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Updated: Nov 24, 2025

Plant Promoter Analysis: Identification and Characterization of Root Nodule Specific Promoter in the Common Bean
Published on: December 23, 2017
Nitrogen Systemic Signaling: From Symbiotic Nodulation to Root Acquisition.
Pierre Gautrat1, Carole Laffont1, Florian Frugier1
1IPS2 (Institute of Plant Sciences - Paris Saclay), CNRS, INRAe, Université Paris-Diderot, Université d'Evry, Université Paris-Saclay, Bâtiment 630, Gif-sur-Yvette, France.
Plants coordinate nitrogen (N) nutrition through root-shoot communication. This study explores conserved signaling pathways regulating both mineral N uptake and symbiotic N fixation, integrating environmental factors.
Area of Science:
- Plant Biology
- Nutrient Signaling
- Symbiotic Interactions
Background:
- Plant nutrient acquisition is regulated by resource availability and metabolic demands.
- Roots and shoots communicate to integrate whole-plant resource status.
- Nitrogen (N) nutrition involves root import and symbiotic N fixation in legumes.
Purpose of the Study:
- To investigate systemic signaling pathways controlling N nutrition in plants.
- To explore conserved features between mineral N acquisition and symbiotic N fixation regulation.
- To understand the integration of N nutrition with other environmental factors.
Main Methods:
- Comparative analysis of systemic signaling pathways.
- Focus on nitrogen (N) nutrition regulation.
- Exploration of conserved regulatory mechanisms.
Main Results:
- Identified conserved systemic signaling pathways for N nutrition.
- Demonstrated integration of mineral N uptake and symbiotic N fixation.
- Highlighted interplay with phosphate, light, and CO2 availability.
Conclusions:
- Systemic signaling is crucial for coordinating plant N nutrition.
- Conserved pathways regulate diverse N acquisition strategies.
- Environmental factors modulate N nutrition signaling pathways.
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