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Ralstonia eutrophus

Cupriavidus metallidurans
Scientific classification
Domain: Bacteria
Phylum: Proteobacteria
Class: Betaproteobacteria
Order: Burkholderiales
Family: Burkholderiaceae
Genus: Cupriavidus
Binomial name
Cupriavidus metallidurans
Goris et al. 2001; Van Damme and Coenye 2004

Cupriavidus metallidurans strain CH34, (renamed from Ralstonia metallidurans and previously known as Ralstonia eutropha and Alcaligenes eutrophus) is a nonspore-forming, Gram-negative bacterium which is adapted to survive several forms of heavy metal stress. Therefore, it is an ideal subject to study heavy metal disturbance of cellular processes. This bacterium shows a unique combination of advantages not present in this form in other bacteria.

Also it plays a vital role, together with the species Delftia acidovorans, in the formation of gold nuggets, by precipitating metallic gold from a solution of gold(III) chloride, a compound highly toxic to most other microorganisms.


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