Desulfonatronobacter

Desulfonatronobacter is a genus of bacteria from the family of Desulfohalobiaceae. The bacteria in this genus are known for their unique metabolic capabilities, particularly their ability to reduce sulfate to sulfide. This process is known as sulfate reduction, and it plays a crucial role in the global sulfur cycle.

Characteristics

The bacteria in the genus Desulfonatronobacter are Gram-negative, rod-shaped, and motile. They are anaerobic, meaning they can survive in environments with little to no oxygen. They are also halophilic, which means they thrive in high-salt environments.

Metabolism

Desulfonatronobacter bacteria are known for their ability to reduce sulfate to sulfide, a process known as sulfate reduction. This process is a type of anaerobic respiration, which allows these bacteria to survive in environments with little to no oxygen. In addition to sulfate, these bacteria can also use other sulfur-containing compounds as electron acceptors, including sulfite and thiosulfate.

Ecological Role

Desulfonatronobacter bacteria play a crucial role in the global sulfur cycle. By reducing sulfate to sulfide, they help to recycle sulfur in the environment. This process can also contribute to the formation of sulfide minerals, which are important resources for various industries.

Genus Members

The genus Desulfonatronobacter currently includes two recognized species: Desulfonatronobacter acidivorans and Desulfonatronobacter thiodismutans. Both species were isolated from soda lakes in Siberia, which are known for their high salt and alkaline conditions.

See Also

• Desulfohalobiaceae
• Sulfate reduction
• Anaerobic respiration
• Sulfide minerals