Cyclobacteriaceae

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Cyclobacteriaceae
Systematics
Domain : Bacteria (bacteria)
Department : Bacteroidetes
Class : Cytophagia
Order : Cytophagales
Family : Cyclobacteriaceae
Scientific name
Cyclobacteriaceae
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:

Individual evidence

  1. 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) @1@ 2Template: Webachiv / IABot / www.bacterio.cict.fr

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 .

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