Query: NC_014216:1061265 Desulfurivibrio alkaliphilus AHT2 chromosome, complete genome
Lineage: Desulfurivibrio alkaliphilus; Desulfurivibrio; Desulfobulbaceae; Desulfobacterales; Proteobacteria; Bacteria
General Information: Isolation: Sediments from a highly alkaline saline; Country: Egypt; Temp: Mesophile. Desulfurivibrio alkaliphilus was isolated from sediment from a highly alkaline saline soda lake in Egypt. This organism is alkaliphilic and salt-tolerant.
Subject: NC_008044:136844 Silicibacter sp. TM1040, complete genome
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.