Flavobacterium antarcticum

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Flavobacterium antarcticum
Systematics
Department : Bacteroidetes
Class : Flavobacteriia
Order : Flavobacteriales
Family : Flavobacteriaceae
Genre : Flavobacterium
Type : Flavobacterium antarcticum
Scientific name
Flavobacterium antarcticum
Yi et al. 2005

Flavobacterium antarcticum is a type of bacteria . It was isolated from the ground near King Sejong Station in Antarctica . The soil was heavily enriched with organic matter from penguins.

Appearance

The cells of Flavobacterium antarcticum are rod-shaped, in the range 0.3-0.4 × 0.5-1.3 µm. Couples are also rarely formed. There are no flagella . The bacterium is immobile, and there is no gliding motility . The sliding movement can be observed in many other species of the genus . In the first descriptions of the genus, Flavobacterium branchiophilum was described as the only bacterium in the genus that does not move smoothly. In the course of time, however, many other species have been described that are also not able to move with the help of a sliding movement, such as F. degerlachei and F. frigidarium

Growth and metabolism

The species Flavobacterium antarcticum is Gram-negative . There is no reduction in nitrate . NaCl values ​​of 0-4 are tolerated, best growth occurs in the absence of NaCl. Growth takes place at temperatures between 5 and 24 ° C, best growth takes place at 20 ° C. The oxidase test and the catalase test are both positive. With the exclusion of oxygen, only very weak growth takes place. The tolerated pH value is 6-10, with a value of 7 the strongest growth occurs. Spores are not formed. The G + C content of the DNA is 35.0%.

Systematics

Flavobacterium antarcticum belongs to the family of Flavobacteriaceae , which in turn belongs to the class Bacteroidetes . It was first described in 2005.

etymology

The species name F. antarcticum refers to the place where it was found. 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 range from relatively pale to pronounced yellow; colonies of this species are also colored yellow.

Individual evidence

  1. ↑ 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 .
  2. ↑ George M. Garrity: Bergey's Manual of Systematic Bacteriology. Volume 5. The Bacteroidetes, Spirochaetes, Tenericutes (Mollicutes), Acidobacteria, Fibrobacteres, Fusobacteria, Dictyoglomi, Gemmatimonadetes, Lentisphaerae, Verrucomicrobia, Chlamydiae, and Planctomycetes . 4th edition. Springer, New York, ISBN 978-0-387-95042-6
  3. ^ Richard L. Hahnke et al .: Genome-Based Taxonomic Classification of Bacteroidetes In: Frontiers in Microbiology . December 20, 2016 Link
  4. ↑ Systematics according to: JP Euzéby: List of Prokaryotic names with Standing in Nomenclature (LPSN) - Flavobacterium (as of March 31, 2019)

literature

  • George M. Garrity: Bergey's Manual of Systematic Bacteriology. Volume 5. The Bacteroidetes, Spirochaetes, Tenericutes (Mollicutes), Acidobacteria, Fibrobacteres, Fusobacteria, Dictyoglomi, Gemmatimonadetes, Lentisphaerae, Verrucomicrobia, Chlamydiae, and Planctomycetes . 4th edition. Springer, New York, ISBN 978-0-387-95042-6

Web links