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Efficient Agroinfiltration of Plants for High-level Transient Expression of Recombinant Proteins
Published on: July 23, 2013
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A simple agroinfiltration method for transient gene expression in plant leaf discs.
Kouki Matsuo1, Noriho Fukuzawa1, Takeshi Matsumura1
1Bioproduction Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 2-17-2-1 Tsukisamu-Higashi, Toyohira-ku, Sapporo 062-8517, Japan.
Journal of Bioscience and Bioengineering
|March 21, 2016
Summary
A novel Agrobacterium-mediated transient gene expression system was developed for Nicotiana benthamiana leaf discs. This method enables rapid protein expression and functional evaluation while preventing environmental contamination.
Area of Science:
- Plant Biotechnology
- Molecular Biology
- Genetics
Background:
- Transient gene expression systems are crucial for rapid functional analysis of genes and proteins in plants.
- Agrobacterium-mediated transformation is a widely used method for plant genetic modification.
- Existing methods may require specialized equipment or large volumes of reagents, limiting accessibility.
Purpose of the Study:
- To develop a simple, accessible, and safe transient gene expression system using Agrobacterium-mediated transformation.
- To demonstrate the successful expression of model proteins and functional evaluation of viral proteins.
- To prevent environmental contamination associated with genetically modified organisms.
Main Methods:
- Agrobacterium-mediated vacuum infiltration of leaf discs from Nicotiana benthamiana.
- Use of a needleless plastic syringe under conventional vacuum conditions.
- Expression of model proteins (GFP, GUS, GM-CSF, FGF1) and viral RNA silencing suppressors (p19).
Main Results:
- Successful transient expression of multiple model proteins within 4 days post-infiltration.
- Demonstrated functional evaluation of viral RNA silencing suppressors.
- Prevention of genetically modified bacteria contamination and diffusion.
Conclusions:
- The developed system offers a simple and efficient method for transient gene expression in plants.
- It requires minimal specialized apparatus and reagent volumes, facilitating simultaneous evaluation of multiple vectors.
- The method enhances biosafety by preventing environmental spread of genetically modified bacteria.
