What Do 26 New Bacterial Species Discovered in NASA Cleanrooms Reveal About Space Survival?

Synopsis
An international collaboration of scientists has identified 26 novel bacterial species thriving in NASA cleanrooms, revealing potential insights into microbial resilience in space. This groundbreaking study emphasizes the importance of contamination control during space missions while exploring the applications of these extremophiles in biotechnology.
Key Takeaways
- 26 novel bacterial species identified in NASA cleanrooms.
- Research emphasizes contamination control during space missions.
- Cleanrooms maintain low levels of dust and microorganisms.
- Identified species show resilience to extreme space-like conditions.
- Potential applications in biotechnology and medicine.
New Delhi, May 13 (NationPress) An international team of researchers from India, Saudi Arabia, and the US has uncovered 26 previously unknown bacterial species thriving within cleanrooms linked to NASA space missions.
The findings, published in the journal Microbiome, emphasize the necessity of stringent contamination control to avert accidental microbial transfer during space missions.
Cleanrooms are meticulously designed environments that ensure extremely low levels of dust and microorganisms. These facilities are where spacecraft are meticulously assembled.
These newly identified species harbor genetic characteristics that enable them to withstand extreme conditions, akin to those found in space, potentially offering insights into survival in such environments and applications in biotechnology, according to the research team.
Although these controlled settings feature carefully managed airflow, temperature, and humidity that typically deter microbial survival, some microbes known as extremophiles flourish in these conditions.
“Our investigation focused on assessing the potential risks of extremophiles being transferred during space missions and identifying which microorganisms could endure the severe environments of space,” stated lead researcher Professor Alexandre Rosado from King Abdullah University of Science and Technology (KAUST).
“This research is crucial for monitoring microbial contamination risks and preventing unintended colonization of other planets,” Rosado added.
In the study, the scientists conducted a thorough analysis of microorganisms found in NASA cleanrooms during the Phoenix mission—a NASA-led initiative that deployed a lander to Mars in 2007.
Throughout the Phoenix spacecraft mission, the genomes of 215 bacterial isolates were sequenced, leading to the identification of 53 strains from 26 novel species based on genome-related metrics.
The researchers discovered that numerous new species contained genes providing them with resilience against decontamination and radiation.
Some of these identified genes are linked to DNA repair, detoxifying harmful substances, and enhancing metabolism, all of which improve the survival chances of these species.
Additionally, these genetic traits could pave the way for innovative biotechnologies beneficial for food preservation and medical applications,” mentioned Junia Schultz, a postdoctoral fellow at KAUST.
Schultz remarked that the genes found in these newly discovered bacterial species could be engineered for various applications in medicine, food preservation, and other sectors.