Cyclobacteriaceae
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| Nedashkovskaya & Ludwig 2012 |
The Cyclobacteriaceae are a family of Gram-negative bacteria . The type genus is Cyclobacterium Raj and Maloy 1990 . The name is derived from the Greek word kyklos ("circle") and refers to the appearance of these bacteria, the cells can be horseshoe-shaped or ring-shaped. Most species come from seawater , marine sediments, seaweed or various marine animals, for example Echinicola pacifica was isolated from a species of sea urchin , Strongylocentrotus intermedius .
Appearance
The gram test turns out negative. These are rod-shaped cells, some species also form horseshoe-shaped or ring-like cells. The size is 0.7 × 0.3 - 10 µm . They do not form flagella and are usually not motile, but some can glide. These include B. Species of Echinicola . They are aerobic , the metabolism is mostly breathing , some species use fermentation . The colonies are colored pink, red, or orange. The oxidase test and the catalase test are positive.
metabolism
The bacteria are chemoorganotrophic . The metabolic type is usually breathing. Some, like Aquiflexum and Belliella, can reduce nitrate to nitrite . Echinicola pacifica, which is isolated from brackish water, ferments D-glucose .
Systematics
The following genera are added to the family:
- Algoriphagus Bowman et al. 2003
- Aquiflexum Brettar et al. 2004
- Belliella Brettar, et al. 2004
- Cecembia Anil Kumar et al. 2012
- Cyclobacterium Raj and Maloy 1990
- Echinicola Nedashkovskaya et al. 2006
- Fontibacter Kämper et al. 2010
- Indibacter Anil Kumar et al. 2010
- Mongoliicoccus Liu et al. 2012
- Mongoliitalea Yang et al. 2012
- Nitritalea Anil Kumar et al. 2010
- Shivajiella Anil Kumar et al. 2013
Individual evidence
- ↑ Systematics according to JP Euzéby: List of Prokaryotic names with Standing in Nomenclature (LPSN) ( Memento of the original from April 27, 2012 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 7, 2013)
literature
- 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. 423-441 .