It is possible that paracoccus denitrificans is an ancestor to the eukaryotic mitochondria. In conclusion, the sequence analysis of 16s rdna proved to be a useful diagnostic tool, with. One species, paracoccus yeei, is unique within the genus because it is. The 16s rrna gene sequences of several environmental p. Paracoccus yeei is an environmental bacterium suspected to be responsible for ocular infections. Cdc eugonic oxidizer group 2 eo2 is a group of unclassified gramnegative bacterial strains isolated from various human sources. Paracoccus yeei was isolated in pure culture from an aerobic blood culture and bulla fluid from a 67yearold male. Corneal graft rejection complicated by paracoccus yeei. The species paracoccus yeeii was originally described by daneshvar et al. Pdf complete genome sequence of paracoccus yeei tt. Bacteriaproteobacteriaalphaproteobacteriarhodobacteralesrhodobacteraceae paracoccus paracoccus yeei. The bacterium is an opportunistic human pathogen and has been associated with several infections peritonitis, conjunctivitis, bloodstream infection. As determined by biochemical tests and analyses of fatty acid compositions, these organisms form a homogeneous group that appears to be distinct from but related to other paracoccus species.
Genome structure of the opportunistic pathogen paracoccus. Degradation of benzoapyrene by bacterial isolates from. No bacteria were seen on a gram stain, and a conventional culture was. The eo2 strains studied, along with their sources and geographical origins, are presented in table 1. Paracoccus yeei is a gramnegative coccobacilli which is often an environmental organism. The variable growth in 6% nacl suggests that these organisms are unlikely to be found in the brine environments that have yielded some paracoccus species. Formerly cdc group eo2, a novel bacterial species associated with human infection article pdf available in journal of clinical microbiology 4. One species, paracoccus yeei, is unique within the genus because it is associated with opportunistic human infections. Gramnegative bacilli coccoidbacilli growth obligateaerobic catalasepositive oxidasepositive. Hosted by the usgs core science analytics and synthesis. A 68yearold man who had undergone two penetrating keratoplasties of his left eye was admitted with early corneal graft failure.
Other organisms were closely associated with staphylococcus caprae, staphylococcus sp. May 27, 2019 bacteria of the genus paracoccus inhabit various pristine and anthropologicallyshaped environments. Definition of paracoccus pantotrophus in the dictionary. The electron transfer flavoprotein serves as a specific electron acceptor for other dehydrogenases. Paracoccus yeei peritonitis in peritoneal dialysis revista nefrologia.
The findings presented in this paper indicate that cdc group eo2 represents a previously undescribed paracoccus species associated with human infection. Paracoccus yeei was registered as a new species in 2003, and the. No other type strains of paracoccus species studied produced dna relatedness values of greater than 54% when compared with the proposed type strain of the new species g1212, atcc baa599, ccug 46822. Bacteria of the genus paracoccus are common components of the microbiomes of many naturally and anthropogenically shaped environments. As per the law relating to information storage and personal integrity, you have the right to oppose art 26 of that law, access art 34 of that law and rectify art 36 of that law your personal data.
The species paracoccus yeei was originally described by daneshvar et al. Paracoccus is also a genus of insects in family pseudococcidae. Moreover, similarity networking analysis highlighted the uniqueness of paracoccus prophages among known bacterial viruses. Information and translations of paracoccus denitrificans in the most comprehensive dictionary definitions resource on the web. Paracoccus yeei keratitis in a contact lens wearer. Paracoccus denitrificans, is a coccoid bacterium known for its nitrate reducing properties, its ability to replicate under conditions of hypergravity and for being a relative of the eukaryotic mitochondrion endosymbiotic theory. Paracoccus yeei as a cause of peritoneal dialysis peritonitis in the. This name became validly published when it appeared on validation list no. The biochemical identification scheme for this recently described species is outlined. In the regnum bacteria paracoccus davis proteobacteria. While the old biochemical identification kits are not able to identify this species, the new colorimetric vitek 2 gn card correctly identified this isolate in 7 hours. Clinical implications of paracoccus yeeii bacteremia in a. Pdf paracoccus yeei was identified as the etiologic agent of peritonitis in an ambulatory peritoneal dialysis patient.
Oct 25, 2018 bacteria of the genus paracoccus are common components of the microbiomes of many naturally and anthropogenically shaped environments. In taxonomy, paracoccus is a genus of the rhodobacteraceae. In this study, culturebased and polymerase chain reaction pcr sequencingbased investigations of a corneal scraping specimen confirmed p. Roseomonas and paracoccus bacteremia shmuel shoham, md, infectious diseases, 03. At 48h she received a positive culture in a blood culture medium for paracoccus yeei. If an article link referred you here, you might want to go back and fix it to point directly to the intended page. The bacterium is an opportunistic human pathogen and has been associated with several infections. Text is available under the creative commons attributionsharealike license. Genome structure of the opportunistic pathogen paracoccus yeei.
The description of this group as a new species of the genus paracoccus is as follows. The genome of paracoccus denitrificans consists of two circular chromosomes and one plasmid. However, infection of patients usually with underlying. Paracoccus yeei initially seems a lot like a cns, difference in gram stain and oxidase mcconkey growth variable, colonies are mucoid to very mucoid and light purple color bbao no growth characteristics. Culture of the anterior chamber fluid yielded paracoccus yeei, a nonfermentative gramnegative bacillus which thus far had only been implicated in ocular disease by means of pcr and 16s rrna gene sequencing directly on patient material. Molecular studies were performed on a set of eo2 strains from various. Paracoccus yeei global catalogue of microorganisms. One species can grow either autotrophically with h 2 and co 2 or heterotrophically with a wide variety of organic compounds as sole carbon sources. This rare gram negative organism that occurs naturally in the soil has been difficult to isolate until.
Ncbi taxonomy catalogue of life col species database global biodiversity information. Com is registrered at the cnil, declaration n 1286925. Suspected transmission path is direct or indirect contact with contaminated persons or. Complete genome sequence of paracoccus yeei tt, isolated. A new species, paracoccus yeeii, is proposed for the eo2 strains.
This page was last edited on 18 october 2019, at 23. The patient was a 74yearold man admitted in february 2008, diagnosed with. Because of its reaction pattern it is not unlikely. It is demonstrated that paracoccus denitrificans resembles a mitochondrion more closely than do other bacteria, in that it effectively assembles in a single organism those features of the. We report the first case of paracoccus yeeii bacteremia in a patient with decompensated cirrhosis who presented with variceal hemorrhage. Paracoccus yeei was identified as the etiologic agent of peritonitis in an ambulatory peritoneal dialysis patient. Upon validation, this name was corrected from paracoccus yeeii sic to paracoccus yeei. Page designed through the cooperative efforts of interagency itis teams.
Information and translations of paracoccus pantotrophus in the most comprehensive dictionary definitions resource on the web. Paracoccus marinus global catalogue of microorganisms. Because of its reaction pattern it is not unlikely that p. Paracoccus yeei is an aerobic, gramnegative coccobacillus. Formerly cdc group eo2, a novel bacterial species associated with human infection. It transfers the electrons to the main respiratory chain via etfubiquinone oxidoreductase etf dehydrogenase. Paracoccus denitrificans and the evolutionary origin of. Image taken by richard evansgowing at the university of east anglia, norwich, uk. Definition of paracoccus denitrificans in the dictionary. However no infectious source is identified in up to 50% of patients with cirrhosis and clinical sepsis. First comprehensively documented case of paracoccus yeei.
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