Factors affecting rate of methane formation from acetic acid by enriched methanogenic cultures.

abstract：:In mycetomes of leafhoppers, Helochara communis, ultrastructural and histochemical studies revealed that spheroplast symbiotes (t-symbiotes) were converted to 'a-symbiotes' (so-called), with apparent loss of DNA--a phenomenon reminiscent of rhizobium-bacteroid conversion in certain legume nodules. Additional t-symbiot...

journal_title：Canadian journal of microbiology

authors： Chang KP,Musgrave AJ

更新日期：1975-02-01 00:00:00

abstract：:In the dairy industry, bacterial contaminants persist on equipment surfaces due to spore and biofilm formation. These are involved in cross-contamination problems that affect the quality of processed products and limit their life. The pasteurization process, in which milk is submitted to moderate heat treatment, is in...

journal_title：Canadian journal of microbiology

authors： Malek F

更新日期：2019-06-01 00:00:00

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

authors： Upadhyay RS,Visintin L,Jayaswal RK

更新日期：1991-11-01 00:00:00

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

authors： Casida LE Jr,Liu KC

更新日期：1979-06-01 00:00:00

abstract：:A mesophilic anaerobe, a member of the Bacteroidaceae family (NRC2248), isolated from a cellulose-enrichment culture, digested untreated Whatman cellulose powder and HCl-treated cotton battings while producing hydrogen, carbon dioxide, cellobiose, glucose, and acetic acid as the sole volatile acid. This organism also ...

journal_title：Canadian journal of microbiology

authors： Saddler JN,Khan AW

更新日期：1979-12-01 00:00:00

abstract：:We have characterized two mutants of Rhizobium meliloti L5-30 obtained by random mutagenesis using Mu-lacZ that were defective in transport of C4-dicarboxylic acids. These mutants induced ineffective nodules on alfalfa. Mutations in the two strains appeared to be located in a dctA gene. Levels of dctA gene expression ...

journal_title：Canadian journal of microbiology

authors： Batista S,Castro S,Aguilar OM,Martínez-Drets G

更新日期：1992-01-01 00:00:00

abstract：:Three isolates, a Pseudomonas sp., Bacillus sp., and Arthrobacter sp., which had been isolated from a meadow soil at Devon Island, Canada, were subjected to freezing and thawing at low rates under various conditions. When cells were frozen in sand or soil, survival was dependent on moisture level, storage time, and th...

journal_title：Canadian journal of microbiology

authors： Nelson LM,Parkinson D

更新日期：1978-12-01 00:00:00

abstract：:Species of Enterobacter and Serratia were examined for deoxyribonucleic acid relatedness to Klebsielleae, to atypical erwiniae, and to other members of Enterobacteriaceae. Deoxyribonucleic acid hybridization and then hydroxyapatite chromatography was the technique used to assess relatedness. Strains of Enterobacter cl...

journal_title：Canadian journal of microbiology

authors： Steigerwalt AG,Fanning GR,Fife-Asbury MA,Brenner DJ

更新日期：1976-02-01 00:00:00

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

authors： Quan AL,Sippel JE

更新日期：1979-08-01 00:00:00

abstract：:Two new yeast species were isolated from flowers of Hibiscus species in Eastern and Northern Australia. Kodamaea kakaduensis is heterothallic, haploid, and similar to other Kodamaea species and to Candida restingae. Buds are often produced on short protuberances, and a true mycelium is formed. The new species differs ...

journal_title：Canadian journal of microbiology

authors： Lachance MA,Bowles JM,Starmer WT,Barker JS

更新日期：1999-02-01 00:00:00

abstract：:The activities of isocitrate lyase, esterase, and lipase by the psychrotrophic Acinetobacter sp. strain HH1-1 were monitored during incubation at 25 degreesC, 5 degreesC, and after a 25 degreesC to 5 degreesC down shift in growth temperature. During growth at 25 degreesC, isocitrate lyase activity was detected in cell...

journal_title：Canadian journal of microbiology

authors： Barbaro SE,Trevors JT,Inniss WE

更新日期：2001-03-01 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：:Escherichia coli is capable of producing several virulence factors involved in the pathophysiology of bovine mastitis. Cell surface structures such as flagella, pili, and other outer membrane adhesins are considered essential for biofilm formation on abiotic surfaces. The aim of this study was characterize the molecul...

journal_title：Canadian journal of microbiology

authors： Silva VO,Espeschit IF,Moreira MA

更新日期：2013-05-01 00:00:00

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

authors： Gauvreau D,Waring MJ

更新日期：1984-04-01 00:00:00

abstract：:The isolation of 12 strains of cellulolytic fungi from the rumen of a roughage-fed steer is described. These represented three different genera, including one new genus and species (Orpinomyces bovis). The organisms were indistinguishable on the basis of fermentation products from cellulose, and their fermentation pat...

journal_title：Canadian journal of microbiology

authors： Kudo H,Jakober KD,Phillippe RC,Cheng KJ,Barr DJ,Costerton JW

更新日期：1990-07-01 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：: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：:In Japan, antimicrobial agent therapy for patients with diarrhea due to enterovirulent organisms including enterohemorrhagic Escherichia coli (EHEC) is common, and norfloxacin (NFLX), fosfomycin, and kanamycin are recommended for EHEC treatment by the Japanese Ministry of Health and Welfare. The aim of this study was ...

journal_title：Canadian journal of microbiology

authors： Yoh M,Frimpong EK,Voravuthikunchai SP,Honda T

更新日期：1999-09-01 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：:The effects of pressurized CO2 on the survival of Escherichia coli and the mechanism of cell inactivation were studied. Bacterial cultures were inoculated in nutrient broth and incubated at 30 degrees C for 18 h. Exposure of the cells to CO2 under pressures ranging from 2.5 to 25 MPa and at temperatures between 8 and ...

journal_title：Canadian journal of microbiology

authors： Oulé MK,Tano K,Bernier AM,Arul J

更新日期：2006-12-01 00:00:00

abstract：:In this study, 16S rRNA gene primers were designed to complement the suite of already available PCR primers for the detection of different methanogens involved in biogas production through anaerobic digestion by SYBR Green real-time PCR. Primers designed for use in TaqMan real-time PCR for the organisms Methanosaeta, ...

journal_title：Canadian journal of microbiology

authors： Franke-Whittle IH,Goberna M,Insam H

更新日期：2009-05-01 00:00:00

abstract：:Absorption of 14C-labelled poliovirus-2 to sedimentable solids of primary sludge samples collected from a secondary treatment facility during a 6-month period averaged 94%; for anaerobically digested sludge, 99%. The extent of virus adsorption was influenced by the amount of solids. Maximal adsorption occurred at or a...

journal_title：Canadian journal of microbiology

authors： Lewis MA,Nath MW,Johnson JC

更新日期：1983-12-01 00:00:00

abstract：:Bifidobacteria are generally acknowledged as major gut microflora used as probiotics, which promote human health. In this study, the effects of the administration of Bifidobacterim bifidum on modulating gastrointestinal (GI) tract microflora, acid and bile resistance, and physiological indices in BALB/c mice were inve...

journal_title：Canadian journal of microbiology

authors： Wang BG,Xu HB,Wei H,Zeng ZL,Xu F

更新日期：2015-02-01 00:00:00

abstract：:Candida albicans and Saccharomyces cerevisiae cells were examined by scanning scanning electron microscopy before and after extraction of the mannans of the cell wall. The surfaces of control cells were smooth; after mannan extraction they were rough and showed erosions which were particularly striking within the area...

journal_title：Canadian journal of microbiology

authors： Koch Y,Rademacher KH

更新日期：1980-08-01 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：:The deoxyribonucleic acid (DNA) of 36 isolates of Caryophanon latum and 3 isolates designated Caryophanon tenue, obtained from geographically diverse regions, has been examined for guanine plus cytosine (mol % G+C) base composition, genome size, and for relative reassociation levels. The isolates were found to be homo...

journal_title：Canadian journal of microbiology

authors： Adcock KA,Seidler RJ,Trentini WC

更新日期：1976-09-01 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：:Two bacterial species, Gram-negative Escherichia coli and Gram-positive Bacillus subtilis, were exposed to different auxins to examine possible effects of these substances on bacterial stress tolerance. Bacterial resistance to UV irradiation, heat shock, and streptomycin was assessed with and without previous exposure...

journal_title：Canadian journal of microbiology

authors： Repar J,Šućurović S,Zahradka K,Zahradka D,Ćurković-Perica M

更新日期：2013-11-01 00:00:00

abstract：:Rabbit antisera prepared to meningococcal serogroups Y and W135 strains were compared with horse antisera using the antiserum agar method (ASA) for the serogroup identification of Neisseria meningitidis. Thirty-seven group Y strains formed immunoprecipitates with the Y rabbit serum only, whereas the same Y strains for...

journal_title：Canadian journal of microbiology

authors： Ashton FE,Ryan A,Diena BB

更新日期：1980-05-01 00:00:00

abstract：:A moderately halophilic Acinetobacter sp., capable of producing dextrinogenic amylase, was isolated from sea-sands. Maximum enzyme production was obtained when the bacterium was cultivated aerobically in media containing 1 to 2M NaCl or 1M KCl. Two kinds of amylase, amylases I and II were purified from the culture fil...

journal_title：Canadian journal of microbiology

authors： Onishi H,Hidaka O

更新日期：1978-09-01 00:00:00