Oscillatoria
Oscillatoria princeps
The Oscillatoria (vibrating algae) are a led as a generic group of cyanobacteria. The bacterial filaments are capable of slowly oscillating movement, to which the name refers.
Features
Oscillatoria always form unbranched filaments of a cell number. They usually occur in dense, up to several centimeters thick mats, rarely but individually or in small groups. Under extreme conditions, the threads on a thin, colorless and hard case, which is open at the outer end. The threads are straight or slightly wavy shape and usually between eight and 60 microns wide. Under favorable environmental conditions, the threads are mobile, they "oscillate ".
The cells are of short cylindrical to barrel -shaped, rarely disk-like shape, but always shorter than wide. The cells at the end of the threads are broadly rounded, sometimes little head shaped. Aerotope, so gas bubbles absent in the cells, but they have fine, blue-green, brownish or pink Grana with coiled thylakoids, which are usually irregularly distributed throughout the cell.
Distribution and ecology
The genus is distributed worldwide. The species grow on different substrates (mud, stone, sand) in fresh water, usually in shallow waters or riparian zones, for example, large lakes. Rarely they thrive on wet floors. Typical are the large mats submerged in the benthos develop, but later drift in large quantities on the surface.
System
The type species of Oscillatoria princeps Vaucher first described in 1892 is ex gamont. The genus includes the following species:
- Oscillatoria additica
- Oscillatoria anguiformis
- Oscillatoria anguina
- Oscillatoria annae
- Oscillatoria bharadwajae
- Oscillatoria bonnemaisonii
- Oscillatoria breviarticulata
- Oscillatoria corakiana
- Oscillatoria curviceps
- Oscillatoria depauperata
- Oscillatoria dzeman sensor
- Oscillatoria engelmanniana
- Oscillatoria euboeica
- Oscillatoria fracta
- Oscillatoria froelichii
- Oscillatoria funiformis
- Oscillatoria gardneriana
- Oscillatoria iltisii
- Oscillatoria Jenensis
- Oscillatoria kansuensis
- Oscillatoria kawamurae
- Oscillatoria koetlitzii
- Oscillatoria leavittae
- Oscillatoria leonardii
- Oscillatoria levis
- Oscillatoria limosa
- Oscillatoria lloydiana
- Oscillatoria ludoviciana
- Oscillatoria lutea
- Oscillatoria maharastrensis
- Oscillatoria major
- Oscillatoria maraaensis
- Oscillatoria margaritifera
- Oscillatoria meslinii
- Oscillatoria miniata
- Oscillatoria mitrae
- Oscillatoria nigro - viridis
- Oscillatoria nitida
- Oscillatoria obscura
- Oscillatoria obtusa
- Oscillatoria ornata
- Oscillatoria perornata
- Oscillatoria princeps
- Oscillatoria proboscidea
- Oscillatoria producta
- Oscillatoria pseudocurviceps
- Oscillatoria raytonensis
- Oscillatoria pulchra
- Oscillatoria Refrigens
- Oscillatoria rhamphoidea
- Oscillatoria rupicola
- Oscillatoria salina
- Oscillatoria sancta
- Oscillatoria serpentina
- Oscillatoria simplicissima
- Oscillatoria subbrevis
- Oscillatoria subcapitata
- Oscillatoria subfusca
- Oscillatoria subproboscidea
- Oscillatoria tenuis
- Oscillatoria transvaalensis
- Oscillatoria vizagapatensis
- Oscillatoria yamadae