A new technique for the preparation of permanent reference cultures of fungi.

abstract：:Surface oxidation of sulfides and copper (Cu) activation are 2 of the main processes that determine the efficiency of flotation. The present study was developed with the intention to ascertain the role of the phenomena in the biomodification of sulfides by Acidithiobacillus ferrooxidans culture (cells and growth me...

journal_title：Canadian journal of microbiology

authors： Pecina-Treviño ET,Ramos-Escobedo GT,Gallegos-Acevedo PM,López-Saucedo FJ,Orrantia-Borunda E

更新日期：2012-09-01 00:00:00

abstract：:The techniques in current use for detection of pathogens in environmental samples are restricted to those organisms whose replication in either culture media or cell culture is feasible. These methods lack the selectivity and sensitivity necessary for their unequivocal detection and identification. We have developed a...

journal_title：Canadian journal of microbiology

authors： Toranzos GA,Alvarez AJ

更新日期：1992-05-01 00:00:00

abstract：:Helicobacter pylori exists in 2 distinct morphological states, helicoid and coccoid. Both have been observed in in vitro culture and in gastric biopsies. We visualized H. pylori during AGS cell infections using immunofluorescence microscopy. Anti-H. pylori mouse serum as well as human serum from H. pylori-positive pat...

journal_title：Canadian journal of microbiology

authors： Couturier MR,Stein M

更新日期：2008-07-01 00:00:00

abstract：:The presence of subtilase-cytotoxin-encoding genes was determined in 397 environmental Escherichia coli strains isolated from water, suspended solids, and sediments sampled from different hydrological and environmental conditions in a California estuary. A total of 7 strains (1.76%) were found to harbor subtilase-cyto...

journal_title：Canadian journal of microbiology

authors： Pereira Md,Byrne BA,Nguyen TB,Lewis DJ,Atwill ER

更新日期：2013-06-01 00:00:00

abstract：:Polymerase chain reaction amplification was used to compare different regions of the cytochrome c3 gene from nine strains of Desulfovibrio vulgaris, to examine homology within the species. Six 30-base polymerase chain reaction primers and three probes were synthesized on the basis of the published nucleic acid sequenc...

journal_title：Canadian journal of microbiology

authors： Kwoh DY,Vedvick TS,McCue AF,Gevertz D

更新日期：1993-04-01 00:00:00

abstract：:The release of 14CO2 from 14C-labelled glucose(G-1(-14)C, G-3,4(-14)C, G-6(-14)C) was followed in phased cultures of Candida utilis grown in a glucose- mineral salts medium under altered conditions of carbon:nitrogen limitation at doubling times of 2,4 and 6, h. Changes in oxygen uptake and CO2 evolution were observe...

journal_title：Canadian journal of microbiology

authors： Dawson PS,Westlake DW

更新日期：1975-07-01 00:00:00

abstract：:This paper reports two different enterotoxigenic classes of the genus Aeromonas isolated from fishes. Strains of A. sobria were isolated from healthy fishes only wheras strains of A. hydrophila were isolated from both healthy and moribund fishes. Aeromonas sobria and hydrophilia strains produced a cytotoxic factor and...

journal_title：Canadian journal of microbiology

authors： Boulanger Y,Lallier R,Cousineau G

更新日期：1977-09-01 00:00:00

abstract：:The ultraviolet germicidal irradiation (UVGI) dose necessary to inactivate fungal spores on an agar surface and the efficacy of UVGI were determined for cultures of Stachybotrys chartarum (ATCC 208877). This study employed a UVGI testing unit consisting of four chambers with a 9-W, Phillips, low pressure, mercury UVGI...

journal_title：Canadian journal of microbiology

authors： Green CF,Davidson CS,Scarpino PV,Gibbs SG

更新日期：2005-09-01 00:00:00

abstract：:The fine structure of conidia and immature resting spores of the entomogenous fungus Entomophthora apiculata is described. The two cell types contain comparable organelles and quantities of lipid, and possess a similar cell wall structure. The large quantity of stored lipid and numerous mitochondria in each cell type ...

journal_title：Canadian journal of microbiology

authors： Lambiase JT,Yendol WG

更新日期：1977-04-01 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：:We present preliminary data on the role of antibiotics in intraabdominal sepsis using a new, clinically relevant animal model. Peritoneal cavity infection was induced by ligation and perforation of the cecum in adult rats. Surviving rats were randomized to receive either saline or cefoxitin at the time of cecal excisi...

journal_title：Canadian journal of microbiology

authors： Bohnen JM,Matlow AG,Mustard RA,Christie NA,Kavouris B

更新日期：1988-03-01 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

authors： Jendrossek D,Backhaus M,Andermann M

更新日期：1995-01-01 00:00:00

abstract：:To develop a library-dependent method of tracking fecal sources of contamination of beaches on the Atlantic coast of southwestern France, a library of 6368 Escherichia coli isolates was constructed from samples of feces, from 40 known human or animal sources collected in the vicinity of Arcachon Bay in 2010, and in Fr...

journal_title：Canadian journal of microbiology

authors： Garabetian F,Vitte I,Sabourin A,Moussard H,Jouanillou A,Mornet L,Lesne M,Lyautey E

更新日期：2020-12-01 00:00:00

abstract：:The natural reservoirs and biological characteristics of pathogenic populations of both subspecies of Photobacterium damselae in aquatic habitants remain unclear because of difficulties in obtaining pathogenic strains from the environment. In the present study, we assessed the occurrence of Photobacterium damselae sub...

journal_title：Canadian journal of microbiology

authors： Serracca L,Ercolini C,Rossini I,Battistini R,Giorgi I,Prearo M

更新日期：2011-05-01 00:00:00

abstract：:The influence of plant growth promoting (PGP) activity of bacterial communities recovered from each of six weed species (barnyard grass (Echinochloa crusfalli (L.) Beauv.), corn spurrey (Spergula arvensis L.), goldenrod (Sonchus sp.), Italian ryegrass (Lolium multiflorum L.), lamb's-quarters (Chenopodium album L.), an...

journal_title：Canadian journal of microbiology

authors： Sturz AV,Matheson BG,Arsenault W,Kimpinski J,Christie BR

更新日期：2001-11-01 00:00:00

abstract：:Mucor alternans(van Tieghem) was found to be a diphasic species in that it grew exclusively in the yeast-like budding phase under anaerobic conditions in the complex medium yeast extract-peptone-glucose broth and in tissue-culture medium 199. In the latter medium this growth form occurred also at 37C, at an initial pH...

journal_title：Canadian journal of microbiology

authors： Leyritz M,Kapica L

更新日期：1975-01-01 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：:A simplified procedure is presented for releasing and concentrating indigenous microbial cells from soil for viewing by transmission electron microscopy as thin sections or replicas of frozen-etched preparations. This procedure is compared with two others reported earlier, and their relative merits are discussed as co...

journal_title：Canadian journal of microbiology

authors： Balkwill DL,Labeda DP,Casida LE Jr

更新日期：1975-03-01 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：:In the divE mutant, which has a temperature-sensitive mutation in the tRNA1(Ser) gene, the synthesis of beta-galactosidase is dramatically decreased at the non-permissive temperature. In Escherichia coli, the UCA codon is only recognized by tRNA1(Ser). Several genes containing UCA codons are normally expressed at 42 d...

journal_title：Canadian journal of microbiology

authors： Kubo T,Aiso T,Ohki R

更新日期：2000-06-01 00:00:00

abstract：:Rhizobia are used exclusively in agricultural systems for enhancing the ability of legumes to fix atmospheric nitrogen. Knowledge about the indigenous population is necessary for the selection and application of inoculant strains. In this study, we have assessed the genetic diversity of Bradyrhizobium strains isolated...

journal_title：Canadian journal of microbiology

authors： Saleena LM,Loganathan P,Rangarajan S,Nair S

更新日期：2001-02-01 00:00:00

abstract：:A total of 230 strains of metal-tolerant bacteria from water and sediment samples collected in Chesapeake Bay were isolated on a medium containing cobalt, lead, mercury, or molybdenum. In addition, a set of 71 cultures were simultaneously isolated on glucose tryptone yeast extract agar medium without metals. Twenty-th...

journal_title：Canadian journal of microbiology

authors： Austin B,Allen DA,Mills AL,Colwell RR

更新日期：1977-10-01 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：:Yeast predation was studied with respect to the range of its distribution among ascomycetous yeasts, the range of yeast species that can be affected, and nutritional aspects of the phenomenon. The yeasts identified as predators belong to the Saccharomycopsis clade as defined on the basis of rDNA sequence relatedness. ...

journal_title：Canadian journal of microbiology

authors： Lachance MA,Pupovac-Velikonja A,Natarajan S,Schlag-Edler B

更新日期：2000-06-01 00:00:00

abstract：:The course of intranasal infection of Sendai virus in CBA and DBA mice was investigated in animals decomplemented with purified cobra venom factor. The mice were decomplemented either immediately before inoculation or at 4 days postinfection. Depletion of complement after the infection had been established had no appa...

journal_title：Canadian journal of microbiology

authors： Finnie JC,Aston WP,O'Shaughnessy MV,Stewart RB

更新日期：1982-05-01 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：: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

authors： Racagni G,de Lema MG,Hernández G,Machado-Domenech EE

更新日期：1995-10-01 00:00:00

abstract：:For the recently described serotype 15 of biotype I and serotypes 13 and 14 of biotype II of Actinobacillus pleuropneumoniae, fhuA and hgbA were detected by polymerase chain reaction and DNA sequencing. To determine the substrate specificity of the iron receptors FhuA and HgbA and to study their role in the virulence ...

journal_title：Canadian journal of microbiology

authors： Shakarji L,Mikael LG,Srikumar R,Kobisch M,Coulton JW,Jacques M

更新日期：2006-04-01 00:00:00

abstract：:Among nine eluents tested, 0.5% (w/v) isoelectric casein at pH 9.0 and 0.5% (w/v) non-fat dry milk (pH 9.0) were the most efficient in eluting poliovirus type 1 (Sabin) from Eustis fine sand. However, no significant difference was found between the overall (elution followed by concentration) virus recoveries by non-fa...

journal_title：Canadian journal of microbiology

authors： Bitton G,Charles MJ,Farrah SR

更新日期：1979-08-01 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

authors： Ali D,Lacroix C,Thuault D,Bourgeois CM,Simard RE

更新日期：1995-09-01 00:00:00