Thermoflexibacter ruber

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Thermoflexibacter ruber
Systematics
Domain : Bacteria
Department : Bacteroidetes
Class : Cytophagia
Order : Cytophagales
Genre : Thermoflexibacter
Type : Thermoflexibacter ruber
Scientific name
Thermoflexibacter ruber
( Lewin 1969) Hahnke et al. 2017

Thermoflexibacter ruber is a type of bacteria that belongs to the division of Bacteroidetes .

Appearance

Thermoflexibacter ruber forms long cell threads with a length of more than 50 µm. There are no flagella , but the bacterium can move by sliding ("gliding motility"). Spores are not formed. The gram test is negative. The colonies are colored red. The main carotenoid is flexixanthin . The catalase test is negative.

Growth and metabolism

Thermoflexibacter ruber is strictly aerobic and chemo-organotrophic . Metabolism is breathing . The highest temperature for growth is between 40 and 45 ° C. The bacterium does not tolerate salinity.

Systematics

Thermoflexibacter ruber belongs to the order of the Cytophagales , which in turn belongs to the class Cytophagia . The genus Thermoflexibacter was created in 2017, Thermoflexibacter ruber is the type species of the genus. An assignment to a family is still pending (as of June 2019). The basonym of the species, Flexibacter elegans , was originally placed in the family of the Cytophagaceae , which is also in the order of the Cytophagales. The species was first described in 1969 by Ralph A. Lewin . Due to recent genetic investigations of the species in the Bacteroidetes department , the original systematic allocation of many species to the Flexibacter genus was no longer tenable and the majority of the species were assigned to other genera.

etymology

The generic name Thermoflexibacter is derived from the Greek adjective “thermos” (hot) and the Latin adjective “flexus” (twisted) and the Greek word “baktron”, which means rod, and refers to the cell shape and to the Growth temperatures, the species still shows growth at 40 and 45 ° C. The species name T. ruber is derived from the Latin word "ruber" (red) and refers to the color of the colonies .

Individual evidence

  1. ↑ a b c JP Euzéby: List of Prokaryotic Names with Standing in Nomenclature - Thermoflexibacter (as of June 5, 2019)
  2. ↑ 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. 392-397 .
  3. ^ Richard L. Hahnke et al .: Genome-Based Taxonomic Classification of Bacteroidetes In: Frontiers in Microbiology . December 20, 2016 Link

literature

  • Jiri Hausler: Freshwater Flora of Central Europe, Vol. 20: Schizomycetes . Springer, 1982, ISBN 3-8274-2141-1 , pp. 152 .
  • 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. 392-397 .