Phytohormones and Nitric Oxide Interactions During Abiotic Stress Responses

2014 ◽  
pp. 211-224 ◽  
Author(s):  
Paulo T. Mioto ◽  
Luciano Freschi ◽  
Helenice Mercier
Keyword(s):  
Nitric Oxide ◽  
Abiotic Stress ◽  
Stress Responses

Nitric Oxide-Induced Regulation of Plant Developmental Processes and Abiotic Stress Responses

2019 ◽  
pp. 381-408
Author(s):  
Lekshmy Sathee ◽  
Hari Singh Meena ◽  
Sandeep B. Adavi ◽  
Shailendra K. Jha
Keyword(s):  
Nitric Oxide ◽  
Abiotic Stress ◽  
Stress Responses ◽  
Developmental Processes

scholarly journals Gasotransmitters in Action: Nitric Oxide-Ethylene Crosstalk during Plant Growth and Abiotic Stress Responses

Antioxidants ◽  
2019 ◽  
Vol 8 (6) ◽  
pp. 167 ◽  
Author(s):  
Zsuzsanna Kolbert ◽  
Gábor Feigl ◽  
Luciano Freschi ◽  
Péter Poór
Keyword(s):  
Nitric Oxide ◽  
Abiotic Stress ◽  
Stress Responses ◽  
Developmental Stages ◽  
Iron Acquisition ◽  
Stomatal Closure ◽  
Atmospheric Gases ◽  
Specific Receptor ◽  
Complete Understanding ◽  
Plant Signals

Since their first description as atmospheric gases, it turned out that both nitric oxide (NO) and ethylene (ET) are multifunctional plant signals. ET and polyamines (PAs) use the same precursor for their synthesis, and NO can be produced from PA oxidation. Therefore, an indirect metabolic link between NO and ET synthesis can be considered. NO signal is perceived primarily through S-nitrosation without the involvement of a specific receptor, while ET signal is sensed by a well-characterized receptor complex. Both NO and ET are synthetized by plants at various developmental stages (e.g., seeds, fruits) and as a response to numerous environmental factors (e.g., heat, heavy metals) and they mutually regulate each other’s levels. Most of the growth and developmental processes (e.g., fruit ripening, de-etiolation) are regulated by NO–ET antagonism, while in abiotic stress responses, both antagonistic (e.g., dark-induced stomatal opening, cadmium-induced cell death) and synergistic (e.g., UV-B-induced stomatal closure, iron deficiency-induced expression of iron acquisition genes) NO–ET interplays have been revealed. Despite the numerous pieces of experimental evidence revealing NO–ET relationships in plants, the picture is far from complete. Understanding the mechanisms of NO–ET interactions may contribute to the increment of yield and intensification of stress tolerance of crop plants in changing environments.

scholarly journals Correction to: Nitric Oxide-Induced Regulation of Plant Developmental Processes and Abiotic Stress Responses

2019 ◽  
pp. C1-C1
Author(s):  
Lekshmy Sathee ◽  
Hari Singh Meena ◽  
Sandeep B. Adavi ◽  
Shailendra K. Jha
Keyword(s):  
Nitric Oxide ◽  
Abiotic Stress ◽  
Stress Responses ◽  
Developmental Processes

scholarly journals Differential expression of AtWAKL10 in response to nitric oxide suggests a putative role in biotic and abiotic stress responses

PeerJ ◽  
2019 ◽  
Vol 7 ◽  
pp. e7383
Author(s):  
Phearom Bot ◽  
Bong-Gyu Mun ◽  
Qari Muhammad Imran ◽  
Adil Hussain ◽  
Sang-Uk Lee ◽  
...  
Keyword(s):  
Nitric Oxide ◽  
Abiotic Stress ◽  
Pseudomonas Syringae ◽  
Stress Responses ◽  
Abiotic Stresses ◽  
Nitrosative Stress ◽  
Abiotic Stress Tolerance ◽  
Biotic And Abiotic Stress ◽  
Transcript Accumulation

Plant defense against pathogens and abiotic stresses is regulated differentially by communicating signal transduction pathways in which nitric oxide (NO) plays a key role. Here, we show the biological role of Arabidopsis thaliana wall-associated kinase (AtWAK) Like10 (AtWAKL10) that exhibits greater than a 100-fold change in transcript accumulation in response to the NO donor S-nitroso-L-cysteine (CysNO), identified from high throughput RNA-seq based transcriptome analysis. Loss of AtWAKL10 function showed a similar phenotype to wild type (WT) with, however, less branching. The growth of atwakl10 on media supplemented with oxidative or nitrosative stress resulted in differential results with improved growth following treatment with CysNO but reduced growth in response to S-nitrosoglutatione (GSNO) and methyl-viologen. Further, atwakl10 plants exhibited increased susceptibility to virulent Pseudomonas syringae pv tomato (Pst) DC3000 with a significant increase in pathogen growth and decrease in PR1 transcript accumulation compared to WT overtime. Similar results were found in response to Pst DC3000 avrB, resulting in increased cell death as shown by increased electrolyte leakage in atwakl10. Furthermore, atwakl10 also showed increased reactive oxygen species accumulation following Pst DC3000 avrB inoculation. Promoter analysis of AtWAKL10 showed transcription factor (TF) binding sites for biotic and abiotic stress-related TFs. Further investigation into the role of AtWAKL10 in abiotic stresses showed that following two weeks water-withholding drought condition most of the atwakl10 plants got wilted; however, the majority (60%) of these plants recovered following re-watering. In contrast, in response to salinity stress, atwakl10 showed reduced germination under 150 mM salt stress compared to WT, suggesting that NO-induced AtWAKL10 differentially regulates different abiotic stresses. Taken together, this study further elucidates the importance of NO-induced changes in gene expression and their role in plant biotic and abiotic stress tolerance.

Roles of Nitric Oxide in Conferring Multiple Abiotic Stress Tolerance in Plants and Crosstalk with Other Plant Growth Regulators

2021 ◽  
Author(s):  
Rajesh Kumar Singhal ◽  
Hanuman Singh Jatav ◽  
Tariq Aftab ◽  
Saurabh Pandey ◽  
Udit Nandan Mishra ◽  
...  
Keyword(s):  
Nitric Oxide ◽  
Abiotic Stress ◽  
Plant Growth ◽  
Stress Tolerance ◽  
Plant Growth Regulators ◽  
Growth Regulators ◽  
Abiotic Stress Tolerance
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