| glycogen synthesis by amylosucrase from neisseria perflava. | amylosucrase (sucrose:1,4-alpha-d-glucan 4-alpha-glucosyltransferase; ec 2.4.1.4) which mediates the transfer of the glucosyl moiety of sucrose to a growing alpha-1,4-glucan chain is a constitutive enzyme of neisseria perflava. the products of enzymic action are insoluble glycogenlike polysaccharides and fructose, the latter being a competitive inhibitor of the enzyme (ki=20 mm). the enzyme is extremely stable and appears to bind very tightly to its polymerized product. properties of product-bou ... | 1977 | 20219 |
| immunochemical study of the peptidoglycan of gram-negative bacteria. | the specificity of antibodies directed against the peptidoglycan of gram-negative bacteria was studied. the peptidoglycans of proteus vulgaris, escherichia coli, moraxella glucidolytica, neisseria perflava, give identical precipitin reactions. by means of inhibition studies with various peptidoglycan subunits and synthetic peptides, it was shown that the antibodies are essentially directed against the peptide moiety of the peptidoglycan: l-ala-d-glu (l)-mesoa2pm-(l)-d-ala, that the peptide react ... | 1976 | 60233 |
| isolation and characterization of a bacteriophage specific for neisseria perflava. | six isolates from normal throat samples have been shown to contain phage active against neisseria perflava. the phage isolates were similar in terms of host range, latent period, burst size, antigenic properties, morphology, and nucleic acid content. neutralization studies with antisera demonstrated that the isolates exhibited a very high degree of serological relatedness. these results taken together suggested that the isolates represented a single strain of bacteriophage. this phage, which we ... | 1976 | 60348 |
| the role of common antigenic determinants of human lung tissues and some microorganisms in pathogenesis of bronchial asthma. localization of common antigenic determinants in the cells of "neisseria perflava" and cells of human lung tissues. | | 1977 | 68670 |
| [experimental sensitizing activity of neisseria perflava]. | in experiments conducted on guinea pigs the sensitizing activity of neisseria perflava isolated from the mucous membranes of the bronchi of patients with infectious asthma was studied. a possibility of reproducing active skin anaphylaxis after ovary and of the contraction-test of the tracheal-chain by the neisseria antigens was shown. neisseria perflava was found to possess a greater sensitizing activity than staphylococcus aureus and klebsiella pneumoniae inhabiting the bronchi of patients with ... | 1977 | 71172 |
| [in vitro immunologic changes in 4 patients with lepromatous leprosy and 4 patients with borderline leprosy treated with neisseria perflava for 17 to 25 months]. | | 1979 | 121847 |
| enzyme electrophoretograms in the analysis of taxon relatedness of micrococcus cryophilus, branhamella catarrhalis and atypical neisserias. | extracts were prepared from micrococcus cryophilus, several strains of branhamella catarrhalis and neisseria spp. esterases, nadp-dependent isocitrate dehydrogenase and malate dehydrogenase activities were assayed after electrophoresis of extracts of polyacrylamide gels. except for neisseria perflava and n. sicca which resolved activity bands for the acetate-esterase only, the remaining bacteria exhibited species-specific esterase patterns also for the propionate and butyrate substrates. the mul ... | 1975 | 234507 |
| [cross microbial antigens of the human bronchopulmonary apparatus]. | the work was undertaken to assess the antigenic affinity of some neisseria perflava, klebsiella pneumoniae, staphylococcus aureus strains serving as active sensitinogen of the human broncho-pulmonary apparatus. with the aid of the complement fixation test, precipitation after ouchterolony, and immunoelectrophoresis there was established the presence of a series of similar antigenic determinants common for all the three microbes and for determinant responsible for the cross reactions of two micro ... | 1978 | 414802 |
| [present evaluation of hansenian treatment by association of chemotherapy and immunostimulation (author's transl)]. | i.--treatment with bcg and dds in lepromatous or borderline patients. ii.--value of bcg added to a prior and long-continued treatment with dds or rifamipicine. iii.--value of various immunostimulants given previously to a treatment with bcg and chemotherapy. iv.--value of lysate of neisseria perflava as an immunostimulant associated with dds in an initial treatment of lepromatous and borderline patients. v.--results of a seventeen months treatment of lepromatous and borderline patients with a ly ... | 1978 | 723581 |
| structure of the d-glucans produced by neisseria perflava. | a chemical and enzymic study of the cellular glucan of neisseria perflava and of the glucan produced from sucrose by a cell-free extract of n. perflava showed from optical rotation, 13c nuclear magnetic resonance, methylation analysis, and alpha- and beta-amylase hydrolysis studies that the glucans had glycogen-like structures. these structures were composed of chains of 1-4-alpha-d-glucopyranosyl units with branch points of 4-o- and 6-o-disubstituted d-glucopyranose units. while the backbone st ... | 1978 | 743649 |
| [localization of antigens in common (cross-reacting) with neisseria perflava and klebsiella pneumoniae in the tissues of the human bronchopulmonary tract]. | an attempt was made of detecting antigenic similarity beyween the fraction of microsomes of the tissues of human broncho-pulmonary apparatus and the cells of microbes of human respiratory tract. cross reactions of antimocrosomal sera were studied in the complement fixation test with neisseria perflava and klebsiella pneumoniae. fixation of antibacterial antibodies and antibodies against the microsomal fraction of the lung tissues was studied on the sections of the lung tissues ahd human bronchi. ... | 1976 | 776254 |
| [localization in cells of neisseria perflava and klebsiella pneumoniae of antigens in common (cross-reacting) with tissues of the human bronchopulmonary apparatus]. | a study was made of localization in the cells of neisseria perflava and klebsiella pneumoniae of antigens common with the tissues of the human broncho-pulmonary apparatus. a study was made of cross reactions of some structures of neisseria perflava and klebsiella pneumoniae cells (capsule, walls, cytoplasmic structure fraction, hyaloplasm) in the complement fixation test with antilung sera. antigens cross reacting with the antilung sera were localized not only in the surface structures (walls) o ... | 1976 | 782606 |
| intrageneric transformation of neisseria gonorrhoeae and neisseria perflava to streptomycin resistance and nutritional independence. | auxotrophic mutants of neisseria gonorrhoeae and neisseria perflava were transformed to prototrophy using homologous and heterologous deoxyribonucleic acid (dna). within either species the efficiencies of transformation for nutritional markers were found to be very similar to the values obtained for transformation to streptomycin resistance. the number of transformants in the interspecific n. perflava (donor) - - leads to n. gonorrhoeae (recipient) cross was 100-fold lower than the number obtain ... | 1975 | 811645 |
| [features peculiar to diverse strains of neisseria perflava in the pathogenesis of infectious asthma]. | | 1976 | 1023417 |
| sucrose-mediated giant cell formation in the genus neisseria. | growth of neisseria perflava, neisseria cinerea, and neisseria sicca strain kirkland in media supplemented with sucrose (0.5 to 5.0% w/v) resulted in the formation of giant cells. response to sucrose was specific in that a variety of other carbohydrates did not mediate giant cell formation. giant cells appeared only under growth conditions and did not lyse upon transfer to medium lacking sucrose or upon resuspension in hypotonic media. reversion of giant to normal cells occurred when giant cells ... | 1976 | 1253000 |
| studies of the cellular and free lipopolysaccharides form neisseria canis and n. subflava. | cellular and free lipopolysaccharides (lps) obtained from neisseria canis and n. subflava were essentially identical. both cellular and free lipopolysaccharides contained o-polysaccharides of the following composition: l-rhamnose (46 mol), d-glucose (16 mol), l-glycero-d-manno-heptose (2 mol), ethanolamine (2 mol), 3-deoxy-d-manno-octulosonic acid (1 mol), and phosphate (1.5 mol). the core oligosaccharide, which was common to the cellular and free lps of both organisms, contained l-rhamnose (4 m ... | 1976 | 1260526 |
| neisseria perflava amylosucrase: characterization of its product polysaccharide and a study of its inhibition by sucrose derivatives. | neisseria perflava amylosucrase forms from sucrose a polysaccharide very similar to glycogen, except that a larger proportion of its d-glucosyl residues are in short branches. iodine staining of samples taken during polysaccharide formation indicate that the initial product is less branched than that formed at longer times. this glycogen-like polysaccharide has an estimated molecular mass range of 1 md to 20 md. sucrose derivatives modified at c-3 (3-deoxysucrose and alpha-d-allopyranosyl beta-d ... | 1988 | 2974759 |
| [tetracycline resistance and beta-lactamase production in pharyngeal commensal neisseria]. | commensal neisseria may constitute a potential source of resistance genes transferable to pathogenic neisseria. we tested 150 strains of commensal neisseria isolated from throat cultures for resistance to tetracycline and beta-lactamase production. seven strains were high level tetracycline resistant (mic greater than 16 mg/ml), and minocycline resistant. only one strain carries a 40 kilobases plasmid. seven strains were tetracycline resistant (mic = 8 or 16 mg/l) and minocycline susceptible. th ... | 1988 | 3054740 |
| tetracycline resistance and tetm in oral anaerobic bacteria and neisseria perflava-n. sicca. | tetracycline-resistant organisms isolated from six patients with periodontal disease included bacteroides spp., eubacterium spp., fusobacterium nucleatum, neisseria perflava-n. sicca, peptostreptococcus anaerobius, veillonella parvula, and facultative streptococci. all but the bacteroides spp. and eubacterium spp. hybridized with the tetm determinant. an additional 417 bacterial strains were screened, and 4% of both the oral streptococci and the fusobacterium spp. hybridized with the tetm probe. | 1988 | 3190205 |
| growth-enhancing effect of branhamella catarrhalis culture filtrates on the l-forms of haemophilus influenzae. | haemophilus influenzae is a common respiratory pathogen and recurrent infection due to h. influenzae is a phenomenon often present in patients with chronic respiratory tract infections. the effects of neisseria perflava and b. catarrhalis culture filtrates on the growth and reversion of h. influenzae l-forms were determined using the l-forms of h. influenzae induced and subcultured in a medium containing 10% sucrose and these culture filtrates. when each culture filtrate of two strains of n. per ... | 1986 | 3490015 |
| growth-enhancing effects of culture filtrates of sputum isolates on the l-forms of haemophilus influenzae. | the growth-enhancing effects of culture filtrates of respiratory pathogenic bacteria, including haemophilus influenzae, as well as normal floral bacteria other than neisseria perflava and branhamella catarrhalis on l-forms of h. influenzae were examined in vitro, using five species of major respiratory pathogenic bacteria and seven species of normal floral bacteria commonly isolated from the sputum of patients with chronic respiratory tract infections. the growth-enhancing factor(s) was present ... | 1986 | 3490016 |
| studies on the chemical constitution of cell-wall lipopolysaccharides from neisseria perflava. | | 1968 | 4301212 |
| the wall peptidoglycans of neisseria perflava, moraxella glucidolytica, pseudomonas alcaligenes and proteus vulgaris strain p18. | | 1973 | 4359387 |
| host range and properties of the pseudomonas aeruginosa r factor r1822. | r1822, a plasmid specifying multiple drug resistances, has been transferred to a variety of species representative of related and unrelated genera. the host range of the plasmid includes enterobacteriaceae, soil saprophytes, neisseria perflava, and photosynthetic bacteria. with the acquisition of drug resistance(s), these strains became sensitive to a small, ribonuclease-sensitive bacteriophage, designated prr1, isolated by enrichment from sewage. | 1973 | 4632321 |
| [injection abscess due to neisseria perflava]. | | 1973 | 4789547 |
| [a commensal neisseria (neisseria perflava) responsible for a case of meningitis]. | | 1970 | 5496186 |
| postcardiotomy endocarditis due to neisseria perflava on a prosthetic aortic valve. | | 1968 | 5713920 |
| bacterial endocarditis due to neisseria perflava in a patient hypersensitive to penicillin. | | 1967 | 6056614 |
| is there a specific stimulus of infectious-allergic bronchial asthma? | 1. pigmented neisseria species (neisseria perflava, flava, subflava, sicca) are constant inhabitants of patients with infectious asthma. 2. of all the diverse bronchial microflora of patients with infectious-allergic bronchial asthma, the pigmented neisseria species (neisseria perflava, flava, subflava, sicca), staphylococci (staphylococcus aureus, epidermidis), klebsiella (klebsiella pneumoniae) are active sensitizers of the human broncho-pulmonary tract. 3. neisseria strains, possessing simila ... | 1980 | 6157322 |
| survey, purification, and properties of sugar phosphate phosphohydrolase among microorganisms. | sugar phosphate phosphohydrolase was purified approximately 500- to 600-fold to apparent homogeneity from escherichia coli b, escherichia coli c, escherichia coli var. communior, escherichia acidilactici, enterobacter aerogenes, neisseria meningitidis, and saccharomyces cereviseae. the molecular weights of the enzyme as estimated by gel filtration ranged from 97 x 10(3) to 101 x 10(3). the enzyme was composed of two subunits with the same molecular weight which ranged from 50 x 10(3) to 52 x 10( ... | 1983 | 6322944 |
| the significance of nongonococcal, nonmeningococcal neisseria isolates from blood cultures. | nongonococcal, nonmeningococcal neisseriae are part of the normal respiratory flora and infrequently cause disease. these organisms include neisseria lactamica, neisseria mucosa, neisseria sicca, neisseria flavescens, neisseria subflava , neisseria perflava , neisseria flava , and branhamella catarrhalis (previously classified as neisseria catarrhalis). blood cultures positive for these bacteria have been associated with serious infections, including endocarditis, septicemia, and meningitis. in ... | 1984 | 6374834 |
| conjugation of plasmids of neisseria gonorrhoeae to other neisseria species: potential reservoirs for the beta-lactamase plasmid. | the discovery that penicillinase production in neisseria gonorrhoeae was plasmid mediated and the spread of the beta-lactamase encoding plasmids in gonococcal isolates since 1976, raise the possibility that a nonpathogenic indigenous bacterium could serve as a reservoir for these plasmids. we initiated studies to define the ability of commensal neisseria species and branhamella catarrhalis strains, as well as strains of the pathogen neisseria meningitidis, to serve as recipients in conjugation w ... | 1984 | 6434640 |
| diagnostic value of interactions between members of the family neisseriaceae and lectins. | the lectin slide agglutination test for neisseria gonorrhoeae has been modified and improved. results show that wheat germ agglutinin and soybean lectin agglutinate 100% (193 of 193 tested) of clinical isolates of n. gonorrhoeae. lectin-reactive meningococci can be readily identified by the hydrolysis of gamma-glutamyl-beta-naphthylamide. branhamella catarrhalis, neisseria lactamica, neisseria sicca, neisseria subflava, neisseria perflava, and meningococcal serogroups a, b, c, x, y, and z do not ... | 1984 | 6546936 |
| spontaneous bacterial peritonitis caused by a viridans streptococcus or neisseria perflava. | eight patients had nine episodes of presumed spontaneous bacterial peritonitis (sbp) caused by commensal bacteria that usually inhabit the oropharynx, including neisseria perflava and the viridans streptococci streptococcus milleri, streptococcus mitis, and streptococcus sanguis. nonpurulent ascites (ascitic fluid wbc count, less than 1,000/cu mm) was present in four episodes, possibly caused by either bacterial colonization or early peritonitis; purulent ascites was present in five episodes. no ... | 1983 | 6645030 |
| [properties of liposomal allergens of neisseria perflava]. | experiments on guinea-pigs were made to study the anaphylactogenic properties of neisserial allergens incorporated into phospholipid vesicles (liposomes). the anaphylactogenic activity of the liposomal allergens was found to be reduced as shown by the general anaphylactic reaction (anaphylactic shock) seen in the guinea-pigs sensitized with neisserial allergens. the effect under consideration was coupled with intense allergen accumulation by lung tissues of the sensitized guinea-pigs. it is assu ... | 1982 | 7171830 |
| viability of six species of normal oropharyngeal bacteria after exposure to cigarette smoke in vitro. | bacteria in culture medium at 37 degrees c were subjected to eight puffs of smoke from one cigarette, and viable cell counts were done at intervals ranging from 0 min to 3 h after exposure to smoke. the cigarette contained 23.0 mg of tar and 1.4 mg of nicotine. each 25.0 ml puff of smoke from a mechanical smoking apparatus was passed over a 1.0 ml suspension of bacteria dispersed over a 25 cm2 surface in a sterile flask. filtered air was in contact with the suspension between puffs, and during t ... | 1981 | 7339446 |
| [specificity of the action of anti-cholinoceptor antibodies]. | the effect of different anti-cholinoceptive (ach) antibodies (5 types) on the contractile effect of intestinal smooth muscles under the action of acetylcholine (a) and histamine (h) was examined in experiments on the isolated small bowel sections. ach-antibodies were demonstrated to have virtually no influence on the effect of the tested dosage of a and h on the intestinal smooth muscles of intact guinea-pigs. animal sensitization with egg albumin, timophy (phleum sp.) pollen allergen and neisse ... | 1995 | 7667041 |
| sequence of the penicillin-binding protein 2-encoding gene (pena) of neisseria perflava/sicca. | the nucleotide sequence of the transpeptidase domain (tp) of the penicillin (pn)-binding protein 2-encoding gene (pena) from two pn-sensitive (pns) and two pn-resistant (pnr) strains of neisseria perflava/sicca, has been determined. the sequences from pns strains, although displaying high homology with those pns strains from other neisseria species, also showed several interesting modifications suggesting that these isolates might represent intermediates in the mutational development of pnr in n ... | 1994 | 8063111 |
| hmbr outer membrane receptors of pathogenic neisseria spp.: iron-regulated, hemoglobin-binding proteins with a high level of primary structure conservation. | we have recently cloned and characterized the hemoglobin receptor gene from neisseria meningitidis serogroup c. n. meningitidis cells expressing hmbr protein were able to bind biotinylated hemoglobin, and the binding was specifically inhibited by unlabeled hemoglobin and not heme. the hmbr-mediated hemoglobin binding activity of n. meningitidis cells was shown to be iron regulated. the presence of hemoglobin but not heme in the growth medium stimulated hmbr-mediated hemoglobin binding activity. ... | 1996 | 8755899 |
| erythromycin-resistant neisseria gonorrhoeae and oral commensal neisseria spp. carry known rrna methylase genes. | two neisseria gonorrhoeae isolates from seattle and two isolates from uruguay were resistant to erythromycin (mic, 4 to 16 microg/ml) and had reduced susceptibility to azithromycin (mic, 1 to 4 microg/ml) due to the presence of the self-mobile rrna methylase gene(s) ermf or ermb and ermf. the two seattle isolates and one isolate from uruguay were multiresistant, carrying either the 25.2-mda tetm-containing plasmid (seattle) or a beta-lactamase plasmid (uruguay). sixteen commensal neisseria isola ... | 1999 | 10348754 |
| identification of the conjugative mef gene in clinical acinetobacter junii and neisseria gonorrhoeae isolates. | the mef gene, originally described for gram-positive organisms and coding for an efflux pump, has been identified in clinical isolates of acinetobacter junii and neisseria gonorrhoeae. these strains could transfer the mef gene at frequencies ranging from 10(-6) to 10(-9) into one or more of the following recipients: gram-negative moraxella catarrhalis, neisseria perflava/sicca and neisseria mucosa and gram-positive enterococcus faecalis. three streptococcus pneumoniae strains could transfer the ... | 2000 | 10952602 |
| mosaic-like structure of penicillin-binding protein 2 gene (pena) in clinical isolates of neisseria gonorrhoeae with reduced susceptibility to cefixime. | neisseria gonorrhoeae strains with reduced susceptibility to cefixime (mics, 0.25 to 0.5 micro g/ml) were isolated from male urethritis patients in tokyo, japan, in 2000 and 2001. the resistance to cephems including cefixime and penicillin was transferred to a susceptible recipient, n. gonorrhoeae atcc 19424, by transformation of the penicillin-binding protein 2 gene (pena) that had been amplified by pcr from a strain with reduced susceptibility to cefixime (mic, 0.5 micro g/ml). the sequences o ... | 2002 | 12435671 |
| serotype distribution, antibiotic susceptibility, and genetic relatedness of neisseria meningitidis strains recently isolated in italy. | the availability of new polysaccharide-protein conjugate vaccines against neisseria meningitidis serogroup c prompted european national health authorities to carefully monitor isolate characteristics. in italy, during 1999-2001, the average incidence was 0.4 cases per 100,000 inhabitants. serogroup b was predominant and accounted for 75% of the isolates, followed by serogroup c with 24%. serogroup c was isolated almost twice as frequently in cases of septicemia than in cases of meningitis, and t ... | 2003 | 12567299 |
| influence of osmotic pressure on the polyamine requirement of neisseria perflava and pasteurella tularensis for growth in defined media. | | 1955 | 13272723 |
| the oxidation of polyamines by neisseria perflava. | | 1958 | 13539000 |
| enzymatic synthesis of the maltose analogues, glucosyl glucosamine, glucosyl n-acetyl-glucosamine and glucosyl 2-deoxyglucose by an extract of neisseria perflava. | | 1961 | 13749893 |
| emergence and spread of neisseria gonorrhoeae clinical isolates harboring mosaic-like structure of penicillin-binding protein 2 in central japan. | of 150 clinical isolates of neisseria gonorrhoeae recovered in 2001, we examined 55 clinical isolates of n. gonorrhoeae for which cefixime mics were > or=0.125 microg/ml and randomly selected 15 isolates for which cefixime mics were < or =0.06 microg/ml for analysis of alterations in the penicillin-binding protein 2 (pbp 2) gene. we found insertion of an extra codon (asp-345a) in the transpeptidase domain of pbp 2, and this insertion occurred alone or in conjunction with other amino acid substit ... | 2005 | 15616287 |
| antibiotic produced by fusarium equiseti nrrl 5537. | fusarium equiseti nrrl 5537 grown on an autoclaved white corn grit medium for 3 to 4 weeks at room temperature produced a substance in excess of 5 g/kg of substrate that inhibited some gram-positive bacteria including mycobacteria. most bacillus subtilis, mycobacterium phlei, and staphylococcus aureus strains were inhibited when 1 mug of the antibiotic per ml was incorporated into the culture medium. except for neisseria perflava, gram-negative bacteria, yeasts, and molds were not inhibited by 1 ... | 1974 | 15825417 |
| analysis of mutations within multiple genes associated with resistance in a clinical isolate of neisseria gonorrhoeae with reduced ceftriaxone susceptibility that shows a multidrug-resistant phenotype. | a neisseria gonorrhoeae strain with a reduced susceptibility to ceftriaxone (minimum inhibitory concentration (mic) = 0.5 microg/ml) was isolated among 398 clinical isolates obtained from 2000-2001 in fukuoka city, japan. the n. gonorrhoeae strain was negative for penicillinase production but it showed multidrug resistance against penicillin (mic = 8 microg/ml), tetracycline (mic = 4 microg/ml), azithromycin (mic = 0.5 microg/ml) and ciprofloxacin (mic = 16 microg/ml). the molecular mechanisms o ... | 2006 | 16318912 |
| decreased affinity of mosaic-structure recombinant penicillin-binding protein 2 for oral cephalosporins in neisseria gonorrhoeae. | in neisseria gonorrhoeae, the mosaic structure of penicillin-binding protein 2 (pbp 2), composed of fragments of pbp 2 from neisseria cinerea and neisseria perflava, was significantly associated with decreased susceptibility to cephalosporins, particularly oral cephalosporins. the aim of this study was to determine the affinity of mosaic pbp 2 for cephalosporins in n. gonorrhoeae. | 2007 | 17540669 |
| rapid detection of the mosaic structure of the neisseria gonorrhoeae pena gene, which is associated with decreased susceptibilities to oral cephalosporins. | in neisseria gonorrhoeae, the mosaic structure of the pena gene (encoding penicillin-binding protein 2 [pbp 2]), which is composed of fragments of the pena genes from neisseria cinerea and neisseria perflava, has been significantly associated with decreased susceptibility to cephalosporins, particularly oral cephalosporins. the aim of this study was to develop a rapid assay for the detection of mosaic pbp 2 of n. gonorrhoeae by real-time pcr. this assay successfully detected the mosaic pena gene ... | 2008 | 18367575 |
| analysis of amino acid sequences of penicillin-binding protein 2 in clinical isolates of neisseria gonorrhoeae with reduced susceptibility to cefixime and ceftriaxone. | neisseria gonorrhoeae strains with reduced susceptibility to cefixime and ceftriaxone, with minimum inhibitory concentrations (mics) of cefixime of 0.125-0.25 microg/ml and ceftriaxone of 0.031-0.125 microg/ml, were isolated from male urethritis patients in tokyo, japan, in 2006. the amino acid sequences of pena, penicillin-binding protein 2, in these strains were of two types: pena mosaic and nonmosaic strains. in the pena mosaic strain, some regions in the transpeptidase-encoding domain in pen ... | 2008 | 18574654 |
| molecular typing of neisseria perflava clinical isolates. | multilocus sequence typing and pulsed-field gel electrophoresis were used to type 22 commensal isolates of neisseria perflava collected by swabbing from neutropenic patients. high genetic diversity was found among our n. perflava clinical isolates. | 2012 | 23278501 |
| 16s ribosomal dna sequence-based identification of bacteria in laboratory rodents: a practical approach in laboratory animal bacteriology diagnostics. | correct identification of bacteria is crucial for the management of rodent colonies. some bacteria are difficult to identify phenotypically outside reference laboratories. in this study, we evaluated the utility of 16s ribosomal dna (rdna) sequencing as a means of identifying a collection of 30 isolates of rodent origin which are conventionally difficult to identify. sequence analysis of the first approximate 720 to 880 bp of the 5'- end of 16s rdna identified 25 isolates (83.33%) with ≥ 99% sim ... | 2014 | 24876090 |
| mode of action of chloramphenicol. v. effect of chloramphenicol on polysaccharide synthesis by neisseria perflava. | | 1954 | 24543210 |