Acidithiobacillales

Order of bacteria

Acidithiobacillales is an order of bacteria within the class Gammaproteobacteria. This order is known for its role in the oxidation of iron and sulfur compounds, which is significant in both natural and industrial processes.

Characteristics

Members of the order Acidithiobacillales are typically acidophilic, meaning they thrive in acidic environments. They are also known for their ability to oxidize ferrous iron (Fe__) to ferric iron (Fe__) and to oxidize reduced sulfur compounds to sulfate. These metabolic capabilities make them important in the biogeochemical cycling of these elements.

Taxonomy

The order Acidithiobacillales includes several genera, with Acidithiobacillus being the most well-known. This genus includes species such as Acidithiobacillus ferrooxidans, which is extensively studied for its role in bioleaching and bioremediation.

Genera

• Acidithiobacillus
• Thermithiobacillus

Ecology

Acidithiobacillales bacteria are commonly found in acidic environments such as acid mine drainage, hot springs, and other geothermal areas. Their ability to oxidize iron and sulfur compounds allows them to survive and thrive in these harsh conditions.

Applications

The metabolic activities of Acidithiobacillales have significant industrial applications, particularly in the field of bioleaching. This process involves the extraction of metals from ores through the action of microorganisms, and Acidithiobacillus ferrooxidans is one of the key organisms used in this process.

Related pages

• Acidophiles
• Bioleaching
• Proteobacteria
• Gammaproteobacteria

Gallery

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  Acidithiobacillus ferrooxidans

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