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Updated: Dec 23, 2025

Plant Promoter Analysis: Identification and Characterization of Root Nodule Specific Promoter in the Common Bean
Published on: December 23, 2017
Towards understanding the hierarchical nitrogen signalling network in plants
Zhihua Zhang1, Bin Hu2, Chengcai Chu2
1State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, the Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, China; School of Life Sciences, Guangzhou University, Guangzhou 510006, China; Guangdong Laboratory of Lingnan Modern Agricultural Science and Technology, Guangzhou 510642, China.
Plants sense nitrogen (N) using molecular pathways like NRT1.1-NLP. Understanding N signalling improves nitrogen use efficiency (NUE) in crops, crucial for food security and reducing environmental impact.
Area of Science:
- Plant Biology
- Molecular Biology
- Agricultural Science
Background:
- Nitrogen (N) is vital for plant growth and crop production.
- Low nitrogen use efficiency (NUE) and fertilizer overuse cause environmental issues.
- Understanding N sensing and signaling is key to improving crop NUE.
Purpose of the Study:
- To review recent advancements in plant N signaling pathways.
- To explore the molecular mechanisms of N sensing and signaling.
- To discuss integrating hierarchical regulation for improved NUE.
Main Methods:
- Forward genetics screening and functional analysis.
- Systems biology approaches to delineate N regulatory networks.
- Analysis of cellular and whole-plant N signaling.
Main Results:
- The NRT1.1-NLP pathway is central to cellular N signaling.
- A preliminary N regulatory network has been established.
- Long-distance N signaling mechanisms at the whole-plant level are identified.
Conclusions:
- Recent insights into plant N signaling networks are highlighted.
- Further integration of hierarchical N signaling regulation is proposed.
- This knowledge provides a basis for enhancing crop NUE and sustainability.
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