Query: NC_019962:217798 Natrinema pellirubrum DSM 15624, complete genome
Lineage: Natrinema pellirubrum; Natrinema; Halobacteriaceae; Halobacteriales; Euryarchaeota; Archaea
General Information: Country: Italy; Isolation: Red heat in salted hides (spoiled fish); Temp: Mesophile. Natrinema pellirubrum, formerly Halobacterium salinarium is a halophilic archaea requiring at least 1.7 M NaCl for growth and able to grow at salt concentrations of up to 4.3 M.
Subject: 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.