Query: NC_016510:2175000 Flavobacterium columnare ATCC 49512 chromosome, complete genome
Lineage: Flavobacterium columnare; Flavobacterium; Flavobacteriaceae; Flavobacteriales; Bacteroidetes; Bacteria
General Information: Isolated in 1987 from a skin lesion of a brown trout fry in France. Fish pathogen. Purified genomic DNA obtained from ATCC 49512 F. columnare is considered ubiquitous in the warmwater aquatic environment, and it is the causative agent of columnaris disease in fish. Columnaris disease is common throughout the world and infects most species of freshwater fish, including aquaculture species, wild fish populations, and ornamental fish.
Subject: NC_008044:1401814 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.