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A Simple Method for Isolation of Soybean Protoplasts and Application to Transient Gene Expression Analyses
Published on: January 25, 2018
A Simplified Wheat Protoplast Transformation System and Guideline for Avoiding Protein Localization Artifacts
Leyan Li1, Shuai Zhong1, Shuai Liu1
1State Key Laboratory of High-Efficiency Production of Wheat-Maize Double Cropping, College of Life Science, Henan Agricultural University, Zhengzhou 450046, China.
Plants (Basel, Switzerland)
|June 12, 2026
Summary
Developing a simplified wheat protoplast system improves protein localization studies. Tag position and promoter choice are critical for accurate subcellular localization and phase separation analysis, minimizing experimental artifacts.
Area of Science:
- Plant molecular biology
- Cell biology
- Biochemistry
Background:
- Transient protoplast transformation is crucial for wheat protein studies.
- Existing methods have limitations, leading to artifacts in localization and phase separation analysis.
- Systematic vector design analysis is lacking.
Purpose of the Study:
- To establish a simplified and robust wheat mesophyll protoplast transformation method.
- To systematically analyze the impact of vector design elements on protein localization and phase separation.
- To provide guidelines for minimizing artifacts in wheat research.
Main Methods:
- Developed a simplified wheat mesophyll protoplast transformation protocol with a shortened cycle and streamlined handling.
- Examined the effects of fluorescent tag position (N- vs. C-terminal) and promoter type (native, single CaMV35S, double CaMV35S).
- Utilized confocal imaging to acquire high-quality data on protein localization and phase separation.
Main Results:
- The simplified method enables stable, high-quality confocal imaging data acquisition.
- Fluorescent tag position significantly impacts the accuracy of protein localization patterns.
- Native promoters are optimal for physiological accuracy; strong constitutive promoters (CaMV35S) can cause overexpression artifacts, leading to false positives or negatives.
Conclusions:
- The standardized transformation system minimizes artifacts in wheat protein localization and phase separation research.
- Defined vector design principles are essential for reliable experimental outcomes.
- This framework enhances the study of protein behavior in wheat.
