Tags: Bacteria.
Thermoanaerobacter brockii formerly Thermoanaerobium brockii is a thermophilic anaerobic sporeforming bacteria. The bacteria was first isolated from Yellowstone National Park. The growth range for the organism is 35 to 80°C and pH 5.5-9.5 with optimal growth conditions at 65-70°C and pH 7.5. T. brockii stains Gram-positive. While originally thought to be non-sporeforming bacteria it was later discovered that the organism produced spores that can survive heating at 115°C for 80 min.