Related Experiment Video
Updated: Jun 25, 2026
07:22
Protein Extract Preparation and Co-immunoprecipitation from Caenorhabditis elegans
Published on: May 23, 2020
Optimized protein extraction methods for proteomic analysis of Rhizoctonia solani
Dilip K Lakshman1, Savithiry S Natarajan, Sukla Lakshman
1Floral and Nursery Plants Research Unit, USDA-ARS, 10300 Baltimore Avenue, Beltsville, Maryland 20705, USA. Dilip.Lakshman@ars.usda.gov
Mycologia
|February 11, 2009
Summary
This study optimized protein extraction for Rhizoctonia solani, a key plant pathogen. The developed methods enable 2-D gel proteomic analysis, aiding research into its molecular biology and host interactions.
Area of Science:
- Mycology
- Plant Pathology
- Proteomics
Background:
- Rhizoctonia solani is a significant fungal pathogen causing root diseases in important crops.
- Understanding its molecular biology, especially early infection stages, is crucial but limited.
- Proteomic technologies offer powerful insights into pathogen biology and host interactions.
Purpose of the Study:
- To develop and optimize protein extraction protocols for 2-D gel-based proteomic analysis of Rhizoctonia solani.
- To facilitate future studies on the molecular mechanisms of R. solani infection and gene expression.
Main Methods:
- Comparison of two established protein extraction protocols (TCA-acetone precipitation and phosphate solubilization) for R. solani (AG-4, isolate Rs23).
- Two-dimensional polyacrylamide gel electrophoresis (2-D PAGE) for protein separation.
- Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF-MS) for protein identification.
Main Results:
- Both tested protein extraction protocols proved effective for R. solani.
- Approximately 450 protein spots were visualized on Coomassie blue-stained 2-D PAGE gels.
- Mass spectrometry identified eleven protein spots by matching peptide mass fingerprints to public fungal databases.
Conclusions:
- The optimized protein extraction protocols are suitable for global proteomic studies of Rhizoctonia solani.
- These methods will advance research into the pathogen's biology, host interactions, and gene expression during infection.
