Redox regulation in primary nitrate response: Nitric oxide in the spotlight
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View abstract on PubMed
Summary
This summary is machine-generated.Nitrogen uptake in plants is regulated by nitric oxide (NO) and reactive oxygen species (ROS). This review highlights NO
Area Of Science
- Plant Physiology and Molecular Biology
- Nutrient Signaling
- Redox Biology
Background
- Nitrogen (N) is an essential macronutrient for plant growth, with nitrate being the primary soil N source.
- The primary nitrate response (PNR) encompasses early events following nitrate perception in plants.
- Redox signaling, involving molecules like nitric oxide (NO) and reactive oxygen species (ROS), plays a crucial role in PNR.
Purpose Of The Study
- To review recent findings on the impact of redox signals on the primary nitrate response (PNR).
- To explore the novel role of nitric oxide (NO) as a signaling molecule in PNR and its homeostasis.
- To discuss the interplay between NO, reactive oxygen species (ROS), and nitrate signaling in plants.
Main Methods
- Review of current literature on nitrate signaling, redox biology, and plant physiology.
- Analysis of the sources and regulation of nitric oxide (NO) during PNR.
- Exploration of the molecular mechanisms of NO action, including S-nitrosation of transcription factors.
Main Results
- Nitric oxide (NO) is identified as a key signal molecule modulating the primary nitrate response (PNR).
- Mechanisms for controlling NO homeostasis during PNR are discussed, alongside the role of ROS.
- Direct action of NO via S-nitrosation of NLP7, a master regulator of nitrate signaling, is highlighted.
Conclusions
- Redox signaling, particularly involving NO, is critical for fine-tuning nitrate signaling pathways in plants.
- Understanding NO homeostasis and its interaction with ROS provides new insights into plant N assimilation.
- Future research directions are suggested to further elucidate the redox regulation of nitrate signaling.
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