| Description | Olsenella uli is a gram-negative, rod-shaped bacterium that thrives in mesophilic temperatures. It is classified as a chemoheterotroph, which means it derives its energy from organic compounds while also relying on them for carbon sources. This organism is predominantly found in the human oral cavity and gastrointestinal tract, making it an integral member of the complex microbial ecosystems present in these body sites. In more detail, the gram-negative characteristic of Olsenella uli indicates that it possesses a thin peptidoglycan layer surrounded by an outer membrane, which contains lipopolysaccharides. This structure influences its interactions with the immune system and other microbes. The rod shape contributes to its motility and ability to colonize various niches within the oral cavity and gut, where it can adhere to surfaces and form biofilms. As a mesophilic organism, Olsenella uli prefers moderate temperatures, typically thriving between 30°C and 37°C, which aligns well with the human body temperature, facilitating its survival in the human microbiome. Being a chemoheterotroph, it metabolizes a variety of organic substrates, including carbohydrates and proteins, which are abundant in the oral and digestive environments. Olsenella uli is categorized as an obligate anaerobe, meaning it cannot survive in the presence of oxygen. This lifestyle has led it to adapt to the anaerobic conditions typically found in deep dental plaque and the intestines. Its role in the human microbiome is significant, not only for digestion but also in maintaining oral health, as it can influence the balance of other bacterial species. This microbe has garnered research interest due to its potential implications in health and disease, particularly regarding its association with periodontal disease and its influence on gut health. The precise mechanisms by which Olsenella uli contributes to these conditions are still being investigated, highlighting its relevance in microbiome studies. |
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