Publications
| Title | Abstract | Year(sorted ascending) Filter | PMID Filter |
|---|
| studies on strains of corynebacterium equi isolated from pigs. | 1950 | 14800806 | |
| a comparative study of the 'rhodochrous' complex and related taxa by delayed-type skin reactions on guinea pigs and by polyacrylamide gel electrophoresis. | cell extracts prepared by ultrasonic disruption of 17 strains of the 'rhodochrous' complex and related taxa were compared by polyacrylamide gel electrophoresis and for immunologic relatedness, by skin test reactions. two organisms, jensenia canicruria and nocardia calcarea, gave similar gel patterns and skin test reactions, and are considered to be identical. extracts of nocardia rubra showed a strong antigenic relationship with those of three nocardia pellegrino organisms (n325, n324 and n420) ... | 1977 | 70505 |
| the actinomycete-genus rhodococcus: a home for the "rhodochrous" complex. | a numerical taxonomic classification study was carried out on 177 strains representing the "rhodochrous" complex and the genera gordona, mycobacterium and nocardia. the strains were examined for 92 unit characters and the data were analysed by computer. three clusters were defined at the 75 to 80% similarity level. the first was a heterogeneous cluster corresponding to the "rhodochrous" taxon whereas the other two contained mycobacterium and nocardia strains respectively. the good correlation be ... | 1977 | 874450 |
| differentiation of rhodococcus (gordona) and nocardia by thinlayer chromatography after uptake of [35s]methionine. | 1978 | 632808 | |
| [microorganisms of the genus nocardia and the "rhodochrous" group in the soils of the ukrainian ssr]. | nocardioform bacteria characterized by the iv type of the cell wall and by lipid lcn-a are widely distributed in various soils of the ukrainian ssr. the acetamidase-negative forms of nocardia asteroides were found in 24.4% of soil samples, and the acetamidase-positive forms of this organism, in 4% of soil samples. the "rhodochrous" group was most often represented by the species n. erythropolis and n. rubropertincta, and less often, by nocardia (rhodococcus) rhodochrous, n. opaca and n. flava. t ... | 1978 | 713879 |
| serological study of nocardia pellegrino. | the serological relationship between nocardia pellegrino strains was studied by means of immunodiffusion technique. seven reference precipitation systems, including nocardia asteroides (three strains), n. pellegrino sn 5112, rhodococcus, rhodochrous (two strains) and n. erythropolis were used. with one exception all of the strains of nocardia pellegrino examined, seemed to be serologically related to the reference strain of n. pellegrino sn 5112. they showed 4-5 common precipitates. | 1978 | 749778 |
| dna homology studies on nocardia and rhodococcus strains. | the genetic homogeneity of nocardia amarae, nocardia autotrophica and rhodococcus strains and the relationship among these groups of microorganisms have been studied using the dna reassociation method. strains belonging to n. amarae and n. autotrophica form genetically homogeneous groups. distinct differences have been found out among rhodococcus strains. | 1978 | 749779 |
| isoprenoid quinones in the classification of coryneform and related bacteria. | menaquinones were the only isoprenoid quinones found in 85 of the 95 coryneform bacteria examined. dihydromenaquinones having nine isoprene units were the main components isolated from corynebacterium bovis, from other glutamic acid-producing strains, and from arthrobacter globiformis and related species. dihydromenaquinones with eight isoprene units were found in brevibacterium linens, the remaining corynebacterium species and strains probably belonging to the genus rhodococcus. tetrahydromenaq ... | 1979 | 107269 |
| immunodiffusion studies of ribosomes in classification of mycobacteria and related taxa. | ribosomal preparations consisting of crude ribosomes (cr), 30s subunits (30s) and 16s core particles (16s) from four strains of the species mycobacterium bovis (bcg), mycobacterium fortuitum, mycobacterium phlei and mycobacterium smegmatis were analyzed by immunodiffusion technique for taxonomical purposes. the ribosomal preparations tested contained several interspecies cross-reacting precipitinogens. the number of precipitinogens demonstrated at the homologous reactions was generally larger th ... | 1979 | 109401 |
| differentiation of genera of the coryneform bacteria. | a scheme of the generic structure of the group of coryneform bacteria, including the genera arthrobacter, brevibacterium, cellulomonas, corynebacterium, and rhodococcus, is suggested. morphological, chemotaxonomic (presence and stereochemical form of diaminopimelic acid, lipid a, and l-arabinose), and physiological features were used as diagnostic criteria. the position of microbacterum and mycococcus and of coryneforms with a nocardial wall but giving a positive hugh-leifson anaerobic test, and ... | 1979 | 121544 |
| corynebacterium equi in human faeces. | 1979 | 318474 | |
| [differentiation among mycobacterium, rhodococcus (gordona) and nocardia by thin-layer chromatography after incubation with acetate-1-14c (author's transl)]. | 1979 | 470298 | |
| [classification of bacteria of the genus rhodococcus by numerical taxonomic methods]. | 1979 | 514099 | |
| comparative studies of the strains pa and pn of mycobacterium phlei leading to their reclassification: examination of lipids and dna, biochemical tests and phage typing. | study of lipid and dna, biochemical tests and phage typing performed on the strain pa previously labelled mycobacterium phlei, lead to the conclusion that this strain belongs to the species m. smegmatis. parallel studies performed on strain pn, isolated from a culture of strain pa, as well as dna homology percentage of the two strains, do not support the assumption that strain pn could have resulted from a mutation of strain pa strain pn produces mycolic acids similar to those found in rhodococc ... | 1979 | 539691 |
| [periodic macromolecule syntheses in synchronized cultures of species belonging to the "rhodococcus" genus ("rhodochrous" group) (author's transl)]. | the synthesis of total proteins, total rna and dna in exponential synchronous cultures of species belonging to the rhodococcus genus (nocardia restricta and n. canicruria) has been studied by chemical methods and pulsed incorporations of labelled precursors in the acid-insoluble fraction. the replication of dna is discontinuous. syntheses of rna and proteins are periodic: they happen during two main periods during the time necessary for a doubling of the cell mass. a slowdown of these syntheses ... | 1980 | 6155818 |
| ribosomal ribonucleic acid similarities in the classification of rhodococcus and related taxa. | duplexes were prepared between 14c-labelled rrna from both rhodococcus equi c7 and rhodococcus rhodochrous n54 and dna from 16 actinomycetes representing the genera rhodococcus, mycobacterium, nocardia, saccharopolyspora and streptomyces. the relationships between the organisms were determined by plotting the temperature at which 50% of the duplex was denatured (tm(e)) against the percentage of rrna binding (microgram 14c-labelled rrna duplexed per 100 micrograms filter-bound dna). all of the st ... | 1980 | 6160195 |
| [development cycles of coryneform and nocardia-like bacteria]. | the growth cycles and the types of cell separation were studied in a microchamber with the collection strains of brevibacterium ammoniagenes attc 6871, b. helvolum atcc 19239, b. linens ccm 47 and atcc 9174, b. maris vkm b-464 and b. stationis atcc 14403, as well as with the strains of the genus rhodococcus isolated from soils, viz. r. maris sp. nov. imb 283 and r. luteus sp. nov. imb 385. according to the increasing complexity of cellular morphological transformation in the life cycle, the orga ... | 1980 | 6782438 |
| the distribution of mycobacterium bovis in queensland cattle herds with observations on the laboratory diagnosis of tuberculosis. | of 1,791 tissues submitted from 1975 to 1978 for histological examination for tuberculosis, 78.5% were classified as tuberculosis, 8.1% as club-forming granulomas, 3.3% as hydatid cysts, 3.4% as other granulomas and 2.4% as squamous cell carcinomas. cultural examination of 2,682 tissues for mycobacteria yielded mycobacterium bovis from 42.88%, other mycobacteria from 7.64% and 0.89% rhodococcus (corynebacterium) equi. of 1,478 tissues on which both examinations were performed, culture and histol ... | 1980 | 7018487 |
| numerical classification of some named strains of nocardia asteroides and related isolates from soil. | one hundred and forty-nine strains of nocardiae, freshly isolated from soil samples obtained from a number of countries with either tropical or temperate climates, and from rubber pipe seals, were compared with appropriate marker cultures in a numerical phenetic study using 156 unit characters. marker strains were chosen to represent the nocardia asteroides complex, other nocardia species and related taxa in an effort both to classify the new soil isolates and, possibly, clarify the structure of ... | 1980 | 7003057 |
| [thin-layer chromatography after incubation with 35s-methionine.--meaning of petroleum ether-soluble fraction as aid to identification of mycobacterium, rhodococcus, and nocardia--(author's transl)]. | 1980 | 7289348 | |
| [difference of uptake of 2,6-diamino (g-3h) pimelic acid dihydrochloride among mycobacterium, rhodococcus, and nocardia (author's transl)]. | 1980 | 7373966 | |
| response of developing branched bacteria to adverse environments. ii. micromorphological effects of lysozyme on some aerobic actinomycetes. | an early symptom of lysozyme treatment of developing actinomycete microcolonies is hyphal tip swelling, illustrating the plasticity of this region in relation to filament extension. the reaction is not limited to true mycelia of streptomyces, streptoverticillium and rhodococcus but is also characteristic of unbranched filaments of actinomycetes exposed during their elongation stage. on the other hand rods whose extension has ceased and which are undergoing fragmentation do not show any localized ... | 1980 | 7424249 |
| reclassification of mycobacterium phlei pn-bb as rhodococcus bronchialis pn-bb. | mycobacterium phlei pn-bb, induced in the parental strain pn by gamma-radiation and ethyl methanesulfonate, should be reclassified as rhodococcus bronchialis pn-bb. the reclassification is based on the results of lipid analysis, dna-dna hybridization and several biochemical tests, performed in comparison with the parental strain pn, earlier reclassified as r. bronchialis, and r, bronchialis (n654). | 1980 | 7469254 |
| septic arthritis and osteomyelitis caused by an organism of the genus rhodococcus. | we describe a previously healthy, immunologically normal young girl who presented painless swelling of fingers, a toe, and one knee. roentgenograms were consistent with osteomyelitis of the phalanges and knee effusion. rice bodies (corpora oryzoidea) were identified in viscous fluid obtained from the knee during arthroscopy. culture of this fluid grew an organism initially believed to be a member of the genus nocardia but which was later presumptively identified as a member of the genus rhodococ ... | 1981 | 7462414 |
| occurrence of rhodococcus coprophilus and associated actinomycetes in feces, sewage, and freshwater. | freshwater, sewage, and fecal samples from various sources were examined for rhodococcus coprophilus, associated actinomycetes, escherichia coli, and fecal streptococci. rhodococcus coprophilus was isolated consistently from feces of farm animals, poultry reared in proximity to farm animals, freshwater, and wastewater polluted with animal fecal wastes. it was not isolated from samples of human feces. the ratio of r. coprophilus total actinomycetes was higher in feces from cattle, sheep, ducks, a ... | 1981 | 7316510 |
| comparison of three techniques for isolation of rhodococcus (corynebacterium) equi from contaminated sources. | inoculation of a liquid medium comprised of trypticase soy broth (bbl microbiology systems), cycloheximide, nalidixic acid, penicillin, and potassium tellurite and subcultured onto m3 medium plus potassium tellurite was highly successful for the isolation of rhodococcus (corynebacterium) equi from soil. | 1981 | 7007424 |
| the treatment of pneumonia in foals caused by rhodococcus (corynebacterium) equi. | 1981 | 7259664 | |
| rhodococcus (corynebacterium) equi: a possible cause of reactions to the complement fixation test for johne's disease of cattle. | 1981 | 7271613 | |
| porcine abortions associated with fungi, actinomycetes, and rhodococcus sp. | history, lesions, and results of microbiologic examinations are given for four porcine abortions associated with fungi and one each associated with actinomadura madurae, an aerobic actinomycete, and rhodococcus sp. the fungi were gliomastix sp., petriellidium boydii, aspergillus fumigatus, and exophiala jeanselmei. parvovirus, isolated from one fetus, was the only other infectious agent identified. the presence of fungi, actinomadura madurae, and rhodococcus sp. in fetal and placental lesions in ... | 1981 | 7281459 |
| differentiation between the genera mycobacterium, rhodococcus and nocardia by susceptibility to 5-fluorouracil. | a test for susceptibility to 5-fluorouracil was useful for differentiating between species of rapidly growing mycobacteria, and for differentiating the genus rhodococcus from the genus nocardia. the majority of rhodococci tested were susceptible to 5-fluorouracil (20 micrograms ml-1), whereas the majority of nocardiae tested were resistant to it. strains of nocardia asteroides sensu stricto could be divided into two subgroups by their reaction to 5-fluorouracil. | 1981 | 7038035 |
| a survey of mycobacteriosis of feral pigs in the northern territory. | seven hundred and fifty-one feral pigs from the subcoastal plains of the northern territory were examined. the sample population consisted of 52.4% females and 47.6% males. they ranged in age from newborn piglets to mature animals of over 72 months. of the pigs examined 47.7% had macroscopic abscesses and of these 80.2% were probably caused by mycobacteria. tissues from 193 pigs were examined bacteriologically and 93 strains of mycobacteria were isolated. these were typed as m. bovis (37 strains ... | 1981 | 7041875 |
| test for susceptibility to mitomycin c as aids for differentiating the genus rhodococcus from the genus nocardia, and for differentiating mycobacterium fortuitum and mycobacterium chelonei from other rapidly growing mycobacteria. | 1981 | 6799752 | |
| routine test for in vitro differentiation of pathogenic and apathogenic listeria monocytogenes strains. | the exosubstance of rhodococcus equi in a prepurified form strongly enhanced the hemolytic effect of certain strains of listeria monocytogenes. the strains which produced positive synergic hemolysis with this exosubstance were also pathogenic for guinea pigs and white mice. the other strains, which remained nonhemolytic in the presence of the r. equi. exosubstance, were apathogenic for those animals. a routine test was devised for the in vitro determination of the pathogenicity of l. monocytogen ... | 1982 | 6804488 |
| numerical classification of some rhodococci, corynebacteria and related organisms. | nineteen strains of corynebacterium sensu stricto, 23 received as corynebacterium equi or rhodococcus equi, marker cultures of arthrobacter, brevibacterium, bacterionema matruchotii, cellulomonas flavigena, kurthia zopfii, listeria denitrificans, microbacterium lacticum, rhodococcus rubropertinctus and 88 representatives of mycobacterium, nocardia, rhodococcus and the 'aurantiaca' taxon were the subject of numerical phenetic analyses using 92 characters. the data were examined using the simple m ... | 1982 | 6811696 |
| hemolytic properties of exosubstance of serovar 5 listeria monocytogenes compared with beta toxin of staphylococcus aureus. | hemolytic exosubstance of serovar 5 listeria monocytogenes, tested in native and pre-purified forms, produced identical interactions with exosubstances of certain bacterial species to those of staphylococcus aureus beta toxin on agars with ovine, rabbit, human and equine erythrocytes. in the same way like the staphylococcal beta toxin, it enhanced hemolysis of other l. monocytogenes serovars, though only slightly and after a longer time of incubation. with the hemolysin of corynebacterium pyogen ... | 1982 | 6812312 |
| fatty acid composition of some mycolic acid-containing coryneform bacteria. | the fatty acid profiles of 74 strains of mycolic acid-containing coryneform bacteria were examined by gas-liquid chromatography. all of the strains contained major amounts of straight-chain and monounsaturated fatty acids although some also possessed substantial amounts of 10-methyloctadecanoic acid. iso- and anteiso-branched acids were not present. five distinct fatty acid patterns were evident: (i) corynebacterium diphtheriae, c. pseudotuberculosis and 'c. ulcerans' strains contained major amo ... | 1982 | 6818327 |
| numerical classification of rhodococcus equi and related actinomycetes. | 1982 | 6819287 | |
| is rhodococcus equi a soil organism? | a total of 189 isolates of rhodococcus equi and related organisms and 16 marker strains representing the genera rhodococcus and corynebacterium were screened for 160 unit characters in a numerical taxonomic study. analysis of the data indicated that r. equi forms a relatively homogeneous cluster distinctly separated from the recognized species of rhodococcus and corynebacterium (sensu stricto). other members of the genus rhodococcus are soil organisms and r. equi appears to fit into the genus on ... | 1982 | 6962888 |
| immunity to and immunotherapy for rhodococcus equi. | immune responses to rhodococcus equi were assayed in mares and foals on 7 studs in south-eastern australia using skin test reactivity to the intradermal injection of culture filtrate and an indirect fluorescent antibody test. the prevalence of positive skin-test reactions did not differ between studs with a history of r. equi disease and those without but there were more mares with high antibody titres on studs with a disease history. a leucocyte extract prepared from mares that were skin-test p ... | 1982 | 6962890 |
| capsular serotypes of rhodococcus equi. | one hundred strains of rhodococcus equi from various animal species and sources in australia were examined for capsular serotype. eighty-four of the strains fell into the existing 7 serotypes, and just under half of the strains belonged to serotype 1. isolates from the intestines and faeces of horses, cattle, pigs and other species, and from soil, were found to belong to the same serotypes as those recovered from the lungs of foals with r. equi pneumonia. there was no clear relationships between ... | 1982 | 7082241 |
| a survey of the structures of mycolic acids in corynebacterium and related taxa. | acid methanolysates of 104 strains of coryneform and related bacteria were examined for mycolic acids by thin-layer chromatography and mass spectrometry. the mycolic acids of corynebacterium sensu stricto strains were not uniform in size and structure, and considerable variation existed within the approximate limiting range of c22 to c36. two species, corynebacterium bovis and 'corynebacterium mycetoides', were particularly distinctive; the former had exceptionally low molecular weight mycolic a ... | 1982 | 7086391 |
| [key rhodococcus enzymes in the catabolism of aromatic compounds]. | the enzyme apparatus involved in the catabolism of aromatic compounds in rhodococci is characterized by the presence of pyrocatechase and protocatechoate-3,4-dioxygenase as principal enzymes cleaving the aromatic cycle. metapyrocatechase was found in about 30% of the rhodococci. all the enzymes are inducible. the inductor of pyrocatechase seems to be cyc-cys-muconate, and that of protocatechase appears to be 3-oxoadipate. the metapyrocatechase of rhodococci, in contrast to that of pseudomonas, i ... | 1982 | 7087811 |
| numerical and chemical classification of nocardia amarae. | twenty-one strains of nocardia amarae and marker cultures of mycobacterium, nocardia, rhodococcus and the 'aurantiaca' taxon were subjected to numerical phenetic analyses using 92 unit characters. the data were examined using the simple matching (ssm), jaccard (sj) and pattern (dp) coefficients and clustering was achieved using the unweighted average linkage algorithm. neither cluster nor aggregate cluster composition was markedly affected by the coefficient used or by test error, estimated at 1 ... | 1982 | 7119738 |
| lung infection caused by gordona aurantiaca (rhodococcus aurantiacus). | we report that gordona aurantiaca (rhodococcus aurantiacus) caused a lung infection in humans. the case of a 50-year-old male farmer is shown. this is the first report of infection by this organism. | 1982 | 7153308 |
| in-vitro susceptibility of nocardia and rhodococcus to fourteen beta-lactam antibiotics. | 1982 | 7161233 | |
| differentiation between the genera rhodococcus and nocardia and between species of the genus mycobacterium by susceptibility to bleomycin. | 1982 | 6185624 | |
| isolation and characterization of an intracellular serine protease from rhodococcus erythropolis. | 1982 | 6758705 | |
| [rhodococcus isolated from a gluteal abscess]. | the pathogenic role of the genus rhodococcus as an infectious agent in human beings is very small. its taxonomic allocation may be difficult since there is no systematic description of this bacterial group. this paper summarizes the international literature on the microbiologic diagnosis of rhodococcus and the small number of known cases of rhodococcus infections. a description is given of the first case of a post-injection gluteal abscess caused by a rhodococcus sp. | 1982 | 6759413 |
| numerical analysis of the taxonomy of nocardiae and rhodococci. | the genera nocardia and rhodococcus were clearly differentiated in the present study. eleven characteristics were shown to be useful for differentiation between these two genera. nocardia asteroides sunsu stricto previously defined by tsukamura was divided into two taxa. one contained the type strain and was considered to retain the name nocardia asteroides in a new sense. another was named in the present study as nocardia nova sp. nov. tsukamura. the type strain of this species is atcc 33726. t ... | 1982 | 6763136 |
| chemical and physical characterization of interfacial-active lipids from rhodococcus erythropolis grown on n-alkanes. | lipophilic compounds of the culture suspension containing rhodococcus erythropolis dsm43215 had surfactant properties when the bacteria were cultivated with n-alkanes as the sole carbon source. thirteen main components from a dichloromethane-methanol extract of the r. erythropolis cultures were isolated and characterized to specify quantitatively their surfactant properties, e.g., minimum surface and interfacial tensions and critical micelle concentrations. the interfacial activity of the organi ... | 1982 | 16346110 |
| degradation of aniline and monochloroanilines by rhodococcus sp. an 117 and a pseudomonad: a comparative study. | two newly isolated aniline-degrading bacterial strains were characterized with regard to their enzyme systems responsible for aniline catabolism. one of them identified as a rhodococcus sp. metabolized aniline exclusively via the beta-ketoadipate pathway by means of inducible enzymes. the aniline-degrading enzyme system of the second isolate, presumably a pseudomonad, was shown to consist of an inducible aniline-converting enzyme and constitutive meta-pathway enzymes. both isolates failed to met ... | 1983 | 6613168 |
| [circumstances leading to the establishment of genus rhodococcus]. | 1983 | 6655873 | |
| virulence of rhodococcus equi for mice. | 1983 | 6656069 | |
| serogrouping of rhodococcus equi. | the serological relationships among 27 isolates of rhodococcus equi selected from a total of 1,195 isolates were investigated by cross-agglutination and absorption tests. the presence of capsular material was demonstrated in all the 27 isolates by electron microscopic observation. antisera were prepared by employing formalized antigen of each isolate. in the cross-agglutination test with formalized antigen, 13 antisera reacted with homologous antigens alone, but the remaining 14 antisera reacted ... | 1983 | 6669074 |
| quantitative culture of rhodococcus equi from the feces of horse. | the selective isolation of r. equi in nanc medium was made by quantitative culture of the organism in the feces. r. equi was observed in the feces of all the mares and foals investigated. the mean viable count of r. equi organisms in 1 gram of feces was 8.42 x 10(2) in the mares and 7.57 x 10(2) in the foals, and its 95% confidence limits were in a range of 6.48 x 10(2) to 1.09 x 10(3) and 4.19 x 10(2) to 1.37 x 10(3), respectively. this result indicates that r. equi is a member of the normal in ... | 1983 | 6680772 |
| [biochemical differentiation of the "listeria monocytogenes" (sensu lato) genomic groups]. | camp-tests with staphylococcus aureus and rhodococcus equi and acid production from d-xylose allowed to separate the five dna relatedness groups described for listeria monocytogenes sensu lato; acid production from l-rhamnose and alpha-methyl-d-mannoside are secondary markers. | 1983 | 6405670 |
| immunodiffusion analyses of some diphtheroid organisms isolated from patients with leprosy. | eight strains of diphtheroid bacteria isolated from patients with leprosy were analyzed by immunodiffusion, using precipitation systems representing various species of corynebacterium, mycobacterium, nocardia, rhodococcus, and related organisms. the analyses showed that six of the eight strains shared several antigens with representatives of these four genera. the largest number of shared precipitinogens was revealed when the corynebacterial precipitation systems were used, thus indicating that ... | 1983 | 6413437 |
| identification key for coryneform bacteria derived by numerical taxonomic studies. | six main groups were formed from a complete linkage dendrogram on 557 bacteria tested for 53 physiological features. the organisms were obtained from culture collections and included representatives of the following genera: arthrobacter, brevibacterium, caseobacter, cellulomonas, corynebacterium, curtobacterium, micrococcus, microbacterium, mycobacterium, nocardia, oerskovia and rhodococcus. the six groups were individually subjected to a numerical taxonomic analysis based on linkage maps, which ... | 1983 | 6413644 |
| cross-reactivity between mycobacterium tuberculosis h37rv and various actinomycetes and related organisms. | one hundred and forty-one strains of actinomycetales and related organisms were investigated by immunodiffusion for the presence of antigens which cross-react with the antigens of m. tuberculosis h37rv. the test strains comprised 86 different species names and 20 different genus names; they were mainly environmental organisms isolated from soil, plants, animals and such like. more than 90% of these strains were shown to have one or more antigens in common with the tubercle bacillus, and 77% had ... | 1983 | 6415879 |
| fine structural studies of rhodococcus species. | fine structural aspects of rhodococcus rhodochrous and r. equi are described and illustrated by electron micrographs after staining of cells by a variety of electron cytochemical procedures. the cell contents of these actinomycetous bacteria were those of a typical prokaryotic cell and consistent with that observed for other species of the actinomycetales. fixation with either osmium tetroxide or permanganate indicated the presence of an electron opaque substance at the wall exterior of r. rhodo ... | 1983 | 6191182 |
| sensitivity to capreomycin and prothionamide in strains of mycobacterium, nocardia, rhodococcus, and related taxa for taxonomical purposes. | sensitivity to capreomycin and to prothionamide was analysed for 150 strains belonging to the genera mycobacterium, nocardia, rhodococcus, and related taxa. the analyses showed, e.g., that strains of mycobacterium chelonei and nocardia brasiliensis were more resistant to capreomycin than the other strains tested and that m. farcinogenes differed from m. senegalense concerning sensitivity to this drug. the analysis showed, furthermore, that strains of mycobacterium differ from those of nocardia, ... | 1983 | 6196927 |
| investigation of the survival characteristics of rhodococcus coprophilus and certain fecal indicator bacteria. | rhodococcus coprophilus and clostridium perfringens survived in fresh water samples held at 5, 20, and 30 degrees c for over 17 weeks, whereas escherichia coli and fecal streptococci disappeared after 5 weeks at all three temperatures. r. coprophilus survived for more than 8 months in sterilized sewage and deionized water at all three temperatures, whereas in normal sewage held at 20 degrees c, the survival time was 12 to 26 weeks. in samples held at 30 degrees c, survival times were shorter, pr ... | 1983 | 6312883 |
| recurrent skin infection with rhodococcus in an immunosuppressed patient. | a renal transplant patient taking prednisone and azathioprine has had repeated episodes of skin infection with the soil saphrophyte rhodococcus. human disease with this organism has not been proved before. although the lesions have always responded to antibiotics, frequent recurrence makes the long-term outlook uncertain. | 1983 | 6350469 |
| crossreactivity between mycobacterium leprae and various actinomycetes and related organisms. | serological crossreactivity was analyzed between m. leprae and strains of various species of corynebacterium, mycobacterium, nocardia, rhodococcus, streptomyces, and related organisms. m. leprae shares antigens with most of these organisms, and sera from patients with lepromatous leprosy contain antibodies against them. the results demonstrate that m. leprae shares more antigens with the mycobacteria than with strains of the other tested genera, thus supporting the view that the leprosy organism ... | 1983 | 6352526 |
| rapid microbiochemical identification of corynebacterium diphtheriae and other medically important corynebacteria. | a rapid biochemical method based on the fermentation of carbohydrates, the hydrolysis of urea, and the reduction of nitrate was used to identify corynebacterium diphtheriae, c. ulcerans, c. pseudodiphtheriticum, c. haemolyticum, c. pseudotuberculosis, c. pyogenes, c. ovis, the centers for disease control jk group, and rhodococcus (corynebacterium) equi. with this procedure identification was confirmed for 133 stock cultures and clinical isolates of corynebacteria. most were identified within 1 h ... | 1983 | 6355166 |
| thymidine kinase of bacteria: activity of the enzyme in actinomycetes and related organisms. | various micro-organisms were studied for their thymidine kinase (adenosine 5'-triphosphate:thymidine 5'-phosphotransferase, ec 2.7.1.21) (tk) activity. the sonicated cell extract of escherichia coli k12 had a tk activity of 35-66 pmol thymidine monophosphate formed min-1 (mg protein)-1. the cell extracts of salmonella typhimurium and klebsiella pneumoniae showed a markedly higher (5- to 11-fold) tk activity. somewhat lower but significant tk activity was detected in the cell extracts of staphylo ... | 1984 | 6381650 |
| gas chromatography-mass spectrometry of mycolic acids as a tool in the identification of medically important coryneform bacteria. | the mycolic acid derivatives of 11 unidentified pathogenic coryneform bacteria were examined by tlc, glc and glc-mass spectrometry. the resulting mycolic acid profiles of the unidentified isolates were compared with those of type or reference strains of possibly related coryneform species, namely corynebacterium bovis, c. diphtheriae, c. xerosis and rhodococcus equi. it was apparent that most of the unidentified strains showed a distinctive mycolic acid profile, with predominant amounts of relat ... | 1984 | 6427401 |
| isonicotinic acid hydrazide induced changes and inhibition in mycolic acid synthesis in nocardia and related taxa. | the mycolic acid compositions of nocardia rubra and related bacteria grown in media containing different concentrations of antituberculous isonicotinic acid hydrazide (inh) were determined in detail by gas chromatography-mass spectrometry. on the basis of molecular species composition, average carbon numbers of mycolic acids were calculated. in nocardia rubra, n. lutea and rhodococcus rhodochrous ifo-13161, the ratio of mycolic to non-mycolic fatty acids and the average carbon numbers of mycolic ... | 1984 | 6428369 |
| [free mycolic acids of the cells of coryneform and nocardia-like bacteria]. | the composition of free mycolic acids was studied in the cells of brevibacterium ammoniagenes atcc 6871, b. flavum 22, b. stationis atcc 14403, corynebacterium divaricatum atcc 14020 and rhodococcus maris imv 195. the acids are a mixture of saturated and unsaturated compounds with the total number of carbon atoms from 32 to 36 and the number of c atoms in the alpha-chain from 10 to 15. | 1984 | 6431238 |
| serotaxonomical analyses of strains referred to nocardia amarae and rhodococcus equi. | four strains of nocardia amarae and four strains of rhodococcus equi (earlier designated corynebacterium equi) were analysed by means of the comparative immunodiffusion technique for taxonomical purposes. nineteen reference precipitation systems, representing different species of corynebacterium, mycobacterium, nocardia, rhodococcus, streptomyces, and related taxa were employed. the n. amarae strains differed serologically from the reference strains of nocardia and their assignment to the latter ... | 1984 | 6442818 |
| the fate of methoxychlor in soils and transformation by soil microorganisms. | methoxychlor was found to be sufficiently persistent in soil and its residues were present even 18 months after the soil treatment. saprophytes, fungi and actinomyces were unaffected by varying concentrations of methoxychlor, azotobacter however was susceptable. soil strains isolated did not utilize methoxychlor as a sole carbon source except for 9 cultures belonging to the genera bacillus, acinetobacter and rhodococcus which carried out the complete dechlorination, demethylation and splitting o ... | 1984 | 6491174 |
| rhodococcus equi pneumonia in foals. | rhodococcus (corynebacterium) equi pneumonia is diagnosed by thoracic auscultation, radiographic and hematologic examination, and transtracheal aspiration. treatment may be unsuccessful because of the organism's tendency to cause pulmonary abscesses. a 2-month-old, depressed, anorectic, febrile quarter horse colt, previously unresponsive to penicillin therapy, had loud, moist breath sounds in the ventral lung fields. chest radiographs revealed pneumonia. based on culture and sensitivity tests on ... | 1984 | 6504018 |
| effect of rhodococcus equi on equine polymorphonuclear leukocyte function. | a procedure was developed for isolating large numbers of purified polymorphonuclear leukocytes (pmns) from the peripheral blood of horses. equine pmn function was evaluated by three procedures: 1) staphylococcus aureus ingestion, 2) nitroblue tetrazolium reduction, and 3) iodination. four preparations of r. equi were added to polymorphonuclear leukocytes (pmns) in each test system. live bacteria, heat-killed bacteria, the washed pellet from heat-killed bacteria, and the supernatant fluid from he ... | 1984 | 6506452 |
| equine cell-mediated immune response to rhodococcus (corynebacterium) equi. | a lymphocyte blastogenic assay was developed to serve as an in vitro correlate of cell-mediated immunity to rhodococcus (corynebacterium) equi (r equi) in the equine species. lymphocytes obtained from a group of experimental ponies showed no response in cell culture to r equi heat extract or lysozyme extract antigens. ponies were assigned to groups for experimental inoculation. three ponies were inoculated subcutaneously with live r equi, 3 were given live r equi by intranasal and intratracheal ... | 1984 | 6524738 |
| equine humoral immune response to rhodococcus (corynebacterium) equi. | an enzyme-linked immunosorbent assay was developed to test equine serum for the presence of antibodies to rhodococcus (corynebacterium) equi. experimental ponies had no detectable antibody to r equi before exposure to the bacterium. after experimental inoculation, animals in groups that received live r equi subcutaneously or intranasally/intratracheally developed high titers to r equi. noninoculated controls remained seronegative. serum was also collected from horses of various ages that were na ... | 1984 | 6524739 |
| ecology of rhodococcus equi. | a selective broth enrichment technique was used to study the distribution of rhodococcus equi in soil and grazing animals. rhodococcus equi was isolated from 54% of soils examined and from the gut contents, rectal faeces and dung of all grazing herbivorous species examined. rhodococcus equi was not isolated from the faeces or dung of penned animals which did not have access to grazing. the isolation rate from dung was much higher than from other samples and this was found to be due to the abilit ... | 1984 | 6719819 |
| new type of oxygenase involved in the metabolism of propane and isobutane. | nocardia paraffinicum (rhodococcus rhodochrous), a hydrocarbon-degrading microorganism, was used in a study of propane and isobutane metabolism. the bacterium was able to utilize propane or isobutane as a sole source of carbon, and oxygen was found to be essential for its metabolism. gas chromatographic analysis showed that n-propanol was the major compound recovered from the metabolism of propane by resting cells, although trace amounts of isopropanol and acetone were detected. when a mixture o ... | 1984 | 16346605 |
| characterization of phages derived from strains of rhodococcus australis and r. equii. | rhodococcus australis strain csir-a201 and r. equii strain csir-a655 spontaneously liberated phages a and b, respectively. the phages have different host ranges, but both infect r. rubropertinctus atcc 14352. phage infection of strains resulted in stable lysogeny. the phages have similar morphologies and belong to the family styloviridae. the dna restriction enzyme patterns of the phages differ and do not correspond to those of actinophage phi ec. these temperate phages did not transduce prototr ... | 1985 | 3980185 |
| menaquinone composition of mycolic acid-containing actinomycetes and some sporoactinomycetes. | the menaquinones of 141 actinomycetes representing the genera caseobacter, mycobacterium, nocardia, rhodococcus and some related taxa lacking mycolic acids were examined by mass spectrometry. the mycolic acid-containing strains were assigned to four groups on the basis of the predominant isoprenologue detected: rhodococcus coprophilus, r. equi, r. erythropolis, r. globerulus, r. rhodnii, r. rhodochrous and r. ruber contained dihydrogenated menaquinones with eight isoprene units; nocardia asteroi ... | 1985 | 3980298 |
| susceptibility of equine bacterial isolates to antimicrobial agents. | in vitro antimicrobic susceptibility patterns of commonly isolated aerobic gram-positive and gram-negative bacterial pathogens of equine origin were determined, using the agar-plate dilution method. all organisms were recent clinical isolates and included corynebacterium (rhodococcus) equi, corynebacterium pseudotuberculosis, (coagulase positive) staphylococcus sp, streptococcus equi, streptococcus zooepidemicus, actinobacillus sp, enterobacter cloacae, escherichia coli, klebsiella pneumoniae, p ... | 1985 | 3994111 |
| bacterial interactions in bovine respiratory and reproductive infections. | the ability of the aerobic bacterial flora from the normal bovine respiratory and reproductive tracts to enhance or inhibit the growth of pasteurella haemolytica, p. multocida, and haemophilus somnus was tested in vitro. six strains of each of these pathogens were cross streaked with each isolate of bovine normal flora. flora which enhanced the growth of these pathogenic bacteria outnumbered inhibitors four to one. an intermediate number of isolates produced no effect on pathogen growth. most en ... | 1985 | 3998115 |
| corynebacterium pseudotuberculosis exotoxin: fatal hemolytic anemia induced in gnotobiotic neonatal small ruminants by parenteral administration of preparations containing exotoxin. | inoculation of live corynebacterium pseudotuberculosis, culture supernatant, ammonium sulfate-fractionated crude exotoxin, or chromatographically purified exotoxin preparations into gnotobiotic small ruminants (n = 13) caused death of the ruminants within 48 hours. characteristic changes observed in animals living greater than or equal to 2 hours after inoculation included hemorrhage and edema at the site of injection, severe hemolytic anemia and hemoglobinuria, dark red fluid in body cavities, ... | 1985 | 4003896 |
| the incidence of rhodococcus (corynebacterium) equi in domestic animals and soil. | 1985 | 4032938 | |
| meningitis caused by gordona aurantiaca (rhodococcus aurantiacus). | in a case of hairy cell leukemia, gordona aurantiaca (rhodococcus aurantiacus) was isolated from cerebrospinal fluid as the pathogen responsible for lethal infection of the central nervous system. the pathogen had been isolated previously from one case of pulmonary infection process only. | 1985 | 4044805 |
| cefadroxil in the horse: pharmacokinetics and in vitro antibacterial activity. | sodium cefadroxil was administered as a single intravenous dose (25 mg/kg) to six healthy adult mares. plasma samples were collected over a 24-h period and cefadroxil concentrations were measured by microbiological assay. the pharmacokinetic behavior of the drug was appropriately described in terms of a one-compartment open model. values for the major pharmacokinetic terms were: extrapolated initial plasma concentration = 59.2 +/- 15.0 micrograms/ml; half-life = 46 +/- 20 min; apparent volume of ... | 1985 | 4057345 |
| enzyme-linked immunosorbent assay for diagnosis of corynebacterium (rhodococcus) equi infection in foals. | an enzyme-linked immunosorbent assay (elisa) was used to diagnose corynebacterium (rhodococcus) equi infection in foals. in tests done with different antigen-extraction procedures (sodium dodecyl sulfate, sodium deoxycholate, polyoxy-ethylene [9] p-tert-octylphenol, polyoxy-ethylene [9-10] p-tert-octylphenol, sonification, homogenization, and heat treatment at 121 c), tween 20 was a satisfactory reactive antigen. using hyperimmune rabbit sera or infected foal sera, we investigated the specificit ... | 1985 | 4062024 |
| further studies on thymidine kinase: distribution pattern of the enzyme in bacteria. | various micro-organisms (131 strains of 73 species) were studied for their ability to produce thymidine kinase (tk; ec 2.7.1.21). taking the specific tk activity of escherichia coli k12 [specific activity of sonicated cell extracts 95-194 pmol min-1 (mg protein)-1] as 100%, the test organisms had the following relative specific tk activities. in the gram-positive cocci, staphylococcus aureus (21-84%) showed higher activity than staph. epidermidis (1-20%) and streptococcus (1-7%) except for one s ... | 1985 | 4093763 |
| correlation of in vitro properties of rhodococcus (corynebacterium) equi with virulence for mice. | to study the virulence of rhodococcus (corynebacterium) equi, seven atcc strains of different serotypes were tested for their ld50 in mice, clearance of the organism from the lungs and spleen following intravenous or intratracheal inoculation, and in vitro interaction with murine peritoneal macrophages. strains atcc 33704 and 33705 were virulent for mice and multiplied in the lungs and spleen, resulting in death of the animal in 5 days. the other five strains were avirulent for mice. the number ... | 1985 | 3831718 |
| degradation of dimethylterephthalate by a rhodococcus species. | 1985 | 3879602 | |
| bacteriological methods for distinguishing between human and animal faecal pollution of water: results of fieldwork in nigeria and zimbabwe. | bacteriological techniques have traditionally been used to detect faecal pollution of drinking water supplies. recently, methods have been developed to distinguish between human and animal faecal pollution in temperate climates. the present study assessed the applicability and practicality of these methods in tropical countries. fieldwork in nigeria and zimbabwe has shown that animal faecal pollution can reliably be identified by the detection and enumeration of rhodococcus coprophilus using mod ... | 1985 | 3910299 |
| serodiagnostics of corynebacterium (rhodococcus) equi. | 1985 | 3922172 | |
| two techniques for detection of antibodies against corynebacterium (rhodococcus) equi in horse sera. | two techniques were developed to detect antibodies against the exosubstance of c. equi called equi-factor. in the first technique serum samples are tested against native equi-factor produced by the growth of c. equi on agar medium. a positive result is manifested by the development of precipitation lines. the second test is based on neutralization of prepurified equi-factor by antibody, resulting in the inhibition of its hemolytic synergism with staphylococcal beta toxin. sera (125 samples) from ... | 1985 | 3923693 |
| immunodiffusion and lipid analyses in the classification of "mycobacterium album" and the "aurantiaca" taxon. | comparative immunodiffusion studies were performed on representative strains of "mycobacterium album", the "aurantiaca" taxon and an "aurantiaca"-like group of actinomycetes, using reference systems representing 25 taxa assigned to the genera arthrobacter, corynebacterium, kurthia, mycobacterium, nocardia, rhodococcus, streptomyces and the "aurantiaca" taxon. thin-layer chromatographic analyses of whole-organism methanolysates were carried out on single strains of "mycobacterium album" and the " ... | 1985 | 3923731 |
| analysis of cellular fatty acids by gas chromatography as a tool in the identification of medically important coryneform bacteria. | the fatty acid methyl esters of nineteen unidentified pathogenic coryneform bacteria were analysed by gas-liquid chromatography and the resulting profiles were compared with those of type or reference strains of possibly related species, namely caseobacter polymorphus, corynebacterium bovis, c. diphtheriae, c. xerosis and rhodococcus equi. all of the strains had distinct fatty acid profiles but most of them conformed to a general pattern, with high levels of octadecanoic acids and only trace amo ... | 1985 | 3924876 |
| glutathione-independent isomerization of maleylpyruvate by bacillus megaterium and other gram-positive bacteria. | maleylpyruvate, the ring fission product of gentisic acid, was found to be isomerized to fumarylpyruvate without a requirement for glutathione by an enzyme activity found in cell extracts of m-hydroxybenzoate-grown bacillus megaterium 410. the isomerization reaction was detected as a shift in the absorbance maximum from 330 nm, the maximum for maleylpyruvate, to 345 nm, the maximum for fumarylpyruvate, when assayed at ph 8.0. ammonium sulfate precipitation and dialysis of b. megaterium cell extr ... | 1985 | 3926749 |
| the formaldehyde dehydrogenase of rhodococcus erythropolis, a trimeric enzyme requiring a cofactor and active with alcohols. | during growth on compounds containing methyl groups a formaldehyde dehydrogenase is induced in the gram-positive bacteria rhodococcus erythropolis. this formaldehyde dehydrogenase has been purified to homogeneity using affinity chromatography and permeation chromatography. the isoelectric point of the enzyme was 4.7. the molar mass of the native enzyme was determined as 130 000 g/mol. sodium dodecyl sulfate gel electrophoresis yielded a single subunit with a molar mass of 44000 g/mol. these resu ... | 1985 | 3160586 |
| review of corynebacterium (rhodococcus) equi lung abscesses in foals: pathogenesis, diagnosis and treatment. | corynebacterium (rhodococcus) equi is becoming increasingly significant as a cause of bronchopneumonia and lung abscessation in foals. the organism can survive within macrophages and may thus escape normal pulmonary defence mechanisms, particularly in immunocompromised animals. the disease has hitherto been associated with mortality rates as high as 80 per cent, partly as a result of inappropriate therapy. the selection of lipid-soluble antibiotics capable of intracellular penetration is critica ... | 1986 | 3535227 |
| [methods for isolating specific immune sera against bacteria of the genus rhodococcus]. | 1986 | 2478868 | |
| infection with rhodococcus equi in aids. | 1986 | 3940319 | |
| the metabolism of carbaryl by three bacterial isolates, pseudomonas spp. (ncib 12042 & 12043) and rhodococcus sp. (ncib 12038) from garden soil. | at an alkaline ph and in aqueous solution, carbaryl hydrolyses to form 1-naphthol, methylamine and carbon dioxide, but it is much more stable at an acid ph. two bacterial isolated from garden soil, pseudomonas sp. (ncib 12042) and rhodococcus sp. (ncib 12038), could grow on carbaryl as sole carbon and nitrogen source at ph 6.8 but failed to metabolize carbaryl rapidly. both could use 1-naphthol as sole carbon source and ncib 12042 metabolized 1-naphthol via salicylic acid which induced higher ex ... | 1986 | 3086270 |