Evaluation of the in vitro and in vivo dimorphism of Sporothrix schenckii, Blastomyces dermatitidis, and Paracoccidioides brasiliensis isolates after preservation in mineral oil.

abstract：:A microcinematographic analysis of the behaviour and movements of cells and cell masses in mated cultures (NC4 X VI2) of Dictyostelium discoideum indicates that a chemotactic process directs cell aggregation during macrocyst development. Zygote giant cells form before aggregation begins and act as the aggregation cent...

journal_title：Canadian journal of microbiology

authors： O'Day DH

更新日期：1979-12-01 00:00:00

abstract：:A series of synthetic promoters, based upon the Escherichia coli sigma 70 consensus promoter sequence, was constructed upstream of the lacZ reporter gene in the modified broad-host-range vector pQF52. The role of the intervening spacer region in gene expression in Pseudomonas aeruginosa and E. coli was studied by inse...

journal_title：Canadian journal of microbiology

authors： McLean BW,Wiseman SL,Kropinski AM

更新日期：1997-10-01 00:00:00

abstract：:Three isolates, a Pseudomonas sp., Bacillus sp., and Arthrobacter sp., which had been isolated from a meadow soil at Devon Island, Canada, were subjected to freezing and thawing at low rates under various conditions. When cells were frozen in sand or soil, survival was dependent on moisture level, storage time, and th...

journal_title：Canadian journal of microbiology

authors： Nelson LM,Parkinson D

更新日期：1978-12-01 00:00:00

abstract：:The goal of this study was to evaluate the antibiofilm and antimicrobial activities of Bacoside A, a formulation of phytochemicals from Bacopa monnieri, against Staphylococcus aureus and Pseudomonas aeruginosa, which are known to form biofilms as one of their virulence traits. The antimicrobial effects of Bacoside A w...

journal_title：Canadian journal of microbiology

authors： Parai D,Islam E,Mitra J,Mukherjee SK

更新日期：2017-02-01 00:00:00

abstract：:The aim of this study was to assess the influence of sodium content on the microbiota on the surface of ready-to-eat (RTE) meat products purchased from the retail market in Canada. Products, including sliced and sausage-type deli meats, were analysed with culture-dependent and culture-independent methods. Bacteria wer...

journal_title：Canadian journal of microbiology

authors： Miller P,Liu X,McMullen LM

更新日期：2015-02-01 00:00:00

abstract：:Heat activation (70 degrees C for 20 min) resulted in alteration in structural proteins and enzymes found in Bacillus cereus spore coats. The three notable changes were increased glycosylation of coat proteins, alteration in polypeptide pattern on sodium dodecyl sulfate - polyacrylamide gels, and an increase in free S...

journal_title：Canadian journal of microbiology

authors： Srivastava OP,Fitz-James PC

更新日期：1981-04-01 00:00:00

abstract：:The presence of other soil microorganisms might influence the ability of rhizobacterial inoculants to promote plant growth either by reducing contact between the inoculant and the plant root or by interfering with the mechanism(s) involved in rhizobacterially mediated growth promotion. We conducted the following exper...

journal_title：Canadian journal of microbiology

authors： Bent E,Tuzun S,Chanway CP,Enebak S

更新日期：2001-09-01 00:00:00

abstract：:Sera from mice which have been vaccinated with BCG and challenged with old tuberculin contain gamma interferon. These same sera also express antibacterial activity. Using Staphylococcus aureus we demonstrated that its growth was inhibited at dilutions of sera as high as 1:320. A 4% concentration of sera reduced the gr...

journal_title：Canadian journal of microbiology

authors： Moulton RG,Gerner GD

更新日期：1986-05-01 00:00:00

abstract：:Candida albicans biofilm formation is considered an important matter because it can lead to strong resistance to conventional antifungal agents. Hyphae formed by C. albicans can also act as an important virulence factor related to its biofilm. The objective of this study was to determine the effect of zerumbone, a mon...

journal_title：Canadian journal of microbiology

authors： Shin DS,Eom YB

更新日期：2019-10-01 00:00:00

abstract：:Streptomyces echinatus A8331 cultured on a maltose minimal salts medium normally produces a single antibiotic, echinomycin (quinomycin A), containing two quinoxaline-2-carbonyl chromophores. Echinomycin is powerfully active against experimental tumours and can be assayed by its activity against Gram-positive bacteria....

journal_title：Canadian journal of microbiology

authors： Gauvreau D,Waring MJ

更新日期：1984-04-01 00:00:00

abstract：:A test is described for selective inhibition of Mycobacterium tuberculosis and M. bovis isolates in fluid medium. The method employs rho-nitro-alpha-acetyl-amino-beta-hydroxy-propiophenone (NAP) as an inhibitory agent for differentiation of mammalian tuberculosis strains from other Mycobacteria. ...

journal_title：Canadian journal of microbiology

authors： Laszlo A,Eidus L

更新日期：1978-06-01 00:00:00

abstract：:DNA-degrading activity from anaerobic samples of bovine ruminal fluid, primary anaerobic digestor wastewater, freshwater sediments, and marine sediments was observed in the presence of 5 mM EDTA. Nuclease activity experiments involved exposing salmon chromosomal DNA to the environmental samples in 50 mM pH 7.2 buffer,...

journal_title：Canadian journal of microbiology

authors： Ruiz TR,Andrews S,Smith GB

更新日期：2000-08-01 00:00:00

abstract：:An obligate methyltroph Methylomonas methylovora oxidized methylamine, formaldehyde, and formate. Enzymes oxidizing these substrates were detected in a cell-free system. Phenazine methosulfate-linked methylamine dehydrogenase was purified 21-fold. The enzyme had optimum activity at pH 7.5 and was stable at 60 degrees ...

journal_title：Canadian journal of microbiology

authors： Mehta RJ

更新日期：1977-04-01 00:00:00

abstract：:An alginate lyase gene of a newly isolated Pseudomonas sp. strain KS-408 was cloned by using PCR with the specific primers designed from homologous nucleotide sequences. A partial protein sequence of KS-408 alginate lyase was homology-modeled on the basis of the crystal structure of A1-III alginate lyase from Sphingom...

journal_title：Canadian journal of microbiology

authors： Kam N,Park YJ,Lee EY,Kim HS

更新日期：2011-12-01 00:00:00

abstract：:The aim of this study was to determine possible differences in the faecal microbiota of dairy cows infected with Mycobacterium avium subsp. paratuberculosis (Johne's disease) in comparison with noninfected cows from the same herds. Faecal samples from cows in 4 herds were tested for M. avium subsp. paratuberculosis by...

journal_title：Canadian journal of microbiology

authors： Kaevska M,Videnska P,Sedlar K,Bartejsova I,Kralova A,Slana I

更新日期：2016-06-01 00:00:00

abstract：:The B subunit of Escherichia coli heat-labile enterotoxin (LTB), a nontoxic molecule with potent biological properties, is a powerful mucosal and parenteral adjuvant that induces a strong immune response against co-administered or coupled antigens. In this paper, the effect of LTB on the humoral immune response to rec...

journal_title：Canadian journal of microbiology

authors： da Silva Ramos Rocha A,Conceição FR,Grassmann AA,Lagranha VL,Dellagostin OA

更新日期：2008-08-01 00:00:00

abstract：:During exponential growth, strain AW405 of Escherichia coli K-12 did not regulate the fatty acid composition of its lipids in response either to temperature or to the addition of NaCl, KCl, or MgCl2 to the medium. Growth was severely restricted at temperatures below 21 degrees C. Differential scanning calorimetry (DSC...

journal_title：Canadian journal of microbiology

authors： McGarrity JT,Armstrong JB

更新日期：1981-08-01 00:00:00

abstract：:Approximately 20% of Canada's oil supply now comes from the extraction of bitumen from the oil sands deposits in northeastern Alberta. The oil sands are strip-mined, and the bitumen is typically separated from sand and clays by an alkaline hot water extraction process. The rapidly expanding oil sands industry has mill...

journal_title：Canadian journal of microbiology

authors： Fedorak PM,Coy DL,Salloum MJ,Dudas MJ

更新日期：2002-01-01 00:00:00

abstract：:Ten strains of Caldariomyces fumago and related fungi were found to produce extracellular chloroperoxidase when grown on a glucose - malt extract medium. High enzyme levels and pigment production were observed for C. fumago ATCC 16373 and C. fumago CMI 89362. Removal of malt extract from the medium and the replacement...

journal_title：Canadian journal of microbiology

authors： Pickard MA

更新日期：1981-12-01 00:00:00

abstract：:Rabbit antisera prepared to meningococcal serogroups Y and W135 strains were compared with horse antisera using the antiserum agar method (ASA) for the serogroup identification of Neisseria meningitidis. Thirty-seven group Y strains formed immunoprecipitates with the Y rabbit serum only, whereas the same Y strains for...

journal_title：Canadian journal of microbiology

authors： Ashton FE,Ryan A,Diena BB

更新日期：1980-05-01 00:00:00

abstract：:Leptospira interrogans serotype pomona was isolated from the kidneys of a normal striped skunk (Mephitis mephitis hudsonicus) collected near Kindersley, Saskatchewan. Although there were no gross lesions, small foci of chronic interstitial nephritis were observed microscopically. This is the first reported isolation o...

journal_title：Canadian journal of microbiology

authors： Carpio M,Wobeser G,Iversen J

更新日期：1977-12-01 00:00:00

abstract：:The expression of the toxA and regA genes in Pseudomonas aeruginosa is negatively regulated by iron at the transcriptional level. We have previously described ptxR, an exotoxin A regulatory gene which appears to enhance toxA expression through regA. In this study, we have tried to determine if ptxR expression correlat...

journal_title：Canadian journal of microbiology

authors： Colmer JA,Hamood AN

更新日期：1999-12-01 00:00:00

abstract：:Phialocephala fortinii is a dark septate fungal endophyte that colonizes roots of many host species. Its effect on plant growth varies from being pathogenic to beneficial. The basic biology of this species has received little research, and thus the main objectives of this study were to determine cytological features o...

journal_title：Canadian journal of microbiology

authors： Saito K,Kuga-Uetake Y,Saito M,Peterson RL

更新日期：2006-07-01 00:00:00

abstract：:Seventeen of 22 group A meningococcal strains were separated into four serotypes by a microbactericidal assay using group A antisera. In addition, 6 of 19 of these strains were killed by a group B antiserum and similar cidal patterns were obtained with a group C antiserum. There was little correlation between type and...

journal_title：Canadian journal of microbiology

authors： Quan AL,Sippel JE

更新日期：1979-08-01 00:00:00

abstract：:The microbial community plays an important role in soil nutrient cycles and energy transformations in alpine grassland. In this study, we investigated the composition of the soil microbial community collected from alpine cold swamp meadow (ASM), alpine cold meadow (AM), and alpine cold desert steppe (ADS) within the B...

journal_title：Canadian journal of microbiology

authors： Shao K,Gao G

更新日期：2018-03-01 00:00:00

abstract：:Microbial mats that develop in shallow brackish and hyposaline ponds in the rims of two French polynesian atolls (Rangiroa and Tetiaroa) were intensively investigated during the past three years. Comparative assessment of these mats (called kopara in polynesian language) showed remarkable similarities in their composi...

journal_title：Canadian journal of microbiology

authors： Che LM,Andréfouët S,Bothorel V,Guezennec M,Rougeaux H,Guezennec J,Deslandes E,Trichet J,Matheron R,Le Campion T,Payri C,Caumette P

更新日期：2001-11-01 00:00:00

abstract：:Unicellular green alga represents not only a convenient model for its biochemical and physiological studies but also a sensitive system to test the effects of various environmental factors. Algae cells of two strains, SA-3 strain (exsymbiotic from Paramecium bursaria) and Chlorella vulgaris c-27, were asynchronously c...

journal_title：Canadian journal of microbiology

authors： Gerashchenko BI,Gerashchenko II,Kosaka T,Hosoya H

更新日期：2002-02-01 00:00:00

abstract：:Strain-specific fluorescent antibodies were prepared for three isolates of Aereomonas hydrophila. These antisera were reacted with 255 other A. hydrophila isolates, and their immunofluorescence was measured quantitatively by photometric fluorescence microscopy. Only 27.5% of the isolates reacted with the prepared anti...

journal_title：Canadian journal of microbiology

authors： Fliermans CB,Hazen TC

更新日期：1980-02-01 00:00:00

abstract：:This study compared the recovery of Cryptosporidium oocysts and Giardia cysts ((oo)cysts) from raw waters using 4 different concentration-elution methods: flatbed membranes, FiltaMax foam, Envirochek HV capsules, and Hemoflow ultrafilters. The recovery efficiency of the combined immunomagnetic separation and staining ...

journal_title：Canadian journal of microbiology

authors： Ferguson C,Kaucner C,Krogh M,Deere D,Warnecke M

更新日期：2004-09-01 00:00:00

abstract：:The structures of lipopolysaccharides (LPSs) of lic1 and lic1/lic2 mutants from Haemophilus influenzae type b strain Eagan (RM153) were investigated using methylation analysis, electrospray ionization - mass spectrometry, and nuclear magnetic resonance spectroscopy on O-deacylated, O- and N-deacylated core oligosaccha...

journal_title：Canadian journal of microbiology

authors： Masoud H,Moxon ER,Richards JC

更新日期：2008-04-01 00:00:00