Cupriavidus metallidurans

Cadmium is a highly toxic heavy metal for biological systems. Cupriavidus metallidurans CH34 is a model strain to study heavy metal resistance and bioremediation as cupriavidus metallidurans is able to deal with high heavy metal concentrations. The aim of this study was to characterize the response of C. Inhibition of the initiation of biofilm formation and EPS production by C, cupriavidus metallidurans.

Federal government websites often end in. The site is secure. Recent discovery on the potential use of a bacterium has revealed that it can yield carat gold in one week. Scientists from Michigan State University, USA, Kazem Kashefi, assistant professor of microbiology and Adam Brown, associate professor of electronic art and intermedia, found that a bacterium, Cupriavidus metallidurans previously known as Ralstonia metallidurans [ 1 ] that belongs to beta class of proteobacteria can grow on a substantial concentration of toxic gold chloride also known as liquid gold. The bacterium with such potential was first isolated in from the sludge of a metal processing factory located in Belgium [ 3 ].

Cupriavidus metallidurans

Federal government websites often end in. The site is secure. We describe the first case of invasive human infection a nosocomial septicemia caused by Cupriavidus metallidurans. This metal-resistant bacterium has not been reported to be pathogenic in humans or animals. A year-old Caucasian man, known to have type 2 diabetes, arteriosclerotic heart disease, dyslipidemia, arterial hypertension, and obesity kg , underwent a radical cystoprostatectomy with ileal duct and ileostomy for a vesical high-grade carcinoma with four pelvic lymph nodes positive for neoplasia. A subtotal pancreatectomy and splenectomy were performed simultaneously for a pancreatic neuroendocrine tumor. In each instance, the patient was treated with antimicrobial agents and drainage. Ten weeks after the initial operation, the patient presented with a fever with leukocytosis. At this time, the patient had necrotic abdominal wounds and two abdominal drains. The site of the left subclavian central catheter was normal.

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Not distinguished from Ralstonia eutropha until Cupriavidus metallidurans is a non-spore-forming, Gram-negative bacterium which is adapted to survive several forms of heavy metal stress. Cupriavidus metallidurans is a bacterial species that belongs to the same family as Ralstonia solanacearum , a plant pathogen. This species is of ecological and industrial importance, as its relatives dominate mesophilic environments contaminated with heavy metals. This aerobic chemolithoautotroph is capable of growing in a mineral salts environment with H 2 , O 2 , and CO 2 without an organic carbon source.

Federal government websites often end in. The site is secure. Recent discovery on the potential use of a bacterium has revealed that it can yield carat gold in one week. Scientists from Michigan State University, USA, Kazem Kashefi, assistant professor of microbiology and Adam Brown, associate professor of electronic art and intermedia, found that a bacterium, Cupriavidus metallidurans previously known as Ralstonia metallidurans [ 1 ] that belongs to beta class of proteobacteria can grow on a substantial concentration of toxic gold chloride also known as liquid gold. The bacterium with such potential was first isolated in from the sludge of a metal processing factory located in Belgium [ 3 ]. Its ability to detoxify gold complexes by transforming them into metallic gold was discovered in [ 4 ]. When discovered, the bacterium was initially found to be resistant to cadmium but subsequent studies identified that this strain is multi-metal resistant and has two plasmids pMOL28 and pMOL30 which harbor multiple loci for metal resistance [ 5 ]. Such unique ability of this extremophile to metabolize toxic substances might also provide an insight into understanding the origin of life. This microbial magician, C.

Cupriavidus metallidurans

Federal government websites often end in. The site is secure. Cupriavidus metallidurans has been mostly studied because of its resistance to numerous heavy metals and is increasingly being recovered from other environments not typified by metal contamination. They host a large and diverse mobile gene pool, next to their native megaplasmids. Here, we used comparative genomics and global metabolic comparison to assess the impact of the mobilome on growth capabilities, nutrient utilization, and sensitivity to chemicals of type strain CH34 and three isolates NA1, NA4 and H The mobilome was expanded as prophages were predicted in NA4 and H, and a genomic island putatively involved in abietane diterpenoids metabolism was identified in H

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International Journal of Systematic and Evolutionary Microbiology. The higher induction of the mercury resistance merA gene in the CH34 biofilm than in planktonic cells resembles the improved mercury resistance in a Desulfovibrio desulfuricans biofilm compared to planktonic cells Lin et al. L-sorbose as carbon source SBE. Park, S. Cells from a static culture after 8 h incubation Kuchma et al. This species is of ecological and industrial importance, as its relatives dominate mesophilic environments contaminated with heavy metals. Coenye T. Geneva: World Health Organization. Transposon Tn21, flagship of the floating genome. After 2 days of piperacillin-tazobactam, the fever resolved. Antibiotica Metabolite Antibiotic sensitivity Antibiotic resistance [Ref. Biological recovery of platinum complexes from diluted aqueous streams by axenic cultures. The culture medium was adjusted to pH 7. One week later, two blood culture sets were negative.

Eubacteria kingdom ; Bacteria domain ; Proteobacteria phylum ; Betaproteobacteria class ; Burkholderiales order ; Burkholderiaceae family ; Cupriavidus genus. Cupriavidus metallidurans previously Ralstonia metallidurans [2] type strain CH34 hereafter C.

Liebert, C. The authors thank Dr. This artwork received an honorable, mentioned in the world renowned cyber art competition, Prix Ars Electronica , held in Austria [ 7 ]. Vandamme P, Coeyne T. Biofilms have been described as an advantageous lifestyle promoted by stress, toxic compounds, or heavy metals, which allow the selection of resistant cells Harrison et al. More pronounced changes due to the overexpression of the mrp gene from the plasmid pJB urf2. Federal government websites often end in. A simple and efficient Triton X boiling and chloroform extraction method of RNA isolation from Gram-positive and gram-negative bacteria. Journal of Clinical Microbiology. Classification of metal-resistant bacteria from industrial biotopes as Ralstonia campinensis sp. PLoS One 6:e PLoS One 9:e At this time, the patient had necrotic abdominal wounds and two abdominal drains.