|SuperSet||Prokaryote, Eubacteria Glidng Bacteria|
Celled, rod shaped Capnocytophaga,
pinensis , Cytophaga, Flexibacter,
|Morphology||Organisms exist in colourless filaments, which contain cells with diameters of 1 to about 3 um and lengths of 1-12 um; cells may be clearly delimited and barrel-shaped or may be undelimited and cylindrical (similar to Beggiatoa). Filaments may contain from 1 to > 40 cells|
|Motility||Motile by gliding; no locomotor organelles known.|
|Specialized structures||Cell division is by transverse binary fission; dispersion is by fragmentation of filaments or by sacrificial cell death and necridia formation in species similar to the beggiatoas. Resting stages are now known.Sheaths or holdfasts are not produced|
|Oxygen||Aerobic to microaerophilic. Metabolism is respiratory with molecular oxygen as sole known terminal electron acceptor.|
|Requirements||Nutritional requirements vary among species, with the simplest organic requirement being acetate as sole carbon and energy sources and with the more complex requirements being for groups of amino acids|
|Products||Sulfur inclusions are not formed from hydrogen sulfide or thiosulfate|
|Unique features||Cell walls of V.
stercoraria are composed of the amino acids alanine,
glutamate, and diaminopimelic acid with approximate molar
ratios of 2:1:1
The larger Vitreoscilla species show similarities to certain Beggiatoa strains, with the exception to their inability to deposit sulfur when exposed to hydrogen sulfide.
|G+C Mol %||42 (Tm, Bd) - 63(Tm)|
|First citation||Pringsheim,E.G. 1949 The relationship between bacteria and the Myxophyceae Bacteriol Rev 13: 47-91 (see page 70)|
|Bergey's Systematatic||p 2124 Wm R. Strohl|
|Bergey's Determinative||p 499|
|References||Pringsheim, E.G. 1951
The Vitreoscillaceae: a family of colourless, gliding,
filamentous organisms J.Gen Microbiol 5: 124-149
1949 Iron bacteria. Biol Rev. Cambridge Philos. Soc.