Hydrogenophilaceae

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Hydrogenophilaceae
Systematics
Classification : Creature
Domain : Bacteria (bacteria)
Department : Proteobacteria
Class : Hydrogenophilalia
Order : Hydrogenophilales
Family : Hydrogenophilaceae
Scientific name of the  class
Hydrogenophilalia
Boden et al. 2017
Scientific name of the  order
Hydrogenophilales
Garrity et al. 2006
Scientific name of the  family
Hydrogenophilaceae
Garrity et al. 2006

The Hydrogenophilaceae are a family of Gram-negative bacteria within the Proteobacteria . It is the only family of the class of the Hydrogenophilalia and is here placed in the order Hydrogenophilales .

features

The cells of bacteria of the genus Hydrogenophilus are rod-shaped , usually 2 to 3  µm long and 0.5 µm in diameter. They grow at around 50 ° C and are aerobic . They are to be labeled as facultative chemolithoautotrophic (compare material and energy change ), that is, they are able to extract energy from inorganic materials and use inorganic compounds as a carbon source. So they can get their energy from the oxidation of hydrogen ( oxyhydrogen reaction ). The generic name also refers to this, Latin hydrogenium 'water producer' (refers to the element hydrogen) and ancient Greek φίλος phílos , German 'loving' , meaning 'hydrogen-loving'. They then use carbon dioxide as the carbon source .

Representatives of the genus Tepidiphilus are also moderately thermophilic , for example Tepidiphilus margaritifer was isolated from a digester operated at 60 ° C for the aftertreatment of aerobically generated sewage sludge . They are rod-shaped bacteria that can grow under anaerobic conditions and use nitrate as an electron acceptor , compare denitrification . As reserve material will be in the cell polyhydroxybutyric - granules embedded.

Systematics

The class Hydrogenophilalia was founded in 2017 by Boden et al. suggested, associated with it was the assignment of the genus Thiobacillus (formerly in the order Hydrogenophilales) to the order Nitrosomonadales . Thus the order Hydrogenophilales is monotypical with the family Hydrogenophilaceae.

The following genera are summarized in the family of Hydrogenophilaceae (as of 2020):

Petrobacter Bonilla Salinas et al. 2004 is the heterotypic synonym of Tepidiphilus Manaia et al. 2003.

Individual evidence

  1. a b Nobuhiro R. Hayashi, Tatsuya Ishida, Akira Yokota, Tohru Kodama, Yasuo Igarashi: Hydrogenophilus thermoluteolus gen. Nov., Sp. nov., a thermophilic, facultatively chemolithoautotrophic, hydrogen-oxidizing bacterium . In: International Journal of Systematic and Evolutionary Microbiology . tape 49 , no. 2 , April 1999, p. 783-786 , doi : 10.1099 / 00207713-49-2-783 .
  2. ^ Jean Euzéby, Aidan C. Parte: Genus Hydrogenophilus. In: List of Prokaryotic names with Standing in Nomenclature (LPSN). Retrieved February 21, 2020 .
  3. Célia M. Manaia, Balbina Nogales, Olga C. Nunes: Tepidiphilus margaritifer gen. Nov., Sp. nov., isolated from a thermophilic aerobic digester . In: International Journal of Systematic and Evolutionary Microbiology . tape 53 , no. 5 , September 2003, p. 1405-1410 , doi : 10.1099 / ijs.0.02538-0 .
  4. Rich Boden, Lee P. Hutt, Alex W. Rae: Reclassification of Thiobacillus aquaesulis (Wood & Kelly, 1995) as Annwoodia aquaesulis gen. Nov., Comb. nov., transfer of Thiobacillus (Beijerinck, 1904) from the Hydrogenophilales to the Nitrosomonadales, proposal of Hydrogenophilalia class. nov. within the 'Proteobacteria', and four new families within the orders Nitrosomonadales and Rhodocyclales . In: International Journal of Systematic and Evolutionary Microbiology . tape 67 , no. 5 , May 2017, p. 1191-1295 , doi : 10.1099 / ijsem.0.001927 .
  5. Jean Euzéby, Aidan C. Part: Hydrogenophilaceae. In: List of Prokaryotic names with Standing in Nomenclature (LPSN). Retrieved February 21, 2020 .
  6. ^ Jean Euzéby, Aidan C. Parte: Genus Tepidiphilus. In: List of Prokaryotic names with Standing in Nomenclature (LPSN). Retrieved February 21, 2020 .