| williamsia muralis pulmonary infection. | | 2005 | 16110589 |
| polychlorinated biphenyl (pcb)-degrading bacteria associated with trees in a pcb-contaminated site. | the abundance, identities, and degradation abilities of indigenous polychlorinated biphenyl (pcb)-degrading bacteria associated with five species of mature trees growing naturally in a contaminated site were investigated to identify plants that enhance the microbial pcb degradation potential in soil. culturable pcb degraders were associated with every plant species examined in both the rhizosphere and root zone, which was defined as the bulk soil in which the plant was rooted. significantly high ... | 2006 | 16597927 |
| endophthalmitis due to williamsia muralis. | a case of endophthalmitis caused by williamsia muralis is described. the infection occurred following a procedure known as intravitreal triamcinolone acetonide injection for the treatment of diabetic maculopathy. this is the first report of w. muralis as a causative agent of endophthalmitis. | 2007 | 17893183 |
| degradation of ambient carbonyl sulfide by mycobacterium spp. in soil. | the ability to degrade carbonyl sulfide (cos) was confirmed in seven bacterial strains that were isolated from soil, without the addition of cos. comparative 16s rrna gene sequence analysis indicated that these isolates belonged to the genera mycobacterium, williamsia and cupriavidus. for example, mycobacterium sp. strain thi401, grown on pyg agar medium, was able to degrade an initial level of 30 parts per million by volume cos within 1 h, while 60 % of the initial cos was decreased by abiotic ... | 2008 | 18174143 |
| hoyosella altamirensis gen. nov., sp. nov., a new member of the order actinomycetales isolated from a cave biofilm. | a novel actinomycete, strain ofn s31(t), was isolated from a complex biofilm in the altamira cave, spain. a polyphasic study was carried out to clarify the taxonomic position of this strain. phylogenetic analysis with 16s rrna gene sequences of representatives of the genera corynebacterium, dietzia, gordonia, millisia, mycobacterium, nocardia, rhodococcus, segniliparus, skermania, tsukamurella and williamsia indicated that strain ofn s31(t) formed a distinct taxon in the 16s rrna gene tree that ... | 2009 | 19643882 |
| reclassification of nocardia corynebacterioides serrano et al. 1972 (approved lists 1980) as rhodococcus corynebacterioides comb. nov. | the type strain of nocardia corynebacterioides was the subject of a polyphasic taxonomic study. the 16s rrna gene sequence was aligned with the sequences of representatives of the genera corynebacterium, dietzia, gordonia, mycobacterium, nocardia, rhodococcus, skermania, tsukamurella and williamsia, and phylogenetic trees were constructed by using maximum-parsimony, maximum-likelihood and neighbour-joining methods. it was evident from the phylogenetic analysis that n. corynebacterioides represen ... | 2005 | 15879280 |
| williamsia maris sp. nov., a novel actinomycete isolated from the sea of japan. | the taxonomic position of a marine actinomycete, strain sjs0289/js1t, was determined using a polyphasic taxonomic approach. the organism, which had phenotypic properties consistent with its classification in the genus williamsia, formed a distinct clade in the 16s rrna gene tree together with the type strain of williamsia muralis, but was readily distinguished from this species using dna-dna relatedness and phenotypic data. the genotypic and phenotypic data show that the organism merits recognit ... | 2004 | 14742479 |
| williamsia muralis gen. nov., sp. nov., isolated from the indoor environment of a children's day care centre. | the taxonomic status of an actinomycete (ma 140/96t) isolated from indoor building materials of a children's day care centre was studied using the polyphasic approach. the cell morphology was atypical for an actinomycete, electron microscopy revealed a hairy surface, highly unusual for gram-positive bacteria. the organisms grew at 10-37 degrees c, no growth was visible at 5 degrees c and 45 degrees c in 5 d. the cell wall contained the diamino acid meso-diaminopimelic acid and the sugars arabino ... | 1999 | 10319491 |
| tuberculosis-like pneumonias by the aerobic actinomycetes rhodococcus, tsukamurella and gordonia. | the order actinomycetales includes phylogenetically diverse but morphologically similar aerobic and anaerobic organisms, exhibiting filamentous branching structures which fragment into rods or coccoid forms. lung pathogens of the order comprise mycobacterium, nocardia, corynebacterium, actinomyces, kytococcus, rothia, williamsia, as well as gordonia, tsukamurella and rhodococcus. particularly, members of the last three genera are uncommon aerobic agents of lung cavitations and tuberculosis(tb)-l ... | 2011 | 22192786 |
| williamsia limnetica sp. nov., isolated from a limnetic lake sediment in turkey. | the taxonomic position of an actinomycete isolated from a limnetic lake sediment was examined using a polyphasic approach. strain l1505t was found to have morphological, biochemical, physiological and chemotaxonomic properties consistent with its classification in the genus williamsia and formed a distinct phyletic line in the williamsia 16s rrna gene tree. strain l1505t clustered with the type species of w. muralis, w. marianensis and w. faeni showing 16s rrna gene sequence similarities of 99.0 ... | 2011 | 21841009 |
| williamsia phyllosphaerae sp. nov., isolated from the surface of trifolium repens. | a gram-positive, non-endospore forming actinobacterium (c7t) was isolated from the leaf surface of trifolium repens. on the basis of 16s rrna gene sequence similarity calculations, strain c7t was shown to belong to the genus williamsia and was most closely related to williamsia maris (98.0 %), williamsia deligens (96.4%), and williamsia serinedens (95.7%). the quinone system was determined to consist predominantly of menaquinone mk-9(h2), mk-8(h2), mk-7(h2). the polar lipid profile consisted of ... | 2010 | 21169464 |
| electrokinetic remediation and microbial community shift of β-cyclodextrin-dissolved petroleum hydrocarbon-contaminated soil. | electrokinetic (ek) migration of β-cyclodextrin (β-cd), which is inclusive of total petroleum hydrocarbon (tph), is an economically beneficial and environmentally friendly remediation process for oil-contaminated soils. remediation studies of oil-contaminated soils generally prepared samples using particular tphs. this study investigates the removal of tphs from, and electromigration of microbial cells in field samples via ek remediation. both tph content and soil respiration declined after the ... | 2010 | 21052991 |
| perinatal sepsis caused by williamsia serinedens infection in a 31-year-old pregnant woman. | williamsia serinedens has been isolated from soil but has not yet been implicated in human disease. we report the first case of perinatal sepsis caused by a dual-morphotype form of williamsia serinedens in a 31-year-old pregnant woman hospitalized with preterm labor. | 2010 | 20463157 |
| a polyphasic study on the species diversity of the sediment microbiota of lake hévíz. | lake hévíz is the largest natural thermal lake of europe, harboring special bacterial communities. the aim of the present study was to gain information about the distribution and species diversity of the sediment microbiota, with special focus on actinobacteria, by using cultivation-based and -independent molecular methods. samples from two depths were taken in two different locations in october 2007. 245 strains were isolated, grouped to 85 otus by ardra, and identified by 16s rdna sequencing. ... | 2009 | 20038486 |
| williamsia faeni sp. nov., an actinomycete isolated from a hay meadow. | the taxonomic status of an actinomycete isolated from soil collected from a hay meadow was determined using a polyphasic approach. the strain, designated n1350(t), had morphological and chemotaxonomic properties consistent with its classification in the genus williamsia and formed a distinct phyletic line within the clade comprising the type strains of species of the genus williamsia in the 16s rrna gene tree. strain n1350(t) shared highest 16s rrna gene sequence similarities with williamsia mar ... | 2010 | 20008113 |
| lateral transfer of genes for hexahydro-1,3,5-trinitro-1,3,5-triazine (rdx) degradation. | recent studies demonstrated that degradation of the military explosive hexahydro-1,3,5-trinitro-1,3,5-triazine (rdx) by species of rhodococcus, gordonia, and williamsia is mediated by a novel cytochrome p450 with a fused flavodoxin reductase domain (xpla) in conjunction with a flavodoxin reductase (xplb). pulse field gel analysis was used to localize xpla to extrachromosomal elements in a rhodococcus sp. and distantly related microbacterium sp. strain ma1. comparison of rhodococcus rhodochrous 1 ... | 2009 | 19270122 |
| williamsia serinedens sp. nov., isolated from an oil-contaminated soil. | the taxonomic status of a bacterium designated strain immib sr-4(t) isolated from an oil-contaminated soil sample was characterized by using a polyphasic approach. chemotaxonomic investigations revealed the presence of cell-wall chemotype iv, short-chain mycolic acids that co-migrated with those extracted from members of the genus williamsia and that on pyrolysis gc produce c(16 : 0) and c(18 : 0) fatty acids, and dihydrogenated menaquinone with nine isoprene units as the predominant menaquinone ... | 2007 | 17329784 |
| a taqman polymerase chain reaction method for monitoring rdx-degrading bacteria based on the xpla functional gene. | hexahydro-1,3,5-trinitro-1,3,5,-triazine (rdx) is a cyclic nitramine explosive that is a major component in many military high-explosive formulations. in this study, we developed a real-time taqman polymerase chain reaction (pcr) that targets the xpla functional gene involved in the breakdown/transformation of rdx. the xpla gene, described previously [seth-smith, h.m., rosser, s.j., basran, a., travis, e.r., dabbs, e.r., nicklin s., bruce, n.c., 2002. cloning, sequencing, and characterization of ... | 2007 | 17010461 |
| williamsia marianensis sp. nov., a novel actinomycete isolated from the mariana trench. | the taxonomic status of an actinomycete isolated from sediment collected from the mariana trench was established using a combination of genotypic and phenotypic data. isolate mt8t had chemotaxonomic and morphological properties consistent with its classification in the genus williamsia, and formed a distinct phyletic line in the 16s rrna gene tree together with the type strain of williamsia muralis. the isolate was readily distinguished from the latter, and from representatives of other williams ... | 2006 | 16627665 |
| diversity of actinomycetes isolated from challenger deep sediment (10,898 m) from the mariana trench. | thirty-eight actinomycetes were isolated from sediment collected from the mariana trench (10,898 m) using marine agar and media selective for actinomycetes, notably raffinose-histidine agar. the isolates were assigned to the class actinobacteria using primers specific for members of this taxon. the phylogenetic analysis based on 16s rrna gene sequencing showed that the isolates belonged to the genera dermacoccus, kocuria, micromonospora, streptomyces, tsukamurella and williamsia. all of the isol ... | 2006 | 16538400 |
| williamsia deligens sp. nov., isolated from human blood. | the taxonomic status of two bacterial strains isolated from human blood was characterized using a polyphasic approach. chemotaxonomic investigations revealed the presence of cell-wall chemotype iv, short-chain mycolic acids that co-migrated with those extracted from members of the genus williamsia and that produce c(16 : 0) and c(18 : 0) fatty acids on pyrolysis gc, and dihydrogenated menaquinone with nine isoprene units as the predominant isoprenologue. the generic assignment was confirmed by 1 ... | 2006 | 16403886 |
| mineralization of the cyclic nitramine explosive hexahydro-1,3,5-trinitro-1,3,5-triazine by gordonia and williamsia spp. | hexahydro-1,3,5-trinitro-1,3,5-triazine (rdx) is a cyclic nitroamine explosive that is a major component in many military high-explosive formulations. in this study, two aerobic bacteria that are capable of using rdx as the sole source of carbon and nitrogen to support their growth were isolated from surface soil. these bacterial strains were identified by their fatty acid profiles and 16s ribosomal gene sequences as williamsia sp. ktr4 and gordonia sp. ktr9. the physiology of each strain was ch ... | 2005 | 16332812 |