Oscillatoria brevis
Oscillatoria brevis, is a species of the genus "Oscillatoria" first identified in 1892. It is a Blue-green filamentous cyanobacteria, which can be found in brackish and fresh waterways. "O. brevis" can also be isolated from soil. "Oscillatoria brevis" is a mesophile but can bear a temperature of -16 °C, and can perform photosynthesis at a temperature of 70 °C. It is a photoautotroph, containing Chlorophyll a and c-phycocyanin, but can preform anoxygenic photosynthesis by reducing sulfur. It is able to fix nitrogen, and can be cultured from soils. It along with other nitrogen fixing  cyanobacteria found in the soil have been found to positively correlate with soil richness and the microbe density. O. brevis has also been shown to be tolerant of some heavy metal ions namely copper, silver, zinc, and cadmium."Oscillatoria" is able to glide via microfibrils. the genus name "Oscillatoria" is in reference to look of oscillation when gliding. The species name, "brevis", is Latin for short or small, yet the microbe is 10 μM width and length varies in the genus from 5-70 μM. Metabolites. "Oscillatoria" brevis is identified as an cyanobacteria that produces Geosmin, a compound with a  heavy earthy smell, that corelates with chlorophyll production. Like many cyanobacteria "O. brevis" have lipopolysaccharides which can cause illness in humans and animals through ingestion or through an open wound. Other species in the "Oscillatoria" genus have been identified to have genes for producing cytotoxin, cylindrospermopsin, along with two neurotoxins, anatoxin-a and homoanatoxin-a.