Query: NC_017167:328752 Alicyclobacillus acidocaldarius subsp. acidocaldarius Tc-4-1 Lineage: Alicyclobacillus acidocaldarius; Alicyclobacillus; Alicyclobacillaceae; Bacillales; Firmicutes; Bacteria General Information: Alicyclobacillus acidocaldarius, formerly Bacillus acidocaldarius was first isolated from an acidic creek in Yellowston National Park and grows at a pH of 3.6. This organism is both thermophilic and acidophilic and produces heat and acid stable enzymes, such as amylase and esterase, which may be important in industry.
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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.