Cloning of a xylanase gene from the ruminal fungus Neocallimastix patriciarum 27 and its expression in Escherichia coli.

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：:Nitrogenase in Azotobacter chroococcum whole cells was inhibited by enzymically generated superoxide anion (O2-), hydrogen peroxide, and ethyl hydrogen peroxide. The degree of inhibition produced by O2- was related to the quantity of oxygen supplied to the organisms in continuous cultures. O2- also inhibited oxygen up...

journal_title：Canadian journal of microbiology

authors： Buchanan AG

更新日期：1977-11-01 00:00:00

abstract：: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...

journal_title：Canadian journal of microbiology

authors： Fujimiya Y,Babiuk LA,Rouse BT

更新日期：1978-09-01 00:00:00

abstract：:The effect of atmospheric composition and storage temperature on growth and survival of uninjured and sublethally heat-injured Escherichia coli O157:H7, inoculated onto brain heart infusion agar containing 0.3% beef extract (BEM), was determined. BEM plates were packaged in barrier bags in air, 100% CO2, 100% N2, 20% ...

journal_title：Canadian journal of microbiology

authors： Semanchek JJ,Golden DA,Williams RC

更新日期：1999-03-01 00:00:00

abstract：:Growth rates and cell yields of Mycobacterium convolutum strain R22 grown on a wide range of both odd- and even-numbered carbon solid n-alkanes decreased as the substrate carbon number increased. Cellular lipid was 2.5 times higher following growth on the hydrocarbon substrates. The amount of polar lipid was found to ...

journal_title：Canadian journal of microbiology

authors： Hallas LE,Vestal JR

更新日期：1978-10-01 00:00:00

abstract：:Many studies on quorum quenching focus on the discovery and characterization of novel acyl-homoserine lactonases (AHL-lactonases) because these enzymes could be used in the control of diseases caused by Gram-negative bacteria. The effects of quorum quenching are also remarkable in the performance of bacterial consorti...

journal_title：Canadian journal of microbiology

authors： Gómez-Garzón C,Dussán J

更新日期：2017-01-01 00:00:00

abstract：:Using a gene fusion approach, hybrid proteins were created by linking alkaline phosphatase (PhoA) or a cellulase reporter (delta CenA) to four large N-terminal portions of the Caulobacter crescentus surface (S)-layer protein (RsaA; 1026 amino acids). Three of the sites (amino acids 189, 220, 315) were selected on the ...

journal_title：Canadian journal of microbiology

authors： Bingle WH,Smit J

更新日期：1994-09-01 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：:Our purpose was to study bacterial antagonism between a limited number of strictly anaerobic strains and Clostridium perfringens in the intestinal tract of gnotobiotic rodents. Gnotobiotic mice harboring a Bacteroides thetaiotaomicron, a Fusobacterium necrogenes, and a Clostridium sp. strain were protected against pat...

journal_title：Canadian journal of microbiology

authors： Yurdusev N,Nicolas JL,Ladire M,Ducluzeau R,Raibaud P

更新日期：1987-03-01 00:00:00

abstract：:The antiserum agar method (ASA), which is based on the formation of immunoprecipitates around bacterial growth on agar containing meningococcal hyperimmune horse serum, was evaluated for serogroup identification of Neisseria meningitidis. Four hundred meningococcal stains were serogrouped by ASA employing horse antise...

journal_title：Canadian journal of microbiology

authors： Ashton FE,Ryan A,Diena BB,Frasch CE

更新日期：1979-06-01 00:00:00

abstract：:Fecal coliforms (FC) counts were compared with Escherichia coli counts in differently contaminated freshwater samples (n = 166). FC were enumerated by plate count on triphenyl 2,3,5-tetrazolium chloride Tergitol medium. Escherichia coli were enumerated by the most probable number microplate method based on the detecti...

journal_title：Canadian journal of microbiology

authors： Garcia-Armisen T,Prats J,Servais P

更新日期：2007-06-01 00:00:00

abstract：:Environmental scanning electron microscopic observations of Postia placenta grown on a defined medium and on red spruce wood allowed for the examination of the hydrated sheath of P. placenta. In the wood environment, mature hyphae that were not adhering to the substrate were observed to have a mycofibrillar morphology...

journal_title：Canadian journal of microbiology

authors： Connolly JH,Chen Y,Jellison J

更新日期：1995-04-01 00:00:00

abstract：:Through genomic analysis of mucosa-associated Escherichia coli strains, we found a close genetic association among isolates from pediatric inflammatory bowel disease (IBD) patients. A specific E. coli pathovar, adherent-invasive E. coli (AIEC), was found in Crohn's disease (CD) adult patients - this pathovar has enhan...

journal_title：Canadian journal of microbiology

authors： Schippa S,Iebba V,Totino V,Santangelo F,Lepanto M,Alessandri C,Nuti F,Viola F,Di Nardo G,Cucchiara S,Longhi C,Conte MP

更新日期：2012-04-01 00:00:00

abstract：:A microplaque reduction assay for human and mouse interferons is described, using plastic disposable multicompartmental plates with flat-bottomed wells of 6 mm in diameter. The procedure is rapid and reproducible and lends itself to a considerable degree of automation. Its potential application in other areas of virol...

journal_title：Canadian journal of microbiology

authors： Campbell JB,Grunberger T,Kochman MA,White SL

更新日期：1975-08-01 00:00:00

abstract：:Methanol extracts were obtained from L. interrogans serovars icterohaemorrhagiae and canicola and L. biflexa serovar patoc. Human sera from 167 normal individuals and 40 patients with different infectious diseases tested by complement fixation tests showed negative reactions. Sera from 100 patients with a suspicion of...

journal_title：Canadian journal of microbiology

authors： Koury MC,Cisalpino EO,Rangel Hde A

更新日期：1991-06-01 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：: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

authors： Ishiguro EE

更新日期：1979-10-01 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：:The origin of the eukaryotic nucleus is difficult to reconstruct. While eukaryotic organelles (chloroplast, mitochondrion) are eubacterial endosymbionts, the source of nuclear genes has been obscured by multiple nucleotide substitutions. Using evolutionary parsimony, a newly developed rate-invariant treeing algorithm,...

journal_title：Canadian journal of microbiology

authors： Lake JA

更新日期：1989-01-01 00:00:00

abstract：:Twenty-six strains of group JK corynebacteria had the same colonial morphology and biological reactions as the biotypes of the biovars of Corynebacterium genitalium and C. pseudogenitalium. Therefore, group JK corynebacteria can be assigned to the biovars of C. genitalium or C. pseudogenitalium. Although the strains d...

journal_title：Canadian journal of microbiology

authors： Evangelista AT,Coppola KM,Furness G

更新日期：1984-08-01 00:00:00

abstract：:There are inherent weaknesses associated with currently used bacterial fecal pollution indicator systems. Fecal pollution indicator data would be more meaningful if supplemented with information relating to the occurrence of pathogens in recreational water. Through surveys of four bathing beaches on Lake Ontario, it w...

journal_title：Canadian journal of microbiology

authors： Sherry JP,Kuchma SR,Dutka BJ

更新日期：1979-09-01 00:00:00

abstract：:Staphylococcus aureus isolated from the cervix of an infertile woman was found to cause complete immobilization of human spermatozoa in vitro. Only the cell culture and cell-free supernatant showed immobilization activity, indicating that the sperm immobilization factor might be released extracellularly by the organis...

journal_title：Canadian journal of microbiology

authors： Prabha V,Gupta T,Kaur S,Kaur N,Kala S,Singh A

更新日期：2009-07-01 00:00:00

abstract：:The effects of seven thiophosphorus pesticides and their degradation products on estuarine ammonium oxidizers were examined. Using an axenic, closed-culture, high cell density assay, the pesticides caused little inhibition of ammonium oxidation. However, the degradation product of methyl parathion, p-aminophenol, sign...

journal_title：Canadian journal of microbiology

authors： Jones RD,Hood MA

更新日期：1980-11-01 00:00:00

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

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

更新日期：1995-07-01 00:00:00

abstract：:The susceptibility of Cephalosporium acremonium to selected amino acid analogues was markedly influenced by the carbon source used in the test media. Lysine hydroxamate, beta-hydroxy norvaline, and hexafluorovaline were toxic when tested with ribose, ribose or fructose, and ribose or galactose, respectively. In contra...

journal_title：Canadian journal of microbiology

authors： Mehta RJ,Nash CH

更新日期：1979-07-01 00:00:00

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

authors： Alford JS Jr

更新日期：1976-01-01 00:00:00

abstract：:An active in vitro protein-synthesizing system has been developed from Rhodospirillum rubrum grown under either photosynthetic or heterotrophic conditions. A protease activity has been found in both of these systems, and this activity can be readily inactivated by treating the cells with KCl and phenylmethyl sulfonylf...

journal_title：Canadian journal of microbiology

authors： Chow CT

更新日期：1976-02-01 00:00:00

abstract：:Aluminum (Al) toxicity is a major problem affecting soil fertility, microbial diversity, and nutrient uptake of plants. Rhizobia response and legume interaction under Al conditions are still unknown; it is important to understand how to develop and improve legume cultivation under Al stress. In this study, rhizobia re...

journal_title：Canadian journal of microbiology

authors： Artigas Ramírez MD,Silva JD,Ohkama-Ohtsu N,Yokoyama T

更新日期：2018-08-01 00:00:00

abstract：:Environmental factors influencing the occurrence and community structure of soil yeasts in forests are not well studied. There are few studies dedicated to Southern Hemisphere soil yeasts populations and even fewer focused on temperate forests influenced by volcanic activity. The present work aimed to study the ecolog...

journal_title：Canadian journal of microbiology

authors： Mestre MC,Fontenla S,Rosa CA

更新日期：2014-06-01 00:00:00

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

authors： Cheng KJ,Hironaka R,Costerton JW

更新日期：1976-05-01 00:00:00