Thiobacillus acidophilus: a study of its presence in Thiobacillus ferrooxidans cultures.

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：:Cultures of Streptomyces peucetius often were observed to divert spontaneously from the production of anthracycline antibiotics to the excretion of acidic metabolites, whether grown in a defined medium or a nutrient-rich medium. The predominant excreted acidic metabolites were determined by high-performance liquid chr...

journal_title：Canadian journal of microbiology

authors： Dekleva ML,Strohl WR

更新日期：1987-12-01 00:00:00

abstract：:Aphanomyces astaci secondary cyst walls and walls of germinating spores were prepared by alkaline hydrolysis, autolysis, sonication, and enzymic degradation and were examined by shadow-casting and negative-staining techniques. The cyst wall consists of randomly oriented fibrils, about 3 nm in diameter. The fibrils are...

journal_title：Canadian journal of microbiology

authors： Nyhlén L,Unestam T

更新日期：1978-11-01 00:00:00

abstract：:The in situ degradation of the two nitramine explosives, hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) and octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine (HMX), was evaluated using a mixture of RDX and HMX, incubated anaerobically at 10 degrees C with marine sediment from a previous military dumping site of unexplod...

journal_title：Canadian journal of microbiology

authors： Zhao JS,Greer CW,Thiboutot S,Ampleman G,Hawari J

更新日期：2004-02-01 00:00:00

abstract：:Two molecular forms of alpha-galactosidase (EC 3.2.1.22) synthesized constitutively by Bacillus stearothermophilus, strain AT-7, have been purified. alpha-Galactosidase I (with the substrate p-nitrophenyl alpha-D-galactopyranoside (PNPG)) has a pH optimum of 6 and half-life at 65 degrees C of > 2 h at low protein conc...

journal_title：Canadian journal of microbiology

authors： Pederson DM,Goodman RE

更新日期：1980-08-01 00:00:00

abstract：:Lysis of mid-log phase cells of the Gram-positive bacterium, Corynebacterium sepedonicum, by a combination of lysozyme treatment and incubation with alkaline sodium dodecyl sulfate at 56 degrees C led to the recovery of a single plasmid. The plasmid was purified in CsCl density gradients, and its molecular weight esti...

journal_title：Canadian journal of microbiology

authors： Clark MC,Lawrence CH

更新日期：1986-08-01 00:00:00

abstract：:Epiphytic tracer bacteris (a Pseudomonas sp. and an Arthrobacter sp.) from soybean buds were introduced into open flowers of greenhouse-grown soybean plants. Of the 177 resulting pods cultured after surface disinfection, tracers were recovered from within 24. Seed from two of these pods also carried tracers. ...

journal_title：Canadian journal of microbiology

authors： Leben C

更新日期：1976-03-01 00:00:00

abstract：:Melanin biosynthesis in Verticillium dahliae Kleb, was studied with mutants deficient for normal black melanin or for production of microsclerotia. Seven genetically different mutants had apparent blocks in melanin biosynthesis. Four mutants (brm-1 to -4) produced brown microsclerotia and extruded pigments into media;...

journal_title：Canadian journal of microbiology

authors： Bell AA,Puhalla JE,Tolmsoff WJ,Stipanovic RD

更新日期：1976-06-01 00:00:00

abstract：:To determine the subcellular location of the Streptococcus mutans P1 protein C-terminal anchor, cell envelope fractionation experiments were conducted in combination with Western immunoblotting, using monoclonal antibody MAb 6-8C specific for an epitope that maps near the C terminus of P1 protein and also a polyclonal...

journal_title：Canadian journal of microbiology

authors： Homonylo-McGavin MK,Lee SF,Bowden GH

更新日期：1999-06-01 00:00:00

abstract：:The effect of fructans on the cultivable faecal community of Bio Breeding rats fed diets containing 5% (m/v) food-grade fructooligosaccharide (FOS) was investigated. Culturing of faecal material using chicory inulin as the sole carbohydrate source revealed the presence of a greater diversity of inulin-utilizing bacter...

journal_title：Canadian journal of microbiology

authors： Gourgue-Jeannot C,Kalmokoff ML,Kheradpir E,Kwan J,Lampi BJ,McAllister M,Brooks SP

更新日期：2006-10-01 00:00:00

abstract：:The application of crossed immunoelectrophoresis to the analysis of a reference cytoplasm and cell envelope preparation from Pasteurella multocida serotype 1 revealed antigenic complexity not previously found. At least 55 cytoplasmic and 19 cell envelope antigens were clearly distinguished. Variation of anticytoplasm ...

journal_title：Canadian journal of microbiology

authors： Bhasin JL,Lapointe-Shaw L

更新日期：1980-06-01 00:00:00

abstract：:The N5,N10-methylenetetrahydromethanopterin dehydrogenase from Methanobacterium thermoautotrophicum strain Marburg has been purified with reasonable yield and much higher specific activity than previously reported. For the first time it has been shown that both N5,N10-methylenetetrahydromethanopterin dehydrogenase and...

journal_title：Canadian journal of microbiology

authors： Mukhopadhyay B,Daniels L

更新日期：1989-04-01 00:00:00

abstract：:This study compared the recovery of Cryptosporidium oocysts and Giardia cysts ((oo)cysts) from raw waters using 4 different concentration-elution methods: flatbed membranes, FiltaMax foam, Envirochek HV capsules, and Hemoflow ultrafilters. The recovery efficiency of the combined immunomagnetic separation and staining ...

journal_title：Canadian journal of microbiology

authors： Ferguson C,Kaucner C,Krogh M,Deere D,Warnecke M

更新日期：2004-09-01 00:00:00

abstract：:Nonmotile and motility-altered mutants of Myxococcus xanthus have been obtained by the use of chemical mutagens, ultraviolet irradiation, and a procedure for selective spontaneous mutants. As judged by their behaviour on a variety of growth media, in both plate and slide culture, the mutants were divided into four gro...

journal_title：Canadian journal of microbiology

authors： MacRae TH,McCurdy HD

更新日期：1976-09-01 00:00:00

abstract：:A high molecular component of a saline extract derived from Listeria monocytogenes contained amino acids, carbohydrates, and phosphorus. The same fraction was capable of promoting both the in vitro mitogenic and adjuvant activities and the in vivo immunosuppressive activity displayed by the crude extract. The material...

journal_title：Canadian journal of microbiology

authors： Otokunefor TV,Galsworthy SB

更新日期：1982-12-01 00:00:00

abstract：:Nontypeable Haemophilus influenzae (NTHi) is an opportunistic pathogen associated with a range of infections, including various lower respiratory infections, otitis media, and conjunctivitis. There is some debate as to whether or not NTHi produces biofilms and, if so, whether or not this is relevant to pathogenesis. A...

journal_title：Canadian journal of microbiology

authors： Obaid NA,Jacobson GA,Tristram S

更新日期：2015-03-01 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：:Probiotics are usually isolated from the gastrointestinal tract of humans and animals. The search of probiotics in human milk is a recent field of research, as the existence of the human milk microbiome was discovered only about a decade ago. To our knowledge, no reports regarding the potential probiotic effect of bac...

journal_title：Canadian journal of microbiology

authors： Quilodrán-Vega SR,Villena J,Valdebenito J,Salas MJ,Parra C,Ruiz A,Kitazawa H,García A

更新日期：2016-06-01 00:00:00

abstract：:The rapid onset of resistance reduces the efficacy of most conventional antimicrobial drugs and is a general cause of concern for human well-being. Thus, there is great demand for a continuous supply of novel antibiotics to combat this problem. Bacteria-derived antimicrobial peptides (AMPs) have long been used as food...

journal_title：Canadian journal of microbiology

authors： Sumi CD,Yang BW,Yeo IC,Hahm YT

更新日期：2015-02-01 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：: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：:Isoquinoline is a nitrogen heterocyclic compound that is associated with coal- and oil-derived wastes. Four strains of bacteria able to degrade isoquinoline in pure culture were isolated from sites known to be contaminated with oil. Isoquinoline was used as the sole source of carbon and nitrogen by these isolates. Iso...

journal_title：Canadian journal of microbiology

authors： Aislabie J,Richards NK,Lyttle TC

更新日期：1994-07-01 00:00:00

abstract：:BaeR, a response regulator protein, takes part in multidrug efflux, bacterial virulence activity, and other biological functions. Recently, BaeR was shown to induce inflammatory responses by activating the mitogen-activated protein kinases (MAPKs). In this study, we investigated additional pathways used by BaeR to ind...

journal_title：Canadian journal of microbiology

authors： Lee SJ,Birhanu BT,Awji EG,Kim MH,Park JY,Suh JW,Park SC

更新日期：2016-09-01 00:00:00

abstract：:Legionella pneumophila grows in amoebae and has achieved the ability to grow at various temperatures, although the mechanisms controlling this ability remain poorly understood. The Icm/Dot type IVB secretion system is composed of more than 25 proteins and is known to be essential for intracellular growth. The role of...

journal_title：Canadian journal of microbiology

authors： Qin T,Iida K,Piao Z,Shiota S,Ren H,Shao Z,Yoshida S

更新日期：2012-04-01 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：:A 3.1-kb region of the bacteriophage D3 genome which contains the immunity functions has recently been sequenced (GenBank accession No. L22692). Sequence analysis indicated the presence of a putative repressor gene (c1) whose protein product functions to maintain the bacteriophage genome as a stably integrated prophag...

journal_title：Canadian journal of microbiology

authors： Farinha MA,Kropinski AM

更新日期：1997-03-01 00:00:00

abstract：:Degradation of purified rubella virus by heat treatment (37, 45, or 56 degrees C) revealed the following structures. The viral envelope, a modified cellular membrane, bears spherical subunits, 5-6 nm in diameter, hexamers, or pentamers. Two glycoproteins, VP-2 (50 000 daltons) and VP-3 (63 000 daltons), are associated...

journal_title：Canadian journal of microbiology

authors： Payment P,Ajdukovic D,Pavilanis V

更新日期：1975-05-01 00:00:00

abstract：:To determine the seroprevalence of Norwalk virus and whether Norwalk virus contributed to an observed increase in illness in tap water drinkers participating in a prospective epidemiological study, sera collected during the study were examined for changes in Norwalk virus antibody titer, using a specific enzyme immuno...

journal_title：Canadian journal of microbiology

authors： Payment P,Franco E,Fout GS

更新日期：1994-10-01 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：:The peptidoglycan of Escherichia coli K-12 strain AB264 was isolated by treating whole cells with sodium dodecyl sulfate and was purified by deoxyribonuclease, ribonuclease, and trypsin treatment. Like the peptidoglycan of Bacillus subtilis, this peptidoglycan proved able to bind substantial amounts of metallic ions f...

journal_title：Canadian journal of microbiology

authors： Hoyle BD,Beveridge TJ

更新日期：1984-02-01 00:00:00