Marinilabiliaceae

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

The Marinilabiliaceae are a family of bacteria . The type genus is Marinilabilia . The name is derived from the Latin adjective "marinus" (sea) and the Latin adjective "labilis" (sliding), it is a marine organism that moves by sliding.

Appearance

They are straight, very thin rods . Some are movable by sliding . The gram test is negative. There are strictly anaerobic species, which means that these species can only live in the complete absence of oxygen . Others are facultatively anaerobic, they tolerate oxygen. Some species are found in a high pH environment , they are alkaliphilic . These include, for example, Natronoflexus pectinivorans and Alkaliflexus imshenetskii . The optimal pH for Alkali Flexus is around 8.5. Growth occurs at pH values ​​from 7.5 to 10.2. The GC content of Marinilabilia salmonicolor is 37–41 mol%, of Anaerophaga thermohalophila 41.8 and Alkaliflexus 44.

Growth and metabolism

The metabolism is chemo-organotrophic . Some are fermentative , others use breathing for energy. The species Marinilabilia salmonicolor can use both metabolic pathways, fermentation and respiration. Products of fermentation of several types are u. a. Acetate and succinate . Some require sodium chloride (NaCl) for growth.

Occurrence

Some species have been isolated from the sea mud, e.g. B. Marinilabilia salmonicolor . The halophilic species Alkaliflexus imshenetskii occurs in the mud of a soda lake . Also Natronoflexus pectinivorans was within sediments found a soda lake.

Systematics

The family of the Marinilabiliaceae is placed in the order Bacteroidales in the department of Bacteroidetes . Below is a list of some of the genera:

The genus Labilibacter , which was previously listed here, is now a synonym for the genus introduced by Yang et al. described genus Saccharicrinis .

Individual evidence

  1. ^ A b D. Y. Sorokin, AN Panteleeva, TP Tourova, EN Kaparullina and G. Muyzer: Natronoflexus pectinivorans gen. Nov. sp. nov., an obligately anaerobic and alkaliphilic fermentative member of Bacteroidetes from soda lakes . In: Extremophiles . 15, No. 6, November 2011, pp. 691 - 696.
  2. ↑ Karin Denger, Rolf Warthmann, Wolfgang Ludwig, Bernhard Schink: Anaerophaga thermohalophila gen. Nov., Sp. nov., a moderately thermohalophilic, strictly anaerobic fermentative bacterium. International Journal of Systematic and Evolutionary Microbiology, 52, pp. 173-178, 2002
  3. ^ Jean Euzéby, Aidan C. Parte: Family Marinilabiliaceae. In: List of Prokaryotic names with Standing in Nomenclature ( LPSN ). Retrieved November 25, 2018 .
  4. ↑ LPSN

literature

  • NR Krieg, W. Ludwig, WB Whitman, BP Hedlund, BJ Paster, JT Staley, N. Ward, D. Brown, A. Parte :: 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. 49-54 .