Natronolimnobius

Natronolimnobius is a genus of bacteria from the family of Nitriliruptoraceae. The genus was first described in 2005, and currently includes two species: Natronolimnobius baerhuensis and Natronolimnobius innermongolicus. These bacteria are halophilic, meaning they thrive in environments with high salt concentrations, and alkaliphilic, meaning they prefer alkaline or high pH environments.

Characteristics

The bacteria of the Natronolimnobius genus are Gram-negative, non-spore-forming rods. They are aerobic, meaning they require oxygen to grow, and they are chemoorganotrophic, meaning they obtain their energy from organic compounds.

The optimal growth conditions for Natronolimnobius species are at a pH of 9.5-10.0 and a salt concentration of 10-15%. They can tolerate a wide range of temperatures, with optimal growth observed at 37-40°C.

Habitat

Natronolimnobius species have been isolated from alkaline, saline lakes in Inner Mongolia, China. These environments are characterized by high salt concentrations and alkaline pH, which are ideal conditions for the growth of these bacteria.

Metabolism

Natronolimnobius species are capable of oxidative phosphorylation, a metabolic pathway that uses oxygen to produce ATP, the energy currency of the cell. They can utilize a variety of organic compounds as energy sources, including sugars, amino acids, and organic acids.

Significance

The ability of Natronolimnobius species to thrive in extreme environments makes them of interest in the study of extremophiles. Furthermore, their unique metabolic capabilities may have potential applications in biotechnology and environmental remediation.

See also

• Extremophile
• Halophile
• Alkaliphile
• Nitriliruptoraceae