Geodermatophilus obscurus strain DSM 43162

Geodermatophilus obscurus strain DSM 43162 is a gram-negative, aerobic bacterium characterized by its filamentous cell arrangement and cocci shape. This strain is classified as a chemoorganotroph, indicating that it derives energy from organic compounds. It is found in the unique habitat of rock varnish in desert environments, which provides a specialized ecological niche. The bacterium's optimal growth temperature is 29°C, placing it within the mesophilic range. Notably, G. obscurus lacks mobility and does not possess flagella, which suggests that it relies on its environment for nutrient acquisition rather than active movement. The organism is free-living, indicating that it does not depend on a host for survival. With a single replicon, G. obscurus has a streamlined genomic structure that may contribute to its adaptability in the harsh conditions of its desert habitat. The presence of rock varnish, a coating found on rocks in arid regions, likely provides a microenvironment that supports the growth of this bacterium by offering moisture and nutrients. The specific adaptations of Geodermatophilus obscurus to its desert habitat highlight the ecological significance of microbial life in extreme environments. Understanding its metabolic capabilities and ecological relationships can provide insights into the resilience of life under harsh conditions and contribute to our knowledge of microbial diversity in desert ecosystems.