解剖学和形态学
麻醉学
听力与言语-语言病理学
行为科学
心脏和心血管系统
细胞和组织工程学
临床神经病学
危重症监护医学
牙科,口腔外科和医学
皮肤病学
急诊医学
内分泌学和新陈代谢
肠胃学和肝脏学
老人病学和老年医学
卫生保健科学和服务
血液学
免疫学
传染病
综合和补充性医学
医学伦理学
医学信息学
医学实验室技术
医学,全科和内科
医学,法律
医学,研究和试验
神经系统科学
护理
营养学和饮食学
产科医学和妇科医学
肿瘤学
眼科学
整形外科学
耳鼻喉科学
病理学
儿科学
周围血管疾病
药理学和药剂学
生理学
基本医疗保健
精神病学
公共、环境和职业卫生
放射学,核医学和医学成像
康复学
生殖生物学
呼吸系统
风湿病学
运动科学
外科学
毒理学
热带医学
泌尿学和肾脏学
病毒学
老年医学
健康政策和服务
心理学,临床
abstract::Enterococci, formerly confounded with faecal streptococci, are recognized since the beginning of the century as being faecal in origin and are generally searched for in waste waters and food products; their detection may in fact indicate the presence of enteropathogenic organisms. Although nearly ubiquitous, their pre...
journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:
更新日期:1997-08-01 00:00:00
abstract::We report some characteristics of a ruminal bacterium (strain NPOH1) that metabolizes 3-nitropropanol, the toxic principle of various milk vetchs that are distributed worldwide. The gram-positive bacterium was nonmotile and did not produce spores. Growth of strain NPOH1 occurred under anaerobic conditions and was supp...
journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:10.1139/m97-088
更新日期:1997-07-01 00:00:00
abstract::Soil bacteria that utilize inositol hexaphosphate (IHP) were isolated from a range of soils using defined selection media. An analysis of 200 randomly selected isolates indicated that less than 0.5% of the culturable population of soil bacteria were capable of using IHP as a sole source of C and P. From a further 238 ...
journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:10.1139/m97-073
更新日期:1997-06-01 00:00:00
abstract::A polygalacturonase was isolated from the culture medium of Sclerotinia borealis, a psychrophilic fungus that grows on lawn and wheat seedling under the snow in winter and induces the snow mold disease. Pectic acid was a better substrate of this enzyme than pectin when the activity was determined by measuring the redu...
journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:10.1139/m97-059
更新日期:1997-05-01 00:00:00
abstract::The presence of killer and proteolytic yeasts was studied among 944 isolates representing 105 species from tropical yeast communities. We found 13 killer toxin producing species, with Pichia kluyveri being the most frequent. Other killer yeast isolates were Candida apis, Candida bombicola, Candida fructus, Candida kru...
journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:10.1139/m97-046
更新日期:1997-04-01 00:00:00
abstract::A 3.1-kb region of the bacteriophage D3 genome which contains the immunity functions has recently been sequenced (GenBank accession No. L22692). Sequence analysis indicated the presence of a putative repressor gene (c1) whose protein product functions to maintain the bacteriophage genome as a stably integrated prophag...
journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:10.1139/m97-030
更新日期:1997-03-01 00:00:00
abstract::The anaerobic degradative pathway for metabolism of 2,4,6-trinitrotoluene (TNT) by a consortium of Desulfovibrio spp. isolated from a creek sediment was studied. This consortium has the metabolic capability to degrade TNT to fatty acids. The growth of the consortium and the metabolism of TNT were greatly enhanced in t...
journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:10.1139/m96-155
更新日期:1996-12-01 00:00:00
abstract::The gene for a type IIo IgG-binding protein has previously been cloned and sequenced. The approximately 60,000 M(r) recombinant gene product binds all four human IgG subclasses and fibrinogen. Treatment of this recombinant protein with CNBr results in generation of a series of fragments. One fragment, an approximately...
journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:10.1139/m96-149
更新日期:1996-11-01 00:00:00
abstract::Clinical isolates of Staphylococcus aureus were found to exhibit strain-specific heterogeneity to the growth-enhancing effects of human urokinase (UK), a proteinase with plasminogen activator activity. Nine out of fourteen (64%) methicillin-sensitive strains of S. aureus were responsive to UK in "in vitro" cultures. I...
journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:10.1139/m96-131
更新日期:1996-10-01 00:00:00
abstract::The addition of various concentrations of monensin (1,5, and 10 micrograms/mL) to the culture medium inhibits the fungal growth and perturbs exopolysaccharides secretion, provoking a decrease of production in Botrytis cinerea and an increase in Sclerotium rolfsii. The ionophore induces also modifications in both polym...
journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:10.1139/m96-124
更新日期:1996-09-01 00:00:00
abstract::Seven streptomycete strains were tested for biotransformation of salicylate. The products were identified by nuclear magnetic resonance spectroscopy and three types of conversion were found. Streptomyces cinnamonensis and Streptomyces spectabilis formed gentisate and salicylamide concurrently. Streptomyces rimosus tra...
journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:10.1139/m96-111
更新日期:1996-08-01 00:00:00
abstract::The production of cold shock proteins (csps) and cold acclimation proteins (caps) was characterized in the psychrotrophic bacterium Pseudomonas putida Q5 and its transconjugant P. putida Q5T which contains the toluene-degradative TOL (pWWO) plasmid, using two-dimensional gel electrophoresis and computing scanning lase...
journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:10.1139/m96-100
更新日期:1996-08-01 00:00:00
abstract::Chemical formation of a glucose-cyanide complex was necessary for metabolic degradation of cyanide at concentrations up to 50.0 mg/L by a strain of Escherichia coli isolated from gold extraction circuit liquids. Ammonia accumulating during the culture log phase as the sole nitrogen by-product was further utilized for ...
journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:10.1139/m96-070
更新日期:1996-05-01 00:00:00
abstract::The attachment of Bradyrhizobium sp. (Lupinus) strain MSDJ718 to excised roots of white lupin was examined. Maximal attachment occurred at early to middle log phases of bacterial growth. This binding was pH dependent, with an optimal value reached at 6.6. Irrespective of the culture age, the attachment was strongly af...
journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:10.1139/m96-035
更新日期:1996-03-01 00:00:00
abstract::Actinomycetes DNAs were digested with restriction enzymes to study the presence of methylated bases. Analysis showed that the enterobacterial Dam and Dcm systems are absent. Methylation at the internal cytosine in CCGG sequences, typical of eukaryotes, was also absent. We also tested 18 restriction endonucleases recog...
journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:10.1139/m96-031
更新日期:1996-02-01 00:00:00
abstract::Candida albicans is a dimorphic yeast capable of producing alternate morphological forms (yeast or mycelium) in response to environmental changes. The intracellular level of glutathione, which helps to maintain the redox potential of the cell, is decreased significantly during the thermal induction of yeast-to-myceliu...
journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:10.1139/m96-011
更新日期:1996-01-01 00:00:00
abstract::The effects of water activity (aw, 0.994-0.90 identical to 0.4-14.0 (-)MPa water potential), temperature (4-45 degrees C), and pH (3.6, 5.5, 7.0), and their interactions on growth of isolates of Fusarium moniliforme and Fusarium proliferatum were determined in vitro on a maize extract agar medium. Growth of two isolat...
journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:10.1139/m95-149
更新日期:1995-12-01 00:00:00
abstract::Bacterial strains and consortia of bacteria have been isolated for their ability to degrade, under anaerobic conditions, homocyclic monoaromatic compounds, such as phenolic compounds, methylbenzenes, and aminobenzenes. As opposed to aerobic conditions where these compounds are degraded via dihydroxyl intermediates int...
journal_title:Canadian journal of microbiology
pub_type: 杂志文章,评审
doi:10.1139/m95-118
更新日期:1995-10-01 00:00:00
abstract::Fetal bovine serum (FBS) is a necessary constituent of the culture media employed to foster the growth of Trypanosoma cruzi epimastigote forms. In different laboratories, the serum is used at final concentrations of 5 or 10%. We have normally supplemented the complex medium with 10% FBS. Under this condition we have d...
journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:10.1139/m95-132
更新日期:1995-10-01 00:00:00
abstract::Fourteen Lactococcus lactis strains showing inhibitory activity against Listeria innocua SICC 4202 were isolated from different French raw milks and raw milk cheeses and screened for bacteriocin production by the triple layer method under conditions that eliminate the effects of lactic acid and hydrogen peroxide. Thre...
journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:10.1139/m95-114
更新日期:1995-09-01 00:00:00
abstract::Health effects associated with poor indoor air quality have created a need for accurate, reproducible methods of monitoring the microbiological content of indoor air. Improved methods of detection may allow researchers to clarify the effect of individual species present in the indoor environment on human health. This ...
journal_title:Canadian journal of microbiology
pub_type: 杂志文章,评审
doi:10.1139/m95-091
更新日期:1995-08-01 00:00:00
abstract::Listeria monocytogenes and Listeria innocua differ markedly in virulence but are indistinguishable by classical taxonomic criteria. Both species are actively motile and produce abundant flagellin at 22 degrees C. We have found, however, noticeable differences between L. monocytogenes and L. innocua in motility and fla...
journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:10.1139/m95-076
更新日期:1995-07-01 00:00:00
abstract::Environmental scanning electron microscopic observations of Postia placenta grown on a defined medium and on red spruce wood allowed for the examination of the hydrated sheath of P. placenta. In the wood environment, mature hyphae that were not adhering to the substrate were observed to have a mycofibrillar morphology...
journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:10.1139/m95-058
更新日期:1995-04-01 00:00:00
abstract::The poly(3-hydroxybutyrate) (PHB) depolymerase structural gene of Comamonas sp. (phaZCsp) was cloned in Escherichia coli and identified by halo formation on PHB-containing solid medium. The nucleotide sequence of a 1719 base pair MboI fragment was determined and contained one large open reading frame (ORF1, 1542 base ...
journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:10.1139/m95-183
更新日期:1995-01-01 00:00:00
abstract::Asexual sporulation in the fungus Aspergillus nidulans is controlled, in part, by a central regulatory pathway composed of the brlA, abaA, and wetA genes. The coding region of each of these genes was fused, in frame, to the threonine-inducible alcohol dehydrogenase promotor then stably incorporated into the A. nidulan...
journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:10.1139/m94-164
更新日期:1994-12-01 00:00:00
abstract::To determine the seroprevalence of Norwalk virus and whether Norwalk virus contributed to an observed increase in illness in tap water drinkers participating in a prospective epidemiological study, sera collected during the study were examined for changes in Norwalk virus antibody titer, using a specific enzyme immuno...
journal_title:Canadian journal of microbiology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1139/m94-128
更新日期:1994-10-01 00:00:00
abstract::Using a gene fusion approach, hybrid proteins were created by linking alkaline phosphatase (PhoA) or a cellulase reporter (delta CenA) to four large N-terminal portions of the Caulobacter crescentus surface (S)-layer protein (RsaA; 1026 amino acids). Three of the sites (amino acids 189, 220, 315) were selected on the ...
journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:10.1139/m94-122
更新日期:1994-09-01 00:00:00
abstract::A Tn551 insertional pleiotropic mutant defective in the production of several exoproteins was isolated from Staphylococcus aureus 196E and characterized. The pleiotropism of the mutant was due to a single insertion of the transposon as evidenced by Southern blot hybridization and by the transfer of its phenotype by tr...
journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:10.1139/m94-107
更新日期:1994-08-01 00:00:00
abstract::Isoquinoline is a nitrogen heterocyclic compound that is associated with coal- and oil-derived wastes. Four strains of bacteria able to degrade isoquinoline in pure culture were isolated from sites known to be contaminated with oil. Isoquinoline was used as the sole source of carbon and nitrogen by these isolates. Iso...
journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:10.1139/m94-089
更新日期:1994-07-01 00:00:00
abstract::Three types of bacteria are associated with leprosy: Mycobacterium leprae, leprosy-derived corynebacteria (LDC), and armadillo-derived mycobacteria (ADM). The immunological relationships between these three types of bacteria and Mycobacterium bovis BCG, used as a reference, were determined by cross-immunoelectrophores...
journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:10.1139/m94-083
更新日期:1994-06-01 00:00:00
abstract::The diversity of 16 strains of chickpea-infective rhizobia from various geographical origins was analysed using genotypic and phenotypic approaches. Multilocus enzyme electrophoresis was performed, and restriction fragment length polymorphisms of the amplified 16S + IGS (intergenic spacer) rRNA gene, assimilation of 1...
journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:10.1139/m94-057
更新日期:1994-05-01 00:00:00
abstract::The effect of a chromated-copper-arsenate wood preservative on the degradation of pentachlorophenol by Flavobacterium sp. strain ATCC 53874 was examined in liquid culture. Both a commercially available and a laboratory-prepared formulation were tested. Each increased the lag time required for measurable pentachlorophe...
journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:10.1139/m94-063
更新日期:1994-05-01 00:00:00
abstract::Cell surface hydrophobicity influences adhesion and virulence of the opportunistic fungal pathogen Candida albicans. Previous studies have shown that cell surface hydrophobicity is due to specific proteins that are exposed on hydrophobic cells but are masked by long fibrils on hydrophilic cells. This observation sugge...
journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:10.1139/m94-043
更新日期:1994-04-01 00:00:00
abstract::Group B streptococcus type III is a major cause of neonatal death. The terminal sialic acid moiety of the group B streptococcus type specific capsule has been shown to be an important virulence factor. We demonstrate here that bacteria grown in human serum have increased cell surface sialic acid content compared with ...
journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:10.1139/m94-016
更新日期:1994-02-01 00:00:00
abstract::The physiological characteristics and fatty acid composition of 40 strains of Yarrowia lipolytica isolated from irradiated poultry meat, commercial chilled foods, the superficial water of lagoons of an Italian river delta, and commercial light butter were compared. Discriminant analysis of the results permitted the 40...
journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:10.1139/m94-008
更新日期:1994-01-01 00:00:00
abstract::Three strains, Rhodotorula rubra, Rhodotorula glutinis, and Candida zeylanoides, isolated from fish, were tested for the expression of putative tissue colonization factors. All strains were able to bind collagen type I, fibronectin, and laminin to various degrees after growing on various solid and broth media, while t...
journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:10.1139/m93-171
更新日期:1993-12-01 00:00:00
abstract::Wild-type glucose uptake and glucose chemotaxis activities were restored in glucose transport defective Pseudomonas aeruginosa strains PFB360 and PFB362 after introduction of plasmid pPZ129, containing a 1.1-kilobase DNA fragment that is essential for the expression of the P. aeruginosa periplasmic glucose binding pro...
journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:10.1139/m93-163
更新日期:1993-11-01 00:00:00
abstract::The antimicrobial activity of Ag, Cu, and layered Ag-Cu surface films, sputter-coated onto several types of catheter material, against clinical isolates of Staphylococcus epidermidis and Staphylococcus aureus was evaluated. When 20 microL of a suspension of S. epidermidis or S. aureus (2.68 x 10(6) colony-forming unit...
journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:10.1139/m93-134
更新日期:1993-09-01 00:00:00
abstract::An anaerobic consortium that carboxylated and dehydroxylated phenol to benzoate, and 2-cresol to 3-methylbenzoic acid, under methanogenic conditions was studied. Phenol induced this transformation activity. Addition of 4-hydroxypyridine or an increase in the concentration of proteose peptone to 0.5% (w/v) delayed the ...
journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:10.1139/m93-093
更新日期:1993-07-01 00:00:00
abstract::HI plasmids are distinguished by their thermosensitive mode of conjugation (transfer efficiency is optimal at 22-30 degrees C) and their capacity to encode multiple antibiotic resistance. These traits have implicated HI plasmids as potential vectors in the dissemination of antibiotic resistance among pathogenic and in...
journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:10.1139/m93-084
更新日期:1993-06-01 00:00:00