Living BeingsCompare species
Bacillus subtilis
Bacillus subtilis
Acropora millepora
Acropora millepora
Evidence from the profiles
Compare their characteristics
| Trait | Bacillus subtilis | Acropora millepora |
|---|---|---|
| Physical traits | Vegetative cells are rods that may occur in chains. An endospore is a differentiated structure formed within a cell. | Colonies form branching structures covered by small skeletal cups that house polyps. Colony color alone is insufficient for secure species identification. |
| Habitat and range | Soil-associated and plant-associated environments provide changing supplies of organic nutrients. Laboratory strains allow these responses to be studied in controlled conditions. | Shallow, well-lit marine reef environments support the coral and its photosynthetic partners. |
| Diet and nutrition | Organic compounds support growth, and secreted enzymes help make substrate resources available. | Polyps capture small suspended food, while algal symbionts contribute photosynthetic products. |
| Behavior and activity | Populations can develop distinct physiological states as conditions change. Nutrient limitation can initiate sporulation. | Tentacles and mucus help the colony interact with surrounding seawater. Recognition mechanisms influence responses to microbes. |
| Reproduction and life cycle | Growing vegetative cells can differentiate into resistant endospores. A growth-and-sporulation study found that cells differ in their probability and timing of entering that process. Sporulation is not an immediate population-wide switch, and one cell producing an endospore is a survival transition rather than an increase in cell number. | Colonies grow by producing additional polyps. Sexual reproduction can release gametes that develop into settling larvae. |
| Geographic distribution | Isolates and research cultures occur internationally. Strain provenance is more precise than a claim that every soil contains this species. | The species occurs in the Indo-Pacific reef region. Species-level locality records should accompany detailed range mapping. |
| Ecological role | Growth on organic material and interactions near plants place the bacterium within complex soil communities. | Skeletal growth contributes reef structure and habitat. Symbiotic interactions are central to energy supply and colony health. |
| Distinctive adaptations | Endospore formation separates survival through adverse conditions from rapid vegetative multiplication. | 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.