Rikenellaceae

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Rikenellaceae
Systematics
Classification : Creature
Domain : Bacteria (bacteria)
Department : Bacteroidetes
Class : Bacteroidia
Order : Bacteroidales
Family : Rikenellaceae
Scientific name
Rikenellaceae
Krieg et al. 2012

The Rikenellaceae are a family of bacteria . The type genus is Rikenella . It is named after the Riken Institute in Japan.

Appearance

The cells are rod-shaped . You are straight or, z. B. Alistipes , slightly curved. Spores are not formed. The size of Alistipes is in the range of 0.2 to 0.9 µm in diameter and 0.5 to 4 µm in length, for Anaerocella 0.5 to 0.6 µm in width and 1.5 to 2.5 µm in Length.

Growth and metabolism

All species are anaerobic . The metabolism takes place via fermentation and is chemo-organotrophic . Some products of the fermentation of glucose from Rikenella are propionic acid , succinyl acid (succinic acid), acetic acid and small amounts of alcohols , from Alistipes succinyl acid and small amounts of acetic acid. Anaerocella produces isobutanoic acid , among other things .

Occurrence

Rikenella was isolated in the feces of chickens and calves , and alistipes from the intestines of humans and various animals.

Systematics

The family of the Rikenellaceae is placed in the order Bacteroidales in the department of Bacteroidetes . Some genera:

swell

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. 49-51 .

Individual evidence

  1. ^ A b Jean Euzéby, Aidan C. Parte: Family Rikenellaceae. In: List of Prokaryotic names with Standing in Nomenclature ( LPSN ). Retrieved September 26, 2018 .
  2. ↑ a b Kunihiro Abe, Atsuko Ueki, Yoshimi Ohtaki, Nobuo Kaku, Kazuya Watanabe and Katsuji Ueki .: Anaerocella delicata gen. Nov., Sp. nov., a strictly anaerobic bacterium in the phylum Bacteroidetes isolated from a methanogenic reactor of cattle farms . In: The Journal of General and Applied Microbiology . 58, No. 6, 2012, pp. 405-512.