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Updated: Feb 13, 2026
09:30
Author Spotlight: Microbial Control and Monitoring Strategies for Cleanroom Environments and Cellular Therapies
Published on: March 17, 2023
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An ensemble binning approach to identify functional diversity in cleanroom environments
Michael C Macey1, Alexander Mahnert2, Ben P Stephens1
1AstrobiologyOU, School of Environment, Earth and Ecosystem Sciences, The Open University, Milton Keynes, England, UK.
Summary
Microbes in cleanrooms can survive sterilization and adapt to cleaning agents. Ensemble binning reveals their functional diversity, crucial for refining planetary protection strategies in space exploration.
Area of Science:
- Microbiology
- Astrobiology
- Genomics
Background:
- Cleanroom environments require strict sterilization to prevent microbial contamination.
- Persistent, tolerant microbes in cleanrooms pose risks to planetary protection.
- Understanding cleanroom microbiomes is vital for sustainable space exploration.
Purpose of the Study:
- To investigate the functional diversity of microbes within NASA cleanroom environments.
- To identify adaptive strategies of cleanroom-associated microbial communities.
- To assess the potential risks posed by persistent microbes to planetary protection.
Main Methods:
- Utilized an ensemble binning approach integrating multiple metagenome binning programs.
- Analyzed published metagenomic datasets from NASA cleanroom environments.
- Generated and functionally analyzed 26 high-quality metagenome-assembled genomes (MAGs).
Main Results:
- Generated 26 medium-to-high quality MAGs from six bacterial phyla.
- Identified metabolic pathways for degrading common cleaning agents, suggesting utilization as carbon sources.
- Revealed diverse polyextremophilic traits, including tolerance to salinity, temperature, and alkalinity.
Conclusions:
- Ensemble binning is effective for uncovering functional diversity in cleanroom microbiomes.
- Cleanroom microbes exhibit adaptive strategies, including tolerance to harsh conditions and cleaning agents.
- Findings provide critical insights for enhancing planetary protection protocols for space exploration.
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