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the redox potential of growing cultures of streptococcus bovis orla-jensen compared with other facultative anaerobes. 197833547
teichoic acids of group d streptococci with special reference to strains from pig meningitis (streptococcus suis).immunoelectrophoresis revealed in phenol extracts from s. faecalis and s. faecium a mixture of free and lipid-bound teichoic acids, both reactive with group d antisera. in phenol extracts from s. suis only lipid-bound teichoic acid, also reactive with group d antiserum, was seen. this difference probably accounts for the low yield of group d antigen from s. suis as compared with s. faecalis and s. faecium when heating at ph 2 is used for extraction. when phenol is used good yields are obtained f ...197745589
characterization of streptococcus bovis bacteriophages.about 25 streptococcus bovis bacteriophages were isolated from abattoir wastes, bovine rumen fluid, and lysogenic strains of s. bovis. eight phages were selected and characterized by morphology, stability, rate of adsorption, single-step growth curve, serum neutralization, and antigenic relationship. two distinct morphological phage types were found, one of which has not been previously reported for group d streptococci.197658706
streptococcus bovis endocarditis and colonic cancer. 197876763
streptococcus bovis septicemia as a clue to colon neoplasms in two cases. 1978101050
treatment of bacterial endocarditis with vancomycin.five patients with bacterial endocarditis who were allergic to penicillin were treated successfully with vancomycin. the causative microorganisms were streptococcus bovis, s faecalis, s agalactiae, s intermedius, and staphylococcus aureus. except for the strain of s faecalis, vancomycin was bactericidal against these organisms at easily achievable serum concentrations. to insure a bactericidal serum titer of 1:8 or greater, streptomycin was added in the therapy of the case caused by s faecalis. ...1978104623
effect of serum on gram-positive cocci grown in the presence of penicillin.strains of staphylococcus aureus, streptococcus faecalis, streptococcus bovis, and a strain of streptococcus that produces filaments were grown on agar containing penicillin at concentrations of one-half to 1/10th the minimal inhibitory concentration. these penicillin-exposed organisms as well as untreated control organisms were incubated with human serum of plasma. both serum and plasma produced a remarkable bactericidal effect on the filament-forming streptococcus grown in the presence of peni ...1978105057
incidence and relationship of group d streptococci with other indicator organisms in meats.raw and processed meats were analyzed for presumptive group d streptococci using kf streptococcus agar. counts were compared with coliform, presumptive escherichia coli, and enterobacteriaceae counts but no meaningful relationships were observed. results indicated that group d streptococci and e. coli type i were principally contaminants from the packing plant, rather than at retail level. the predominating group d streptococcus in both beef and pork cuts was streptococcus faecalis, while in pro ...1978106944
carriage of group d streptococci in the human bowel.sixty faecal samples, 39 from adults and 21 from neonates, were investigated by means of a simple scheme to isolate and identify any group d streptococci present. a number of differences were found between the two groups. group d streptococci were absent from 43% of the neonates compared with only 13% of the adults; streptococcus bovis was commoner in the neonates (23.8%) than in the adults (5%), and streptococcus faecium was not isolated from any of the infant samples although it was common in ...1978107199
generation rates of faecal streptococci in various vehicles.potassium tellurite media gave the highest detrimental effects on the generation number of all tested faecal streptococci species. this applies to all investigated vehicles. however, drastic tellurite effects became more conspicuous with certain vehicles than with others. this is particularly true with acid and alkaline foods and water, especially with strains like streptococcus bovis, str. faecium, and str. durans. again, tellurite becomes more influencial with regard to old cells rather than y ...1978107679
bacteriological quality of runoff water from pastureland.runoff from a cow-calf pasture in eastern nebraska was monitored for total coliforms (tc), fecal coliforms (fc), and fecal streptococci (fs) during 1976, 1977, and 1978. bacteriological counts in runoff from both grazed and ungrazed areas generally exceeded recommended water quality standards. the fc group was the best indicator group of the impact of grazing. rainfall runoff from the grazed area contained 5 to 10 times more fc than runoff from the fenced, ungrazed area. there was little differe ...1979114112
[kinetics of setting up of a human fecal flora in germ free mice and trial of decontamination of antibiotherapy (author's transl)].we have tried in this study to reproduce in germfree mice a bacterial equilibrium observed previously in the gastrointestinal tract of child "l.n.", reared in a plastic isolator. eight bacterial strains were studied. seven had been fortuitously introduced: acinetobacter lwoffi ln1, staphylococcus epidermidis ln2, clostridium perfringens ln3, plectridium anatum ln4, streptococcus bovis ln5, enterobacter cloacae ln6, corynebacterium sp ln7. the eighth strain was purposely administered to the child ...1975174472
glucose-6-phosphate-dependent pyruvate kinase in streptococcus mutans.pyruvate kinase of streptococcus mutans jc 2 had an absolute and specific requirement for glucose-6-phosphate. inorganic phosphate was a strong inhibitor. the enzyme required k+ or nh4+ and mg2+ or mn2+. s. mutans fil and e 49, streptococcus bovis atcc 9809, and streptococcus salivarius atcc 13419 had also glucose-6-phosphate-dependent pyruvate kinases, whereas streptococcus sanguis nctc 10904 had an enzyme activated by fructose-1,6-diphosphate.1975240810
infective endocarditis caused by streptococcus bovis resistant to the lethal effect of penicillin g.penicillin g alone is generally recommended for the treatment of infective endocarditis caused by streptococcus bovis because clinical isolates of s bovis are represented as being uniformly and markedly susceptible to penicillin g. however, two strains of s bovis recovered from two patients with bacterial endocarditis were resistant to the lethal effect of penicillin g. combination therapy, cefazolin sodium and gentamicin sulfate in patient 1 and penicillin g and gentamicin in patient 2, was nec ...1978246729
succession of streptococcus bovis strains with differing bacteriophage sensitivities in the rumens of two fistulated sheep.the bacteriophage sensitivity of the streptococcus bovis population resident in the rumens of two fistulated sheep was monitored for 112 days. during this time, three changes in the bacteriophage sensitivity of s. bovis occurred in the absence of detectable bacteriophages. identical changes in bacteriophage sensitivity occurred simultaneously in both animals and, except for the relatively short periods of changeover in phage sensitivity, the s. bovis population in the rumens of the two sheep was ...1977326185
association of streptococcus bovis with carcinoma of the colon.two patients with colonic adenocarcinoma and streptococcus bovis endocarditis suggested a possible association between the two. non-enterococcal group d streptococci were isolated from fecal cultures of 11 of 105 controls, 35 of 63 patients with carcinoma of the colon, seven of 25 with inflammatory bowel disease, four of 21 with non-colonic neoplasms and five of 37 with other gastrointestinal disorders. all such streptococci examined for lactose fermentation were s. bovis. the prevalence of s. b ...1977408687
isolation of streptococcus equinus from non-respiratory sources in children.streptococcus equinus, a non-enterococcal streptococcus, was isolated with increased frequency in a pediatric population.1977410829
fulminant neonatal septicemia caused by streptococcus bovis. 1978413898
gentamicin-based medium for the isolation of group d streptococci and application of the medium to water analysis.gentamicin-thallous-carbonate (gtc) medium contained (per liter): 40.0 g of trypticase soy agar, 5.0 g of kh(2)po(4), 2.0 g of nahco(2), 1.0 g of glucose, 1.0 g of esculin, 0.5 g of thallous acetate (ta), 0.5 g of ferric citrate, 0.75 ml of tween 80, and 2.5 mg of gentamicin sulfate. the nahco(3) (20 ml of a 10% solution that had been heated to boiling) was added after sterilization of the basal medium. the spread plate technique was used to compare gtc agar with pfizer selective enterococcus, t ...1978416754
detection of group d and viridans streptococci in blood by radiometric methods.a prospective study was conducted to evaluate the radiometric detection of group d and viridans streptococci in blood, using three media preparations, bactec 6a and 6b isotonic media and 8b hypertonic medium. all enterococci tested were detected by the 6a and 6b media. however, the 6a medium failed to detect 76% of the streptococcus bovis isolates and 57% of the viridans streptococci, whereas all s. bovis isolates and 95% of the viridans streptococci were detected with the 6b formulation. no imp ...1979429537
serologic studies of streptococcus intermedius, streptococcus constellatus, and streptococcus morbillorum by crossed immunoelectrophoresis.a reference antigen-antibody system for streptococcus intermedius, streptococcus constellatus, and streptococcus morbillorum was established with crossed immunoelectrophoresis. a comparison of s. intermedius, s. constellatus, and s. morbillorum with crossed immunoelectrophoresis and crossed immunoelectrophoresis with intermediate gel indicated that s. intermedius and s. constellatus are closely related antigenically with as many as six common cytoplasmic antigens. s. morbillorum was antigenicall ...1979453098
streptococcus bovis--an approach to its classification and its importance as a cause of bovine mastitis. 1979479054
streptococcus bovis septicemia and carcinoma of the colon.we prospectively studied patients with streptococcus bovis septicemia for the presence of gastrointestinal lesions. this study was prompted by our reported findings of the association of fecal carriage of s. bovis with carcinoma of the colon. we studied 29 patients with 30 episodes of s. bovis septicemia. fifteen completed gastrointestinal evaluations that included colonscopy, surgery, or autopsy. eight of these had carcinoma of the colon, three had adenomatous polyps of the colon without carcin ...1979484953
streptococcus bovis meningitis in a neonate.neonatal infections have been caused by streptococcus bovis, a nonenterococcal group d streptococcus. a recent case of neonatal meningitis caused by this organism prompted a literature review regarding appropriate antibiotic therapy. although most reports suggested penicillin therapy alone for s bovis meningitis, isolates of this organism that were as resistant to the lethal effect of penicillin as the enterococcus have been recovered. therefor, it was recommended that until the results of minim ...1979507006
[clinical significance of streptococcus bovis bacteremia. 5 observations]. 1979525192
comparative in vitro activity of ly 127935 (6059-s), seven cephalosporins, three aminoglycosides, carbenicillin, and ticarcillin.ly 127935 (6059-s), a new semi-synthetic beta-lactam antibiotic was tested simultaneously with 6 cephalosporins, 3 aminoglycosides, carbenicillin and ticarcillin against 398 clinical isolates of gram-negative bacilli and gram-positive cocci. many of the organisms were selected for study because of known resistance to one or more of the clinically available antibiotics tested. escherichia coli, klebsiella, serratia and providencia were susceptible to ly 127935. some resistant strains of enterobac ...1979528361
sensitivity of streptococcus bovis to various antibiotics. 1979528412
evaluation of commercial latex agglutination reagents for grouping streptococci.a total of 155 strains of beta-hemolytic streptococci were serologically grouped by conventional techniques (lancefield extraction and capillary precipitin testing) and by latex agglutination (la). agreement between conventional and la techniques was 97% when the instructions of the manufacturer for the la technique were followed. agreement of 99% was obtained when modified autoclave extracts were used as antigens in the la procedure. a total of 82 strains of non-beta-hemolytic streptococci were ...1979544632
[association of gastric polyposis and subacute endocarditis due to streptococcus bovis]. 1979554088
effects of heavy metals and other trace elements on the fermentative activity of the rumen microflora and growth of functionally important rumen bacteria.the inhibitory effects of high concentrations of essential and non-essential trace elements were tested on the rumen microflora using the rate of fermentation in vitro as the assay. the elements (and the concentration causing 50% inhibition) in decreasing order of toxicity were hg2+ (20 microgram/ml), cu2+ (21 microgram/ml), cr6+ (70 microgram/ml), se4+ (73 microgram/ml), ni2+ (160 microgram/ml), cd2+ (175 microgram/ml), as3+ (304 microgram/ml) and as5+ (1610 microgram/ml). the elements tested t ...1978565671
production of branched-chain volatile fatty acids by certain anaerobic bacteria.net production of isobutyric acid, isovaleric acid, and 2-methylbutyric acid by cultures of bacteroides ruminicola and megasphaera elsdenii on media that contained trypticase or casein hydrolysate continued (up to 5 days) after growth had ceased. only trace quantities of these acids were produced in a medium that contained a mixture of amino acids that did not include the branched-chain amino acids. m. elsdenii produced increased quantities of the branched-chain fatty acids in a medium that cont ...1978566082
determination of the sugar sequences and the glycosidic-bond arrangements of immunogenic heteroglycans.the complete sugar sequences and glycosidic-bond arrangements have been determined by a combined analytical scheme for a diheteroglycan of d-glucose and d-galactose and a tetraheteroglycan of 6-deoxy-l-talose, l-rhamnose, d-galactose, and d-glucuronic acid. the analytical scheme included methylation analysis by g.l.c. and mass spectrometry, periodate oxidation followed by borohydride reduction and identification of the residual fragments, enzymic hydrolysis followed by characterization of the mo ...1978620418
more on streptococcus bovis endocarditis and bowel carcinoma. 1978625315
streptococcus bovis bacteremia and underlying gastrointestinal disease.twenty-six adults with streptococcus bovis endocarditis and ten with bacteremia alone were studied to determine possible portals of entry. of 36 patients (17 with endocarditis, eight with bacteremia alone), 25 had gastrointestinal lesions or manipulation. in 22, the gastrointestinal tract appeared to be the source of s bovis bacteremia. four patients had either carcinoma of the colon (two) or potentially malignant villous adenomas (two) when first seen because of s bovis bacteremia. none of thes ...1978666468
streptococcus bovis endocarditis with carcinoma of the colon. 1978709292
[the association of a digestive carcinoma and subacute endocarditis. 4 cases (author's transl)].attention has recently been drawn to the association of digestive carcinoma and streptococcus bovis endocarditis. the authors studied 130 records of patients with endocarditis and an association with a digestive tumour (3 neoplasms, one villous tumour) was found in four. streptococcus bovis was demonstrated in one case, streptococcus faecalis in two and streptococcus durans in one. the association of carcinoma and subacute endocarditis would thus seem to not solely relate to digestive commensual ...1978714665
streptococcus bovis and colonic lesions. 1978717979
streptococci isolated from bovine intramammary infections.streptococcal isolates from 71 dairy herds considered free of streptococcus agalactiae were compared with isolates from 1 herd used in bovine mastitis research over a 12-year period. the incidence of streptococci was as follows: streptococcus uberis, 56.5%; enterococci, 24.2%; streptococcus dysgalactiae, 9.0%; streptococcus bovis, 5.1%; unclassified streptococci, 3.1%; streptococcus agalactiae, 1.5%; and lancefield group g streptococci, 0.7%. the incidence for these streptococci in the 2 groups ...1976817626
effects of subinhibitory concentrations of antibiotics on cross walls of cocci.cultures of staphylococcus aureus, neisseria gonorrhoeae, and streptococcus bovis were incubated on membrane filters on agar containing antibiotics at one-third to one-fourth the minimal inhibitory concentration for the particular bacterial strain. s. aureus was grown in the presence of oxacillin, cephaloridine, or lincomycin. n. gonorrhoeae and s. bovis were grown in the presence of penicillin. the membranes were then incubated in drug-free agar, after which viability was determined and the cel ...1976820243
glucose-1-phosphate as a selective substrate for enumeration of bacteroides species in the rumen.when glucose-1-phosphate was used as the only added energy source in a selective roll tube medium, colony counts for rumen contents ranged from 17.8 to 84.8% of the total culturable count. percentages were highest in rumen contents from sheep fed high-concentrate rations. from a total of 73 cultures isolated from glucose-1-phosphate roll rubes, only 15.1% were presumptively identified as bacteroides species. strains presumptively identified as butyrivibrio, selenomonas, treponema, streptococcus ...1977869544
vancomycin.vancomycin, a useful bactericidal antibiotic for selective clinical infections, is the therapy of choice for serious staphylococcal infections when the penicillins and cephalosporins cannot be used. the antibacterial spectrum of vancomycin also covers other gram-positive cocci and bacteria and gram-negative cocci. vancomycin is given intravenously in most cases, usually in a dose of 1 g every 12 hours in patients who have normal renal function. the indications for vancomycin therapy are as follo ...1977909314
streptococcus bovis endocarditis with carcinoma of the colon. 1977917098
lysogeny in streptococcus bovis.forty-eight strains of streptococcus bovis were tested for induction with mitomycin c. eleven inducible strains were found and the lysates of all 11 contained bacteriophage-like particles. the lysate of one strain also contained large numbers of particles which closely resembled polyheads. eight of the lysates produced zones of inhibition on indicator strains and viable bacteriophages were detected in six lysates. the sources of the s. bovis were ovine and bovine rumen fluid (23 strains), ovine ...1976945121
bacteriocins of streptococcus bovis.forty-seven strains of streptococcus bovis were tested for bacteriocin production. fourteen were found to produce bacteriocins, while all 47 were sensitive to at least one of these bacteriocins. the bacteriocins, on the basis of their host range on s. bovis strains, formed six groups. a representative of each group was selected and characterized by temperature stability, sensitivity to trypsin and lipase, sedimentation by centrifugation, ability to pass through dialysis tubing, host range on oth ...1976963612
glycans from streptococcal cell walls. the molecular structure and immunological properties of an antigenic glycan from streptococcus bovis. 1976970959
use of mueller-hinton agar as amylase testing medium.readily available mueller-hinton agar was used to detect starch hydrolysis by streptococcus bovis.1976972196
[biological properties of streptococcus bovis bacteriophages isolated from lysogenic cultures and sheep rumen].biological characteristics of eleven phages for streptococcus bovis were investigated; seven phage were isolated from ovine rumen and four were virulent mutants of temperate phages of lysogenic cultures. the phages had many properties in common: similar morphology of negative colonies, the identical spectrum of lytic action, related antigens, absolute or high requirement of calcium ions, thermolability, and inactivation by the content of the rumen. their susceptibility to the inactivating action ...1976979689
meningitis caused by streptococcus in adults.meningitis caused by streptococcus is uncommon in adults. otitis media, mastoiditis, sinusitis, or trauma has antedated most cases reported in the past. data on 10 recent cases suggest changes in the current pathogenesis of streptococcal meningitis in adults and emphasize the importance of accurate streptococcal speciation. endocarditis was present in five cases; trauma played a role in two others. brain abscess, corticosteroids, alcoholic cirrhosis, and peritonitis secondary to chronic peritone ...19751092775
susceptibility of various serogroups of streptococci to clindamycin and lincomycin.the minimal inhibitory concentration of lincomycin and clindamycin for a large number of strains from multiple serogroups of streptococci was determined. the median minimal inhibitory concentration for streptococci from groups a, b, c, f, g, h, l, and m and nongroupable organisms ranged from 0.02 to 0.39 mug of lincomycin per ml and from </=0.01 to 0.09 mug of clindamycin per ml. among the group d strains, streptococcus faecium and streptococcus faecalis were resistant to lincomycin and clindamy ...19751137367
isolation and identification of rumen bacteria capable of anaerobic phloroglucinol degradation.eight strains of rumen bacteria capable of degrading phloroglucinol (1,3,5-trihydroxybenzene) under anaerobic conditions were isolated from enrichment cultures of the bovine rumen microflora established in a prereduced medium containing 0.02 m phloroglucinol. five of the strains were facultatively anaerobic gram-positive streptococci which were identified as streptococcus bovis. three strains of obligately anaerobic gram-positive cocci were assigned to the genus coprococcus. anaerobic cultures o ...19751170929
regulation of lactate dehydrogenase and change of fermentation products in streptococci.streptococcus mutans jc 2 produced mainly lactate as a fermentation product when grown in nitrogen-limited continuous culture in the presence of an excess of glucose and produced formate, acetate, and ethanol, but no lactate, under glucose-limited conditions. the levels of lactate dehydrogenase (ldh) in these cultures were of the same order of magnitude, and the activity of ldh was completely dependent on fructose-1,6-diphosphate (fdp). the intracellular level of fdp was high and the level of ph ...19751176435
presumptive speciation of streptococcus bovis and other group d streptococci from human sources by using arginine and pyruvate tests.a simplified method for speciation of group d streptococci is described. a total of 4,156 streptococcal isolates from human clinical material was tested for ability to hydrolyze esculin in the presence of 40% bile, ferment pyruvate, hydrolyze arginine, and grow in media containing 40% bile or 6.5% nacl. streptococci which hydrolyzed esculin in 40% bile, but which did not hydrolyze arginine, were also tested for their ability to ferment raffinose or sorbose. sixty percent (2,503) of the isolates ...19751176592
frothy feedlot bloat in cattle: production of extracellular polysaccharides and development of viscosity in cultures of streptococcus bovis.streptococcus bovis was cultured in a synthetic medium with three concentrations of sucrose. initial viscosity of the media was 1.5 centipoise (cp). after incubation for 8 h, the viscosity of the medium with 0.5% sucrose was unchanged, that with 3% sucrose had increased to 8 cp, and that with 6% sucrose to 112 cp. similar results were found with a rumen fluid medium. a slimy material, responsible for increased viscosity of these cultures, was digested by dextranase. the material appeared as a co ...19761260538
growth and morphology of streptococcus bovis and of mixed rumen bacteria in the presence of aflatoxin b1, in vitro.the metabolism of aflatoxin b1 to other fluorescent compounds was studied in rumen organisms. no fluorescent metabolites were found by chromatographic procedures which separate aflatoxin b1 from them. rumen bacteria (mixtures and streptococcus bovis) incubated with aflatoxin b1 grew in long chains whereas cells in control cultures were mainly doublets with some short chains. growth of mixed rumen bacteria and streptococcus bovis cultures was inhibited by aflatoxin b1 as measured by change in opt ...19761262566
dap-decarboxylase activity and lysine production by rumen bacteria.the last step of pathway of lysine biosynthesis by rumen bacteria was tested. the first measurements of dap-decarboxylase activity and of lysine production by megasphera elsdenii, selenomonas ruminantium, clostridium spp., butyrivibrio fibrisolvens and bacteroides succinogenes as well as the first attempts to increase the lysine production by ruminal streptococci by mutation are described. the highest values were measured in selenomonas ruminantium (dap-decarboxylase activity = 146 micrograms da ...19921295484
[evaluation of usefulness of the pyr-wellcome test for identifying microorganisms from the genus enterococcus].the study was aimed at evaluation of usefulness of pyr-wellcome test in bacteriological diagnostic. results of identification of enterococcal strains by application of the above test were performed on 157 strains of enterococcus spp., 15 strains of streptococcus pyogenes and 12 of streptococcus bovis. application of test for pyr-ase production results in shortening of diagnostic procedure. basing on morphological features, including type of hemolysis, lack of catalase production and presence in ...19921297028
[the effect of culture media on bacteriocin production in various strains of bacteria].some staphylococcus and enterococcus strains were used to investigate the effect of culture medium on bacteriocin production. staphylococcus cohnii sc7, staphylococcus sp. ztj 151, s. saprophyticus ss 877, enterococcus faecium ef1 and e. faecalis efg2 were isolated from the rumen wall and contents of lambs, calves and fallow deer, enterococcus gallinarum eg10 and e. avium ea12 were isolated from the caecum of japanese quail. the tested bacteria belong to producers with a wide antimicrobial effec ...19921297243
[problems posed by the association of streptococcus d infectious endocarditis and colorectal tumor].the problems arising from the discovery of a colorectal tumor during an infectious endocarditis caused by streptococci d have rarely been mentioned in the surgical literature. the frequency of association of an asymptomatic colorectal tumor and of a streptococcus bovi endocarditis is now undisputed. this notion implies the systematic search for an intestinal lesion (adenoma or carcinoma) in case of endocarditis or septicemia without involvement of the valves, caused by a streptococcus of group d ...19921339726
adherence of ruminal streptococcus bovis and lactobacillus strains to primary and secondary cultures of rumen epithelium.six strains of rumen lactobacillus and four streptococcus bovis strains isolated from rumen wall and fluid samples were examined for the adherence to cells of primary and secondary cultures of ruminal epithelium (rec) prepared from sheep and calf. s. bovis adhered to the keratinized rec. ruminal lactobacilli did not adhere. the presence of rumen lactobacilli in mixture had no influence on the adherence of s. bovis strains. no difference was observed in the adherence of tested bacteria to epithel ...19921343946
streptococcus bovis endocarditis associated with colonic adenocarcinoma: report of a case.streptococcus bovis (s. bovis) endocarditis has been increasing over recent decades, especially among the senile population. a 74-year-old man presented with intermittent fever for two months. he had a past history of aortic dissection and underwent a bentall operation one year before admission. a janeway lesion was noted on his right hand and six blood cultures grew s. bovis. he was treated with penicillin-g, 3 microu intravenously, every six hours, and became afebrile three days later. a colon ...19921362122
peptide and amino acid transport in streptococcus bovis.in amino acid transport studies with streptococcus bovis using 14c-labelled amino acids, it has been shown that between 87% and 95% of cell-associated radioactivity was located in the cytosol. in similar studies with unlabelled peptides, most test peptide associated with s. bovis was truly intracellular. using sodium dodecyl sulphate-polyacrylamide gel electrophoresis, the proteolytic activity in s. bovis was found to be largely cell-associated and of the serine-protease type, but stimulated by ...19901366976
characterization of enterococcal isolates by restriction enzyme analysis of genomic dna.a restriction enzyme analysis (rea) of chromosomal dna for the intra-species characterization of enterococci is reported. the dna was extracted by a rapid method and digested with the restriction enzyme sal i to provide a characteristic 'fingerprint' consisting of 10-20 bands in the 1.6-5.0 kb range. one hundred and eighty enterococcal isolates were examined; 5 were type strains, 15 from an out-patient clinic and 160 from a geographically isolated british antarctic survey base. the epidemiologic ...19921379935
cloning and expression of an amylase gene from streptococcus bovis in escherichia coli.an amylase gene was identified in a streptococcus bovis 033 lambda gtwes lambda b genomic library. using a starch overlay and a congo red-iodine staining procedure, amylase positive clones could be identified by zones of clearing. ten amylase positive clones were identified using this procedure. the clone chosen for further study, lambda sba105, contained an insert of approximately 7.5 kb. the insert was mapped, and subcloning localized the amylase gene to a region of approximately 3.1 kb. cloni ...19921380794
4-week treatment of streptococcal native valve endocarditis with high-dose teicoplanin.the efficacy and safety of a 4-week course of intravenous teicoplanin (500 mg every 12 h for the first 2 days and 10 mg/kg of body weight every 24 h thereafter) in the treatment of streptococcal native valve endocarditis in 20 patients were evaluated. all blood isolates were inhibited by a concentration of 0.12 micrograms of teicoplanin per ml. serum bactericidal activity levels were measured 1/2 and 24 h after antibiotic infusion on days 5 to 7 of therapy in 19 patients, and titers of greater t ...19921386972
biochemical and antigenic properties of streptococcus bovis isolated from pigeons.biochemical and serological properties of 60 strains of streptococcus bovis isolated from healthy pigeons and from pigeons that died from s. bovis septicemia were determined. on the basis of the hemolysis of bovine erythrocytes, the production of polysaccharides on saccharose-containing media, and the fermentation of mannitol, inulin, trehalose, and l-arabinose, the isolates were classified in five biotypes and two subbiotypes. slide agglutination and microagglutination tests using monospecific ...19921401011
[spondylodiscitis in a cirrhotic patient with penicillin g tolerant streptococcus bovis septicemia]. 19921409468
rheumatic manifestations of infective endocarditis.rheumatic manifestations are common and varied in infective endocarditis. we performed a retrospective case analysis on 87 patients with 93 episodes of infective endocarditis admitted to flinders medical centre over an 11 year period (1980-1990). disabling musculoskeletal symptoms and signs were documented in 22 (25%) of the patients. thirteen patients developed severe or moderately severe low back pain during their illness, two with radiological evidence of a septic discitis or vertebral osteom ...19921411084
[adenocarcinoma of the colon disclosed by endocarditis caused by streptococcus bovis].the association of streptococcus bovis endocarditis with colonic neoplasms has been well documented. we describe a patient in whom the finding of a str. bovis endocarditis stimulated investigation which resulted in the diagnosis and surgical treatment of an adenocarcinoma of the colon.19921414475
clinicopathology of meningoventriculitis due to streptococcus bovis infection in neonatal calves.three neonatal calves ranging in age from 4 to 14 days were examined pathologically and bacteriologically. the calves showed depression, anorexia, pyrexia, and difficulty or inability to stand followed by cloudiness of the ocular aqueous humor or cornea. autopsy revealed congestion, petechiae, and cloudy areas in the meninges. histologically, the central nervous system (cns) lesions were prominent and limited to the meninges where fibrinous exudate and infiltrations of neutrophils, macrophages, ...19921420567
the effect of ph on the heat production and membrane resistance of streptococcus bovis.non-growing cultures of streptococcus bovis jb1 which were incubated in 2-[n-moropholino] ethane-sulfonic acid (mes)-phosphate buffer (ph 6.8) and glucose (2 g/l) produced heat at a rate of 0.17 mw/mg protein, and this rate was proportional to the enthalpy change of the homolactic fermentation. since the growth-independent heat production could be eliminated by dicyclohexylcarbodiimide (dccd), an inhibitor of f1f0 atpases, it appeared that virtually all of the energy was being used to counteract ...19921444715
experimental streptococcus bovis infections in pigeons.thirty pigeons were experimentally infected with streptococcus bovis using an intravenous infection model. ninety percent of the inoculated pigeons developed clinical disease. disease signs included acute death, inability to fly, lameness, inappetence, emaciation, polyuria, and the production of slimy, green droppings. at necropsy, the septicemic character of the disease was evident. typical lesions included extensive well-circumscribed areas of necrosis in the pectoral muscle, tenosynovitis of ...19921485874
culture media for enterococci and group d-streptococci.lancefield group d-streptococci are contaminants of various food commodities, especially those of animal origin. they encompass the new genus enterococcus comprising 13 known species and some species of streptococci which have their habitat in the intestine of animals, e.g. streptococcus bovis, suis and equinus. the serologically based grouping may no longer constitute the best definition for streptococci from the food chain. food hygiene monitoring systems using enterococci as indicators need r ...19921486020
treatment of endocarditis due to penicillin-susceptible streptococci with a two-week course of ceftriaxone followed by oral amoxicillin. 19921486896
[bacteremia caused by s. bovis and cirrhosis]. 19921489800
streptococcus bovis endocarditis as a presenting manifestation of idiopathic ulcerative colitis.streptococcus bovis bacteraemia and endocarditis have been associated with several gastrointestinal diseases, mainly malignant or potentially malignant tumours, and less commonly non-malignant gastrointestinal disorders. we describe a 73 year old man in whom streptococcus bovis endocarditis developed, and was the presenting manifestation of undiagnosed quiescent ulcerative colitis. such an association has not been described previously.19921494518
interaction of ruminal bacteria in the production and utilization of maltooligosaccharides from starch.the degradation and utilization of starch by three amylolytic and one nonamylolytic species of ruminal bacteria were studied. pure cultures of streptococcus bovis jb1, butyrivibrio fibrisolvens 49, and bacteroides ruminicola d31d rapidly hydrolyzed starch and maltooligosaccharides accumulated. the major starch hydrolytic products detected in s. bovis cultures were glucose, maltose, maltotriose, and maltotetraose. in addition to these oligosaccharides, b. fibrisolvens cultures produced maltopenta ...19921539992
enterococcal and streptococcal species isolated from faeces of calves, young cattle and dairy cows.faeces from non-ruminating calves were found to contain several species of enterococci: enterococcus avium, ent. cecorum, ent. durans, ent. faecalis, ent. faecium and ent. hirae. enterococcus faecalis was the most frequent. few of these animals carried streptococci. streptococcus bovis largely predominated in ruminating calves, young cattle and dairy cows. other streptococci as well as enterococci were infrequent in dairy cows, but a variety of other streptococci and enterococci were found in th ...19921541597
[septic arthritis due to streptococcus bovis].a 47-year-old man presented with arthritis of the right shoulder and spondylodiscitis by streptococcus bovis. this microorganism is a frequent cause of endocarditis and has been associated with gastrointestinal neoplasm, mainly carcinoma of the colon; however up to the present it had not been described as an causal agent of septic arthritis. the studies carried out on the patient permitted the exclusion of the existence of a digestive neoplasm and endocarditis. despite a prolonged evolution prio ...19921552764
fecal carriage of streptococcus bovis and inflammatory bowel disease. 19921568603
streptococcus bovis meningitis associated with a colonic villous adenoma. 19921576301
antimutagenicity of milk cultured with lactic acid bacteria against n-methyl-n'-nitro-n-nitrosoguanidine.the antimutagenic effect of cultured milk using 71 strains of lactic acid bacteria belonging to the genus lactobacillus, streptococcus, lactococcus, and bifidobacterium on the mutagenicity of n-methyl-n'-nitro-n-nitrosoguanidine was investigated in vitro using salmonella typhimurium ta 100 as an indicator bacterium. each cultured milk sample displayed its characteristic antimutagenic effect on the mutagenicity of n-methyl-n'-nitro-n-nitrosoguanidine. the milk cultured with lactobacillus acidophi ...19921578035
microflora of the pouch of the koala (phascolarctos cinereus).microflora of the pouch epithelium of 17 female koalas (phascolarctos cinereus) were examined in relation to their current reproductive status and recent reproductive history. no microbial growth was observed in pouch swabs from 13 of 17 (76%) koalas, including four females without young, seven with pouch young and two with back young (i.e. permanently emerged from the pouch). growth of bacteria or yeasts was observed in pouch swabs from four koalas, each of which had experienced mortality of it ...19921602580
etiology and antibiotic susceptibility of bloodstream streptococcus sp.249 episodes of streptococcus bacteraemia in hospitalized patients were evaluated for both clinical and microbiological features. specification of the isolates demonstrated that infective endocarditis was predominantly associated with streptococcus sanguis and streptococcus bovis whereas streptococcus pyogenes and streptococcus milleri were the most common cause of local and/or systemic infections. in vitro-susceptibility tests towards 9 selected antibiotics proved that beta-lactam antibiotics a ...19921611209
[a man of 68 with infectious endocarditis who died suddenly]. 19921620945
tannin-protein complex-degrading enterobacteria isolated from the alimentary tracts of koalas and a selective medium for their enumeration.tannin-protein complex (t-pc)-degrading enterobacteria (t-pcde) were isolated from the feces and from a layer of bacteria attached to the cecal wall of koalas. the t-pcde were facultatively anaerobic, gram-negative, pleomorphic, nonmotile bacilli. the bacteria were also oxidase and catalase negative and resistant to vancomycin, reduced nitrates to nitrites, and grew on macconkey agar. growth on tannin-treated agar media showed a distinctive clear zone around the colony. from these observations, ...19921622248
in-vitro activity of win 57273 compared to the activity of other fluoroquinolones and two beta-lactam antibiotics.win 57273, a new fluoroquinolone, was four to 128-fold more active than ciprofloxacin and ofloxacin against gram-positive bacteria. the mic90 for staphylococcus aureus was 0.015 mg/l and for s. epidermidis, 0.03 mg/l. all lancefield group a, b, c, & g streptococci, streptococcus bovis and s. pneumoniae were inhibited by less than or equal to 0.06 mg/l compared to 0.5 mg/l for tosufloxacin and 2 mg/l for ciprofloxacin. for anaerobic bacteria win 57273 had an mic90 for bacteroides of 1 mg/l, and f ...19911657856
introduction of tn916 and pam beta 1 into streptococcus bovis jb1 by conjugation.the transposon tn916 and self-mobilizing plasmid pam beta 1 were conjugated from enterococcus faecalis to the ruminal bacterium streptococcus bovis jb1. transconjugants were identified by resistance to tetracycline (tn916) or erythromycin (pam beta 1) and by southern hybridization analyses. transfer frequencies were 7.0 x 10(-6) and 1.0 x 10(-6) per recipient cell for tn916 and pam beta 1, respectively. the transconjugants jb1/tn916 and jb1/pam beta 1 were used as donors for matings with e. faec ...19911662940
[in vitro bactericidal effect of temafloxacin and tosufloxacin against streptococci].tosufloxacin tosylate (tosu) and temafloxacin hydrochloride (tema) were tested in vitro against 248 clinical isolates of various species of streptococci recovered in a hospital microbiology laboratory (bellevue regional teaching hospital). species included s. pneumoniae (n = 20), group a streptococci (n = 22), group b streptococci (n = 30), group g streptococci (n = 17), group d s. bovis (n = 19), enterococcus faecium (n = 45), enterococcus faecalis (n = 28), s. sanguis (n = 21), s. milleri (n = ...19911666667
selection and application of streptococcus bovis as a silage inoculant.three strains of streptococcus bovis, a homolactic bacterium capable of utilizing starch, were evaluated for growth kinetics and ability to decrease the ph of alfalfa silage. a selected strain was evaluated for its competitiveness as an inoculant with enterococcus faecium, an organism used in inoculants, and for its ability to enhance the effect of a commercial inoculant. testing was completed over three studies using wilted alfalfa (28 to 34% dry matter) ensiled into laboratory silos. treatment ...19911746960
phenotypic characterization of co2-requiring strains of streptococcus bovis from koalas.we examined phenotypic characteristics of six mannitol-fermenting strains of streptococcus bovis, including two unusual co2-requiring strains isolated from koala feces. these strains did not grow in air, but grew in air supplemented with co2 and under reduced oxygen conditions. all six strains had the same biochemical characteristics, except that the co2-requiring strains did not produce beta-n-acetylglucosaminidase.19911746961
a survey of peptidase activity in rumen bacteria.twenty-nine strains of 14 species of rumen bacteria were screened for their ability to hydrolyse ala2, ala5, glyarg-4-methoxy-2-naphthylamide (glyarg-mna) and leu-mna. several species, notably megasphaera elsdenii, were active against ala2, and a smaller number, including bacteroides ruminicola, butyrivibrio fibrisolvens, ruminococcus flavefaciens, lachnospira multipara and ruminobacter amylophilus, broke down ala5. streptococcus bovis had an exceptionally high leucine arylamidase activity. howe ...19911748877
multiple brain abscesses caused by streptococcus bovis.a case of multiple brain abscesses caused by streptococcus bovis in a 28-year-old man is described. infected bronchiectasis is presumed to be the source of infection. streptococcus bovis infection is a rare cause of brain abscess. the aetiology and manifestations of this infection are discussed.19911753121
preliminary observations of interaction between bacteriophages and streptococcus bovis bacteria on ruminal epithelium primoculture.five streptococcus bovis strains (47/3, 59/2, 4/1, 46/2 and 44/9) isolated from calf ruminal fluid samples were examined for the adherence to cultured ruminal epithelium cells. four strains (47/3, 59/2, 4/1 and 46/2) were able to attach to the cultured epithelial cells. however, s. bovis 47/3 strain attached to the target cells in significantly greater numbers than the other strains. strain 44/9 did not adhere to cells of ruminal epithelium. the adherent bacteria were observed on the surface of ...19911771751
intracellular ph of acid-tolerant ruminal bacteria.acid-tolerant ruminal bacteria (bacteroides ruminicola b1(4), selenomonas ruminantium hd4, streptococcus bovis jb1, megasphaera elsdenii b159, and strain f) allowed their intracellular ph to decline as a function of extracellular ph and did not generate a large ph gradient across the cell membrane until the extracellular ph was low (less than 5.2). this decline in intracellular ph prevented an accumulation of volatile fatty acid anions inside the cells.19911781695
effect of growth conditions on the streptococcus bovis phosphoenolpyruvate glucose phosphotransferase system.four strains of the ruminal bacterium streptococcus bovis were surveyed for phosphoenolpyruvate (pep) and atp-dependent phosphorylation of glucose and the nonmetabolizable glucose analog 2-deoxyglucose. all four strains had high rates of glucose phosphorylation with either phosphoryl donor, but 2-deoxyglucose activity was much higher in the presence of pep. these results provide evidence for a pep-dependent glucose phosphotransferase system in these bacteria. mannose and 2-deoxyglucose inhibited ...19911808190
[streptococcus bovis meningitis and sepsis in neonates: report of two cases].streptococcus bovis is a veterinary organism rarely previously reported in the neonatal infection. two cases are presented of neonatal infection by this organism; one case manifested with meningitis and the other, with sepsis. seizure and respiratory distress were the symptoms found in these two babies, respectively. following adequate treatment, recovery was complete, and the infants enjoyed healthy lives post-discharge. s. bovis is always sensitive to penicillin, but resistant strain has been ...19911823516
fecal carriage of streptococcus bovis and colorectal adenomas.an association between fecal carriage of streptococcus bovis and colorectal carcinoma has been reported. a relationship between s. bovis and colorectal adenomas has also been suggested. in the present study, the relationship between s. bovis and adenomas was investigated. two of 18 current adenoma patients (11%) were found to have s. bovis in their stool compared with 12 of 84 controls (14%). six of 38 patients who had ever had a diagnosis of adenoma (16%) had s. bovis compared with 8 of 64 cont ...19911823534
the influence of agricultural run-off on bacterial populations in a river.the microbiological quality of the river riato (spain) was evaluated. the influence of cattle that roam free in the warm season was marked. the degree of faecal pollution in the river was higher than predicted from the river basin geographical characteristics. the counts of faecal indicators greatly increased when the cattle were allowed to roam free. counts of enterobacteria and faecal coliforms ranged from 10(3) to 10(6)/100 ml. faecal streptococci counts were smaller (less than 10/100 ml). es ...19911874685
phage resistance and altered growth habit in a strain of streptococcus bovis.bacteriophage (phi sb01) of streptococcus bovis, isolated from pooled rumen fluid of cattle, was a small siphovirus of morphotype b1. it contained double-stranded dna of length 30.9 kb, which was digested by the restriction endonucleases, ecori, hindiii, and pvuii. bacteria which survived phi sb01 infection (strain 2bar) grew in long chains (100-200 cells), ultimately forming large clumps of cells. this growth habit was in distinct contrast to that of the parent host strain which grew predominan ...19911884977
[isolation and analysis of strains of streptococcus faecium and streptococcus bovis resistant to s-(2-aminoethyl)-l-cysteine]. 19911902550
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