Flexibacter occasionally present in heavily loaded activated sludge. Proper motion and in contrast to Beggiatoa lack of sulphur deposits is typical.
Filament position: | free in aqueous phase |
Branching: | none |
Movement: | gliding |
Growth habit: | straight / slightly curved |
Aufwuchs: | absent |
Constrictions: | variable |
Sheath: | absent |
Transverse walls: | not clearly visible |
Cell form: | not always identifiable |
Length of filaments: | < 200 µm |
Filament diameter: | 0.7 – 1.0 µm |
Gram staining: | negative |
Neisser staining: | negative |