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High-Throughput Imaging of Bacillus subtilis.

Paula Montero Llopis¹, Ryan Stephansky¹, Xindan Wang²

¹MicRoN Core, Harvard Medical School, Boston, MA, USA.

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

|May 31, 2022

Summary

Researchers developed a high-throughput method to image Bacillus subtilis mutant libraries. This technique enables the cytological analysis of mutants to discover new genes involved in bacterial cell shape, division, and chromosome segregation.

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Area of Science:

Microbiology
Cell Biology
Genetics

Background:

Bacillus subtilis is a key model organism for studying fundamental cellular processes.
An extensive arrayed mutant library of B. subtilis is available for systematic analysis.
Understanding genes controlling cell shape, division, and chromosome segregation is crucial for bacterial development.

Purpose of the Study:

To develop and describe a high-throughput method for imaging arrayed Bacillus subtilis mutant libraries.
To enable the cytological screening of mutants for genes involved in essential cellular processes.

Main Methods:

Utilizing wide-field fluorescence microscopy for imaging.
Detailed protocols for growing the B. subtilis strain collection.
Methods for preparing slides with agarose pedestals for microscopy.

Keywords:

Arrayed mutant library Automated imaging Bacillus subtilis Fluorescence microscopy High-throughput imaging

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Procedures for image acquisition and subsequent analysis.

Main Results:

A robust high-throughput imaging method for B. subtilis mutant libraries was established.
The method facilitates efficient cytological analysis of numerous mutants.
Potential for identifying novel genes regulating cell shape, division, and chromosome segregation.

Conclusions:

The described high-throughput microscopy method is effective for large-scale mutant screening in Bacillus subtilis.
This approach accelerates the discovery of genes critical for bacterial cell biology.
It provides a valuable tool for advancing our understanding of bacterial development and genetics.