Halobacteroides halobius gen. nov., sp. nov., a Moderately Halophic Anaerobic Bacterium from the Bottom Sediments of the Dead Sea

Aharon Oren*, William G. Weisburg, Martin Kessel, Carl R. Woese

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

66 Scopus citations

Abstract

An anaerobic, long rod-shaped, motile, Gram-negative, non-sporulating bacterium wasisolated from Dead Sea sediment. It required NaCl concentrations between 1.4 and 2.8 mol/l, and optimal growth with doubling times of about 1 hour was found in 1.5-2.5 mol NaCl/l and 37-42 °C. Fermentation products on glucose were ethanol, acetate, hydrogen and carbon dioxide. Fermentable substrates included several mono- and oligosaccharides, starch and pyruvate. The Guanine plus Cytosine content of its DNA was 30.7 mol . Analysis of the oligonucleotides in a digest of its 16S rRNA showed that the isolate was an eubacterium, but was not a member of any of the major eubacterial subgroups defined to date. We propose to name it Halobacteroides halobius gen. nov., sp. nov., belonging to a new family, the Haloanaerobiaceae. The type strain is strain MD-1 (ATCC 35273).

Original languageAmerican English
Pages (from-to)58-70
Number of pages13
JournalSystematic and Applied Microbiology
Volume5
Issue number1
DOIs
StatePublished - 1984
Externally publishedYes

Keywords

  • 16S rR
  • Acetate
  • Anaerobic
  • Dead Sea
  • Ethanol
  • Haloanaerobiaceae
  • Halobacteroides gen. nov.
  • Halobacteroides halobius sp. nov.
  • Halophilic
  • PIPES
  • Piperazine-N,N′-bis (2-ethanesulfonic acid)

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