Swarming motility by Photorhabdus temperata is influenced by environmental conditions and uses the same flagella as that used in swimming motility.

abstract：:A Gram-negative aerobic bacterium, designated as JN8, was isolated from activated sludge and soil in a pesticides factory in China. It was found that JN8 had a high capacity for degrading a broad range of type II pyrethroids and utilizing these pyrethroids as the sole carbon source for cell growth. The degradation rat...

journal_title：Canadian journal of microbiology

authors： Jin Z,Guo Q,Zhang Z,Yan T

更新日期：2014-08-01 00:00:00

abstract：:Aspergillus fumigatus conidia have been linked to severe aspergillosis in immunocompromised patients. Recently, the cytotoxic effect of secondary metabolites from A. fumigatus conidia was reported. In the present work, a methodology used to detect cell death markers in fungal hyphae was adapted to study conidia cell d...

journal_title：Canadian journal of microbiology

authors： Oliveira M,Pereira C,Bessa C,Araujo R,Saraiva L

更新日期：2016-02-01 00:00:00

abstract：:The accumulation of radioactive Cs by fungi was studied by analysis of fruit bodies (n (total) = 205, n greater than or equal to 5 for 22 species) collected in 1988 in a Norwegian mountain area with high deposition of radiocaesium from the Chernobyl accident. To account for site variation, the radiocaesium content of ...

journal_title：Canadian journal of microbiology

authors： Bakken LR,Olsen RA

更新日期：1990-10-01 00:00:00

abstract：:Caldibacillus debilis strains GB1 and Tf display distinct phenotypes. Caldibacillus debilis GB1 is capable of anaerobic growth and can synthesize ethanol while C. debilis Tf cannot. Comparison of the GB1 and Tf genome sequences revealed that the genomes were highly similar in gene content and showed a high level of sy...

journal_title：Canadian journal of microbiology

authors： Wushke S,Froese A,Fristensky B,Zhang XL,Spicer V,Krokhin OV,Levin DB,Sparling R

更新日期：2019-06-01 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

authors： Takasawa T,Sagisaka K,Yagi K,Uchiyama K,Aoki A,Takaoka K,Yamamato K

更新日期：1997-05-01 00:00:00

abstract：:Vaccination is the most promising strategy to reduce the incidence of pneumococcal infection. Although there are vaccines available, all of them are based on polysaccharide antigens (conjugated or not). In addition to their high cost, those vaccines do not cover all serotypes. To overcome these hindrances, we evaluate...

journal_title：Canadian journal of microbiology

authors： Araújo HF,Campos PC,Camargo DR,Pereira FN,Samuel ML,Oliveira MA,Fortes-Dias CL,Leclercq SY

更新日期：2012-09-01 00:00:00

abstract：:During growth on minimal salts - glucose media supplemented with high concentrations of Na2SO3 (10-3 and 10-2 M), Salmonella heidelberg exhibited cytological and growth responses which indicated increased cellular toxicity with increasing sulfite concentrations. The large quantities of sulfide evolved during growth at...

journal_title：Canadian journal of microbiology

authors： McCready RG,Krouse HR

更新日期：1979-12-01 00:00:00

abstract：:The purpose of this study was to evaluate experimentally the immunogenicity in rabbits of rubella subunits adsorbed to the adjuvant Quil A. The adsorbed viral proteins form structurally defined ImmunoStimulating COMplexes (ISCOMs). Rubella ISCOMs were tested for their capacity to induce neutralizing and hemagglutinati...

journal_title：Canadian journal of microbiology

authors： Trudel M,Nadon F,Séguin C,Payment P

更新日期：1988-12-01 00:00:00

abstract：:The deliberate application of the methodology of contemporary molecular genetics to problems in bacterial systematics has led to a broad new understanding of the evolutionary history of both prokaryotes and eukaryotes. In this review, I discuss some of the major conclusions of this endeavour and try to predict future ...

journal_title：Canadian journal of microbiology

authors： Doolittle WF

更新日期：1988-04-01 00:00:00

abstract：:We examined isolates from 4 commercial bioinsecticides based on different strains of Bacillus thuringiensis subspecies (kurstaki, israelensis, aizawai, and tenebrionis) for the presence of genes encoding proteins with known enterotoxigenicity (nhe, hbl, cytk, ces) and various other putative virulence genes (piplc, sph...

journal_title：Canadian journal of microbiology

authors： Kyei-Poku G,Gauthier D,Pang A,van Frankenhuyzen K

更新日期：2007-12-01 00:00:00

abstract：:In Salmonella typhimurium LT2 the F factor of Escherichia coli K-12 replicates normally but is repressed; Flac+ cells give no visible lysis on solid media with male-specific phages, low frequency transfer of Flac+ (0.001-0.007 per donor cell), few f2 infective centers (0.002-0.006 per cell), and they propagate male-sp...

journal_title：Canadian journal of microbiology

authors： Sanderson KE,Kadam SK,MacLachlan PR

更新日期：1983-09-01 00:00:00

abstract：:Natural enrichments of magnetotactic bacteria were used to study the sites where heavy metals accumulate in uncultured bacteria. Most bacteria obtained by magnetic concentration from these enrichments contained, in addition to the magnetosomes, large phosphorus-rich granules in the cytoplasm. Metal (Zn, Mn, Sr, Cd, Al...

journal_title：Canadian journal of microbiology

authors： Keim CN,Lins U,Farina M

更新日期：2001-12-01 00:00:00

abstract：:Through gas chromatography - mass spectrometry, the presence of oxylipins, mainly 3-hydroxy 9:1 and 3-hydroxy 10:1, was detected in Saccharomycopsis fermentans, Saccharomycopsis javanensis, and Saccharomycopsis vini. The distribution of these compounds was mapped using immunofluorescence microscopy, and they were foun...

journal_title：Canadian journal of microbiology

authors： Sebolai OM,Kock JL,Pohl CH,Botes PJ,Strauss CJ,Van Wyk PW,Nigam S

更新日期：2005-07-01 00:00:00

abstract：:The entire nucleotide sequence of the rsaA gene, encoding the paracrystalline surface (S) layer protein (RsaA) of Caulobacter crescentus CB15A, was determined. The rsaA gene encoded a protein of 1026 amino acids, with a predicted molecular weight of 98,132. Protease cleavage of mature RsaA protein and amino acid seque...

journal_title：Canadian journal of microbiology

authors： Gilchrist A,Fisher JA,Smit J

更新日期：1992-03-01 00:00:00

abstract：:Habitat fragmentation affects the biodiversity and function of aboveground organisms in natural ecosystems but has not been studied for effects on belowground species. In this paper, we consider the diversity of the rhizobia associated with the indigenous legume Dalea purpurea in 3 residual prairie areas in Minnesota ...

journal_title：Canadian journal of microbiology

authors： Tlusty B,van Berkum P,Graham PH

更新日期：2005-01-01 00:00:00

abstract：:A soluble cytochrome P450 (P450EP1A) induced by 2-ethoxyphenol was purified to apparent homogeneity from Corynebacterium sp. strain EP1. The P450EP1A showed a single band on sodium dodecyl sulfate-polyacrylamide gel electrophoresis with a molecular weight of about 45 kDa. The CO-reduced difference spectra of P450EP1A ...

journal_title：Canadian journal of microbiology

authors： Kawahara N,Ikatsu H,Kawata H,Miyoshi S,Tomochika K,Sinoda S

更新日期：1999-10-01 00:00:00

abstract：:Pili are essential adhesive determinants for many bacterial pathogens. A suppressor mutation screen that takes advantage of a pilus-mediated self-aggregative "hockey-puck" colony phenotype was designed to identify novel regulators of type I pili in Serratia marcescens. Mutations that decreased pilus biosynthesis mappe...

journal_title：Canadian journal of microbiology

authors： Shanks RM,Stella NA,Brothers KM,Polaski DM

更新日期：2016-01-01 00:00:00

abstract：:Bacterial communities that can degrade surfactants have been selected from coastal seawaters contaminated by urban sewages. Only the linear fraction of commercial anionic surfactants was quickly degraded, and a residual fraction representing 10% of the initial concentration always remained. The highest concentrations ...

journal_title：Canadian journal of microbiology

authors： Sigoillot JC,Nguyen MH

更新日期：1987-10-01 00:00:00

abstract：:Bacteriophages are associated with reduced fecal shedding of Shiga-toxin-producing Escherichia coli O157:H7 (STEC O157:H7) in cattle. Four phages exhibiting activity against 12 of 14 STEC O157:H7 strains, representing 11 common phage types, were isolated. Phages did not lyse non-O157 E. coli, with 11 of the 12 STEC st...

journal_title：Canadian journal of microbiology

authors： Niu YD,Stanford K,Ackermann HW,McAllister TA

更新日期：2012-07-01 00:00:00

abstract：:An intracellular invertase was induced in cultures of Clostridium pasteurianum utilizing sucrose as its carbon source for growth. This enzyme synthesis could be repressed by the addition of fructose of a sucrose-growing culture. In contrast, invertase activity was not affected by the addition of glucose to sucrose-gro...

journal_title：Canadian journal of microbiology

authors： Laishley EJ

更新日期：1975-11-01 00:00:00

abstract：:The effects of the Clostridium difficile toxin were examined in HeLa and mouse adrenal tumor (MAT) cells. Cytotoxicity was evaluated by vital dye exclusion and 51Cr release. In both HeLa and MAT cells, C. difficile toxin caused rounding of virtually 100% of cells. This rounding was distinguishable from rounding produc...

journal_title：Canadian journal of microbiology

authors： Gurwith MJ,Langston C,Dunsmore B

更新日期：1982-01-01 00:00:00

abstract：:Evidence has shown that individuals exposed to indoor toxic molds for extended periods of time have elevated risk of developing numerous respiratory illnesses. It is not clear at the cellular level what impact mold exposure has on the immune system. Herein, we show that 2 fungal volatiles (E)-2-octenal and oct-1-en-3-...

journal_title：Canadian journal of microbiology

authors： Hokeness K,Kratch J,Nadolny C,Aicardi K,Reid CW

更新日期：2014-01-01 00:00:00

abstract：:Purification and chemical characterization of an immunosuppressive exopolysaccharide from Capnocytophaga ochracea strain 25 are described. This polysaccharide was extracted from spent culture medium by cold ethanol precipitation. Purification was accomplished by trichloroacetic acid and pronase treatments in combinati...

journal_title：Canadian journal of microbiology

authors： Dyer JK,Bolton RW

更新日期：1985-01-01 00:00:00

abstract：:Nitrogen-fixing, field-obtained root nodules of the silky green alder were studied by transmission electron microscopy. The nodule endophyte exhibited a prokaryotic cytology and was present in two forms: the hypha(0.3-1.0mum), which was branched and septate, and the vesicle (3-5mum), which was also septate and develo...

journal_title：Canadian journal of microbiology

authors： Lalonde M,Knowles R

更新日期：1975-07-01 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：:Canadian oil sands tailings are predominately sodic residues contaminated by hydrocarbons such as naphthenic acids. These conditions are harsh for plant development. In this study, we evaluated the effect of inoculating roots of Alnus viridis ssp. crispa and Alnus incana ssp. rugosa with ectomycorrhizal fungi in the p...

journal_title：Canadian journal of microbiology

authors： Beaudoin-Nadeau M,Gagné A,Bissonnette C,Bélanger PA,Fortin JA,Roy S,Greer CW,Khasa DP

更新日期：2016-07-01 00:00:00

abstract：:Candida tropicalis synthesizes a hydroxylase (3 to 5 nmol of product formed per minute per milligram of protein) and a cytochrome P-450 (0.10 to 0.13 nmol per milligram of protein) during growth on n-tetradecane. A three- to four-fold increase in the level of NADPH cytochrome c reductase is also observed in those cell...

journal_title：Canadian journal of microbiology

authors： Gilewicz M,Zacek M,Bertrand JC,Azoulay E

更新日期：1979-02-01 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：:Ribosomal preparations from Neisseria gonorrhoeae types 1 and 4 were examined for their in vitro stimulation of mouse splenocytes to determine the ribosomal moiety or contaminant responsible for the immunoproliferative activity. In immunodiffusion tests with homologous rabbit antiserum, crude 70S ribosomes formed four...

journal_title：Canadian journal of microbiology

authors： Brodeur BR

更新日期：1978-05-01 00:00:00

abstract：:In the frame of a survey of potentially endophytic N2-fixing Burkholderia associated with maize in Mexico, its country of origin, the soil of an indigenous maize field near Oaxaca was studied. Under laboratory conditions, plant seedlings of two ancient maize varieties were used as a trap to select endophyte candidates...

journal_title：Canadian journal of microbiology

authors： Estrada P,Mavingui P,Cournoyer B,Fontaine F,Balandreau J,Caballero-Mellado J

更新日期：2002-04-01 00:00:00