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Protein Dynamics in Living Cells

Protein Dynamics in Living Cells

Different fluorescence-based techniques are used to study the protein dynamics in living cells. These techniques include FRAP, FRET, and PET.
Fluorescent recovery after photobleaching (FRAP) is a fluorescent-protein-based detection technique used to quantify protein movement rates within the cell. This method exposes a small portion of the cell to an intense laser beam. The laser beam causes permanent photobleaching of the fluorophore-tagged proteins in the exposed region. As the bleached...

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Related Experiment Video

Updated: Jun 4, 2026

Real-time Imaging of Plant Cell Surface Dynamics with Variable-angle Epifluorescence Microscopy

Real-time Imaging of Plant Cell Surface Dynamics with Variable-angle Epifluorescence Microscopy

Published on: December 12, 2015

Visualizing cellular dynamics in plant-microbe interactions using fluorescent-tagged proteins.

William Underwood¹, Serry Koh, Shauna C Somerville

¹Energy Biosciences Institute, University of California, Berkeley, CA, USA.

Methods in Molecular Biology (Clifton, N.J.)

|March 2, 2011

Summary

This summary is machine-generated.

New imaging tools like fluorescent proteins and confocal microscopy reveal dynamic plant-microbe interactions. This research offers insights into cellular defense mechanisms and fundamental plant cell processes.

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Area of Science:

Plant biology
Microbiology
Cellular imaging

Background:

Plant-microbe interactions involve complex cellular dynamics.
Traditional electron microscopy provided static, limited views of these interactions.
Live cell imaging was previously restricted by resolution and marker availability.

Purpose of the Study:

To explore the dynamic nature of plant cell responses to microbial pathogens.
To investigate cellular trafficking and reorganization during plant-microbe interactions.
To leverage advanced imaging techniques for novel insights into plant defense.

Main Methods:

Utilizing fluorescent protein fusions for cellular tagging.
Employing laser-based confocal microscopy for high-resolution live imaging.
Comparing dynamic imaging with previous static electron microscopy techniques.

Main Results:

Advanced imaging revealed dynamic cellular trafficking and reorganization during plant-pathogen encounters.
Fluorescent protein tags and confocal microscopy enabled unprecedented visualization of defense processes.
New questions arose regarding the cellular response to attempted infection.

Conclusions:

Modern imaging technologies have revolutionized the study of plant-microbe interactions.
These techniques provide dynamic insights into plant defense and pathogenicity.
Research may uncover fundamental mechanisms of subcellular trafficking and protein targeting in plants.