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Updated: Apr 23, 2026
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Real-time Imaging of Single Engineered RNA Transcripts in Living Cells Using Ratiometric Bimolecular Beacons
Published on: August 6, 2014
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The tracking of intercellular small RNA movement.
Christophe Himber1, Patrice Dunoyer
1Institut de Biologie Moléculaire des Plantes du CNRS, UPR2357, Université de Strasbourg, Strasbourg Cedex, France.
Methods in Molecular Biology (Clifton, N.J.)
|October 8, 2014
Summary
Researchers visualized the cell-to-cell spread of RNA silencing using fluorescently labeled small interfering RNA (siRNA). This method allows direct monitoring of mobile small noncoding RNA (sRNA) molecules in plants.
Area of Science:
- Molecular Biology
- Plant Science
- Genetics
Background:
- RNA silencing regulates gene expression and defends against foreign nucleic acids.
- Small noncoding RNA (sRNA) molecules mediate sequence-specific RNA silencing.
- RNA silencing exhibits mobility, spreading between plant cells via sRNA movement.
Purpose of the Study:
- To develop a method for directly monitoring the cell-to-cell spread of RNA silencing in plants.
- To visualize the movement of small interfering RNA (siRNA) molecules.
Main Methods:
- Biolistic delivery of fluorescently labeled siRNA into plant cells.
- Direct observation and monitoring of labeled siRNA spread.
Main Results:
- Successful delivery and visualization of fluorescently labeled siRNA.
- Demonstration of siRNA movement between plant cells, indicating mobile RNA silencing.
Conclusions:
- Biolistic delivery of labeled siRNA provides a direct method to study RNA silencing mobility.
- This technique facilitates the investigation of intercellular communication mediated by sRNAs in plants.
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