Publications
| Title | Abstract | Year(sorted ascending) Filter | PMID Filter |
|---|
| unmineralized fossil bacteria. | unmineralized bacterial cells, mostly micrococcus sp., but including also streptococcus sp. and actinomyces sp., were found in enormous numbers in lake beds of the newark canyon formation of early cretaceous age, eureka county, nevada. the micrococci are black, and have an average diameter about 0.5 micro. similar black micrococci (0.4 to 0.7 micro) were found in profusion in the bottom mud of green lake, new york. about 80 percent of this mud consists of minute idiomorphic calcite crystals and ... | 1963 | 14043337 |
| formation of beta-d-fructofuranosyl-alpha-d-ribohexopyranoside-3-ulose by a micrococcus sp. | 1964 | 14110023 | |
| [production of crystalline histidine decarboxylase by micrococcus sp. n]. | 1964 | 14236809 | |
| the utilization of aconate and itaconate by micrococcus sp. | 1. an organism, identified as micrococcus sp., was isolated by elective culture on aconate; it also grew on itaconate. 2. washed suspensions of the aconate-grown organism readily oxidized intermediates of the tricarboxylic acid cycle, aconate and succinic semialdehyde, but not itaconate. itaconate-grown cells oxidized tricarboxylic acid-cycle intermediates, succinic semialdehyde and itaconate, but not aconate. succinate-grown cells oxidized neither itaconate nor aconate. 3. extracts of aconate-g ... | 1965 | 14342240 |
| [on the antibacterial activity of a strain of micrococcus sp. in regard to staphylococcus aureus; compared with antibacterial activity of 24 antibiotics of current use]. | 1965 | 5861162 | |
| mode of attack on phenol by a micrococcus sp. isolated from coir rets. | 1966 | 5972637 | |
| [c-terminal sequence of amino acids in histidine decarboxylase from lactobacillus 30a and micrococcus sp. n]. | 1967 | 5599815 | |
| [the amino acid pattern of crystalline histidine decarboxylase of micrococcus sp. n. and lactobacillus 30a]. | 1968 | 5678148 | |
| [antibiotic activity in vivo of a staphylococcin produced by a strain of micrococcus sp]. | 1968 | 4899171 | |
| [study of the mechanism of in vitro inhibition of a micrococcus sp strain by a staphylococcus pyogenes strain]. | 1969 | 5373662 | |
| [in vitro study of the mechanism of inhibition of a staphylococcus pyogenes strain by a micrococcus sp strain]. | 1969 | 5373663 | |
| [4-imidazolyl-3-aminobutanone-2--new inhibitor of histidine decarboxylase (gdc) from micrococcus sp. n]. | 1969 | 5398202 | |
| [preparative isolation of crystalline histidine decarboxylase from micrococcus sp. n]. | 1970 | 5498657 | |
| [photosensitized oxidation of histidine decarboxylase from micrococcus sp. n]. | 1970 | 5501670 | |
| [some da on the structure of histidine decarboxylase from micrococcus sp. n]. | 1970 | 5501671 | |
| nuclease production and lysostaphin susceptibility of staphylococcus aureus and other catalase-positive cocci. | some strains of staphylococcus epidermidis and micrococcus sp. produce nucleases. however, thermal stability was shown to be unique to the nucleases of s. aureus. in addition, two micromethods for susceptibility testing to lysostaphin were more precise and convenient than anaerobic glucose fermentation in distinguishing between the genera staphylococcus and micrococcus. | 1971 | 5574317 |
| inhibition of the plaquing efficiency of t4r+ bacteriophage by subtilisin. | the mechanism by which the replicative cycle of t4r(+) phage is inhibited by certain nonhost bacterial systems was investigated. some bacillaceae, especially bacillus subtilis, decreased the plaquing efficiency of this virus more than 95% within 24 hr of exposure. sarcina lutea and micrococcus sp. both failed to cause any significant change in the infectivity of t4r(+) phage. preliminary investigations into the nature of the inhibitory substance(s) suggested that an extracellularly elicited prot ... | 1971 | 4995848 |
| a polymer of glucose and n-acetylgalactosamine 1-phosphate in the wall of micrococcus sp. a1. | 1. the walls of micrococcus sp. a1contain about 43% of a phosphorylated polymer. it was extracted with cold trichloroacetic acid and purified by chromatography on deae-cellulose. 2. the polymer contained equimolar amounts of d-glucose, n-acetylgalactosamine and phosphate, and was readily hydrolysed under gentle acidic conditions to a phosphorylated disaccharide. 3. chemical and enzymic degradation indicated that this was 3-o-alpha-d-glucopyranosyl-n-acetylgalactosamine with a phosphomonoester gr ... | 1971 | 4329871 |
| neutral lipids in the study of relationships of members of the family micrococcaceae. | the organisms studied were those of the family micrococcaceae which cannot participate in genetic exchange with micrococcus luteus and those whose biochemical and physiological characteristics appear to bridge the genera staphylococcus and micrococcus. the hydrocarbon compositions of m. luteus atcc 4698 and micrococcus sp. atcc 398 were shown to be similar to those previously reported for many m. luteus strains, consisting of isomers of branched monoolefins in the range c25 to c31. however, micr ... | 1971 | 5122809 |
| the teichoic acids of micrococcus sp. 24. | 1971 | 5158918 | |
| evidence for extreme uv resistance of micrococcus sp. nctc 10785. | 1972 | 5029860 | |
| halophilic amylase from a moderately halophilic micrococcus. | a moderately halophilic micrococcus sp., isolated from unrefined solar salt, produced a considerable amount of extracellular dextrinogenic amylase when cultivated aerobically in media containing 1 to 3 m nacl. the micrococcus amylase had maximal activity at ph 6 to 7 in 1.4 to 2 m nacl or kcl at 50 c. calcium ion and a high concentration of nacl or kcl were essential for activity and stability of the amylase. the salt response of the amylase depended greatly on the ph and temperature of the enzy ... | 1972 | 5058445 |
| oropharyngeal cultures of patients in protected environment units: evaluation of semiquantitative technique during antibiotic prophylaxis. | a semiquantitative culture technique was used to monitor the microbial flora of the oropharynx of 30 patients receiving antibiotic prophylaxis in protected environment units. after institution of antibiotic prophylaxis, the median concentration of organisms in the oropharynx fell by 2 logs but gradually increased by 1 log and then remained stable. neisseria spp., micrococcus sp., and streptococci were generally eradicated by the antibiotics but were replaced by lactobacilli and yeast. four of ni ... | 1972 | 4555635 |
| [study of the prosthetic group of histidine decarboxylase of micrococcus sp. n]. | 1973 | 4780974 | |
| separation and characterisation of subunits of histidine decarboxylase from micrococcus sp.n. | 1974 | 4829439 | |
| distribution of the isopropylmalate pathway to leucine among diverse bacteria. | alpha-isopropylmalate synthase and beta-isopropylmalate dehydrogenase activities were detected in extracts of the following organisms: chromatium d, rhodopseudomonas spheroides, hydrogenomonas h16, pseudomonas aeruginosa, pseudomonas fluorescens, vibrio extorquens, rhizobium japonicum, alcaligenes viscolactis, escherichia coli b, proteus vulgaris, aerobacter aerogenes, salmonella typhimurium, micrococcus sp., micrococcus lysodeikticus, bacillus polymyxa, bacillus subtilis, and nocardia opaca. th ... | 1974 | 4829932 |
| [partition of histidine decarboxylase subunits from micrococcus sp. n. and their physiocochemical characteristics]. | 1974 | 4461043 | |
| influence of temperature and salt concentration on the growth of a facultatively halophilic "micrococcus" sp. | growth characteristics of a facultatively halophilic strain of micrococcus, capable of growth in medium containing no added nacl and in medium containing 5.5 m nacl, were studied over a range of salt concentrations and temperatures. optimal growth occurred at 35c in a medium containing 1.0 m nacl. in a medium containing 0.1 m nacl, growth only occurred if the incubation temperature was less than 30c. no growth occurred if kcl, licl, nh4cl, mgcl2, or sucrose was substituted for nacl at 35c. a ree ... | 1975 | 1116036 |
| [effect of polyakov's "prints" on the catalytic properties of an enzyme substrate system]. | silicagels, formed in presence of an enzyme (histidine decarboxylase from micrococcus sp. n.), substrate (l-histidine-hcl-h2o) and inhibitor (imidazole) (so-called polyakov's "print") exhibited specific catalytic properties in the reaction of l-histidine decarboxylation. the "prints" of the enzyme, inhibitor and substrate increased the activity of the enzyme-substrate system studied. the increased activity was probably due to the specific adsorption of imidazole ring of the substrate molecule by ... | 1975 | 175565 |
| flourescent properties of histidine decarboxylase from micrococcus sp. n. | a dependency of fluorescence parameters of histidinedecarboxylase (hdc) from micrococcuc sp. n. on ph values is studied. native hds has a short-waved maximum position (325 nm) and a small half-width of the fluorescence spectrum (48nm). the change in the quantum yield of the enzyme fluorescence was parallel with the change of the enzymatic activity. triptophane residues of native hdc are located at hydrophobic region of the enzyme globula. the dependency of hdc flourescence parameters on ph value ... | 1975 | 1114 |
| me2+-(13 s) atpase from micrococcus sp. atcc 398e. the effect of trypsin on the purified enzyme. | by trypsin treatment of highly purified atpase (ec 3.6.1.3) from micrococcus sp. atcc 398e, two enzyme modifications have been obtained. (i) atpase ta, which has about the same activity as untreated atpase. (ii) a protein complex ti, which lacks atpase activity, but nevertheless binds atp as shown by affinity chromatography. trypsin primarily shortens the alpha-chains of the "native" enzyme to alpha-chains and removes the gamma-subunit, thus yielding atpase ta. the formation of the protein compl ... | 1976 | 131581 |
| [localization of pyruvic acid in the histidine decarboxylase of micrococcus sp. n]. | a fragment containing the pyruvic acid residue is isolated from hymotryptic hydrolyzate of alpha-polypeptide chain of carboxymethylated histidine decarboxylase (hd) 14c-phenylhydrasone. the pyruvate residue is estimated to be bind with alpha-amino group of n-terminal phenylalanine in alpha-polypeptide chain. n-terminal alanine is found in hd alpha-polypeptide chain after its reductive amination. it makes possible to determine the estimation of n-terminal amino acid sequence in hd alpha-chain. | 1976 | 974173 |
| [specific modification of free lysine amino groups of histidine decarboxylase from micrococcus sp. n. by trinitrobenzene sulfonic acid]. | it has been found that 14 lysine residues are accessible for trinitrobenzene sulfonic acid (tnbs) in the molecule of histidine decarboxylase (hdc). the other 62 lysine residues in the molecule of native hdc are masked and inaccessible for tnbs. it is demonstrated that the sh- and alpha-amino groups of methionine are not modified by tnbs. a correlation between the decarboxylase activity of the enzyme and the degree of its trinitrophenylation has been studied. hdc, whose molecule contains 3--9 tnp ... | 1976 | 1022283 |
| [amino acid sequence in tryptic peptides of maleylated micrococcus sp. n. histidine decarboxylase beta-polypeptide chain]. | maleilated histidine decarboxylase beta-polypeptide chain, containing 3 arginine residue, was hydrolysed by trypsin. 4 non-overlapping homogenous peptides were isolated, 3 of them containing one arginine residue and the 4th peptide being c-terminal fragment of beta-chain. beta-polypeptide chain is found to consist of 78 amino acid residues and to have molecular weight of 8456. primary structure of each peptide and their possible sequence in beta-chain are determined. | 1976 | 1024578 |
| in vitro synthesis of the unit that links teichoic acid to peptidoglycan. | the role of cytidine diphosphate (cdp)-glycerol in gram-positive bacteria whose walls lack poly(glycerol phosphate) was investigated. membrane preparations from staphylococcus aureus h, bacillus subtilis w23, and micrococcus sp. 2102 catalyzed the incorporation of glycerol phosphate residues from radioactive cdp-glycerol into a water-soluble polymer. in toluenized cells of micrococcus sp. 2102, some of this product became linked to the wall. in each case, maximum incorporation of glycerol phosph ... | 1976 | 815251 |
| study of the structure of the histidine decarboxylase of micrococcus sp. n. by the method of circular dichroism. | ring dichroism spectra (rd) of histidine decarboxylase (hdc) from micrococcus sp. n. at the regions of peptide bonds (200-240 nm) and aromatic amino acids (250-300 nm) absorption are studied. the treatment of rd spectra according to methods of greenfield-fasman, saksena-vetlaufer and mayer permits to conclude that at the ph range within 4-8 the content of ordered structures of alpha-helix type comprises 20%, that of beta-structure type-40%, while the rest 40% are represented with polypeptide cha ... | 1976 | 6076 |
| microbial formation and degradation of dimethylamine. | dimethylamine was formed from trimethylamine in soils of different ph values. the rate of disappearance of the secondary amine from soil was affected by ph and was markedly reduced under anaerobiosis. the accumulation of dimethylamine in cultures of micrococcus sp. provided with trimethylamine depended on the nitrogen sources available to the bacterium but was not greatly influenced by the c-n ratio of the medium. dimethylamine and nitrite accumulated in large amounts at ph 6.0 to 8.0 in culture ... | 1976 | 7191 |
| membrane-bound f1 atpase from micrococcus sp. atcc 398e. purificationa and characterization ny affinity chromatography. | a chemically reactive atp analogue, 6-[(3-carboxy-4-nitrophenyl)thio]-9-beta-d-ribofuranosylpurine 5'-triphosphate (nbs6itp) has been synthesized. it has the ability to form stable thioether bonds between the 6-position of the purine ring and aliphatic mercapto groups. the nucleotide moiety of the reagent has been covalently bound to agarose, via iminobispropylamine and n-acetyl-homocysteine as space with the purpose of producing an affinity chromatography material. the affinity matrix binds sol ... | 1976 | 134891 |
| change in the ratio of cytochrome oxidase activity to nitrite reductase activity of pseudomonas aeruginosa nitrite reductase with the kind of c-type cytochrome used as an electron donor. | the ratio between the nitrite reductase and cytochrome oxidase activities of pseudomonas aeruginosa nitrite reductase [ec 1.9.3.2.] varies with kind of c-type cytochrome used as the electron donor. withe cytochrome c-548, 554 (micrococcus sp.), the nitrite reductase activity is greater than the cytochrome oxidase activity, while the former is smaller than the latter with cytochrome c-554 (navicula pelliculosa). the aerobic oxidation catalyzed by this enzyme of denitrifying bacterial ferrocytoch ... | 1976 | 178646 |
| biological values of the infant, juvenile, and adult agouti (dasyprocta sp) with emphasis on microbial flora. | normal values for intestinal flora were determined on four adult, two juvenile, and four infant agoutis (dasyprocta sp) maintained at our institution. serologic, hematologic, biochemical, and histologic observations were also made on these same agoutis, and serologic, microbiologic, and endoparasitic tests were made on serum and fecal samples from agoutis maintained at other institutions. streptococci, lactobacilli and nonenteropathogenic escherichia coli were isolated from cecal contents of all ... | 1976 | 185456 |
| continuous-culture studies of interactions among human skin-commensal bacteria. | chemostat studies were made of an antibiotic-producing staphylococcus epidermidis strain (s6+), a similar, but antibiotic non-producing s. epidermidis strain (s6-), and a sensitive indicator strain of micrococcus sp. (m7). pure and mixed continous cultures were investigated at low population levels (in 0-1% peptone water) and at higher levels (in 0-5% peptone water). strain s6+ antagonised the growth of strain m7 when its colony count was maintained above 10(7-0) per ml, while strain s6- remaine ... | 1977 | 323493 |
| a special report: four-year study of a boy with combined immune deficiency maintained in strict reverse isolation from birth. | a 4-year study of a boy with combined immune deficiency is presented, and the impact of this disease on various aspects of his growth and development is examined. there is no evidence of immune deficiency in either parent or in the genetic background on the maternal side. three children of a brother of the mother's father may have had immune deficiencies but two have grown to be teenagers with no problems. another died. at autopsy, however, lymph nodes appeared normal. the deceased older brother ... | 1977 | 401538 |
| f1-atpase from micrococcus sp. atcc 398. purification by ion-exchange chromatography and further characterization. (auto)proteolysis and dissociative effects. | the preparation of highly purified f1-atpase from micrococcus sp. atcc 398 by application of deae-sepharose cl-6b chromatography as final step is described. this enzyme consists of five subunits of different molecular weight: alpha (65000), beta (55000),gamma (35000), delta (20000), and epsilon (17000). disc electrophoresis on 5% polyacrylamide gels removes the epsilon-polypeptide yielding an active atpase complex with four different subunits: alpha, beta, gamma, delta. additionally, by variatio ... | 1977 | 145365 |
| effect of environmental temperature stress on intramammary infections of dairy cows and monitoring of body and intramammary temperatures by radiotelemetry. | four dairy cows were stressed by exposure to hot and cold environments in tests to determine the effect of environment on milk yield, somatic cell counts, and california mastitis test scores of milk from all mammary quarters and on bacterial counts of milk from infected quarters. two cows were held in temperature-controlled rooms for successive 5-day periods at moderate (21 to 28 c), cold (-16 c), moderate, hot (36 to 37 c), and moderate environments. the cold and hot sequences were reversed for ... | 1977 | 842915 |
| the linkage of sugar phosphate polymer to peptidoglycan in walls of micrococcus sp. 2102. | 1. protein-free walls of micrococcus sp. 2102 contain peptidoglycan, poly-(n-acetylglucosamine 1-phosphate) and small amounts of glycerol phosphate. 2. after destruction of the poly-(n-acetylglucosamine 1-phosphate) with periodate, the glycerol phosphate remains attached to the wall, but can be removed by controlled alkaline hydrolysis. the homogeneous product comprises a chain of three glycerol phosphates and an additional phosphate residue. 3. the poly-(n-acetylglucosamine 1-phosphate) is atta ... | 1978 | 629757 |
| [determination of the molecular weight and radius of gyration of lactobacillus 30a histidine decarboxylase and micrococcus sp. n. histidine decarboxylase]. | 1978 | 647048 | |
| [quaternary structure of histidine decarboxylase according to small-angle x-ray diffraction and electron microscopic findings]. | the data on small angle x-ray scattering with histidine decarboxilase (hdc) from micrococcus sp. n. were analysed and a line of succesively improving approximations of the molecule shape was found: by oblate ellipsoid a:b:c = 1:10.63, by continuous cylinder and hollow cylinder with h = 50 a, 2r = 76 a, 2r = 8a. biochemical data and electron micrographs of hdc obtained made possible to distinguish subunits and thus to increase resolution of the model. the model of the enzyme molecule consisting o ... | 1978 | 698248 |
| the functional tryptophan and tyrosine residues of f1 atpase of micrococcus sp. atcc 398. | 1978 | 146676 | |
| the enzymic synthesis of beta-[32p]udp-n-acetylglucosamine. | cells of micrococcus sp. 2102 incorporate inorganic [32p]phosphate from the medium into the sugar-phosphate polymer of the wall. controlled acid hydrolysis of sodium dodecyl sulphate-extracted cells gives n-acetylglucosamine 6-[32p]-phosphate which can be purified by ion-exchange chromatography and incubated with utp in the presence of crude preparations of phosphoacetylglucosamine mutase from neurospora crassa and utp:n-acetylglucosamine 1-phosphate phosphotransferase from bacillus licheniformi ... | 1978 | 9762094 |
| transformation of mercuric chloride and methylmercury by the rumen microflora. | the microflora in strained rumen fluid did not methylate or volatilize 203hg2+ at detectable rates. however, there was an exponential decay in the concentration of added ch3hg+, which was attributed to demethylation. the major product of demethylation was metallic mercury (hg0), and it was released as a volatile product from the reaction mixture. demethylation occurred under both anaerobic and aerobic conditions. the rate of demethylation was proportional to the concentration of added ch3hg+-hg ... | 1979 | 539820 |
| association between azotobacter and other soil bacteria and its effect on nitrogen fixation. | the association between a. vinelandii and either agrobacterium sp. or micrococcus sp., which are usually found as contaminants in azotobacter cultures, was investigated. in comparison with pure cultures, association increased the microbiol counts in addition to increasing nitrogen fixation rates and efficiency. in liquid cultures higher azotobacter densities were observed in the top 5 cm of the column concomitant with lowering the economic coefficient of utilization of carbonaceous compounds, wh ... | 1979 | 543344 |
| microbial degradation of a macrotetrolide miticide in soil. | macrotetrolide, a miticide consisting of tetranactin, trinactin, and dinactin, was readily biodegradable and hence did not accumulate in soil. [u-c]macrotetrolide was rapidly degraded via its constituent hydroxycarboxylic acids to carbon dioxide and water. in culture media, however, the mixture was hydrolyzed to homononactic and nonactic acids by three strains of bacillus sp. and two of micrococcus sp. the latter strains were able to hydrolyze 500 mug of the antibiotic per ml within a few days a ... | 1980 | 16345605 |
| [tryptic peptides of maleylated alpha-chain of histidine decarboxylase from micrococcus sp. n]. | the maleylated alpha-chain of histidine decarboxylase from micrococcus sp. n., containing 10 arginine residues was hydrolyzed by trypsin, and 9 peptides were isolated from the tryptic hydrolysate. a comparative study of the amino acid sequence in the tryptic peptides of alpha- and beta-chains of histidine decarboxylase allowed to establish the intramolecular homology in the alpha-chain primary structure and homology between the alpha- and beta-chains. | 1981 | 7248384 |
| [role of tryptophan in the enzymatic activity of histidine decarboxylase from micrococcus sp. n]. | the effect of n-bromosuccinimide (bsi) on micrococcal histidine decarboxylase in 0.07 m phosphate buffer, ph 5.6 was studied. data from spectral and amino acid analyses suggest that at 20-fold molar excess of bsi three of 12 tryptophane residues undergo selective modification, resulting in 80-85% loss of the enzyme activity. using fluorescent method and polyacrylamide gel electrophoresis, it was shown that modification of these reactive tryptophane residues does not cause structural changes of t ... | 1981 | 7317525 |
| [effect of histidine analogs and histidyl-containing dipeptides on the decarboxylase activity of micrococcus sp. n. histidine decarboxylase]. | l-histidinol and l-histidine hydroxamate were shown to inhibit competitively histidine decarboxylase from micrococcus sp. n responsible for histamine biosynthesis. constants of their inhibitory effect were found. histidyl-containing dipeptides did not exhibit the pronounced inhibitory effect. the rate of inhibition was increased after esterification of histidyl dipeptide. kinetics of the histidine decarboxylase inhibition by l-histidyl-l-leucine methyl ester was studied. | 1981 | 7336657 |
| [laboratory and clinical studies on cefotaxime in obstetrics and gynecology (author's transl)]. | the following results have been obtained in our basic and clinical studies to examine a new cephalosporin derivative, cefotaxime (ctx). for basic study purpose, we injected 1 g of ctx to 6 patients who had received simple total hysterectomy and measured its level in elbow vein, uterine artery, corpus uteri, cervix uteri, endometrium, oviduct and ovary. any definitive conclusion should not be drawn from these results, since they have too big variation. however, slightly higher levels were achieve ... | 1981 | 6270397 |
| antigonococcal and antibacterial spectra of some bacterial isolates of the urogenital flora. | the antigonococcal and antibacterial spectra of bacterial isolates of the urogenital flora selected for their in vitro interference of neisseria gonorrhoeae growth were determined on solid medium. a broad antigonococcal spectrum was found for all the selected isolates when they were tested against gonococcal virulent (t1) strains, penicillinase producing strains and strains belonging to the auxotypes nr, thi-, pro- hyx-, pro- meth- thp-, arg- meth- and arg- hyx- ura-. except for the group d stre ... | 1981 | 6792659 |
| arthritis in ducks. i. aetiology and public health aspects. | a pure culture of potentially pathogenic bacteria was obtained from 90% of 233 joints examined, originating from 232 ducks condemned due to arthritis at slaughter. s. typhi-murium and staph. aureus were isolated from 61% and 18% of the joints respectively. e. coli was obtained from 6% of the cases, serogroup 078 being most prevalent. e. rhusiopathiae, y. pseudo-tuberculosis, p. vulgaris, micrococcus sp., streptococcus sp., acinetobacter sp., flavobacterium sp., pseudomonas sp. and ae. formicans ... | 1981 | 18770119 |
| microbiological sampling of towels: comparison of 7 methods. | pull-out roller towels were infected with bacteria and examined with 5 non-destructive methods. in addition to three traditional methods, the agar contact method (a), the swab method (s) and the tape method (t), two lesser known methods have been applied: the rinsing box method (r), new developed in the laboratory, and the filter method (f). in the first (r), the towel is fixed between the lid and the cup of a metal box containing a rinsing liquid; shaking the box completes the test. in the seco ... | 1982 | 6750989 |
| histidine decarboxylase of lactobacillus 30a. comparative sequences of the beta chain from wild type and mutant enzymes. | manual and automated sequencing of peptides isolated from tryptic, chymotryptic, and staphylococcus aureus v8 protease digests of the beta chain of histidine decarboxylase from lactobacillus 30a have established the following sequence for the wild type protein: nh2-ser-gly-leu-asp-ala-lys-leu-asn-lys-leu-gly-val-asp-arg-ile-ala-ile-ser-pro -tyr-lys-gln-trp-thr-arg-gly-tyr-met-glu-pro-gly-asn-ile-gly-asn-gly-tyr-val-thr-gly-leu-lys-val-asp-ala-gly-val-arg-asp-lys-ser-asp-asp-asp-val-leu-asp-gly-i ... | 1982 | 6752140 |
| identification of coagulase-negative staphylococci with the api staph system. | a kit for the identification of staphylococci based on the biochemical criteria proposed by kloos and schleifer (w.e. kloos and k.h. schleifer, j. clin. microbiol., 1:82-88, 1975) is now available commercially. the system was used to identify 100 strains of coagulase-negative staphylococci isolated from various body sites as the primary etiological agent of clinical infection. the increasing importance of staphylococci and their resistance to antibiotics provided the rationale for such an invest ... | 1982 | 6924937 |
| metabolism of dimethylphthalate by micrococcus sp. strain 12b. | during growth of micrococcus sp. strain 12b with dimethylphthalate, 4-carboxy-2-hydroxymuconate lactone (chml, x) and 3,4-dihydroxyphthalate-2-methyl ester (xi) were isolated from culture filtrates. chml is the lactone of intermediate 4-carboxy-2-hydroxymuconate (ix). accumulation of xi which is not a substrate for 3,4-dihydroxyphthalate-2-decarboxylase in strain 12b afforded an easy access to the preparation of 3,4-dihydroxyphthalate. | 1982 | 7085569 |
| metabolism of dibutylphthalate and phthalate by micrococcus sp. strain 12b. | micrococcus sp. strain 12b was isolated by enriching for growth with dibutylphthalate as the sole carbon and energy source. a pathway for the metabolism of dibutylphthalate and phthalate by micrococcus sp. strain 12b is proposed: dibutylphthalate leads to monobutylphthalate leads to phthalate leads to 3,4-dihydro-3,4-dihydroxyphthalate leads to 3,4-dihydroxyphthalate leads to protocatechuate (3,4-dihdroxybenzoate). protocatechuate is metabolized both by the meta-cleavage pathway through 4-carbox ... | 1982 | 7085570 |
| rapid identification of staphylococcus aureus and streptococcus pneumoniae from blood cultures. | simultaneous application of the lysostaphin sensitivity test for identification of staphylococcus aureus and the deoxycholate test for the identification of streptococcus pneumoniae was evaluated for reliability in rapid identification (1 h) of these organisms from blood cultures by using bactec 6b and 7c bottles. the procedure was applied to 127 cultures, 74 lysostaphin tests and 53 deoxycholate tests. lysostaphin-tested organisms included 23 s. aureus, 40 staphylococcus epidermidis, 1 listeria ... | 1983 | 6826713 |
| [kinetic properties and functional role of domains of micrococcus sp n. histidine decarboxylase]. | 1983 | 6838927 | |
| [evaluation of bactericidal activity of antiseptics on the cutaneous flora of holoxenic hairless mouse]. | holoxenic hairless mice were used in an experimental model to study the in vivo bactericidal activity of several antiseptics. in these experiments skin was sampled by biopsy; after contact between antiseptic and skin, bactericidal activity was neutralized. the results obtained with several products (polyvinylpyrrolidone iodine, alcoholic iodine, ethanol, chlorhexidin, benzalkonium chloride, mercurothiolic acid, trichlorocarbanilid and hexachlorophen) were quite similar to those obtained on human ... | 1983 | 6847033 |
| [isolation from micrococcus sp. n. of a homogeneous heme-containing catalase and a crystalline protein with catalase activity]. | a method for isolation and purification of catalases from the culture of micrococcus sp. n. grown under aeration conditions is described. heme-containing catalase (i) and the protein possessing a catalase activity (ii) were separated by fractionation with ammonium sulfate. the specific activity of the highly purified protein causing degradation of h2o2 is 200 times less than that of the heme-containing enzyme. the molecular weights of catalases i and ii as determined by electrophoresis in polyac ... | 1983 | 6671115 |
| effect of microorganisms on in situ uranium mining. | the extraction of some metal values, e.g., uranium or copper, may be accomplished by using solutions to remove metals from ore bodies without practicing conventional mining. this process is referred to as in situ leaching and has been used industrially to recover uranium. the growth of microbial populations during in situ leaching is believed to be one of the causes of flow path plugging in the ore body, which results in decreased uranium production. leach solution and solid samples from well ca ... | 1983 | 16346395 |
| [physico-chemical characteristics of catalases from micrococcus sp. n]. | the physico-chemical properties of heme-containing and non-heme catalases isolated from the cell culture of micrococcus sp. n. grown under intensive aeration were studied. the enzyme preparations were homogenous during polyacrylamide disc electrophoresis. the spectral and functional properties of the enzymes (e. g. specific activity, subunit molecular weight, quaternary structure, amino acid composition, immunoprecipitability, n-terminal amino acid sequences) were investigated. monocrystals of n ... | 1984 | 6713021 |
| [proteolytic resistance and thermostability of catalase and histidine decarboxylase from micrococcus sp. n]. | catalase from micrococcus sp. n. is not hydrolyzed by trypsin at the protein/protease (pn/pe) exceeding 10/1. histidine decarboxylase (hdc) loses 50% of activity after the first nine minutes of hydrolysis at the pn/pe ratio equal to 6/1, followed by a slow linear inactivation. investigation of thermal stability at varying ph and temperatures demonstrated that catalase and hdc preserve 70-80% of activity after 5 minutes of incubation at 72 degrees c only at ph approaching the optimal ph of enzyma ... | 1984 | 6722300 |
| a note on the temperature tolerance of legionella. | a strain of legionella pneumophila serogroup 1 isolated from the environment had a decimal reduction time in water at 50 degrees c (d50) of 111 min, a d54 of 27 min and a d58 of 6 min. there was little loss of viability at 46 degrees c. other environmental organisms, a pseudomonas sp., a micrococcus sp. and a coliform survived less well at these temperatures. a species of sarcina had a survival time greater than the l. pneumophila at all the temperatures tested. other strains of legionellas were ... | 1984 | 6725165 |
| effect of physiological age on radiation resistance of some bacteria that are highly radiation resistant. | physiological age-dependent variation in radiation resistance was studied for three bacteria that are highly radiation resistant: micrococcus radiodurans, micrococcus sp. isolate c-3, and moraxella sp. isolate 4. stationary-phase cultures of m. radiodurans and isolate c-3 were much more resistant to gamma radiation than were log-phase cultures. this pattern of relative resistance was reversed for isolate 4. resistance of isolate 4 to uv light was also greater during log phase, although heat resi ... | 1984 | 6378091 |
| [spoilage microorganisms encountered in ultra-high temperature processed milk]. | 40 strains of aerobic or facultative anaerobic microorganisms were isolated from a total of 37 spoiled ultra high temperature processed milk. 13 of them were identified as the genus bacillus. they were 6 b. cereus, 5 b. licheniformis, 1 b. brevis and 1 b. pumilus. the other 27 strains were nonsporeforming microorganisms, which included 5 yeasts, 2 pseudomonas sp., 3 streptococcus sp., 12 lactobacillus sp., 1 shigella sp., 1 aeromonas sp. and 3 micrococcus sp. results indicate that the spoilage o ... | 1984 | 6468029 |
| scanning electron microscopy of dairy equipment surfaces contaminated by two milk-borne micro-organisms. | ethanol dehydration followed by argon replacement induced drying (arid) was found to be a suitable method for the preparation of glass, stainless steel and rubber surfaces which had been in contact with inoculated milk and which were to be examined using scanning electron microscopy (sem). this technique was used to examine samples of all three materials which had been subjected to both single and repeated inoculation with whole milk containing a pseudomonas sp. or a micrococcus sp. and incubate ... | 1984 | 6490557 |
| reversible inhibition of bacterial growth after specific inhibition of spermidine synthase by dicyclohexylamine. | the effect of dicyclohexylamine on seven freshly isolated bacterial strains of mastitis pathogens was studied. streptococcus uberis was the most sensitive strain investigated, since 5 mm-dicyclohexylamine totally arrested its growth and 1.25 mm of the drug caused 60% growth inhibition. the staphylococcus aureus, escherichia coli and pseudomonas aeruginosa strains were also sensitive to the drug, but less so than strep. uberis, since 5 mm drug caused only partial inhibition of growth. micrococcus ... | 1984 | 6508744 |
| characterization of a monoclonal antibody specific for lipoteichoic acid from various gram-positive bacteria. | a hybrid cell line, 3g6, producing monoclonal antibody (mab) against the polyglycerophosphate (pgp) backbone of lipoteichoic acids has been derived by the polyethylene glycol-induced fusion of mouse myeloma cells and spleen cells from mice immunized with partially purified glucosyltransferase from culture supernatant of streptococcus mutans strain 6715. immunodiffusion tests and elisa revealed that the antibody reacted with purified pgp from group a streptococcus pyogenes strain sv as well as cr ... | 1984 | 6083437 |
| quantitative determination of catalase activity produced by neisseria gonorrhoeae, staphylococcus epidermidis, neisseria meningitidis and other bacterial strains using the catalasemeter. | the conventional catalase test only gives qualitative or semi-quantitative information of the amount of catalase activity produced. using such a method, we have selected two strong catalase activity producers (neisseria gonorrhoeae g-10, staphylococcus epidermidis 66) and a weak producer (neisseria meningitidis 34702). quantitative determination of the catalase activity produced by these strains was done by the disk-flotation method using the catalasemeter. the production of catalase activity in ... | 1985 | 3924653 |
| a note on antibiotic resistance in the bacterial flora of raw sewage and sewage-polluted river tigris in mosul, iraq. | polluted water samples collected from the river tigris in the vicinity of a raw sewage outfall were examined for the incidence of antibiotic resistance among coliform bacteria on three occasions during 1983. eighty percent or more of the coliform bacteria were resistant to one or more antibiotics. at the same time, raw sewage samples were examined for the incidence of antibiotic-resistant bacteria, and escherichia coli, pseudomonas spp. and staphylococcus spp. were selected for sensitivity testi ... | 1985 | 3997692 |
| aerobic bacterial flora from dead-in-shell chicken embryos from nigeria. | dead-in-shell chicken embryos from two commercial hatcheries in anambra state of nigeria were investigated for isolation of aerobic bacteria. for this purpose, 79 pooled samples containing 632 dead-in-shell chicken embryos were cultured. from these samples, 23 isolates of escherichia coli and 25 isolates of staphylococcus aureus were recorded. other bacterial species isolated included micrococcus sp. (fifteen isolates), klebsiella sp. (thirteen isolates), pseudomonas sp. (nine isolates), and pro ... | 1985 | 4074232 |
| [effect of s6472 and cefaclor on bacterial flora in adult human feces]. | s6472 is a mixture of cefaclor (ccl) granules with gastric-soluble coating and those with enteric-soluble coating at the ratio (in potency) of 4 to 6. with administration of this formulation, a prolonged blood level of ccl is obtained. s6472 and ccl were administered orally to 19 healthy male volunteers between 20 and 27 years of age (mean: 23 years) weighing between 51 and 80 kg (mean: 64.7 kg). four subjects were given 2 capsules and 5 subjects were given 4 capsules each containing 187.5 mg of ... | 1986 | 3702058 |
| [localization of cysteine residues in the alpha-chain of histidine decarboxylase from micrococcus sp. n]. | it was shown that the alpha-chain of histidine decarboxylase of micrococcus sp. n. is split off by 2-nitro-5-thiocyanobenzoic acid at only one of the two cysteine residues. determination of the c-terminal sequences, amino acid composition, molecular weight of the fragments obtained demonstrated that these fragments constitute a complete alpha-chain whose cleavage occurs at the cysteine residue which is readily modified by sh-reagents. the ile-cys peptide bond appeared to be resistant to cleavage ... | 1986 | 3730446 |
| [effect of cefminox on bacterial flora in human adult feces]. | cefminox (cmnx), a new cephamycin, was administered by one shot intravenous injection twice daily with a dose of 1,000 mg each time for 5 days to seven healthy male volunteers whose ages ranged from 21 to 28 years (mean: 25 years) and body weights were from 60 to 92 kg mean: 72 kg). the effect of the drug on fecal bacterial flora was investigated and the concentrations of the drug in feces were measured on 5th day before the treatment, on 0, 3rd, and 5th day (the final day of the treatment) duri ... | 1986 | 3761549 |
| simple method to demonstrate radiation-inducible radiation resistance in microbial cells. | a simple method for detection of radiation-inducible radiation resistance was developed by irradiating aliquots (0.01 ml) of cell suspension on agar plates. part of each experimental plate was subjected to an induction treatment, and subsequent radiation resistance was compared with that of untreated cells on the same plate. the uv radiation resistance of a micrococcus sp. was increased approximately 1.6 times by an induction treatment. this simple procedure of irradiating cells in a "fixed" pos ... | 1986 | 3513701 |
| purification and characterization of extracellular caseinolytic enzyme of micrococcus sp. mcc-315 isolated from cheddar cheese. | micrococcus sp. mcc-315, an organism isolated from cheddar cheese, produced an extracellular calcium metalloenzyme. this protease was purified to homogeneity from culture supernatant by precipitation with ammonium sulfate (50 to 70% saturation) and gel filtration through sephadex g-100, resulting in about 82 times increase of specific activity and 53% recovery of the enzyme. the protease exhibited a ph optimum at 10.6 for both whole casein and beta-casein. it had optimum activity for whole casei ... | 1986 | 3519702 |
| evaluation of selective media for primary isolation of treponema hyodysenteriae and treponema innocens. | a total of 2450 samples of feces, intestinal contents and colon mucosal scrapings were bacteriologically examined. a total of 53 strains of treponema sp. were isolated, and 45 strains of bacteroides sp., 30 strains of e. coli, 30 strains of micrococcus sp. and 10 strains of streptococcus d isolates were randomly selected. growth promoting studies showed statistically significant stimulation of treponema sp. growth by yeast extract, chicken egg yolk and rumen fluid. different growth inhibitors we ... | 1986 | 3533408 |
| the nosocomial colonization of t. bear. | a national effort to reduce nosocomial infections includes a program developed at the national institutes of health to encourage handwashing in hospitals and day care centers. the program promotes a symbolic teddy bear (t. bear) with slogans to remind hospital personnel and patients to practice handwashing. one of the items used is a stuffed toy t. bear to be dispensed to the hospitalized child. considering the manner in which children handle stuffed toys, we suspected the t. bear might serve as ... | 1986 | 3640737 |
| [aerobic bacterial flora of the nasal cavity of rabbits]. | on the basis of bacteriological examinations carried out in april 1984 on 60 intranasal swabs, aerobic respiratory microbes were studied in rabbits. differences in flora between animals with and without respiratory diseases were studied. fourteen bacterial species were identified with no difference due to the pathological status. they were: bordetella bronchiseptica, staphylococcus epidermidis, streptococcus faecalis, pasteurella multocida, staphylococcus aureus, bacillus sp., branhamella catarr ... | 1986 | 3096189 |
| [effect of norfloxacin on bacterial flora in human feces]. | norfloxacin (nflx), a synthetic oral antibacterial agent of quinolone carboxylic acid, was given orally for 5 full days at a dose of 200 mg, three times daily after each meal to healthy normal men with ages between 22 and 25 years weighing 53.0 to 84.0 kg (average 67.0 kg). the actual regimen followed was that the drug was administered twice after lunch and supper on the first day of dosing, and once after breakfast on the last day of dosing. on the 5th day before the start of dosing, on the fir ... | 1987 | 3694785 |
| biotransformation of 3-methylphthalate by micrococcus sp. strain 12b. | when micrococcus strain 12b grown on o-phthalate was incubated with 3-methylphthalate, three compounds accumulated. these were shown to be 2-pyrone-3-methyl-4,6-dicarboxylic acid, 3,4-dihydroxy-6-methylphthalic acid, and 5-hydroxy-3-methyphthalic acid, all previously undescribed. a pathway for the formation of these compounds is proposed. | 1987 | 3448154 |
| ofloxacin for prevention of bacterial infections in granulocytopenic patients. | we studied the potential value of oral ofloxacin (200 mg twice daily) for selective decontamination and infection prevention in 40 granulocytopenic patients with acute leukemia, blast crisis of chronic myelogenous leukemia, hairy cell leukemia or severe aplastic anemia. the quality of selective decontamination was acceptable with rapid elimination of enterobacteriaceae from the alimentary tract, only a slight decrease in concentrations of anaerobes in faeces, and a small number of newly acquired ... | 1987 | 3481358 |
| microbiology of the genitalia of nulliparous and postpartum savanna brown goats. | a study of the bacterial flora of the genitalia of nulliparous savanna brown does was carried out both before breeding and at different intervals postpartum to investigate the type of microbial organisms that could be present in the uterus, cervix and the vagina respectively. of 29 pre-breeding vaginal swabs, staphylococcus sp. was isolated from 20 goats, streptococcus sp. from 15 goats and micrococcus sp. from four goats. mycoplasma agalactiae was isolated from five goats. the postpartum vagina ... | 1987 | 3590621 |
| microbiological degradation of malodorous substances of swine waste under aerobic conditions. | phenol, p-cresol, and volatile fatty acids (vfa; acetic, propionic, isobutyric, butyric, isovaleric, and valeric acids) were used as odor indicators of swine waste. aeration of the waste allowed the indigenous microorganisms to grow and degrade these malodorous substances. the time required for degradation of these substances varied according to the waste used, and it was not necessarily related to their concentrations. using a minimal medium which contained one of the malodorous compounds as so ... | 1987 | 16347254 |
| a marine micrococcus produces metabolites ascribed to the sponge tedania ignis. | extracts of the sponge tedania ignis have been reported to contain several diketopiperazines. as part of an investigation of the commensal and symbiotic microflora of sponges, we have consistently isolated, from specimens of t. ignis, a micrococcus sp. which produces diketopiperazines in laboratory cultural media. this is the first demonstration that a bacterium associated with a sponge produces secondary metabolites ascribed to the sponge host. | 1988 | 3197807 |
| elimination of mercury, cadmium and antibiotic resistance from acinetobacter lwoffi and micrococcus sp. at high temperature. | resistance determinants for hgcl2 and cdcl2 were eliminated along with a number of antibiotic resistance factors from acinetobacter lwoffi and micrococcus sp. at 44 degrees c. these organisms were orginally resistant to hgcl2, merbromin, cdcl2, pb(no3)2, benzylpenicillin, erythromycin, carbenicillin, tetracycline and sulfadiazine. four different types of mutants from a. lwoffi (type i to iv) and one type of mutant from micrococcus sp. (type v) were obtained, depending on the loss of particular r ... | 1988 | 3397010 |
| antimicrobial activity of stratum corneum lipids from normal and essential fatty acid-deficient mice. | among the cutaneous effects of an essential fatty acid deficient (efad) diet are hyperdesquamation, increased transepidermal water loss (tewl), and altered lipid profiles, characteristics also common to inflammatory dermatoses. because fatty acids are antimicrobial, we examined the indigenous skin flora of normal and efad hairless mice, and compared the antimicrobial efficacy of lipids extracted from their stratum corneum. efad mice supported 100-fold more bacteria than normal mice, and were the ... | 1989 | 2649598 |
| [the asepsis problem at the office of the ent physician]. | microorganisms were determined in a microbiological study in the near environment of ent working places. we found especially saprophytic flora as micrococcus sp., staphylococcus epidermidis and aerobic spore-forming microorganisms on 54 examination instruments of 2 outpatient and 2 inpatient treatment areas. in 22% of the instrument examinations, microbiological controls were negative. there were no pathogenic microorganisms. | 1989 | 2653348 |
| [typing of skin staphylococci using the commercial identification system staphy-test]. | the authors examined 150 strains of s. aureus and 180 strains of s. epidermidis isolated from different dermatoses. the determination of s. aureus and s. epidermidis was based on common routine tests as plasmacoagulase, production of hemolysin, acid production from mannitol and production of pigment. this determination was verified with the aid of a new identification system staphytest. the staphytest confirmed the previous diagnosis of s. aureus in 60.66% and that of s. epidermidis in 31.66% of ... | 1989 | 2676626 |
| screening of isoquinoline alkaloids and their derivatives for antibacterial and antifungal activities. | a screening test of antimicrobial activities for some of the isoquinoline alkaloids and their first and second hofmann elimination products was conducted in this study. results showed that (+)-actinodaphnine (1), (+)-n-me-actinodaphnine (2), (+)-anonaine (17), (-)-xylopine (19) and (-)-n-me-xylopine mei (20), had the strongest inhibitory activities against three g(+) bacteria (bacillus cereus, micrococcus sp. and staphylococcus aureus) mic greater than or equal to 50 micrograms/ml). whereas anhy ... | 1989 | 2733073 |
| [primary structure of histidine decarboxylase]. | the results of investigation of the primary structure of the histidine decarboxylase micrococcus sp. n. are reported. a comparison of the primary structure of the histidine decarboxylase micrococcus sp. n. with that of the lactobacillus 30a enzyme suggests the alignment with a 52% identity. it is therefore highly probable that two proteins have evolved from common ancestry. the conservative amino acid sequences with residues (pyruvate, cysteine) of the active center have been found. | 1989 | 2914171 |
| [milk chloride level as an indicator of bovine mastitis]. | the aim of this study was to determine an influence of udder infection on milk chloride level and on milk productivity of cows of black and white race. bacteriological analysis was performed by bacterial isolation from milk collected in sterile conditions from single lobes of mammary gland. the study was aimed to detect the following bacteria: streptococcus agalactiae, streptococcus uberis, streptococcus agalactiae, staphylococcus aureus, staphylococcus epidermidis, actinomyces pyogenes, enterob ... | 1990 | 2084451 |