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Updated: May 23, 2025

Gene Expression Profiling of Infecting Microbes Using a Digital Bar-coding Platform

Gene Expression Profiling of Infecting Microbes Using a Digital Bar-coding Platform

Published on: January 13, 2016

Advancing transcriptomic profiling of airborne bacteria.

Emily Antoinette Kraus¹, Bharath Prithiviraj^2,3, Mark Hernandez¹

¹Environmental Engineering, University of Colorado Boulder, Boulder, Colorado, USA.

Applied and Environmental Microbiology

|April 28, 2025

Summary

This summary is machine-generated.

Live airborne microbes (bioaerosols) are constantly inhaled, yet their activity remains poorly understood. Transcriptomic studies reveal microbial responses to aerosolization stress, offering insights into the aerobiome.

Keywords:

aerobiome airborne microorganisms bioaerosol mRNA transcriptomics

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Area of Science:

Aerobiology
Microbial Ecology
Molecular Biology

Background:

Bioaerosol research has identified airborne microbes but little is known about their real-time activity and metabolic responses to aerosolization.
Microbial messenger RNA (mRNA) provides a unique window into organismal responses to environmental stresses.
Understanding live bioaerosol activity is crucial for environmental health due to constant human exposure.

Purpose of the Study:

To review current transcriptomic knowledge on airborne bacterial activity under aerosolization stress.
To discuss potential artifacts in bioaerosol collection affecting mRNA fidelity.
To provide recommendations for improving gene expression studies of airborne microbes.

Main Methods:

Review of transcriptomic studies on airborne bacteria.
Analysis of mRNA preservation and fidelity during aerosolization and collection.
Discussion of experimental design for bioaerosol research.

Main Results:

Transcriptomic data reveal bacterial cellular activity and responses to environmental stresses during aerosolization.
Aerosolization and collection methods can introduce artifacts impacting mRNA integrity.
Specific experimental improvements are needed to accurately capture transcriptional activity.

Conclusions:

Transcriptome profiling is a valuable tool for assessing live bioaerosol activity and stress responses.
Optimizing bioaerosol collection and experimental conditions is essential for reliable gene expression data.
Further research can elucidate the role of the atmosphere as a microbial habitat or transient pathway.