It is a gram positive thermophilic bacteria characterized by a inner cell membrane and a thick cell wall.
Bacillus stearothermophilus. Definition. noun. A rod-shaped, endospore-forming, Gram-positive bacterium that belongs to the division Firmicutes. Supplement. It is thermophile, and lives mostly in soil, hot springs, and ocean sediments. It can also cause spoilage in food products. Cell structure and metabolism. G. stearothermophilus contain endospores which are a highly resistant dormant form of the bacteria. The bacteria produce spores under harsh conditions when nutrient levels are low. The spore core is dehydrated (10-25% water content) making it very resistant to heat and chemicals. Since Geobacillus stearothermophilus is a Gram-positive bacteria, its cell wall has a thick peptidoglycan layer [3]. This peptidoglycan layer contains DAP, or meso-diaminopimelic acid, and has a substantial amount of teichoic acids bonded to muramic acid residues, which helps the cell wall during cell division [3]. Description and Significance: Geobacillus stearothermophilus (or Bacillus stearophilus) is a rod-shaped, Gram-positive, spore-forming bacterium, that is able to grow either singly or in chains. [9] The cell wall structures of this bacterium are consistent with features found on typical Gram-positive bacterium. Geobacillus stearothermophilus (formerly Bacillus stearothermophilus) is a thermophilic, aerobic bacterium, which produces heat-resistant spores. It forms biofilms attaching to stainless steel surfaces in dairy plants. Geobacillus stearothermophilus is a gram positive thermophilic (heat loving) bacteria characterized by a inner cell membrane and a thick cell wall. G. stearothermophilus is a rod shaped anaerob found in thermophilic habitats like thermal vents.
http://www.biology-online.org/dictionary/Bacillus_stearothermophilus https://microbewiki.kenyon.edu/index.php/Geobacillus_stearothermophilus https://microbewiki.kenyon.edu/index.php/Bacillus_stearothermophilus_NEUF2011 https://microbewiki.kenyon.edu/index.php/Bacillus_stearothermophilus_NEUF2011 http://www.sciencedirect.com/science/article/pii/B9780123847300000203 https://microbewiki.kenyon.edu/index.php/Geobacillus_stearothermophilus
what is g. stearothermophilus