Biology:Cupriavidus metallidurans

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Short description: Species of bacterium

Cupriavidus metallidurans
Scientific classification
Domain:
Bacteria
Phylum:
Pseudomonadota
Class:
Betaproteobacteria
Order:
Burkholderiales
Family:
Burkholderiaceae
Genus:
Cupriavidus
Binomial name
Cupriavidus metallidurans
(Goris et al. 2001) Vandamme and Coenye 2004
Type strain
ATCC 43123, aka CH34
Synonyms
  • Ralstonia metallidurans Goris et al. 2001[1]
  • Wautersia metallidurans (Goris et al. 2001) Vaneechoutte et al. 2004

(Not distinguished from Ralstonia eutropha until 2001.)[2]

Cupriavidus metallidurans is a non-spore-forming, Gram-negative bacterium which is adapted to survive several forms of heavy metal stress.[3][4][5]

As a model and industrial system

Cupriavidus metallidurans is a bacterial species that belongs to the same family as Ralstonia solanacearum, a plant pathogen. [6]

This species is of ecological and industrial importance, as its relatives dominate mesophilic environments contaminated with heavy metals.[2][7] C. metallidurans is used in the industrial sector for both heavy metal remediation and sensing.[4]

This aerobic chemolithoautotroph is capable of growing in a mineral salts environment with H2, O2, and CO2 without an organic carbon source.[8] Its energy-providing subsystem is composed of only the hydrogenase, the respiratory chain, and the F1F0-ATPase, which remain separate from the anabolic subsystems.

C. metallidurans can also degrade xenobiotics in conditions with high levels of heavy metals.[9]

Strain CH34 has adapted to these harsh conditions through multiple heavy-metal resistance systems, encoded by the two indigenous megaplasmids, pMOL28 and pMOL30, on its chromosome(s).[3][4][10]

Ecology

A scanning electron microscope image of a gold nugget, revealing bacterioform (bacteria-shaped) structures

C. metallidurans plays a vital role, together with Delftia acidovorans, in the formation of gold nuggets. It precipitates metallic gold from a solution of gold(III) chloride, a compound highly toxic to most other microorganisms.[11][12][13]

As a pathogen

A case of a 74 year old man infected with Cupriavidus metallidurans has been documented,[14] possibly raising concerns about the safety of using the bacteria for industrial purposes.

References

  1. ↑ Vandamme, P.; T. Coeyne (June 18, 2004). "Taxonomy of the genus Cupriavidus: a tale of lost and found". International Journal of Systematic and Evolutionary Microbiology 54 (Pt 6): 2285–2289. doi:10.1099/ijs.0.63247-0. PMID 15545472. 
  2. ↑ 2.0 2.1 Goris, J. (2001). "Classification of metal-resistant bacteria from industrial biotopes as Ralstonia campinensis sp. nov., Ralstonia metallidurans sp. nov. and Ralstonia basilensis Steinle et al. 1998 emend.". Int J Syst Evol Microbiol 51 (Pt 5): 1773–1782. doi:10.1099/00207713-51-5-1773. PMID 11594608. 
  3. ↑ 3.0 3.1 Nies, DH (1999). "Microbial heavy metal resistance.". Appl Microbiol Biotechnol 51 (6): 730–750. doi:10.1007/s002530051457. PMID 10422221. 
  4. ↑ 4.0 4.1 4.2 Nies, DH (2000). "Heavy metal resistant bacteria as extremophiles: molecular physiology and biotechnological use of Ralstonia spec. CH34". Extremophiles 4 (2): 77–82. doi:10.1007/s007920050140. PMID 10805561. 
  5. ↑ Ryan, Michael P.; Adley, Catherine C. (2011-09-01). "Specific PCR to identify the heavy-metal-resistant bacterium Cupriavidus metallidurans" (in en). Journal of Industrial Microbiology & Biotechnology 38 (9): 1613–1615. doi:10.1007/s10295-011-1011-y. ISSN 1476-5535. PMID 21720772. https://doi.org/10.1007/s10295-011-1011-y. 
  6. ↑ Salanoubat M. (2002). "Genome sequence of the plant pathogen Ralstonia solanacearum". Nature 415 (6871): 497–502. doi:10.1038/415497a. PMID 11823852. 
  7. ↑ Diels, L.; Q. Dong; D. van der Lelie; W. Baeyens; M. Mergeay (1995). "The czc operon of Alcaligenes eutrophus CH34: from resistance mechanism to the removal of heavy metals". Journal of Industrial Microbiology 14 (2): 142–153. doi:10.1007/BF01569896. PMID 7766206. 
  8. ↑ Mergeay, M.; D. Nies; H.G. Schlegel; J. Gerits; P. Charles; F. van Gijsegem (1985). "Alcaligenes eutrophus CH34 is a facultative chemolithotroph with plasmid-bound resistance to heavy metals". Journal of Bacteriology 162 (1): 328–334. doi:10.1128/JB.162.1.328-334.1985. PMID 3884593. 
  9. ↑ Springael, D.; L. Diels; L. Hooyberghs; S. Kreps; M. Mergeay (1993). "Construction and characterization of heavy metal resistant haloaromatic-degrading Alcaligenes eutrophus strains". Appl Environ Microbiol 59 (1): 334–339. doi:10.1128/AEM.59.1.334-339.1993. PMID 8439161. 
  10. ↑ Monchy, S.; M.A. Benotmane; P. Janssen; T. Vallaeys; S. Taghavi; D. van der Lelie; M. Mergeay (October 2007). "Plasmids pMOL28 and pMOL30 of Cupriavidus metallidurans are specialized in the maximal viable response to heavy metals". Journal of Bacteriology 189 (20): 7417–7425. doi:10.1128/JB.00375-07. PMID 17675385. 
  11. ↑ Reith, Frank; Stephen L. Rogers; D. C. McPhail; Daryl Webb (July 14, 2006). "Biomineralization of Gold: Biofilms on Bacterioform Gold". Science 313 (5784): 233–236. doi:10.1126/science.1125878. PMID 16840703. Bibcode: 2006Sci...313..233R. http://www.sciencemag.org/cgi/content/abstract/313/5784/233. 
  12. ↑ Superman-Strength Bacteria Produce 24-Karat Gold
  13. ↑ The bacteria that turns toxic chemicals into pure gold
  14. ↑ Langevin, Stéphanie; Vincelette, Jean; Bekal, Sadjia; Gaudreau, Christiane (February 2011). "First Case of Invasive Human Infection Caused by Cupriavidus metallidurans". Journal of Clinical Microbiology 49 (2): 744–745. doi:10.1128/JCM.01947-10. ISSN 0095-1137. PMID 21106795. 

External links

Wikidata ☰ Q136005 entry



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