streptococcus bovis endocarditis with vertebral osteomyelitis. 19863750018
stoichiometry of glucose and starch splitting by strains of amylolytic bacteria from the rumen and anaerobic digester.the stoichiometry of glucose and starch splitting by the amylolytic bacteria streptococcus bovis, selenomonas ruminantium, butyrivibrio fibrisolvens, eubacterium ruminantium and clostridium sp. was followed. there were many differences in the ratios of metabolites and in growth yields, as well as in the cell composition, between the growth on glucose and starch. the bacteria employ different nutritional strategies with respect to both energy sources.19863759723
presumptive identification of "streptococcus milleri" in 5 h.rapid miniaturized tests for acetoin production, arginine hydrolysis, and sorbitol fermentation were used for presumptive identification of non-beta-hemolytic "streptococcus milleri" isolates in 5 h. all 77 "s. milleri" strains tested were voges-proskauer positive, arginine hydrolysis positive, and sorbitol fermentation negative. on the basis of these reactions, "s. milleri" was differentiated from isolates of other viridans group streptococcal species and from streptococcus bovis.19863760146
the effect of ph on the growth and metabolism of streptococcus bovis in continuous culture.streptococcus bovis h13/1 was grown anaerobically at phs between 5.0 and 6.5 in a glucose-limited chemostat at a dilution rate of 0.05/h. the growth yield and the production of acetate, ethanol and formate decreased at phs less than 6.5 whereas the production of lactate increased at the lower ph values. when a culture was subjected to sequential ph changes, growth yield and fermentation products were influenced not only by the ph existing in the culture medium but also by the metabolic activity ...19863781936
streptococcus bovis bacteremia and underlying gastrointestinal neoplasms.two patients are described in whom streptococcus bovis bacteremia was the only clue to the presence of a colonic neoplasm. a third patient had the rare association of gastric carcinoma and streptococcus bovis bacteremia that followed an operation for the carcinoma. the need for both complete gastrointestinal survey in patients with streptococcus bovis bacteremia and administration of appropriate antibiotic prophylaxis during surgical manipulation is emphasized.19863784983
phosphoenolpyruvate-dependent phosphorylation of hexoses by ruminal bacteria: evidence for the phosphotransferase transport system.six species of ruminal bacteria were surveyed for the phosphoenolpyruvate (pep)-dependent phosphorylation of glucose. selenomonas ruminantium hd4, streptococcus bovis jb1, and megasphaera elsdenii b159 all showed significant activity, but butyrivibrio fibrisolvens 49, bacteroides succinogenes s85, and bacteroides ruminicola b1(4) showed low rates of pep-dependent phosphorylation and much higher rates in the presence of atp. s. ruminantium hd4, s. bovis jb1, and m. elsdenii b159 also used pep to ...19863789722
streptococcus bovis infection of the pulmonary valve in an elderly woman with a colonic polyp. 19873805562
streptococcus bovis endocarditis and bowel neoplasm. 19853862872
streptococcus bovis endocarditis presenting with gastrointestinal bleeding. 19853878313
cross-reactions between alpha-streptococci and omniserum, a polyvalent pneumococcal serum, demonstrated by direct immunofluorescence, immunoelectroosmophoresis, and latex recent years several groups have used serological methods to demonstrate pneumococcal capsular antigens in sputum. in the present study 123 strains of alpha-hemolytic streptococci (including 97 strains from sputum or pharyngeal specimens) were tested for cross-reactions with a polyvalent antipneumococcal serum (omniserum). representatives of the following species were included: streptococcus bovis, s. equinus, s. intermedius, s. lactis, s. milleri, s. mitis, s. mutans, s. sobrinus, s. salivar ...19853889046
in vitro growth of mastitis-associated streptococci in bovine mammary secretions.cell-free, fat-free mammary secretions were tested in vitro for ability to support growth of streptococci associated with mastitis. secretions were obtained prior to drying off, during the dry period, at calving, and during lactation from four cow treatment groups. treatment groups were dry cow therapy, dry cow therapy and mammary glands subjected to induced inflammation 7 d post-drying-off, no dry cow therapy and no induced inflammation, no dry cow therapy but mammary glands subjected to induce ...19853905891
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 ...19853910299
comparison of single doses of amoxicillin or of amoxicillin-gentamicin for the prevention of endocarditis caused by streptococcus faecalis and by viridans streptococci.recent recommendations for the prophylaxis of endocarditis in humans have advocated single doses or short courses of antibiotic combinations (beta-lactam plus aminoglycoside) for susceptible patients in whom enterococcal bacteremia might develop or for patients at especially high risk of developing endocarditis (e.g., patients with prosthetic cardiac valves). we tested the prophylactic efficacy (in rats with catheter-induced aortic vegetations) of single doses of amoxicillin plus gentamicin agai ...19853925031
vertebral osteomyelitis caused by streptococcus bovis.the association of streptococcus bovis septicemia with abnominal neoplasms has been well-documented. the case of a man who presented with vertebral osteomyelitis due to s. bovis is reported; he was subsequently found to have bacteremia and colonic polyps. it is recommended that patients who present with localized as well as generalized s. bovis infections undergo yearly colonoscopy.19863946470
streptococcal endocarditis: single vs. combination antibiotic therapy and role of various species.forty-eight patients with 51 episodes of infective endocarditis caused by streptococci were studied in a comparison of the efficacy of single antibiotic therapy versus that of combination therapy. there was no statistical difference in terms of clinical course, toxicity, and mortality between the group given a single drug and that given combination therapy. however, one patient experienced two relapses, in both instances after high-dose penicillin therapy. the species and antibiotic susceptibili ...19863952425
streptococcus bovis catheter infection and the short bowel syndrome.streptococcus bovis bacteremia has been associated with several gastrointestinal disorders, most notably carcinoma of the colon. this report describes a 57-year-old woman with short bowel syndrome in whom s. bovis bacteremia and an infection of an indwelling parenteral nutrition catheter developed. a barium enema revealed diverticula and a foreshortened small intestine. this case implicates the short bowel syndrome in the pathogenesis of s. bovis bacteremia and supports empiric antibiotic covera ...19863963050
the association of streptococcus bovis fecal carriage and colon neoplasia: possible relationship with polyps and their premalignant potential.we designed a study to evaluate the fecal carrier rate of streptococcus bovis in patients with endoscopically proven colonic polyps. benign polyps (n = 63), i.e., hyperplastic, inflammatory, and juvenile, had a similar fecal carrier rate as the normal control colons. colons with polyps that are at increased risk for malignant degeneration (n = 62), i.e., tubulovillous and villous adenomas, and colons with carcinoma (n = 18), had a statistically significant increase (p less than 0.05) in the feca ...19853966453
a case of streptococcus bovis endocarditis and colonic carcinoma. 19853972551
changing pattern of infective endocarditis.there has been a significant trend toward an increase in the age of patients with endocarditis, and it seems likely that the age of these patients will continue to increase as the population ages. the proportion of patients with endocarditis who have rheumatic heart disease as an underlying lesion has decreased from about 40 percent in patients studied from 1950 to 1970 to about 25 percent in more recent series, and this trend will probably continue. prosthetic valves and degenerative heart dise ...19854014278
seasonal changes in the ruminal microflora of the high-arctic svalbard reindeer (rangifer tarandus platyrhynchus).the dominant rumen bacteria in high-arctic svalbard reindeer were characterized, their population densities were estimated, and ruminal ph was determined in summer, when food quality and availability are good, and in winter, when they are poor. in summer the total cultured viable population density was (2.09 +/- 1.26) x 10(10) cells ml-1, whereas in winter it was (0.36 +/- 0.29) x 10(10) cells ml-1, representing a decrease to 17% of the summer population density. on culture, butyrivibrio fibriso ...19854026289
growth inhibition of streptococcus mutans by cellular extracts of human intestinal lactic acid bacteria.the in vitro growth of streptococcus mutans was completely inhibited by water-soluble extracts from cells of various intestinal lactic acid bacteria identified as streptococcus faecium, streptococcus equinus, lactobacillus fermentum, and lactobacillus salivarius. the growth inhibition was dependent on the concentrations of the extracts. in contrast, the extracts did not inhibit the growth of the major indigenous intestinal lactic acid bacteria isolated from humans. these lactic acid bacteria wer ...19854030098
the rumen microbiology of seaweed digestion in orkney sheep.the microbial populations of the rumens of seaweed-fed and pasture-fed orkney sheep were examined. the populations in the pasture-fed sheep were similar to those of other domestic ruminants fed on land plants, but those of the seaweed-fed animals showed major differences in the dominant species. total ciliate populations were quantitatively similar, but in the seaweed-fed animals dasytricha ruminantium was one of the most dominant species. no phycomycete fungi or cellulolytic bacteria were found ...19854030526
streptococcus bovis bacteraemia requires rigorous exclusion of colonic neoplasia and endocarditis.twelve patients presented to the hospitals of the auckland hospital board with bacteraemia caused by streptococcus bovis in the years 1979-84. ten had endocarditis, affecting homograft valves in two cases and the tricuspid valve in one case. of nine patients who underwent investigation of the large bowel, only one did not have a colorectal tumour. three had colonic adenocarcinoma and three had colorectal villous adenoma. two, including a patient with acute hepatic failure from alcoholic cirrhosi ...19854048386
antibiotic activity of an isocyanide metabolite of trichoderma hamatum against rumen bacteria.a metabolite of trichoderma hamatum, 3-(3-isocyanocyclopent-2-enylidene)propionic acid, was tested for its effects on growth of and carbohydrate metabolism in 11 strains of functionally important rumen bacteria. to standardize the biological activity of this unstable metabolite, a rapid, aerobic disc diffusion assay was developed using escherichia coli atcc 11775. in an anaerobic broth dilution assay using a medium lacking rumen fluid and containing a soluble carbohydrate, the minimum inhibitory ...19854084861
brain-abscess caused by streptococcus bovis. 19854092706
glycans from streptococcal cell walls: structural features of a diheteroglycan isolated from the cell wall of streptococcus bovis. 19724112919
glycans from streptococcal cell walls: an antigenic triheteroglycan of 6-deoxy-l-talose, l-rhamnose and d-galactose from streptococcus bovis. 19724114574
[on the influence of different nutrient media on the activity of several enzymes in streptococcus bovis 2281]. 19664230687
enzymatic studies of pure cultures of rumen microorganisms.joyner, a. e., jr. (university of california, davis), and r. l. baldwin. enzymatic studies of pure cultures of rumen microorganisms. j. bacteriol. 92:1321-1330. 1966.-the activities of enzymes representing the major pathways of carbohydrate metabolism and anaerobic electron transport in cell-free extracts of whole rumen contents have been reported. the effects of diet upon the activities of several enzymes suggested that enzymatic measurements might prove useful for the study of rumen metabolism ...19664380801
streptococcus bovis endocarditis.a case is described of bacterial endocarditis caused by lancefield group d streptococcus bovis. because of its sensitivity to the less toxic antibiotics such as penicillin, the importance of laboratory differentiation from the more resistant enterococci is emphasized. treatment in this case was complicated by penicillin allergy and cardiac failure. the condition finally responded to clindamycin therapy and aortic valve replacement.19744415908
nonenterococcal group-d streptococcal endocarditis caused by streptococcus bovis. 19744422602
evaluation of selective media for enumeration of group d streptococci in bovine feces.eight commercially available selective media were evaluated by the membrane filter technique. enterococcosel broth (bbl) consistently gave the best recovery of group d streptococci, particularly of streptococcus bovis.19744451370
studies on mannitol-fermenting strains of streptococcus bovis. 19734517040
the lysozyme sensitivity of streptococcus equinus. 19734589869
comparative survival of indicator bacteria and enteric pathogens in well water.the comparative survival of various fecal indicator bacteria and enteric pathogens was studied in a stable well water supply by using membrane chambers. there was more variation in the 29 coliform cultures and they died more rapidly, as a group, than the 20 enterococcus cultures that were examined. the comparative survival of the organisms tested follows: aeromonas sp. > the shigellae (shigella flexneri, s. sonnei, and s. dysenteriae) > fecal streptococci > coliforms = some salmonellae (salmonel ...19744598219
incorporation of adenine and uracil into the nucleic acids of streptococcus bovis. 19734736195
group d streptococcal bacteremia, with emphasis on the incidence and presentation of infectious due to streptococcus bovis. 19734753940
streptococcus bovis endocarditis. 19744812081
[lysogeny among cultures of streptococcus bovis isolated from the rumina of cattle and sheep]. 19744828756
antibiotic susceptibility of streptococcus bovis and other group d streptococci causing endocarditis.seventy-four strains of streptococcus bovis and 35 strains of enterococci (streptococcus faecalis and its varieties, streptococcus faecium and streptococcus durans), most of which were isolated from patients with endocarditis, were tested for their susceptibility to penicillin, ampicillin, erythromycin, cephalothin, vancomycin, methicillin, tetracycline, chloramphenicol, kanamycin, streptomycin, and gentamicin. minimal inhibitory concentrations (mic) and minimal bactericidal concentrations (mbc) ...19744840433
endocarditis due to group d streptococci. comparison of disease caused by streptococcus bovis with that produced by the enterococci. 19744843895
comparison of selective media for isolation of presumptive group d streptococci from human selective enterococcus (pse) agar, a medium containing bile, sodium azide, and esculin, was evaluated for its sensitivity and selectivity for detection and enumeration of presumptive group d streptococci in human feces. sf broth and sf broth plus agar (1.5%), representing selective media in common use, were studied simultaneously. presumptive group d streptococci were recovered on pse agar from the feces of all 25 subjects. no growth was observed in 8% of specimens in sf broth. no gram-ne ...19714944799
immunochemical studies on the cross-reactivity between streptococcus bovis, strain s19, and group a streptococcal carbohydrates. 19694976669
extracellular transglucosylase and alpha-amylase of streptococcus equinus.culture filtrates of streptococcus equinus 1091 contained alpha-amylase and transglucosylase. the effects of calcium carbonate, age of inoculum, concentration of maltose, and duration of the fermentation on alpha-amylase and transglucosylase production were determined. the extracellular alpha-amylase was purified 48-fold and was free of transglucosylase activity. the alpha-amylase (amylose substrate) required cl(-) for maximum activity; ethylenediaminetetraacetic acid (edta) partially inhibited ...19714995651
the presence of dextran-forming bacteria, resembling streptococcus bovis and streptococcus anguis, in human dental plaque. 19675233940
sugar fermentation characteristics, antibiotic sensitivity and fatty acid composition of streptococcus bovis. 19695394202
immunochemistry of capsular glucans isolated from streptococcus bovis. 19715543700
lysis of viable rumen bacteria in bovine rumen fluid.streptococcus bovis and butyrivibrio sp. were labeled with thymidine-methyl-(3)h, washed, and resuspended in rumen fluid or rumen fluid fractions obtained from holstein and jersey cows fed alfalfa hay once daily. factors affecting the lytic activity found in untreated rumen fluid were examined. day to day variation and differences before and after feeding were observed for the same cow. there were also differences between cows on the same day. for a given rumen fluid, the rate of release of labe ...19685659364
antibiotic susceptibility of anaerobic ruminal bacteria.this study demonstrated that 15 species of ruminal bacteria with no previous history of contact with antibiotics are susceptible to bacitracin, chloramphenicol, chlortetracycline, erythromycin, novobiocin, oleandomycin, oxytetracycline, penicillin, tetracycline, tylosin, and vancomycin. a number of the species were not inhibited by kanamycin, neomycin, polymyxin, and streptomycin. the data suggest that antibiotic-resistant cells occur within susceptible cultures of these species. streptococcus b ...19685689514
protein--carbohydrate interaction. xvi. the interaction of concanavalin a with dextrans from l. mesenteroides b-512-f, l. mesenteroides 9birmingham), streptococcus bovis, and a synthetic alpha-(1--6)-d-glucan. 19685698021
immunochemical analysis of streptococcus bovis, strain s 19, cell walls. 19695792673
chemical studies on the structure of mucopeptide isolated from streptococcus bovis.mucopeptides isolated from streptococcus bovis cell walls were found to be composed of alanine, glutamic acid, lysine, and threonine in a mole ratio of 3:1:1:1. a dipeptide, n(epsilon)-lysylthreonine, was isolated from s. bovis mucopeptide by ion-exchange chromatography. this finding suggests that threonine is associated with the bridge which cross-links adjacent tetrapeptides by connecting the epsilon-amino group of lysine of one tetrapeptide to the carboxyl group of d-alanine of another to for ...19695802603
utilization of co2 and acetate in amino acid synthesis by streptococcus bovis. 19655836014
[contribution to the antigenic study of the lancefield group d streptococci. group antigens and antigens of the streptococcus equinus type]. 19665924739
arginine biosynthesis by streptococcus bovis.the pathway of arginine biosynthesis in streptococcus bovis was studied by radioactive tracer techniques. cells were grown anaerobically with (14)co(2) in a synthetic medium containing nh(4) (+) as the sole nitrogen source except for the trace present in nitrogen-containing vitamins. the protein fraction isolated from the labeled cells was acid-hydrolyzed, and (14)c-arginine was isolated from the protein hydrolysate by ion-exchange chromatography. the carboxyl carbon of the isolated arginine was ...19676051338
streptococci with dual antigen specificity for lancefield groups d and g.streptococci have been isolated which may be identified in serological tests as belonging to lancefield group g, but in fact belong to group d. twenty-two cultures with this property were obtained from four countries; they included streptococcus bovis and streptococcus durans as well as streptococcus faecalis. selected strains were studied in serological tests and cross-absorption procedures, in which it was found that the group g reaction given by these isolates is due to an epitope with at lea ...19846084598
behaviour of campylobacter sputorum subspecies mucosalis in gnotobiotic pigs.gnotobiotic pigs were dosed orally with campylobacter sputorum subspecies mucosalis, either alone, or combined with rotavirus or non-pathogenic escherichia coli and streptococcus bovis to study the behaviour of c s mucosalis in defined conditions, to assess intracellular parasitism of enterocytes by c s mucosalis, and if possible to establish an experimental model of porcine intestinal adenomatosis. c s mucosalis colonised the gut of gnotobiotic pigs, persisting for up to 47 days after infection ...19846087431
streptococcus bovis endocarditis and colorectal disease. 19806101869
mutagenic activation of an antischistosomal drug by enteric streptococcus sps in vitro and in vivo.previous studies have shown that a new antischistosomal drug, 4-isothiocyano-4'-nitro diphenylamine (cgp 4540, amoscanate), is not mutagenic in vitro, but the urines of animals treated with this drug have mutagenic activity. mutagenicity can be eliminated by coadministration of some antibacterial agents and is not demonstrable in germ-free animals. the present study describes attempts to isolate and identify intestinal microorganisms responsible for the mutagenic activation of amoscanate. strept ...19806119805
detection and partial characterization of antibacterial factor(s) in alveolar lining material of rats.intracellular killing of staphylococcus aureus by alveolar macrophages is known to be enhanced by exposure to alveolar lining material. because this material may have a role in pulmonary host defenses, we have studied its effect on pneumococci and other nonstaphylococcal organisms. alveolar lining material from rats caused rapid killing and lysis of pneumococci. the antipneumococcal activity was localized to the surfactant-containing fraction of the fluid and was not affected by trypsin. phospho ...19836129262
compositions and characteristics of strains of streptococcus bovis.streptococcus bovis strains jb1, 26, 581axy2, 21096c, and 45s1 grew on glucose, maltose, starch, sucrose, cellobiose, and lactose. none of these strains grew on xylose or ribose, but arabinose was a suitable energy source for strains 2109c and k27ff4. all strains grew at 45 degrees c, but incubation at 50 degrees c prevented growth. growth was permitted in 2% sodium chloride, but 6.5% sodium chloride was inhibitory. doubling times ranged from 24 to 27 min, and final ph on glucose was approximate ...19846205028
comparative in vitro activity of norfloxacin against urinary tract pathogens.the in vitro activity of norfloxacin (mk366) against 477 aerobic gram-negative and gram-positive clinical isolates was compared to that of nalidixic acid, nitrofurantoin, ampicillin, cephalexin, trimethoprim, sulfamethoxazole, and the combination trimethoprim-sulfamethoxazole. norfloxacin was more active than the other agents against all gram-negative organisms tested. minimal inhibitory concentrations (mics) of pseudomonas aeruginosa were less than or equal to 0.125-32 mg/l with 90% inhibited ( ...19836224679
streptococcus bovis endocarditis and colonic carcinoma: a neglected association. 19836407678
rapid identification of group d streptococci with the api 20s system.the api 20s system (analytab products) was evaluated as a means of identifying 209 isolates of lancefield group d streptococci to the species level. results were compared with those from a conventional tube biochemical identification system and from serological grouping. use of the latest 20s computerized data base allowed species identification of 97% (203 of 209) of test isolates after a 4-h incubation period and 99% (208 of 209) of test isolates if supplemental overnight biochemical tests wer ...19836409923
studies on the mechanism of intrinsic resistance to beta-lactam antibiotics in group d streptococci.six penicillin-binding proteins (pbps) were detected in clinical isolates of each one of three group d streptococci: streptococcus bovis, s. faecalis and s. faecium. when examined in whole organisms, the pbps of s. faecium, the most penicillin-resistant species of group d streptococci, generally had lower affinities for the antibiotic than those of s. faecalis (intermediate penicillin resistance), which in turn were of lower affinity than those of s. bovis (penicillin-sensitive). on the other ha ...19836409985
measurement of microbial alpha-amylases with p-nitrophenyl glycosides as the substrate complex.the detection of alpha-amylase is commonly used in clinical microbiology laboratories to aid in differentiating streptococcus bovis from other streptococci. it is also useful in identifying eikenella corrodens and the gravis subspecies of corynebacterium diphtheriae and in separating species of the genera bacteroides, clostridium, actinomyces, and bacillus. currently, the most frequently used procedure utilizes starch as the substrate and iodine as the indicator. starch is incorporated into a ag ...19846418764
the uptake and utilization of entodinium caudatum, bacteria, free amino acids and glucose by the rumen ciliate entodinium bursa.washed suspensions of entodinium bursa were incubated anaerobically with entodinium caudatum, ten species of bacteria and a yeast. the rate of uptake and digestion of these micro-organisms was investigated. protozoa grown in vivo did not engulf proteus mirabilis or klebsiella aerogenes but rapidly took up bacillus megaterium. selenomonas ruminantium, torulopsis glabrata and streptococcus bovis, although only the last was digested with release of soluble material into the medium. protozoa grown i ...19846427172
in vitro susceptibility of streptococcus bovis to six antibiotics.a recent report of two isolates of streptococcus bovis resistant to killing by low levels of penicillin g prompted this study of the in vitro susceptibility of 100 clinical isolates of s bovis to six antibiotics. using a microdilution method, we found the minimum bactericidal concentrations for 99% of the isolates to be as follows: penicillin g, 0.5 microgram/ml; methicillin, 16 micrograms/ml; ampicillin, 0.5 microgram/ml; cephalothin, 2 micrograms/ml; clindamycin, 2 micrograms/ml; and vancomyci ...19846467280
streptococcus bovis endocarditis and its association with colonic carcinoma.two cases of colonic carcinoma detected in patients with streptococcus bovis endocarditis are presented. neither patient had any complaints referable to the gastrointestinal tract; gastrointestinal evaluations were undertaken and colonic lesions were identified purely on the basis of the patients' underlying endocarditis. both patients underwent successful surgery after completion of appropriate antibiotic treatment for s. bovis endocarditis. results of a literature search for similar cases are ...19846468203
identification of streptococcus bovis and streptococcus salivarius in clinical laboratories.streptococci identified as streptococcus bovis, s. bovis variant, and streptococcus salivarius were examined with respect to physiological and serological characteristics and cellular fatty acid content. similarities in physiological reactions and problems encountered in serological analysis were noted, suggesting that an expanded battery of physiological tests is needed to definitively identify these streptococci. cellular fatty acid analysis provided an accurate method for distinguishing s. sa ...19846490816
streptococcus bovis subacute bacterial endocarditis as a presenting symptom of occult double carcinoma of the colon.a case of double carcinoma of the colon is presented in association with subacute bacterial endocarditis due to streptococcus bovis. the presence of streptococcus bovis septicemia is a strong pointer in favour of associated colon carcinoma even in the absence of gastrointestinal symptomatology.19846492814
changes in metabolism of the rumen bacterium streptococcus bovis h13/1 resulting from alteration in dilution rate and glucose supply per unit time.streptococcus bovis h13/1 was grown in a glucose-limited chemostat. a concomitant increase in dilution rate and glucose supply per unit time caused both an increase in lactate production per mole of glucose fermented and a linear increase in growth yield over the dilution rate range 0.052 to 0.141/h. when the dilution rate was increased with no change in glucose supply per unit time there was a reduction in lactate production and an increase in that of acetate and ethanol coinciding with a non-l ...19846501121
the intestinal microflora of infants: composition of fecal flora in breast-fed and bottle-fed infants.the fecal flora of 35 breast-fed and 35 bottle-fed babies was determined. bifidobacteria were the predominant fecal bacteria in both groups. conversely, the counts of most of the other bacteria, such as bacteroides, eubacteria, peptococci, veillonella, clostridia, enterobacteria, streptococci, and bacilli in the bottle-fed group were significantly higher than those in the breast-fed group. the frequencies of occurrence of lecithinase positive clostridia, clostridia-others, pseudomonas and bacill ...19846513816
asymptomatic colonic carcinoma revealed by investigation of streptococcus bovis bacteremia.a case of bacteremia in a patient with a prosthetic aortic valve is reported. the identification of streptococcus bovis as the causative organism and its known association with gastrointestinal disease led to investigations which revealed carcinoma of the sigmoid colon in an asymptomatic patient. the association of colonic lesions with s. bovis bacteremia is briefly reviewed.19836577837
relation of rumen atp concentration to bacterial and protozoal numbers.cultures of streptococcus bovis and mixed populations of rumen bacteria were used to investigate the concentration of atp and rumen bacterial numbers at various stages of growth. atp, extracted with tris buffer, was analyzed using the firefly luciferin-luciferase bioluminescent reaction. atp concentrations of s. bovis and mixed cultures of rumen bacteria significantly correlated with live cell counts during the log phase of growth but not during the stationary phase. the average cellular atp con ...19836639012
splenic abscess associated with streptococcus bovis septicemia and neoplastic lesions of the colon.streptococcus bovis bacteremia is known to be associated with gastrointestinal disease, especially colon lesions. two patients are presented with a previously unreported syndrome: s. bovis bacteremia, endocarditis, colon neoplasms, and splenic abscess. in one case, the colonic lesion was occult and required colonoscopy for identification (normal barium enema). s. bovis bacteremia is an important marker for occult gastrointestinal neoplasia.19836641468
rapid identification of enterococci.a 4-h method was devised to differentiate the non-beta-hemolytic streptococci into three categories: enterococci, group d nonenterococci, and viridans streptococci. all of the streptococcus faecalis, 90% of the streptococcus faecium (enterococci), and 96% of the streptococcus bovis biotype i (group d nonenterococci) cultures were correctly identified by the 4-h method. the less commonly isolated group d cultures had lower rates of correct identification by this method. none of the viridans strep ...19836643675
streptococcus bovis endocarditis and colonic polyp. 19836647193
streptococcus bovis septicemia and meningitis associated with chronic radiation enterocolitis.we describe the first patient with simultaneous s bovis septicemia and meningitis associated with chronic radiation enterocolitis. this case underlines the value of a thorough gastrointestinal evaluation of all patients with s bovis infection, and the need for a neurologic investigation even with minor neurologic manifestations.19836648628
streptococcus bovis bacteremia and acquired immunodeficiency syndrome. 19836651037
endocarditis due to a penicillin-tolerant streptococcus bovis: microbiological findings and echocardiographic follow-up.we are presenting a case of endocarditis due to a penicillin-tolerant streptococcus bovis in a 65-year-old patient. the minimal bactericidal concentration of penicillin (40 mg/l) was more than 100-fold the minimal inhibitory concentration (0.08 mg/l). the mbc of penicillin was 0.31 mg/l in the presence of 1.25 mg/l gentamicin. cross-sectional echocardiography revealed endocarditis of the anterior leaflet of the tricuspid valve and a vegetation on the aortic valve which appeared to be pedunculate ...19836668068
a note on a modified membrane-bovis agar for the enumeration of streptococcus bovis by membrane filtration.a modified membrane-bovis agar, containing a reduced quantity of sodium azide, for the isolation and enumeration of streptococcus bovis is described and evaluated. higher counts, with larger colonies, were obtained from water and sewage samples with this medium than with the original formulation.19846706885
streptococcus bovis endocarditis with carcinoma of the colon. 19846719179
isolation and identification of adherent epimural bacteria during succession in young lambs.successive changes in aerobic and anaerobic bacterial counts and changes in the generic composition of the epimural community in lambs from 1 to 10 weeks were determined. bacterial culture counts revealed a predominantly anaerobic community, with the mean anaerobic count being 1.4 x 10(7) cfu/cm2 of tissue surface. the aerobic count was highest at 1 week of age and declined significantly thereafter to a mean of 1.8 x 10(4) cfu/cm2, thus representing only 0.13% of the mean anaerobic count after w ...19846721489
a note on the pectinolytic enzyme of streptococcus bovis.a pectinolytic strain of streptococcus bovis isolated from the bovine rumen produced an endopolygalacturonate lyase (ec the principal decomposition products of pectin were unsaturated methyl tetra- and tri-galacturonates.19846746470
bacterial food-poisoning versus coliforms-faecal streptococci and gamma radiation survival/dose.all the species tested were sensitive to gamma radiation treatment, even at a dose as low as 0.001 mrad. the spore-former bacillus cereus (pcj 213) proved to be more resistant than the rest of the tested species, while the gram-negative organisms were more susceptible to irradiation treatment. the tolerance among those organisms is depicted by the descending order: proteus vulgaris, irregular vi, escherichia coli i, e. coli iii, and salmonella typhi-murium. yet all the tested faecal streptococci ...19816784377
gentamicin-thallous-carbonate medium for isolation of fecal streptococci from foods.gentamicin-thallous-carbonate (gtc) agar was formulated by donnelly and hartman (appl. environ. microbiol. 35:576-581, 1978) to select for fecal streptococci in sewage and water samples. the present study was conducted to determine the usefulness of gtc agar for the enumeration of fecal streptococci in foods. comparisons were made with kf streptococcal (kf), pfizer selective enterococcus (pse), and thallous acetate (ta) agars. samples of ground beef pork sausage, frozen broccoli, frozen fish, an ...19816784675
streptococcus bovis meningitis and carcinoma of the colon.a 90-year-old woman who presented with streptococcus bovis meningitis was found at autopsy to have a colonic carcinoma. although the association between colonic carcinoma and s. bovis endocarditis or bacteremia is well-documented in the literature, s. bovis meningitis is uncommon. a thorough investigation of the gastrointestinal tract should be undertaken in patients with s. bovis infections even in the absence of gastrointestinal signs or symptoms.19816785508
mannitol agar for microbiologic diagnosis of bovine mastitis.a medium containing mannitol (mannitol agar) was developed and evaluated as a tool for the microbiologic diagnosis of bovine mastitis. mannitol agar supported growth of all important bacterial mastitis pathogens (staphylococci, streptococci, coliforms, and pseudomonads) except corynebacterium pyogenes. color change around colonies in the agar permitted the differentiation of pathogenic from nonpathogenic staphylococci. most staphylococcus aureus strains and some staphylococcus epidermidis strain ...19816792172
streptococcus bovis meningitis following a dental procedure. 19826804645
the antibacterial action of vancomycin.vancomycin inhibits the second stage of cell wall synthesis in susceptible bacteria. furthermore, there is evidence that vancomycin also alters the permeability of the cell membrane and selectively inhibits ribonucleic acid synthesis. stable l-phase variants are susceptible to vancomycin, but induction of bacterial l-phase variants with vancomycin is very difficult. vancomycin is active against a large number of species of gram-positive cocci and bacilli, such as staphylococcus aureus (including ...19816805065
[isolation of l forms of streptococcus bovis from blood cultures (author's transl)]. 19826809854
the association of recent streptococcus bovis bacteremia with colonic neoplasia. 19826815579
anaerobic radiometric detection of facultative gram-positive cocci in blood.radiometric detection of facultative gram-positive cocci, particularly streptococci, has been reported to be suboptimal. a recently marketed anaerobic bactec bottle (7c) with purportedly improved capability to detect facultative gram-positive cocci in blood was compared with the previously available bottle in a study of simulated bacteremia. the bactec system detected all beta-hemolytic streptococci and enterococci tested. detection of alpha-hemolytic streptococci was improved in general. howeve ...19826816586
carcinoma of the colon 2 years after endocarditis due to streptococcus bovis.a patient with streptococcus bovis endocarditis, on complete gastrointestinal evaluation had only an adenomatous polyp of the sigmoid colon. twenty-eight months later she was found to have invasive cecal carcinoma. periodic evaluation of the gastrointestinal tract is therefore recommended for all patients with a history of s. bovis septicemia.19836829536
fluorogenic selective and differential medium for isolation of fecal streptococci.of 44 fluorogenic substrates tested for their ability to differentiate species of fecal streptococci, four yielded species-differentiating reactions. the remaining substrates either yielded uniformly positive, negative, or variable strain-dependent reactions. one substrate, 4-methylumbelliferone-alpha-d-galactoside, was hydrolyzed by streptococcus bovis and s. faecium and its biotypes. 4-methylumbelliferone-alpha-d-galactoside and a colorimetric starch substrate were incorporated into the fecal ...19836830220
purification and properties of pyruvate kinase from streptococcus sanguis and activator specificity of pyruvate kinase from oral was found that pyruvate kinases with two different regulatory characteristics were distributed among oral streptococci. the pyruvate kinases of streptococcus mutans, streptococcus salivarius, and streptococcus bovis were activated by glucose 6-phosphate, whereas the enzymes of both streptococcus sanguis and streptococcus mitis were activated by fructose 1,6-bisphosphate. pyruvate kinase (ec from s. sanguis nctc 10904 was purified, giving a single band on sodium dodecyl sulfate-polya ...19836840832
association of streptococcus bovis bacteremia with bowel disease.we reviewed the medical records of 19 patients who had streptococcus bovis bacteremia. eight patients had diverticulosis, four had benign adenomatous colonic polyps, and three had adenocarcinomas of the gastrointestinal tract. laboratory workers and clinicians should be aware of the association of s. bovis bacteremia and gastrointestinal disease.19836853693
isolation of proteolytic rumen bacteria by use of selective medium containing leaf fraction 1 protein (ribulosebisphosphate carboxylase).the principle proteolytic bacteria isolated from bovine rumen contents by virtue of the ability to obtain nitrogen from the proteolysis of leaf fraction 1 protein (ribulosebisphosphate carboxylase, ec were identified as streptococcus bovis and butyrivibrio spp. substitution of fresh fodder, rich in soluble protein, for a hay-concentrates diet resulted in enhanced ruminal proteolytic activity and a significant increase in the number of bacteria able to use fraction 1 protein as the sole ...19836881961
humoral reactions in human endocarditis due to streptococcus bovis: evidence for a common s bovis antigen.humoral reactions to native culture filtrates of streptococcus bovis were studied in patients with endocarditis by means of two-dimensional crossed immunoelectrophoresis. serum from patients with s bovis endocarditis produced eight different precipitin arcs. lex antigen cross-reacted with sera from patients with viridans streptococcal endocarditis, and ta antigen cross-reacted with ribitol teichoic acid-positive sera from patients with staphylococcus aureus bacteremia. one antigen, common (c), w ...19836886490
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