Query: NC_007481:3167434 Pseudoalteromonas haloplanktis TAC125 chromosome I, complete Lineage: Pseudoalteromonas haloplanktis; Pseudoalteromonas; Pseudoalteromonadaceae; Alteromonadales; Proteobacteria; Bacteria General Information: This strain was isolated from a sample of coastal sea water near a French Antarctic station. This organism is adapted to growth at low temperatures and reactive oxygen species by a number of putative dioxygenases and fatty acid desaturases amongst other proteins. The organism can grow optimally in salt concentrations of 1.5 to 3.5% NaCl.The genome consists of 2 chromosomes, one of which may replicate unidirectionally. Some interesting features of this genome include the lack of the nucleoid-associated gene hns, a lack of genes involved in molybdopterin metabolism, a lack of the cAMP-CAP complex, and a lack of the PEP-dependent PTS system.
- Sequence; - BLASTN hit (Low score = Light, High score = Dark) - hypothetical protein; - cds: hover for description
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.