Halobacterium salinarum

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Halobacterium salinarum
Systematics
Department : Euryarchaeota
Class : Halobacteria
Order : Halobacteriales
Family : Halobacteriaceae
Genre : Halobacterium
Type : Halobacterium salinarum
Scientific name
Halobacterium salinarum
corrig. ( Harrison & Kennedy 1922)

Elazari-Volcani 1957

Halobacterium salinarum is a halophilic rod-shaped archaeon belonging to the genus Halobacterium . It only grows at saline concentrations of 20% to 30%, which corresponds to the saturation concentration. It was firstisolatedon salted clipfish as an impurity. It is found naturally in salt pans , whichare colored characteristically redby carotenoids in the cells of H. salinarium . H. salinarium cellscan even survive in salt crystals. If the sodium chlorideconcentrationfalls below 1 molar , the proteins that have been adapted to high salt concentrations begin to denature . Living cells are mobile. When exposed to light, H. salinarium generates ATP through bacteriorhodopsin , which is used, among other things, for locomotion. A ship's propeller-shaped archaellum provides the propulsion.

Individual evidence

  1. ↑ MF Mescher and JL Strominger: Structural (shape-maintaining) role of the cell surface glycoprotein of Halobacterium salinarium . In: Proceedings of the National Academy of Sciences . tape 73 , no. 8 , 1976, ISSN  0027-8424 , pp. 2687-2691 , PMID 1066681 .
  2. ↑ a b Felicitas Pfeifer: The red haloarchaeon Halobacterium salinarum . In: Biology in Our Time . tape 47 , no. 6 , 2017, ISSN  1521-415X , p. 378–384 , doi : 10.1002 / biuz.201710633 .
  3. ↑ Streif S., Staudinger WF., Marwan W., Oesterhelt D .: Flagellar Rotation in the Archaeon Halobacterium salinarum depends on ATP . In: Journal of Molecular Biology . tape 384 , no. 1 , p. 1–8 , doi : 10.1016 / j.jmb.2008.08.057 .