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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2015/10/21 13:34:26」(JST)

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Ralstonia pickettii is a Gram-negative rod soil bacterium.

Ralstonia pickettii is a gram-negative, rod shaped beta proteobacteria found in moist environments such as soils, river and lakes. It has also been identified in biofilms in plastic water pipes. It is an oligotrophic organism, making it capable of surviving in areas with a very low concentration of nutrients. Several strains have shown an ability to survive in environments highly contaminated with metals. The ability to persist in these harsh conditions makes R. picketti a unique candidate for bioremediation.

Ralstonia pickettii and Ralstonia insidiosa are emerging pathogens in hospital settings. Ralstonia pickettii pathology does not follow an easy definition; although no fully healthy human has ever become ill from R. pickettii, the bacteria has seriously affected humans with poor health. Several hospitals have reported outbreaks - in particular, patients with cystic fibrosis and Crohn’s Disease have been shown to be infected R. pickettii. Of the 55 reported cases of infection by R. pickettii, the majority are due to contaminated solutions such as water, saline and sterile drugs. These solutions are usually contaminated when the product is manufactured, due to the fact that R. pickettii has the ability to pass through 0.45 and 0.2mm filters that are used to sterilize medicinal products. The majority of the R. pickettii and R. insidiosa isolates showed susceptibility to most of the antibiotics tested in this study below . The most effective were found to be the quinolones and sulfamethoxazole/trimethoprim.

Ryan, MP; Adley, CC (Jul 2013). "The antibiotic susceptibility of water-based bacteria Ralstonia pickettii and Ralstonia insidiosa". J Med Microbiol 62 (7): 1025–31. doi:10.1099/jmm.0.054759-0.

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1. 新生児における酸素のモニタリングおよび治療 oxygen monitoring and therapy in the newborn

English Journal

Differentiating the growing nosocomial infectious threats Ralstonia pickettii and Ralstonia insidiosa.

Ryan MP, Pembroke JT, Adley CC.SourceMicrobiology Laboratory, Department of Chemical and Environmental Sciences, University of Limerick, Limerick, Ireland.
European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology.Eur J Clin Microbiol Infect Dis.2011 Oct;30(10):1245-7. Epub 2011 Apr 2.
Differentiation of the growing nosocomial infectious threats, Ralstonia pickettii and Ralstonia insidiosa, based on nitrate reduction, desferrioxamine susceptibility, arabinose, N-acetyl-glucosamine and phenylacetate assimilation is described. These tests can be used for preliminary identification o
PMID 21461848

Genotypic and phenotypic diversity of Ralstonia pickettii and Ralstonia insidiosa isolates from clinical and environmental sources including High-purity Water. Diversity in Ralstonia pickettii.

Ryan MP, Pembroke JT, Adley CC.SourceMicrobiology Laboratory, Department of Chemical and Environmental Sciences, University of Limerick, Limerick, Ireland. Catherine.Adley@ul.ie.
BMC microbiology.BMC Microbiol.2011 Aug 30;11:194.
ABSTRACT:BACKGROUND: Ralstonia pickettii is a nosocomial infectious agent and a significant industrial contaminant. It has been found in many different environments including clinical situations, soil and industrial High Purity Water. This study compares the phenotypic and genotypic diversity of a s
PMID 21878094

Japanese Journal

Selective isolation of bacteria from soil with hydrophobic materials

Oku Shota,Nishiyama Masaya,Takao Yuji
World Journal of Microbiology and Biotechnology -(-), -, 2011
… those closely related to Ralstonia pickettii, using ODS and DVB particles; …
NAID 120002769905

Ralstonia pickettiiのクロロフェノール代謝遺伝子の翻訳レベルでの発現制御

八田貴,鳥居英人,萱野由記 [他]
岡山理科大学技術科学研究所年報 (28), 81-86, 2010
NAID 40017411957

「ラルストニア・ピッケティ」

Ralstonia pickettii
Scientific classification
Kingdom:	Bacteria
Phylum:	Proteobacteria
Class:	Beta Proteobacteria
Order:	Burkholderiales
Family:	Ralstoniaceae
Genus:	Ralstonia
Binomial name
	Ralstonia pickettii; (Ralston et al. 1973); Yabuuchi et al. 1996
Synonyms
	Burkholderia pickettii (Ralston et al. 1973) Yabuuchi et al. 1993; Pseudomonas pickettii Ralston et al. 1973