The Class Nitriliruptoria

Reference work entry

Abstract

The Nitriliruptoria line of descent is one of the deeply branching actinobacterial lineages, containing the orders Nitriliruptorales and Euzebyales. Each of them is defined by a single family, genus, and species, respectively: within Nitriliruptoraceae, it is the genus Nitriliruptor with Nitriliruptor alkaliphilus (Sorokin et al. 2009) and within Euzebyaceae, it is Euzebya with Euzebya tangerina (Kurahashi et al. 2010). The higher classification as a subclass Nitriliruptoridae, and recently as a class Nitriliruptoria, followed the description of Euzebya tangerina and the notion that Nitriliruptorales and Euzebyales are phylogenetic neighbors, sharing a common origin. Nitriliruptor alkaliphilus has been isolated from soda lake sediments of the Kulunda Steppe (Altai, Russia). The Gram-positive type strain ANL-iso2T is the only known alkaliphilic bacterium to degrade isobutyronitrile [iBN, (CH3)2CHCN] and utilizes it as a sole source of energy, carbon, and nitrogen. Biodegradation is via the nitrile hydratase/amidase system. Euzebya tangerina was isolated from abdominal epidermidis of a sea cucumber, Holothuria edulis. In addition to the type strains, the lineage contains several unclassified isolates and hitherto uncultured strains from sources different to those of the type strains.

Keywords

Nitrile Hydratase Kulunda Steppe Alkaline Saline Soil Nucleic Acid Database Strain F10T 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgment

Parts of this chapter have been prepared under the EMbaRC project (EU Seventh Framework Programme Research Infrastructures [Infra-2—8-1.1.2.9: Biological Resources Centres (BRCs) for Microorganisms, grant Agreement No: FP7-228310) to support science in BRCs.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  1. 1.Leibniz Institute DSMZ-German Collection of Microorganisms and Cell CulturesBraunschweigGermany
  2. 2.Biocatalysis Group, Department of BiotechnologyDelft University of TechnologyDelftThe Netherlands

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