Direct lymphocytotoxicity against herpes simplex virus infected cells.


:This study was undertaken to determine if direct cytotoxicity (DC) against herpes simplex virus infected cells, perhaps mediated by T cells, could be demonstrated in individuals subject to recurrent herpes labialis. The mononuclear cells from 7 out of 17 individuals with recurrent herpes expressed DC whereas no DC was ever exhibited by 7 individuals without a previous history of herpes infections. Several approaches were used to show that the cytotoxicity being detected was predominately of the direct type rather than antibody-dependent cell cytotoxicity (ADCC). Since the effector cells of the DC were sensitive to trypsin treatment and behaved as do natural killer (NK) cells upon cell fractionation, the results were taken to imply that the DC was attributable to a NK-effector cell type rather than a classical T lymphocyte.


Can J Microbiol


Fujimiya Y,Babiuk LA,Rouse BT




Has Abstract


1978-09-01 00:00:00












  • Microbiota of regular sodium and sodium-reduced ready-to-eat meat products obtained from the retail market.

    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

    pub_type: 杂志文章


    authors: Miller P,Liu X,McMullen LM

    更新日期:2015-02-01 00:00:00

  • Streptococci and lactococci synthesize large amounts of HPr(Ser-P)(His~P).

    abstract::HPr is a protein of the phosphoenolpyruvate:sugar phosphotransferase transport system (PTS). In gram-positive bacteria, HPr can be phosphorylated on Ser-46 by the kinase/phosphorylase HprK/P and on His-15 by phospho-enzyme I (EI~P) of the PTS. In vitro studies with purified HPrs from Bacillus subtilis, Enterococcus fa...

    journal_title:Canadian journal of microbiology

    pub_type: 杂志文章


    authors: Roy DJ,Casabon I,Vaillancourt K,Huot JL,Vadeboncoeur C

    更新日期:2008-11-01 00:00:00

  • Environmental factors affecting the antagonism of Pseudomonas cepacia against Trichoderma viride.

    abstract::Antagonistic activity of the bacterium Pseudomonas cepacia against Trichoderma viride was greatly influenced by nutritional and environmental conditions. Xylose and trehalose strongly enhanced the antifungal activity of P. cepacia, whereas mannitol and glucose had little effect. The carbon sources that enhanced the an...

    journal_title:Canadian journal of microbiology

    pub_type: 杂志文章


    authors: Upadhyay RS,Visintin L,Jayaswal RK

    更新日期:1991-11-01 00:00:00

  • Interaction of lectins with Neisseria gonorrhoeae.

    abstract::Fifty-four strains of Neisseria gonorrhoeae were examined for their ability to be agglutinated by various lectins. Wheat germ agglutinin, ricin, soybean lectin, and peanut agglutinin agglutinated all strains tested. Dolichos biflorus, Sophora japonica, Maclura pomifera, Ulex Europaeus, Lens culinaris, Canavalia ensifo...

    journal_title:Canadian journal of microbiology

    pub_type: 杂志文章


    authors: Allen PZ,Connelly MC,Apicella MA

    更新日期:1980-04-01 00:00:00

  • Presence of a new cytochrome b - like pigment with a peak at 567 nm in various aerobic bacteria.

    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

    pub_type: 杂志文章


    authors: Jacobs NJ,O'Hara J,Gray CT

    更新日期:1983-09-01 00:00:00

  • Spoligotype analysis of Mycobacterium bovis isolates from Northern México.

    abstract::Bovine tuberculosis is still rife in Latin America, producing huge economic losses. There are very few studies of the way this disease is spread through this geographical region, particularly in countries that border those that are almost free of Mycobacterium bovis. In this work, we have analyzed the spacer oligonucl...

    journal_title:Canadian journal of microbiology

    pub_type: 杂志文章


    authors: Cobos-Marín L,Montes-Vargas J,Zumarraga M,Cataldi A,Romano MI,Estrada-Garcia I,Gonzalez-y-Merchand JA

    更新日期:2005-11-01 00:00:00

  • Directed biosynthesis of novel derivatives of echinomycin by Streptomyces echinatus. I. Effect of exogenous analogues of quinoxaline-2-carboxylic acid on the fermentation.

    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

    pub_type: 杂志文章


    authors: Gauvreau D,Waring MJ

    更新日期:1984-04-01 00:00:00

  • Numerical taxonomy of heavy metal-tolerant bacteria isolated from an estuary.

    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

    pub_type: 杂志文章


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

    更新日期:1977-10-01 00:00:00

  • Release of bacterial alkaline phosphatase in the rumen of cattle fed a feedlot bloat-provoking diet or a hay diet.

    abstract::Alkaline phosphatase (APase) was present in the bovine rumen in both cell-free and cell-associated states and levels of the enzyme varied with dietary regime. Reaction product deposition showed that the enzyme was associated with the mixed bacterial population. No enzyme was observed to be associated with protozoa. Tr...

    journal_title:Canadian journal of microbiology

    pub_type: 杂志文章


    authors: Cheng KJ,Hironaka R,Costerton JW

    更新日期:1976-05-01 00:00:00

  • Biochemical and physiological characteristics of Yarrowia lipolytica strains in relation to isolation source.

    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


    authors: Sinigaglia M,Lanciotti R,Guerzoni ME

    更新日期:1994-01-01 00:00:00

  • Prevention of 5-fluorouracil-induced infection with indigenous Escherichia coli in tumor-bearing mice by nonspecific immunostimulation.

    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

    pub_type: 杂志文章


    authors: Nomoto K,Yokokura T,Nomoto K

    更新日期:1992-08-01 00:00:00

  • Eight UCA codons differentially affect the expression of the lacZ gene in the divE42 mutant of Escherichia coli.

    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

    pub_type: 杂志文章


    authors: Kubo T,Aiso T,Ohki R

    更新日期:2000-06-01 00:00:00

  • Exopolysaccharide depolymerases induced by Rhizobium bacteriophages.

    abstract::Enzymes induced by two Rhizobium trifolii bacteriophages caused depolymerization of exopolysaccharides from most R. trifolii and R. leguminosarum strains tested, but did not, in general, attack the exopolysaccharides of R. meliloti, the slow-growing rhizobia, or Agrobacterium. Ca2+ and (or) Mg2+ were required for enzy...

    journal_title:Canadian journal of microbiology

    pub_type: 杂志文章


    authors: Barnet YM,Humphrey B

    更新日期:1975-10-01 00:00:00

  • Evidence for conserved tRNA genes in the 16S-23S rDNA spacer sequence and two rrn operons of Xylella fastidiosa.

    abstract::The 16S-23S rDNA spacer of the type strain (ATCC 35879) of Xylella fastidiosa was amplified by PCR, cloned, and sequenced. The spacer sequence (455 bp) contains two tRNA (tRNA(ala) and tRNA(ile)) genes. Identical tRNA genes were also found in the 16S-23S spacer sequences of all the 51 strains of X. fastidiosa retrieve...

    journal_title:Canadian journal of microbiology

    pub_type: 杂志文章


    authors: Chen J,Banks D,Jarret RL,Jones JB

    更新日期:2000-12-01 00:00:00

  • Mitogenic and protective activity associated with a lipopolysaccharide from Coxiella burnetii.

    abstract::A purified lipopolysaccharide (LPS) isolated from the rickettsial agent of Q fever, Coxiella burnetii phase 1, possesses some of the in vivo and in vitro biological properties previously only associated with bacterial endotoxins. The Coxiella LPS is mitogenic for guinea pig leukocytes, induces non-specific resistance ...

    journal_title:Canadian journal of microbiology

    pub_type: 杂志文章


    authors: Paquet A Jr,Rael ED,Klassen D,Martinez I,Baca OG

    更新日期:1978-12-01 00:00:00

  • Identification of Borrelia bissettii in Ixodes scapularis ticks from New Brunswick, Canada.

    abstract::Lyme disease is a tick-borne disease that is emerging in Canada. The disease is caused by spirochetes of the Lyme borreliosis group, which is expanding as new species are discovered. In Canada, Lyme disease risk has so far been assessed primarily by detection of Borrelia burgdorferi sensu stricto. Of Ixodes scapularis...

    journal_title:Canadian journal of microbiology

    pub_type: 杂志文章


    authors: Lewis J,Lloyd VK

    更新日期:2019-02-01 00:00:00

  • Genetic diversity of Bradyrhizobium strains isolated from Arachis hypogaea.

    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

    pub_type: 杂志文章


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

    更新日期:2001-02-01 00:00:00

  • Antimicrobial activity of endophytic fungi associated with Orchidaceae in Brazil.

    abstract::The purpose of this study was to examine antimicrobial activity of endophytic fungi isolated from the leaves, stems, and roots of 54 species of Orchidaceae collected in a Brazilian tropical ecosystem. In total, 382 filamentous fungi and 13 yeast isolates were obtained and cultured to examine the production of crude ex...

    journal_title:Canadian journal of microbiology

    pub_type: 杂志文章


    authors: Vaz AB,Mota RC,Bomfim MR,Vieira ML,Zani CL,Rosa CA,Rosa LH

    更新日期:2009-12-01 00:00:00

  • Composition and properties of the cell wall of Methanospirillum hungatii.

    abstract::Dithiothreitol reacted, at pH 9.0, with the isolated cell walls of Methanospirillum hungatii, to release about 23% of the cell wall dry weight as a high molecular weight fraction (> 0.5 million daltons). Untreated walls consisted of 70% amino acids, 11% lipid, and 6.6% carbohydrate. Sugars were identified as rhamnose,...

    journal_title:Canadian journal of microbiology

    pub_type: 杂志文章


    authors: Sprott GD,McKellar RC

    更新日期:1980-02-01 00:00:00

  • Measurement of dissolved carbon dioxide.

    abstract::Several probes for measuring dissolved carbon dioxide (CO2) concentration were installed in a 68-litre fermentor and their effectiveness compared. Submerged silastic rubber tubing gave reproducible results over a wide range of operating conditions and was generally superior to all other probes evaluated. The silastic ...

    journal_title:Canadian journal of microbiology

    pub_type: 杂志文章


    authors: Alford JS Jr

    更新日期:1976-01-01 00:00:00

  • Minute tubular forms in soil.

    abstract::Large numbers of minute, flat, long, straight, but often broken structures were observed in aqueous extracts of soil. We have applied the purely descriptive term 'tubules' to these structure, because they apparently became flattened during preparation for electron-microscopic viewing. The tubules appeared to be compos...

    journal_title:Canadian journal of microbiology

    pub_type: 杂志文章


    authors: Casida LE Jr,Liu KC

    更新日期:1979-06-01 00:00:00

  • Deoxyribonucleic acid relationships among members of the genus Aeromonas.

    abstract::Polynucleotide sequences among 24 motile and 11 non-motile aeromonads were studied by analysis of deoxyribonucleic acid - deoxyribonucleic acid (DNA-DNA) duplexes with endonuclease S1. In addition, DNA base composition (mole % guanine and cytosine (G + C)) and relative genome sizes were determined for selected strains...

    journal_title:Canadian journal of microbiology

    pub_type: 杂志文章


    authors: MacInnes JI,Trust TJ,Crosa JH

    更新日期:1979-05-01 00:00:00

  • Recovery of novel alkaline phosphatase-encoding genes (phoX) from eutrophic Lake Taihu.

    abstract::To expand current knowledge on the molecular aspects of alkaline phosphatase PhoX in shallow eutrophic freshwaters, we investigated the genetic diversity and abundance of the PhoX-encoding gene (phoX) in 4 ecological regions in Lake Taihu, China, following a gradient in total phosphorus concentrations ranging from hyp...

    journal_title:Canadian journal of microbiology

    pub_type: 杂志文章


    authors: Dai J,Chen D,Gao G,Tang X,Wu S,Wu X,Zhou J

    更新日期:2014-03-01 00:00:00

  • Repression of motility and flagellin production at 37 degrees C is stronger in Listeria monocytogenes than in the nonpathogenic species Listeria innocua.

    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


    authors: Kathariou S,Kanenaka R,Allen RD,Fok AK,Mizumoto C

    更新日期:1995-07-01 00:00:00

  • Bioflotation of sulfide minerals with Acidithiobacillus ferrooxidans in relation to copper activation and surface oxidation.

    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

    pub_type: 杂志文章


    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

  • Characterization of intronic structures and alternative splicing in Phytophthora sojae by comparative analysis of expressed sequence tags and genomic sequences.

    abstract::The oomycetes, a distinct phylogenetic lineage of fungus-like microorganisms, are heterokonts (stramenopiles) belonging to the supergroup Chromalveolata. Although the complete genomic sequences of a number of oomycetes have been reported, little information regarding the introns therein is available. Here, we investig...

    journal_title:Canadian journal of microbiology

    pub_type: 杂志文章


    authors: Shen D,Ye W,Dong S,Wang Y,Dou D

    更新日期:2011-02-01 00:00:00

  • Molecular and morphological markers for rapid distinction between 2 Colletotrichum species.

    abstract::Endophytic microorganisms reside asymptomatically within plants and are a source of new bioactive products for use in medicine, agriculture, and industry. Colletotrichum (teleomorph Glomerella) is a fungus widely cited in the literature as a producer of antimicrobial substances. Identification at the species level, ho...

    journal_title:Canadian journal of microbiology

    pub_type: 杂志文章


    authors: Pileggi SA,Vieira de Oliveira SF,Andrade CW,Vicente VA,Dalzoto Pdo R,Kniphoff da Cruz G,Gabardo J,Massola NS,Tozze HJ,Pileggi M,Kava-Cordeiro V,Galli-Terasawa LV,Pimentel IC,Stringari D,Glienke C

    更新日期:2009-09-01 00:00:00

  • Regulation of peptidoglycan biosynthesis in relA+ and relA- strains of Escherichia coli during diauxic growth on glucose and lactose.

    abstract::In both relA+ and relA- derivatives, the biosynthesis of peptidoglycan, lipid intermediates, and nucleotide precursors abruptly halted at the onset of diauxic lag from glucose to lactose with a concomitant accumulation of guanosine 5'-diphosphate 3'-diphosphate (ppGpp). These results are consistent with the proposal t...

    journal_title:Canadian journal of microbiology

    pub_type: 杂志文章


    authors: Ishiguro EE

    更新日期:1979-10-01 00:00:00

  • Schizophyllum commune Fr. as a destructive mycoparasite.

    abstract::Schizophyllum commune Fr. was shown, by light, scanning, and transmission electron microscopy, to be a destructive mycoparasite on several phytopathogenic and nematode-trapping fungi. The hyphae of S. commune coiled around host hyphae and fruiting structures and penetrated them by means of either unspecialized hyphae ...

    journal_title:Canadian journal of microbiology

    pub_type: 杂志文章


    authors: Tzean SS,Estey RH

    更新日期:1978-07-01 00:00:00

  • Evaluation of bactericidal assay in serotyping Neisseria meningitidis group A.

    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

    pub_type: 杂志文章


    authors: Quan AL,Sippel JE

    更新日期:1979-08-01 00:00:00