The Hydrogenothermaceae family

Family

In human context, a family is a group of people affiliated by consanguinity, affinity, or co-residence. In most societies it is the principal institution for the socialization of children...

 are bacteria that live in harsh environmental settings. They have been found in hot springs, sulfur pools, thermal ocean vents. They are true bacteria

Bacteria

Bacteria are a large domain of prokaryotic microorganisms. Typically a few micrometres in length, bacteria have a wide range of shapes, ranging from spheres to rods and spirals...

 as opposed to the other inhabitants of extreme environments, the Archaea

Archaea

The Archaea are a group of single-celled microorganisms. A single individual or species from this domain is called an archaeon...

. An example occurrence of certain extremophile

Extremophile

An extremophile is an organism that thrives in physically or geochemically extreme conditions that are detrimental to most life on Earth. In contrast, organisms that live in more moderate environments may be termed mesophiles or neutrophiles...

s in this family are organisms of the genus Sulfurihydrogenibium that are capable of surviving in extremely hot environments such as Hverigerdi, Iceland.

Classification

Family Hydrogenothermaceae

• Hydrogenothermus Stöhr et al. 2001
  • Hydrogenothermus marinus Stöhr et al. 2001
• Venenivibrio Hetzer et al. 2008
  • Venenivibrio stagnispumantis Hetzer et al. 2008
• Persephonella Götz et al. 2002
  • P. guaymasensis Götz et al. 2002
  • P. hydrogeniphila Nakagawa et al. 2003
  • P. marina Götz et al. 2002
• Sulfurihydrogenibium Takai et al. 2003 emend. O'Neill et al. 2008
  • S. azorense Aguiar et al. 2004 emend. Nakagawa et al. 2005
  • S. kristjanssonii Flores et al. 2008
  • S. rodmanii O'Neill et al. 2008
  • S. subterraneum Takai et al. 2003 emend. Nakagawa et al. 2005
  • S. yellowstonense Nakagawa et al. 2005