Flavobacterium johnsoniae
| Flavobacterium johnsoniae | ||||||||||||
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| Flavobacterium johnsoniae | ||||||||||||
| ( Stanier 1947) Bernardet et al. 1996 |
Flavobacterium johnsoniae is a type of bacteria . The genome was completely isolated, Flavobacterium johnsoniae was one of the first species within the Flavobacteriaceae family .
features
The species Flavobacterium johnsoniae is Gram-negative . The cells are rod-shaped, in the range 0.3–0.4 × 1.5–15 μm. In older cultures, spheroplasts are formed. Most of these strains are dependent on oxygen ( aerobic ), but there are also strains that can do without oxygen. They are able to grow through anaerobic respiration using nitrate as an electron acceptor. There are no flagella , but the bacterium can move by sliding ("gliding motility"), a feature that is often found in the Bacteroides division . Spores are not formed. NaCl values of 0 - 1 are tolerated. Growth takes place at temperatures between 10 and 30 ° C, best growth takes place at 25 - 30 ° C. The GC content in the DNA is 33 - 35.2.
Systematics
Flavobacterium johnsoniae belongs to the Flavobacteriaceae family , which in turn belongs to the Bacteroidetes class . It was first described in 1947, when it belonged to the genus Cytophaga . It was added to the current genus Flavobacterium by JF Bernardet and colleagues in 1996.
ecology
Flavobacterium johnsoniae is common in soil and fresh water. This species, like some others of the genus, is often present within soils in the rhizosphere of plant roots. Flavobacterium johnsoniae has also been implicated in fish diseases. In the genus Flavobacterium , several bacteria are pathogenic for fish, examples are F. columnare , F. hydatis , F. psychrophilum and F. succinicans .
etymology
The genus name Flavobacterium is based on the Latin word "Bacterium" (bacterium) and the Latin word "flavus", which means yellow. The latter refers to the colors of the colonies, which often show a pronounced yellow due to the flexirubin pigment ; Flavobacterium johnsoniae also contains these pigments. The species name F. johnsoniae was chosen in honor of the American microbiologist Delia E. Johnson . He studied bacteria that, like some of the Flavobacterium genus , slide along.
Individual evidence
- ↑ a b Martin Dworkin et al. (Ed.): The Prokaryotes. A Handbook of the Biology of Bacteria . Volume 7, Springer, New York 2006, ISBN 978-0-387-33493-6 .
- ↑ Michael Goodfellow et al. (Ed.): Bergey's Manual of Systematic Bacteriology . 2nd edition, Volume 5: The Bacteroidetes, Spirochaetes, Tenericutes (Mollicutes), Acidobacteria, Fibrobacteres, Fusobacteria, Dictyoglomi, Gemmatimonadetes, Lentisphaerae, Verrucomicrobia, Chlamydiae, and Planctomycetes . Springer, New York 2012, ISBN 978-0-387-95042-6 .
- ↑ Systematics according to JP Euzéby: List of Prokaryotic names with Standing in Nomenclature (LPSN) ( Memento of the original dated November 4, 2013 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. (As of May 1, 2015)
literature
- Michael Goodfellow et al. (Ed.): Bergey's Manual of Systematic Bacteriology . 2nd edition, Volume 5: The Bacteroidetes, Spirochaetes, Tenericutes (Mollicutes), Acidobacteria, Fibrobacteres, Fusobacteria, Dictyoglomi, Gemmatimonadetes, Lentisphaerae, Verrucomicrobia, Chlamydiae, and Planctomycetes . Springer, New York 2012, ISBN 978-0-387-95042-6 .
Web links
- JP Euzéby: List of Prokaryotic names with Standing in Nomenclature (LPSN) (as of April 22, 2015)