Methanococcus vannielii SB

Methanococcus vannielii SB is a free-living, anaerobic, Gram-negative archaeon that thrives in aquatic environments. This organism exhibits a cocci shape and exists as single cells rather than in clusters. It is classified as a lithotroph, meaning it derives its energy from inorganic compounds, which is indicative of its role in the biogeochemical cycling of methane. M. vannielii SB has a mesophilic temperature range, with an optimal growth temperature of 30°C, making it well-suited for environments that are neither too hot nor too cold. The organism has a unique cellular structure characterized by a single membrane and one replicon, which are typical features of certain archaeal species. Notably, M. vannielii SB does not possess mobility, as it lacks flagella, and it does not undergo sporulation. Its non-pathogenic nature indicates that it does not cause disease in other organisms, allowing it to coexist within its aquatic habitat without posing threats to other microbial or multicellular life. The ecological role of Methanococcus vannielii SB is significant, as its lithotrophic metabolism contributes to the production of methane in anaerobic environments. This process is crucial for the global carbon cycle, particularly in aquatic ecosystems where organic matter decomposition occurs. By facilitating methane production, M. vannielii SB plays a vital role in maintaining ecological balance and supporting the energy flow within its habitat. The accession number for this organism is NC_009634.1.