Deinococcus radiodurans R1 = ATCC 13939 = DSM 20539

Deinococcus radiodurans R1, also known by its ATCC and DSM designations (ATCC 13939, DSM 20539), is a notable microaerophilic bacterium characterized by its remarkable resilience to extreme environmental conditions, particularly ionizing radiation and desiccation. This organism possesses a single replicon, which is essential for its genetic stability and integrity, allowing it to withstand and recover from DNA damage that would be lethal to many other organisms. D. radiodurans R1 is motile, as it possesses flagella, which contributes to its ability to navigate its environment, potentially aiding in colonization and nutrient acquisition. Its microaerophilic nature indicates that it thrives in environments with low oxygen levels, which can be typical of certain terrestrial or aquatic habitats. The genome of D. radiodurans R1 is accessible under the accession number NC_001263.1, providing a resource for further research into its genetic makeup and mechanisms of resistance. Understanding the genetic and physiological attributes of this bacterium not only sheds light on its survival strategies but also has implications for bioremediation and biotechnology. The extreme resilience of D. radiodurans to harsh conditions makes it a valuable model organism for studying DNA repair mechanisms and could inform applications in areas such as waste management in radioactive environments. Overall, D. radiodurans R1 exemplifies the incredible adaptability of microorganisms to extreme ecological niches.