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production of extracellular proteolytic enzymes from two strains of oral streptococci. 19704988925
vitamin b6-amino acid-peptide interrelationships in streptococcus faecium 0 51. 19704988977
[the role of enterococci as possible agents of food poisoning]. 19704989574
[bacteria of the termite intestines]. 19704992751
[the effect of ascorbic acid on the results of the estimation of folic acid in food products]. 19704987181
bacteriuria and arterial hypertension in old age. 19704987210
early changes in the ultrastructure of streptococcus faecalis after amino acid starvation.thin sections of streptococcus faecalis (atcc 9790) starved of one essential amino acid (threonine or valine) initially show rapid increases in (i) cell wall thickness, (ii) the apparent size of the central nucleoid region, and (iii) mesosomal membranes. the most rapid increases in all three variables occurred during the first 1 to 2 hr of starvation. after this initial period, the rates progressively decreased over the 20-hr observation period. during threonine starvation, the mesosomal membran ...19704987306
microbiological determination of the amino acids of xanthine oxidase. 19704987322
bacterial flora of the bovine eye with special reference to the moraxella and neisseria. 19704987567
[acute aortic insufficiency during endocarditis due to "streptococcus foecalis" in 2 patients treated by periodic hemodialysis]. 19704987604
exchange between parenteral and tissue folate in man. 19704987890
urinary excretion of folic acid activity in man. 19704987973
in-vitro comparison of erythromycin, lincomycin, and clindamycin.the in-vitro antibacterial activities of erythromycin, lincomycin, and clindamycin, a new derivative of lincomycin, were compared. clindamycin was always more active than lincomycin, and was either as active as erythromycin or more so against betahaemolytic streptococci, streptococcus viridans, str. pneumoniae, and erythromycin-sensitive staphylococcus aureus. it was also fully active against most erythromycin-resistant strains of staph. aureus. on the other hand, it was somewhat less active tha ...19704988120
relationship between the location of autolysin, cell wall synthesis, and the development of resistance to cellular autolysis in streptococcus faecalis after inhibition of protein synthesis.ten minutes after inhibition of protein synthesis with chloramphenicol (cap) the ability of cells of streptococcus faecalis (atcc 9790) to autolyze decreased to less than 20% of the rate for exponential-phase cells. after threonine exhaustion, the time for a 50% drop in the rate of cellular autolysis was about 20 min. these rapid increases in resistance to cellular autolysis could not be accounted for by: (i) the relatively slow and small overall decrease in susceptibility of isolated cell walls ...19704988243
site of initiation of cellular autolysis in streptococcus faecalis as seen by electron microscopy.low concentrations of glutaraldehyde (0.1% or higher) blocked cellular and wall autolysis. the site of autolytic activity was studied by allowing cell autolysis to proceed for very short periods (0 to 15 min) before addition of glutaraldehyde. electron microscopy of ultrathin sections showed that the primary site of autolytic activity was the leading edge of the nascent cross wall. the base of the cross wall seemed more resistant than the tip. evidence supporting the involvement of autolysin act ...19704988247
effect of iron on the bactericidal proteins from rabbit polymorphonuclear leukocytes. 19704988270
[utilization of the phenomenon of spontaneous bacteriolysis for the knowledge of sanitary state of fresh and marine waters]. 19704988331
antibiotic synergism of enterococci. relation to inhibitory concentrations. 19704988356
[leukoencephalitis as a complication of acute purulent meningitis]. 19704988534
[dynamics of typhoid bacteria discharge in chronic carriers according to the season of the year and its significance in the epidemiology of the disease]. 19704988550
bilateral tibiotarsal fracture in a wallaby. 19704989057
osmotic fragility and mouse virulence in enterococcal l-forms. 19704989098
the fate of penicillin-damaged enterococci in the mouse kidney. 19704989099
carbon dioxide fixation by cells of streptococcus faecalis var. liquefaciens.fixation of nah(14)co(3) by a heavy cell suspension of streptococcus faecalis var. liquefaciens was studied. several nutrients, pyridoxal, riboflavine, adenine, uracil, and o(2) stimulated (14)co(2) incorporation into cells only under conditions that were adequate for synthesis of cell macromolecules. biotin increased co(2) incorporation in the absence of extensive synthesis of macromolecules, whereas o(2) inhibited incorporation under these conditions. when (14)co(2) fixation was occurring duri ...19704990760
induction of enterococcal l-forms by the action of lysozyme.suspensions of enterococci were treated with lysozyme in the presence of osmotic stabilizers. the resulting osmotically fragile bodies prepared from streptococcus faecium strain f24 and s. faecalis strain e1 gave rise to l-forms under optimal osmotic and nutritional conditions for treatment and subsequent growth. the most critical component of the growth medium, to obtain maximum yields, was the nature and concentration of the added salt. the two most effective salts were sodium chloride and amm ...19704990848
experimental pyelonephritis. 19704990991
effect of excision and benzimidazole treatment on folate content of wheat leaves and wheat leaf chloroplasts. 19704991049
fecal streptococci on barley and malt kernels and instant malted milk powder.among 500 barley kernels, tested singly, 1.8% (9 kernels) were positive for fecal streptococci. among 800 malt kernels, tested singly by the same procedure, 68% (540 kernels) were positive for fecal streptococci. in unsulfured and sulfured malts, 67 and 68% of the kernels, respectively, were positive for these bacteria. fecal streptococci were also isolated by an enrichment procedure from two brands of instant malted milk powder sold in supermarkets. seventy randomly picked isolates from malts w ...19704991404
new method for detecting bacteriocin production.bacteriocin production can be easily detected by using both sides of the agar contained in a standard petri dish.19704991407
[studies on bactericidal activity in the therapy of enterococcal endocarditis]. 19704991419
[inhibition of the r-factor transfer in vivo]. 19704991604
the influence of the indigenous bacterial flora upon the interferon response of mice. 19704991744
[vaccine of caries]. 19704991830
new water disinfectant: an insoluble quaternary ammonium resin-triiodide combination that releases bactericide on demand.strongly basic anion-exchange resins form stable, water-insoluble combinations with triiodide ions. the combinations have remarkable antibacterial properties: 3.0 x 10(5)escherichia coli cells per ml were killed when passed through a 3.8-g column of commercially available resin treated with triiodide (volume 4 ml after treatment). in an attempt to deplete the resin-triiodide complex, 1.14 x 10(9)e. coli cells in 15 liters were passed through the column with no significant loss of effectiveness. ...19704991917
effect of storage of mueller-hinton agar plates on zone sizes for antimicrobial testing.the length of time mueller-hinton agar plates can be stored at 4 c without affecting the size of zones of inhibition in susceptibility testing by the bauer-kirby method was studied. it was found that these plates can be stored for 3 weeks at 4 c without an appreciable affect on zone sizes. storage of plates in sealed plastic bags did not alter the results significantly. the findings indicate that commercially prepared mueller-hinton agar plates, which may be several days old when received at the ...19704991956
bacteriophage active against the lactic acid beverage-producing bacterium lactobacillus casei.a virulent bacteriophage which causes a decrease in acid production during fermentation of a lactic acid beverage named yakult with lactobacillus casei was isolated from the abnormal fermentation tank and named pl-1. l. casei s strain was the exclusive host cell among 18 lactic acid bacteria tested. the plaque was round with an average diameter of about 0.5 mm. it exhibited serological cross-reaction with previously isolated j1 phage. under an electron microscope, the phage had a spermatozoon sh ...19704991958
influence exerted on the growth of heat-injured faecal streptococci by the addition of blood or milk to sodium azide media. 19704992023
[e. coli i. and its significance in nutritional hygienic studies]. 19704992212
the effect of bacterial growth on the hydrogen ion concentration in urine. 19704992246
the identity of streptococcus faecalis atcc 9790. 19704992572
anti-bacterial activity of ungulic acid. 19704992627
potentiating effect of organomercurials on bisphenols. 19704983485
bacteriologic studies on wasting disease induced by neonatal thymectomy. 19704983533
extrusion of sodium and hydrogen ions as the primary process in potassium ion accumulation by streptococcus faecalis.glycolyzing cells of streptococcus faecalis accumulate k(+) with concurrent extrusion of equivalent amounts of h(+) and na(+). an attempt was made to clarify the retionship between the movements of na(+) and k(+). sodium was displaced from cells glycolyzing in the presence of ammonia, diethylamine, tris(hydroxymethyl)aminomethane, and other nitrogenous cations; by contrast, k(+) was completely retained. accumulation of k(+) by heterologous exchange for na(+) was not inhibited by antibiotics whic ...19704983644
model for cell wall growth of streptococcus faecalis.in exponentially growing and dividing cells of streptococcus faecalis, it is proposed that the leading edge of the annularly closing cross wall is the point of extension for both cross wall and peripheral wall. peripheral wall extension is thought to be produced by the separation or splitting of the cross wall at its junction with peripheral wall. this results in the pushing of the equatorial wall bands, found on s. faecalis walls, to subsequatorial positions. these bands therefore mark the sepa ...19704984078
effect of bacteriocin from streptococcus faecalis on microbial l-forms. 19704984336
intestinal flora of folate-deficient mice. 19704984450
pronase and "immunogenic rna". inactivation of mouse anti-phage antibody with pronase. 19704984558
nalidixic acid cetrimide agar. a new selective plating medium for the selective isolation of pseudomonas aeruginosa. 19704984597
[antibacterial activity of streptococcus faecalis]. 19704984672
entropy of microbial growth. 19704984868
the proteins in membrane and cytoplasmic ribosomes of streptococcus fecalis. an extra protein in the 50-s subparticles of cytoplasmic ribosomes. 19704985343
dissociation of an autolytic enzyme-cell wall complex by treatment with unusually high concentrations of salt. 19704985440
inhibition of methotrexate resistant mutant of streptococcus faecalis by analogs of purine and pyrimidine. 19704985487
[photochemical inactivation of folic acid in the presence of riboflavin and its inhibition by ascorbic acid]. 19704985645
preparation and activity of the 4'-thio derivatives of some 6-substituted purine nucleosides. 19704985956
rat liver glutamate formiminotransferase activity in b12 deprivation and germfree conditions. 19704985957
studies of (3h)folic acid uptake by lactobacillus casei. 19704985961
[experiences with doxycycline in microbiological routine diagnosis]. 19704986039
[treatment of urinary tract infections with cephalexin an oral antibiotic of cephalosporin-group]. 19704986282
terpene compounds as drugs. 8. bacteriological and pharmacological properties of terpenyl penicillins. 19704986283
[relations between physical-chemical properties and antimicrobial effect of beta-amino-ketones. 9. cytostatics]. 19704986468
short-lived infection with enterococci of mouse oviduct following mating. 19704986480
pathogenic bacteria and their sensitivity patterns in a hospital population of geriatric patients with chronic disease. 19704985072
the disinfection of swimming pool water. ii. a field study of the disinfection of public swimming pools. 19704985286
[in vitro effect of gentamicin on 5 bacterial species]. 19704986542
effect of ph of medium and size of inoculum on activity of antibiotics against group d streptococcus (enterococcus).seventy-one clinical isolates of 5 species of group d streptococcus (enterococcus) were tested for susceptibility to 15 antibiotics at ph 5.0, 7.4, and 8.5. penicillin g, ampicillin, cephalothin, cephaloridine, and novobiocin were considerably more active against all strains at ph 5.0 than in the more alkaline media. on the other hand, lincomycin, clindimycin, erythromycin, and gentamicin were moderately to markedly more active at ph 8.5. no important differences were noted in the susceptibility ...19704986728
carbon dioxide fixation by extracts of streptococcus faecalis var. liquefaciens.extracts of cells of streptococcus faecalis var. liquefaciens strain 31 incorporated (14)co(2) into aspartate. dialyzed extracts produced radioactive oxalacetate in the absence of exogenously added glutamate and pyridoxal-5'-phosphate and produced radioactive aspartate in the presence of these components. reduced nicotinamide adenine dinucleotide or reduced nicotinamide adenine dinucleotide phosphate could not be substituted for adenosine triphosphate (atp); phosphoenolpyruvate even in the prese ...19704986758
urinary infection in two selected neonatal populations. 19704986864
plate assay methods for amino acids. 10. arginine and histidine. 19704987086
plate assay methods for amino acids. 11. further studies on lysine. 19704987087
pyelonephritis. ix. effect of enterococcal pyelonephritis on mortality in the rat. 19704987124
dihydrofolate and dihydropteroate synthesis by partially purified enzynes from wild-type and sulfonamide-resistant pneumonococcus. 19704391688
enzymatic reduction of the azo dye, acid yellow, by extracts of streptococcus faecalis isolated from rat intestine. 19704392274
degradation of steroids by intestinal bacteria. ii. enzymes catalysing the oxidoreduction of the 3 alpha-, 7 alpha- and 12 alpha-hydroxyl groups in cholic acid, and the dehydroxylation of the 7-hydroxyl group. 19704392598
nucleic acid homology as a measure of genetic compatibility among streptococci and a strain of diplococcus pneumoniae. 19704392941
effects of prototype space diet on the bacterial fecal flora of humans. 19704393064
[gastric microbial flora and its sensitivity to antibiotics following a short-time use of the tetracyclines morphocycline and glycocycline]. 19704395425
membrane mg-(ca)-activated adenosine triphosphatase of escherichia coli: characterization in the membrane-bound and solubilized states.the membrane-associated mg(2+)-activated and ca(2+)-activated adenosine 5'-triphosphatase (ec 3.6.1.3; atpase) activities of escherichia coli were further characterized. the degree of inhibition of membrane-bound mg(2+)-(ca(2+))-atpase by a series of anions (i.e., sodium salts of nitrate, iodide, chloride, and acetate) was found to correlate with the relative chaotropic, or solubilizing, effectiveness of these anions. the enzyme was solubilized from washed membrane ghosts by treatment with 0.04% ...197016559094
enhancement of glutamic-pyruvic transaminase activity in leptospirae by addition of rabbit serum.glutamic-pyruvic transaminase (gpt) in leptospirae was shown to have an optimal temperature of 30 c and ph 8.0. it was activated by cofactor pyridoxal phosphate, similar to gpt from other sources. however, gpt in all leptospirae, such as leptospira canicola, l. icterohaemorrhagiae, l. autumnalis, and l. biflexa, evidently had less activity even when pyridoxal phosphate was present, in comparison with the cultivable spirochete reiter treponeme and streptococcus faecalis. the low level of activity ...197016557719
pyelonephritis xi. effect of growth phase of streptococcus faecalis on serum susceptibility and virulence.rapidly growing streptococcus faecalis was found to be markedly susceptible to the bactericidal activity of normal rat and rabbit sera, whereas stationary-phase organisms were resistant. in contrast, human serum killed neither phase organism. further, human serum was found to interfere with killing by rabbit serum. the serosusceptible, rapidly growing organisms were less virulent than the seroresistant, stationary-phase organisms. this was tested by production of pyelonephritis in the rat after ...197016557772
responses of the peyer's patches in germ-free mice to antigenic stimulation.lymph nodes, spleens, and peyer's patches of germ-free mice are relatively inactive. the tissues are small and contain rare, small, indistinct, germinal zones. when exposed to antigenic stimuli (salmonella paratyphi a and lymphocytic choriomeningitis virus), the tissues become larger and germinal zones appear coincident with antibodies in the blood. the peyer's patches were activated if antigen was absorbed from the intestinal lumen into the circulation but not if the antigen was administered pa ...197016557807
lysis of grouped and ungrouped streptococci by lysozyme.thirty strains of streptococci were tested for lysis with lysozyme, and 29 of these could be lysed by the following method: (i) suspension of the cells to a klett reading of 200 units (no. 42 filter) in 0.01 m tris(hydroxymethyl)aminomethane buffer, ph 8.2, after washing twice with the buffer; (ii) addition of lysozyme to a final concentration of 250 mug/ml with incubation for 60 min at 37 c; (iii) addition of sodium lauryl sulfate (sls) to a final concentration of 0.2% and incubation up to an a ...197016557878
urinary tract pathogens-sensitivity to trimethoprim/sulphamethoxazole.abstract the sensitivity to sulphamethizole, sulphamethoxazole (sm), trimethoprim (tmp) and the combination sm/tmp of freshly isolated urinary tract pathogens from hospital patients was studied. out of 798 strains tested primarily, 47% were found to be fully sensitive to sulphamethizole (tablet method), and 81% fully sensitive to the sm/tmp combination (disk method). out of 423 strains with reduced sensitivity to sulphamethizole, 65% were fully sensitive to sm/tmp. out of 391 strains tested seco ...197025607580
[on the effect of hexetidine in vitro]. 19694388760
synergism between penicillins and lysozyme. data which led to the synthesis of a new antibiotic salt: lysozyme ampicillinate. 3. 19694388763
[pyrrolo-rifamycin: synthesis and antibacterial properties]. 19694388811
antipseudomonal activity of alpha-sulfoaminopenicillins.a series of penicillins characterized by the presence of a sulfoamino or a modified sulfoamino group in the side chain was subjected to in vitro antimicrobial screening tests. although the most potent members of the series were less active than benzylpenicillin against gram-positive bacteria and comparably active against most gram-negative bacteria, they were, on the average, 8 to 16 times more effective against strains of pseudomonas aeruginosa. in other comparative laboratory tests against p. ...19694389660
[doxycycline-a broad spectrum antibiotic of the tetracycline series]. 19694389766
[neopterin and neopterin-3'-phosphate as precursors of folic acid in mycobacterium smegmatis]. 19694389793
faecal flora of patients with ulcerative colitis during treatment with salicylazosulphapyridine. 19694390007
[value of rifampicin in treatment of the patients with bronchopulmonary lesions. a clinical-bacteriological study]. 19694390183
lincomycin. 8. 4'-alkyl-1'-demethyl-4'-depropylclindamycins, potent antibacterial and antimalarial agents. 19694390316
[correlation between structure and antibacterial activity in a series of azo derivatives of salicylic and alpha-oxynaphtholic acid]. 19694391081
haematin-dependent oxidative phosphorylation in streptococcus faecalis. 19694391229
[study of antibacterial and antifungal activity of lutenurine in experiments in vitro]. 19694391463
[microflora of lungs in pneumonias of infants and its sensitivity to antibiotics]. 19694391893
[relationship between chemical constitution and antimicrobial action. 21. preparation of various acyl- and arylisothiocyanates and their fungistatic and bacteriostatic characteristics]. 19694987141
[stimulation of antibodies to pathogenic microorganisms in animals by immunizing them with saprophytes]. 19694986751
[studies on the use of cephalexin in children]. 19694985337
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