Bacillus anthracis str. 'Ames Ancestor'

Bacillus anthracis str. 'Ames Ancestor' is a Gram-positive, rod-shaped bacterium that thrives in soil environments. It is classified as a chemoheterotroph, deriving energy from organic compounds, and exhibits facultative anaerobic respiration, allowing it to survive in both aerobic and anaerobic conditions. This organism is non-motile, characterized by the presence of flagella that may assist in its sporulation process. The optimal growth temperature for B. anthracis 'Ames Ancestor' is 37°C, placing it within the mesophilic temperature range. It possesses a single replicon and one membrane, indicative of its prokaryotic structure. This bacterium is notable for its pathogenicity, as it is known to cause anthrax, a serious infectious disease that can affect both animals and humans. B. anthracis is a free-living bacterium with the ability to form spores, which are resistant structures that enable it to endure harsh environmental conditions. The capacity for sporulation is a critical factor for its survival in soil, allowing it to remain viable for prolonged periods until conditions are favorable for germination. The ecological role of Bacillus anthracis in soil ecosystems is significant, as its sporulating ability contributes to the nutrient cycling processes within these habitats. Understanding the traits and behaviors of this bacterium aids in assessing its impact on environmental health and its potential risks to public health. Accessions for this strain include NC_007323.3.