Flectobacillus
| Flectobacillus | ||||||||||||
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| Scientific name | ||||||||||||
| Flectobacillus | ||||||||||||
| Larkin , Williams and Taylor 1977, corrected by Raj and Maloy 1990 |
Flectobacillus is a genus of bacteria in the family Cytophagaceae . The type species is Flectobacillus major . The generic name is derived from the Latin word "flecto" (to curve) and the Latin word "bacillus" (rod) and refers to the cell shape . The species occur in freshwater lakes and eutrophic ponds.
Appearance
The cells of the species are rod-shaped, curved to various degrees. The cells of Flectobacillus lacus and F. rhizosphaerae are straight rods. In other species, the shape is often like a horseshoe or like the letter C. An apparently ring-shaped cell can appear, with the two ends overlapping. Helical cells can also be seen in young colonies (24-48 hours). When the cultures are a little older, screw-like thread shapes sometimes appear, the length can be a few tens of micrometers. Rings are rarely formed here.
Growth and metabolism
These are chemo-organotrophic bacteria, they are strictly aerobic . A respiratory metabolism, i.e. breathing , takes place. The oxidase test is positive.
Systematics
The genus Flectobacillus belongs to the order Cytophagales . Some species have been converted, for example the species Flectobacillus marinus , which occurs in seawater, is no longer listed; it has been assigned to Cyclobacterium marinum . The genus consists of the following species:
- Flectobacillus lacus Hwang and Cho 2006
- Flectobacillus major (Gromov 1963) Larkin et al. 1977
- Flectobacillus rhizosphaerae Ramaprasad et al. 2015
- Flectobacillus roseus Sheu et al. 2009
Individual evidence
- ^ HD Raj, SR Maloy: Proposal of Cyclobacterium marinus gen.nov., Comb.nov. for a Marine Bacterium Previously Assigned to the Genus Flectobacillus . In: International Journal of Systematic and Evolutionary Microbiology (IJSEM) . tape 40 , No. 4, 1990, pp. 337-347 . Link: [1] ( Page no longer available , search in web archives ) Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice.
- ↑ Systematics according to JP Euzéby: List of Prokaryotic names with Standing in Nomenclature (LPSN) (Status: January 28, 2017)
literature
- Jiri Hausler: Freshwater Flora of Central Europe, Vol. 20: Schizomycetes . Springer, 1982, ISBN 978-3-8274-2141-8 , pp. 419 .
- War, NR; Ludwig, W .; Whitman, WB; Hedlund, BP; Paster, BJ; Staley, JT; Ward, N .; Brown, D .; Parte, A .: Bergey's Manual of Systematic Bacteriology. Volume 4: The Bacteroidetes, Spirochaetes, Tenericutes (Mollicutes), Acidobacteria, Fibrobacteres, Fusobacteria, Dictyoglomi, Gemmatimonadetes, Lentisphaerae, Verrucomicrobia, Chlamydiae, and Planctomycetes . Springer, 2010, ISBN 978-0-387-68572-4 , pp. 389-392 .