Growth and survival of uninjured and sublethally heat-injured Escherichia coli O157:H7 on beef extract medium as influenced by package atmosphere and storage temperature.

abstract：:High resolution two-dimensional PAGE was used to analyse protein variation among serotype 1 poliovirus isolates. Viruses isolated from patients with recent histories of vaccination with live attenuated poliovirus were compared with prototype serotype 1 poliovaccine. The nonvaccine Mahoney and Brunenders strains of ser...

journal_title：Canadian journal of microbiology

authors： Cash P

更新日期：1988-06-01 00:00:00

abstract：:To facilitate the recognition of plant viruses with similar characteristics a dendrogram of characterized viruses was constructed. The sequence of criteria included: type of nucleic acid; single or double stranded; presence or absence of lipid envelope; helical or nonhelical symmetry; and divided or single genome. Non...

journal_title：Canadian journal of microbiology

authors： Tremaine JH

更新日期：1977-09-01 00:00:00

abstract：:The new United States Drinking Water Regulations state that water systems must analyze for Escherichia coli or fecal coliforms on any routine or repeat sample that is positive for total coliforms. The proposed methods for the detection of E. coli are based on beta-glucuronidase activity, using the fluorogenic substrat...

journal_title：Canadian journal of microbiology

authors： Shadix LC,Rice EW

更新日期：1991-12-01 00:00:00

abstract：:A disseminated and fatal infection was established in C57BL mice, injected intraperitoneally with either Neisseria meningitidis B,2b or Haemophilus influenzae type b bacteria plus enhancement factors. The effects of mucin, hemoglobin, and iron dextran as enhancement of bacterial infectivity in mice were evaluated indi...

journal_title：Canadian journal of microbiology

authors： Brodeur BR,Tsang PS,Hamel J,Larose Y,Montplaisir S

更新日期：1986-01-01 00:00:00

abstract：:A proline dehydrogenase which catalyzes the nicotinamide adenine dinucleotide (NAD) dependent oxidation of proline and the NADH-dependent reduction of delta 1-pyrroline 5-carboxylic acid (PCA) was purified from extracts of Clostridium sporogenes. Following purification, only one protein band was found on analytical po...

journal_title：Canadian journal of microbiology

authors： Monticello DJ,Costilow RN

更新日期：1981-09-01 00:00:00

abstract：:The study of diaminopimelic acid (DAP) incorporation and turnover during growth recovery in chloramphenicol-treated (CMP-treated) Bacillus megaterium cells showed that two kinds of turnover occurred. A low acid-soluble turnover appeared as soon as growth resumed in bacteria labeled before the CMP treatment and at the ...

journal_title：Canadian journal of microbiology

authors： Fréhel C,de Chastellier C,Ryter A

更新日期：1980-03-01 00:00:00

abstract：:The correlation between the occurrence of indicator organisms and salmonellae in the same sample homogenate of various classes of dried foods was studied. In the first phase of the work involving 5837 samples, 1943 contained fecal coliforms and 100 contained Salmonella. Fecal coliforms were not detected in 53 of the S...

journal_title：Canadian journal of microbiology

authors： Silliker JH,Gabis DA

更新日期：1976-07-01 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：:Treponema denticola and Treponema vincentii were cultured in a medium supplemented with either 0.2 or 0.4% (w/v) alpha globulin in place of serum. The active factor(s) in alpha globulin was stable at pH 7.0 to autoclaving and was nondialyzable. Extraction of lipids from alpha globulin showed that both protein and lipi...

journal_title：Canadian journal of microbiology

authors： Van Horn KG,Smibert RM

更新日期：1982-03-01 00:00:00

abstract：:The mouse model of intraperitoneal sepsis with Proteus rettgeri was used to evaluate the anti-endotoxic effect of polymyxin B sulfate. An unexpected reversal of the usual protective effect of polymyxin in experimental enterobacterial sepsis was observed in which the lethality of the infection was enhanced. ...

journal_title：Canadian journal of microbiology

authors： Bannatyne RM,Cheung R

更新日期：1980-02-01 00:00:00

abstract：:Shiga-toxin-producing Escherichia coli (STEC) represent a major concern for waterborne disease outbreaks associated with consumption of contaminated groundwater. Over 4 million people rely on private groundwater systems as their primary drinking water source in Canada; many of these systems do not meet current standar...

journal_title：Canadian journal of microbiology

authors： Reynolds C,Checkley S,Chui L,Otto S,Neumann NF

更新日期：2020-05-01 00:00:00

abstract：:Mice immunized subcutaneously with 10(6) viable yeast cells of Histoplasma capsulatum exhibited host protection to a challenge infection and also exhibited concomitant manifestations of cellular immunity to a culture filtrate antigen (yeast extract dialysate (YED)-histoplasmin). Protective immunity was determined by q...

journal_title：Canadian journal of microbiology

authors： Burt WR,Smith RA

更新日期：1983-01-01 00:00:00

abstract：:A visual micromethod for measuring antifungal effects on germination and growth is described. The antifungal agent griseofulvin and the fungus Trichophyton mentagrophytes were used as materials to compare the micromethod with a standard assay based on dry mycelial weight. The micromethod was more sensitive than the we...

journal_title：Canadian journal of microbiology

authors： Kerbs S,Hutton RD,Hollister JW

更新日期：1978-05-01 00:00:00

abstract：:We have previously reported that the lethal toxicity of 5-fluorouracil (5-FU) in specific-pathogen-free mice is due to an indigenous infection with Escherichia coli (K. Nomoto, T. Yokokura, Y. Yoshikai, et al. Can. J. Microbiol. 37:244-247, 1991). In the present study, we demonstrate that nonspecific immunostimulation...

journal_title：Canadian journal of microbiology

authors： Nomoto K,Yokokura T,Nomoto K

更新日期：1992-08-01 00:00:00

abstract：:Six effective Rhizobium leguminosarum bv. phaseoli strains were examined for nodulation competitiveness on common bean (Phaseolus vulgaris L.), using all possible two-strain combinations of inoculum. Nodule occupancy was determined with strain-specific fluorescent antibodies. The strains were divided into three groups...

journal_title：Canadian journal of microbiology

authors： George ML,Robert FM

更新日期：1992-02-01 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

authors： Villemur R

更新日期：1995-10-01 00:00:00

abstract：:Pleomorphic deterioration is a process where a fungal isolate loses the ability to produce conidia during repeated subculturing. We have previously isolated strains of the entomopathogenic fungus Metarhizium anisopliae that have irreversibly lost the ability to produce conidia and only produce mycelia when grown on ag...

journal_title：Canadian journal of microbiology

authors： Kamp AM,Bidochka MJ

更新日期：2002-09-01 00:00:00

abstract：:The results of sucrose-density-gradient centrifugation of a cell-free particulate enzyme system from Acetobacter xylinum which was incubated with uridine diphosphoglucose indicate that there is a polymeric intermediate in the biosynthesis of cellulose. This intermediate has the properties of an oligomer of glucose, is...

journal_title：Canadian journal of microbiology

authors： Kjosbakken J,Colvin JR

更新日期：1975-02-01 00:00:00

abstract：:The effect of the transition metal compound trans-[Rh(4-ethylpyridine)4Cl2]Cl x 2H2O on the syntheses of DNA, RNA, and protein has been investigated for an auxotrophic bacterial strain, Escherichia coli JS-1, incapable of thymidine, uridine, and histidine syntheses. At low concentration (7.4 x 10(-6) M), this rhodium ...

journal_title：Canadian journal of microbiology

authors： Seeman SL,Jack TR

更新日期：1980-05-01 00:00:00

abstract：:Legionella pneumophila grows in amoebae and has achieved the ability to grow at various temperatures, although the mechanisms controlling this ability remain poorly understood. The Icm/Dot type IVB secretion system is composed of more than 25 proteins and is known to be essential for intracellular growth. The role of...

journal_title：Canadian journal of microbiology

authors： Qin T,Iida K,Piao Z,Shiota S,Ren H,Shao Z,Yoshida S

更新日期：2012-04-01 00:00:00

abstract：:Bacterial biofilms are commonly formed on medical devices and food processing surfaces. The antimicrobials used have limited efficacy against the biofilms; therefore, new strategies to prevent and remove these structures are needed. Here, the effectiveness of brief oxidative treatments, based on the combination of sod...

journal_title：Canadian journal of microbiology

authors： Olmedo GM,Grillo-Puertas M,Cerioni L,Rapisarda VA,Volentini SI

更新日期：2015-05-01 00:00:00

abstract：:The synergistic interactions between Pseudomonas aeruginosa and virulent or attenuated murine cytomegalovirus (MCMV) were compared in vivo. Virulent MCMV challenge at a dose of 5 X 10(5) pfu/mouse intraperitoneally, followed by intranasal superinfection with 5 X 10(6) cfu/mouse of Pseudomonas aeruginosa after 48 h res...

journal_title：Canadian journal of microbiology

authors： Kournikakis B,Babiuk LA

更新日期：1987-10-01 00:00:00

abstract：:To screen, isolate, and characterize bacterial populations producing microcin J25, we report here two rapid, reliable, and sensitive methods, using polymerase chain reaction and colony blot hybridization with a digoxigenin-labelled probe. A sample of 26 Escherichia coli strains isolated from poultry intestinal content...

journal_title：Canadian journal of microbiology

authors： Duarte M,Cottenceau G,Portrait V,Pons AM

更新日期：2001-09-01 00:00:00

abstract：:The transmission of multi-drug resistant pathogens and antimicrobial-resistant genes is an arising problem with multiple factors involved (humans, domestic animals, wildlife). The aim of this study was to investigate the presence of Escherichia coli isolates with different antimicrobial resistance genes from backyard ...

journal_title：Canadian journal of microbiology

authors： Talavera-Gonzalez JM,Talavera-Rojas M,Soriano-Vargas E,Vazquez-Navarrete J,Salgado-Miranda C

更新日期：2021-01-04 00:00:00

abstract：:Several physiological groups of bacteria were examined for the presence of a cytochrome b - like pigment which is demonstrable in dithionite-reduced minus substrate-reduced difference spectra. This pigment is characterized by an unusually high alpha band at 567 nm, a low concentration relative to conventional cytochro...

journal_title：Canadian journal of microbiology

authors： Jacobs NJ,O'Hara J,Gray CT

更新日期：1983-09-01 00:00:00

abstract：:This study, the first of arbovirus activity in Prince Edward Island, has shown antibodies to the snowshoe hare strain of the California encephalitis group virus to be present in sera of wild and domestic animals; 15.35% of snowshoe hare, 20% of equine. and 2.5% of bovine sera were positive for hemagglutination inhibit...

journal_title：Canadian journal of microbiology

authors： McFarlane BL,Embree JE,Embil JA,Artsob H,Weste JB,Rozee KR

更新日期：1981-11-01 00:00:00

abstract：:Pathogenic and nonpathogenic isolates of Venturia inaequalis were grown in liquid culture. Hyphae were treated with two types of fimbrial antiserum (AU- and AV-1) and examined by immunofluorescent microscopy, in order to establish the distribution of fimbrial epitopes in whole cell mounts. The AV-1 antiserum was speci...

journal_title：Canadian journal of microbiology

authors： Svircev AM,Smith RJ,Zhou T,Day AW

更新日期：2000-09-01 00:00:00

abstract：:Fluorescent Pseudomonas spp. isolated from fruiting bodies (FB) of Cantharellus cibarius were characterized physiologically and genetically and were compared with fluorescent Pseudomonas from forest soil and with sequences from the GenBank database. Pseudomonas spp. from FB differed physiologically from isolates from ...

journal_title：Canadian journal of microbiology

authors： Rangel-Castro JI,Levenfors JJ,Danell E

更新日期：2002-08-01 00:00:00

abstract：:Cloning and transcriptional regulation of the KlFBA1 gene that codes for the class II fructose-1,6-bisphosphate aldolase of the yeast Kluyveromyces lactis are described. KlFBA1 mRNA diminishes transiently during the shift from hypoxic to fully aerobic conditions and increases in the reversal shift. This regulation is ...

journal_title：Canadian journal of microbiology

authors： Prado SM,Cerdán ME,González Siso MI

更新日期：2004-08-01 00:00:00

abstract：:A new type of tube (the Lee tube) has been developed for use in the cultivation and enumeration of obligate anaerobes. The Lee tube is a double-walled, screw-capped tube which allows the formation of a thin cylinder of agar medium between the two walls. Anaerobiosis is achieved through deoxygenation of the deep cylind...

journal_title：Canadian journal of microbiology

authors： Ogg JE,Lee SY,Ogg BJ

更新日期：1979-09-01 00:00:00