Ruminococcus callidus ATCC 27760

Ruminococcus callidus ATCC 27760 is a Gram-positive, coccobacillus-shaped microbe that thrives in mesophilic temperatures, classified as a chemoheterotroph, and can be found in various body sites of numerous species, including the gastrointestinal tracts of humans, animals, and insects. As an obligate anaerobe, this microbe requires a strict anaerobic environment to survive and grow, making it well-suited to the low-oxygen conditions found in the rumen and gut. The Gram-positive characteristic of R. callidus indicates that it has a thick peptidoglycan layer in its cell wall, which provides structural support and maintains the cell's shape. Its coccobacillus shape allows it to colonize and adhere to surfaces, facilitating its role in the breakdown and fermentation of complex organic matter. As a chemoheterotroph, R. callidus relies on the consumption of organic compounds for energy and growth, utilizing a range of substrates including cellulose, xylan, and other polysaccharides. This ability to degrade and ferment complex carbohydrates makes it a key player in the digestive processes of herbivores and omnivores. The mesophilic temperature preference of R. callidus allows it to thrive in temperatures between 20-45°C, making it well-suited to the warm and stable environments found in the gastrointestinal tracts of animals. Ruminococcus callidus has been found to produce a range of volatile fatty acids, including acetate, propionate, and butyrate, which are essential for the health and well-being of its host. Its ability to degrade lignocellulose and other recalcitrant compounds has also led to its investigation for use in biotechnological applications, such as the production of biofuels and other value-added products.