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Updated: Aug 5, 2026
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Plant Promoter Analysis: Identification and Characterization of Root Nodule Specific Promoter in the Common Bean
Published on: December 23, 2017
GmPP2C113, a Soybean Protein Phosphatase, Positively Regulates Both Salt Tolerance and Symbiotic Nodulation
Danxia Ke1, Zhaoyuan Zhou1, Xiaoli Song1
1College of Life Sciences, Xinyang Normal University, Xinyang 464000, China.
Genes
|July 28, 2026
Summary
Soybean GmPP2C113 enhances salt tolerance and promotes symbiotic nodulation under stress. This protein phosphatase acts as a key regulator coordinating stress adaptation and plant-microbe symbiosis.
Area of Science:
- Plant molecular biology
- Plant physiology
- Biochemistry
Background:
- Protein phosphatase type 2C (PP2C) family members are crucial signaling hubs in plants.
- Their role in balancing stress adaptation and symbiotic interactions is not well understood.
Purpose of the Study:
- Investigate the function of soybean GmPP2C113 in coordinating salt stress responses and symbiotic nodulation.
- Determine if GmPP2C113 links these two processes in *Glycine max*.
Main Methods:
- Gene cloning and characterization of GmPP2C113 (subcellular localization, transcriptional activity, protein interactions).
- Analysis of gene expression under salt stress and rhizobial inoculation.
- Assessment of function using transgenic soybean plants overexpressing *GmPP2C113*.
Main Results:
- GmPP2C113 localizes to the nucleus, exhibits transcriptional activation, and interacts with GmPP2C47.
- Gene expression is induced by salt stress and rhizobial infection, peaking in mature nodules.
- Overexpression enhances salt tolerance, upregulates stress genes, increases nodule number, and promotes nodulation under salt stress.
Conclusions:
- GmPP2C113 positively modulates salt tolerance in soybean.
- It acts as a molecular node sustaining symbiotic nodulation during salt stress.
- Provides insights into the coordinated regulation of stress adaptation and symbiosis.
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