| dysgonomonas gen. nov. to accommodate dysgonomonas gadei sp. nov., an organism isolated from a human gall bladder, and dysgonomonas capnocytophagoides (formerly cdc group df-3). | results of a polyphasic taxonomic study on an unknown gram-negative, facultatively anaerobic, coccobacillus-shaped organism isolated from an infected human gall bladder are presented. phenotypic and molecular taxonomic studies revealed the organism to be close to, but distinct from, organisms designated cdc (centers for disease control and prevention) group df-3. the unknown bacterium was readily distinguished from reference strains of bacteroides, prevotella, porphyromonas and related taxa by 1 ... | 2000 | 11155996 |
| dysgonomonas mossii sp. nov., from human sources. | phenotypic and phylogenetic studies were performed on seven unidentified gram-negative, facultatively anaerobic, coccobacillus-shaped organisms isolated from human clinical specimens. comparative 16s rrna gene sequencing demonstrated that four of the strains corresponded to dysgonomonas capnocytophagoides whereas the remaining three isolates represent a new sub-line within the genus dysgonomonas, displaying greater than 5% sequence divergence with dysgonomonas capnocytophagoides and dysgonomonas ... | 2002 | 12353872 |
| dysgonomonas capnocytophagoides bacteraemia in a neutropenic patient treated for acute myeloid leukaemia. | dysgonomonas capnocytophagoides, formerly known as cdc group df-3, is an opportunistic pathogen associated with diarrhoea and very rarely bacteraemia. we report a case of d. capnocytophagoides found in blood cultures from a severely neutropenic patient treated for acute myeloid leukaemia. the isolate was found resistant to penicillin, cephalosporins, meropenem, aminoglycosides and ciprofloxacin, and susceptible to ampicillin, tetracycline, chloramphenicol, clindamycin and trimethoprim-sulphameth ... | 2005 | 15799769 |
| paludibacter propionicigenes gen. nov., sp. nov., a novel strictly anaerobic, gram-negative, propionate-producing bacterium isolated from plant residue in irrigated rice-field soil in japan. | a strictly anaerobic, propionate-producing bacterial strain (wb4t) isolated from rice plant residue in anoxic rice-field soil in japan was characterized phenotypically and phylogenetically. cells were gram-negative, non-motile, non-spore-forming, short rods. the strain utilized various sugars and produced propionate and acetate as major fermentation products with a small amount of succinate. the optimum growth temperature was 30 degrees c. oxidase, catalase and nitrate-reducing activities were n ... | 2006 | 16403864 |
| first isolation of dysgonomonas mossii from intestinal juice of a patient with pancreatic cancer. | dysgonomonas species were first designated in 2000. however, clinical infections due to this microorganism have rarely been described. our aim was to present the first isolation of dysgonomonas mossii from intestinal juice of a patient with pancreatic cancer. | 2006 | 16971236 |
| the effect of decreasing alkalinity on microbial community dynamics in a sulfate-reducing bioreactor as analyzed by pcr-sscp. | pcr-single-strand conformation polymorphism (sscp) and southern blotting techniques were adopted to investigate microbial community dynamics in a sulfate-reducing bioreactor caused by decreasing influent alkalinity. experimental results indicated that the sulfate-removal rate approached 87% in 25 d under the conditions of influent alkalinity of 4000 mg/l (as caco3) and sulfate-loading rate of 4.8 g/(l*d), which indicated that the bioreactor started up successfully. the analysis of microbial comm ... | 2006 | 16989283 |
| characterization and antimicrobial susceptibility of dysgonomonas capnocytophagoides isolated from human blood sample. | dysgonomonas capnocytophagoides belongs to a group of facultative anaerobic gram-negative coccobacilli that was formerly designated cdc group df-3. we evaluated the characteristics of this microbe and its susceptibility to antimicrobial agents. in this study, d. capnocytophagoides was isolated by anaerobic blood cultures from a 78-year-old male with pancreatic cancer, ischemic heart disease, and diabetes mellitus, who also showed symptoms of cholangitis. the isolated strain demonstrated resistan ... | 2008 | 18503172 |
| dysgonomonas hofstadii sp. nov., isolated from a human clinical source. | a gram-negative staining, facultative anaerobic, cocco-bacillus-shaped organism was isolated from a post-operative abdominal wound. based on morphological and biochemical criteria, strain mx 1040 (=ccug 54731(t)) was tentatively identified as bacteroidaceae but did not correspond to any recognized species of this family. comparative 16s rrna gene sequencing analysis demonstrated the organism to be related to species of the genus dysgonomonas, although sequence divergence values of >5% with the o ... | 2010 | 19576289 |
| phocaeicola abscessus gen. nov., sp. nov., an anaerobic bacterium isolated from a human brain abscess sample. | a strictly anaerobic bacterial strain, 7401987t, was isolated from a human brain abscess sample. cells were gram-negative, non-spore-forming, coccoid to rod-shaped and motile by flagella in a lophotrichous arrangement. the isolate was asaccharolytic and the major cellular fatty acids were anteiso-c15:0 (28.2%), c16:0 (18.0%), iso-c15:0 (12.3%) and iso-c17:0 3-oh (11.7%). 16s rrna gene sequence comparisons showed that the isolate was distantly related to members of the genera bacteroides (<83.6% ... | 2009 | 19620382 |
| approaches to the study of the systematics of anaerobic, gram-negative, non-sporeforming rods: current status and perspectives. | the present article gives an overview of recent taxonomic changes among the gram-negative, anaerobic rods, briefly highlighting areas where the biology and ecology have a bearing on recent nomenclatorial changes. the focus is among the genera bacteroides, prevotella, porphyromonas, leptotrichia, dysgonomonas, fusobacterium and the synergistes group and additionally demonstrates the value of conserved indels and group-specific proteins for identifying and circumscribing many of these taxa and the ... | 2009 | 19695337 |
| performance of a sulfidogenic bioreactor and bacterial community shifts under different alkalinity levels. | the performance of a sulfidogenic bioreactor and the response of bacterial populations to influent alkalinity changes were investigated. the bioreactor reached 40% of sulfate removal efficiency (sre) with 0 mg l(-1) of alkalinity, and single-stranded conformation polymorphism profiles showed that some members of bacteroides, dysgonomonas, sporobacter, quinella, and citrobacter became dominant populations. 16s rrna gene library analysis indicated that the actinobacteria group increased from 0% in ... | 2010 | 20688512 |
| complete genome sequence of paludibacter propionicigenes type strain (wb4). | paludibacter propionicigenes ueki et al. 2006 is the type species of the genus paludibacter, which belongs to the family porphyromonadaceae. the species is of interest because of the position it occupies in the tree of life where it can be found in close proximity to members of the genus dysgonomonas. this is the first completed genome sequence of a member of the genus paludibacter and the third sequence from the family porphyromonadaceae. the 3,685,504 bp long genome with its 3,054 protein-codi ... | 2011 | 21475585 |
| population dynamics and current-generation mechanisms in cassette-electrode microbial fuel cells. | cassette-electrode microbial fuel cells (ce-mfcs) have been demonstrated useful to treat biomass wastes and recover electric energy from them. in order to reveal electricity-generation mechanisms in ce-mfcs, the present study operated a bench-scale reactor (1 l in capacity; approximately 1,000 cm(2) in anode and cathode areas) for treating a high-strength model organic wastewater (comprised of starch, peptone, and fish extract). approximately 1 month was needed for the bench reactor to attain a ... | 2011 | 21983705 |