Methanobrevibacter smithii CAG:186 str. MGS:186

Methanobrevibacter smithii CAG:186 str. MGS:186 is a Gram-positive, rod-shaped archaeon that typically forms pairs or chains. This strain thrives optimally at a temperature of 37.0°C and is classified as a lithotrophic organism, utilizing inorganic compounds as its energy source. Methanobrevibacter smithii is an obligate anaerobe, indicating that it requires an oxygen-free environment for growth and metabolism. This archaeon is known to inhabit a variety of environments, suggesting its adaptability to diverse ecological niches. While specific habitat details are not provided, the multiple environments associated with M. smithii may include anaerobic sites such as the gastrointestinal tracts of various animals, where it plays a role in methane production through the fermentation of substrates. Interestingly, the ability of Methanobrevibacter smithii to form pairs and chains may enhance its stability in dynamic environments and facilitate metabolic interactions with other microbial species present in the same habitat. This unique arrangement could be significant for its survival and function in complex microbial communities, particularly in the context of symbiotic relationships within the gut microbiome, where it contributes to the overall metabolic processes and energy balance.