Query: NC_008043:167108 Silicibacter sp. TM1040 mega plasmid, complete sequence
Lineage: Ruegeria; Ruegeria; Rhodobacteraceae; Rhodobacterales; Proteobacteria; Bacteria
General Information: This strain was isolated from a culture of the dinoflagellate Pfiesteria piscicida CCMP1830 which has been implicated in many large scale algal blooms resulting in increased mortality in fish. The bacteria are attached to the surface of the dinoflagellate and in some ways allow the dinoflagellate to grow as those lacking the bacteria die off. The bacterium also chemotaxes towards the dinoflagellate product DMSP (dimethylsulfoniopropionate) and metabolizes it. DMSP is a major source of sulfur in marine ecosystems and plays a role in the sulfur biogeochemical cycle. The implication is a tight association between these important dinoflagellates and this marine bacterium.
Subject: NC_013798:345339 Streptococcus gallolyticus UCN34, complete genome
Lineage: Streptococcus gallolyticus; Streptococcus; Streptococcaceae; Lactobacillales; Firmicutes; Bacteria
General Information: Isolated from a human case of endocarditis associated with colon cancer in Caen, France in 2001. Streptococci are non-motile, Gram-positive cocci with widely varying pathogenic potential that occur in pairs or chains. Streptococcus gallolyticus (strain UCN34, biotype I) is a commensal Gram-positive bacterium isolated from various habitats, including feces of many animals and from human clinical sources. S. gallolyticus is part of the rumen flora but also a cause of disease in ruminants as well as in birds (septicemia in pigeons, outbreaks in broiler flocks, or bovine mastitis). This is a tannin-degrading Streptococcus species. Strains have been isolated from various habitats, including feces of many animals and from human clinical sources. This organism can be a cause of infectious endocarditis.