Cupriavidus metallidurans
| NBRC No. | NBRC 102507 | ||
|---|---|---|---|
| Scientific Name of this Strain | Cupriavidus metallidurans (Goris et al. 2001) Vandamme and Coenye 2004 | ||
| Synonymous Name |
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| Type Strain | type | ||
| Accepted Date | 2007/01/24 | ||
| Isolated Year | |||
| Deposited Year | 2006 | ||
| History | IAM 14785 <- H. Kim, CH34 | ||
| Other Culture Collection No. | IAM 14785=DSM 2839=ATCC 43123=CCUG 38400=KCTC 12956=CCUG 13724=CIP 107179=LMG 1195=JCM 21315 | ||
| Other No. | CH34 | ||
| Rehydration Fluid | 702 | ||
| Medium | 802 | ||
| Cultivation Temp. | 25 C | ||
| Oxygen Relationship | |||
| Source of Isolation | Zn decantation tank | ||
| Locality of Source | |||
| Country of Origin | Belgium | ||
| Biosafety Level | |||
| Applications | |||
| Mating Type | |||
| Genetic Marker | |||
| Plant Quarantine No. | |||
| Animal Quarantine No. | |||
| Herbarium No. | |||
| Restriction | |||
| Comment | Former name: Ralstonia metalophila. | ||
| References | 4074,4075,4832 | ||
| Sequences | 16S rDNA | ||
| Shipping as | Glass ampoule (L-dried) |
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.
The bacteria Cupriavidus metallidurans is able to convert gold chlroride—a toxic chemical liquid into 99.9% pure gold.
- Its genome has been fully sequenced (preliminary, unnotated sequence data were obtained from the DOE Joint Genome Institute). Genome Information: PRJDB279 (NCBI BioProject).
- It is not pathogenic, therefore, models of the cell can also be tested in artificial environments similar to its natural habitats.
- It is related to the plant pathogen Ralstonia solanacearum.
- It is of ecological importance since related bacteria are predominant in mesophilic heavy metal-contaminated environments.
- It is of industrial importance and used for heavy metal remediation and sensing.
- It is an aerobic chemolithoautotroph, facultatively able to grow in a mineral salts medium in the presence of H2, O2, and CO2 without an organic carbon source. The energy-providing subsystem of the cell under these conditions is composed only of the hydrogenase, the respiratory chain, and the F1F0-ATPase. This keeps this subsystem simple and clearly separated from the anabolic subsystems that starts with the Calvin cycle for CO2-fixation.
- It is able to degrade xenobiotics even in the presence of high heavy metal concentrations.
- Finally, strain CH34 is adapted to the outlined harsh conditions by a multitude of heavy-metal resistance systems that are encoded by the two indigenous megaplasmids pMOL28 and pMOL30 on the bacterial chromosome(s).
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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