Living BeingsCompare species
Methanobrevibacter smithii
Methanobrevibacter smithii
Acropora millepora
Acropora millepora
Evidence from the profiles
Compare their characteristics
| Trait | Methanobrevibacter smithii | Acropora millepora |
|---|---|---|
| Physical traits | Small cells require microscopy and validated taxonomic methods for study. Closely related gut methanogens need careful strain-level discrimination. | Colonies form branching structures covered by small skeletal cups that house polyps. Colony color alone is insufficient for secure species identification. |
| Habitat and range | The oxygen-poor distal intestine provides a host-associated environment supplied with microbial fermentation products. | Shallow, well-lit marine reef environments support the coral and its photosynthetic partners. |
| Diet and nutrition | Hydrogen-consuming methanogenesis uses products released by other community members, contributing to methane formation. | Polyps capture small suspended food, while algal symbionts contribute photosynthetic products. |
| Behavior and activity | Surface glycans, adhesin-like proteins and nutrient competition help explain persistence in the intestinal environment. | Tentacles and mucus help the colony interact with surrounding seawater. Recognition mechanisms influence responses to microbes. |
| Reproduction and life cycle | Cell multiplication occurs within suitable anaerobic conditions. Genomic comparisons distinguish strains and newly separated related species. | Colonies grow by producing additional polyps. Sexual reproduction can release gametes that develop into settling larvae. |
| Geographic distribution | Human-derived isolates and genomic studies document host-associated occurrence. A person's carriage cannot be inferred from a species profile. | The species occurs in the Indo-Pacific reef region. Species-level locality records should accompany detailed range mapping. |
| Ecological role | Removal of fermentation products can affect interactions among members of the gut microbial community. | Skeletal growth contributes reef structure and habitat. Symbiotic interactions are central to energy supply and colony health. |
| Distinctive adaptations | The genome study identified surface glycans resembling those in the gut mucosa and regulated adhesin-like proteins. It also examined consumption of products made by carbohydrate-fermenting bacteria. These results explain potential mechanisms of persistence and microbial interaction; observations in experimental mice do not establish a health outcome for every human carrying this archaeon. | A colonial body and partnerships with photosynthetic cells support growth in well-lit reef environments. |
| Conservation | Data unavailable | Thermal stress, bleaching and degradation of reef habitat are concerns. A source on molecular recognition does not establish a current Red List category. |
Classification
Shared ancestry
Closest shared taxon: cellular organisms.