food security. Thereby, this study aimed to investigate physiological changes linked with post-translational protein events induced by foliar H2O2 priming of Zea mays plants under salt stress. As expected, salt treatment promoted a considerable accumulation of Na+ ions, a 12-fold increase. It drastically affected growth parameters and relative water content, as well as promoted adverse alteration in the proteome profile, when compared to the absence of salt conditions. Conversely, H2O2 priming was beneficial via specific proteome reprogramming, which promoted better response to salinity by 16% reduction in Na+ content and shoots growth improvement, increasing 61% in dry mass. The identified proteins were associated with photosynthesis and redox homeostasis, critical metabolic pathways for helping plants survive in saline stress by the protection of chloroplasts organization and carbon fixation, as well as state redox. This research provides new proteomic data to improve understanding and forward identifying biotechnological strategies to promote salt stress tolerance.Keywords
Funding Information
- Conselho Nacional de Desenvolvimento Científico e Tecnológico
- Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
- Fundação Cearense de Apoio ao Desenvolvimento Científico e Tecnológico
This publication has 74 references indexed in Scilit:
- Proteome changes in wild and modern wheat leaves upon drought stress by two-dimensional electrophoresis and nanoLC-ESI–MS/MSPublished by Springer Science and Business Media LLC ,2013
- Cooperative D1 Degradation in the Photosystem II Repair Mediated by Chloroplastic Proteases in ArabidopsisPlant Physiology, 2012
- Method optimization for proteomic analysis of soybean leaf: improvements in identification of new and low-abundance proteinsGenetics and Molecular Biology, 2012
- Photorespiration: current status and approaches for metabolic engineeringCurrent Opinion in Plant Biology, 2010
- In-gel digestion for mass spectrometric characterization of proteins and proteomesNature Protocols, 2006
- Effects of salt stress on plant growth, stomatal response and solute accumulation of different maize genotypesBrazilian Journal of Plant Physiology, 2004
- Improved staining of proteins in polyacrylamide gels including isoelectric focusing gels with clear background at nanogram sensitivity using Coomassie Brilliant Blue G‐250 and R‐250Electrophoresis, 1988
- A Rapid and Sensitive Method for the Quantitation of Microgram Quantities of Protein Utilizing the Principle of Protein-Dye BindingAnalytical Biochemistry, 1976
- A rapid and sensitive method for the quantitation of microgram quantities of protein utilizing the principle of protein-dye bindingAnalytical Biochemistry, 1976
- Rapid colorimetric determination of nitrate in plant tissue by nitration of salicylic acidCommunications in Soil Science and Plant Analysis, 1975