Detection of Bacillus cereus virulence factors in commercial products of Bacillus thuringiensis and expression of diarrheal enterotoxins in a target insect.

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：:An intracellular invertase was induced in cultures of Clostridium pasteurianum utilizing sucrose as its carbon source for growth. This enzyme synthesis could be repressed by the addition of fructose of a sucrose-growing culture. In contrast, invertase activity was not affected by the addition of glucose to sucrose-gro...

journal_title：Canadian journal of microbiology

authors： Laishley EJ

更新日期：1975-11-01 00:00:00

abstract：:Pyrenocine A, a phytotoxin produced by Pyrenochaeta terrestris (Hansen) Gorenz, Walker and Larson, possesses general antibiotic activity against plants, fungi, and bacteria. Effective doses for 50% inhibition (ED50s) are 4 micrograms/mL for onion seedling elongation; 14, 20, 20, and 25 micrograms/mL for the germinatio...

journal_title：Canadian journal of microbiology

authors： Sparace SA,Reeleder RD,Khanizadeh S

更新日期：1987-04-01 00:00:00

abstract：:Natural populations of bacteria assoiciated with the slime on submerged surfaces in a mountain stream were examined by phase-contrast and electron microscopy. The slime contained large numbers of bacteria which were predominantly gram-negative as determined by their cell wall structure. Examination of the in situ dist...

journal_title：Canadian journal of microbiology

authors： Geesey GG,Richardson WT,Yeomans HG,Irvin RT,Costerton JW

更新日期：1977-12-01 00:00:00

abstract：:The rumen microbiota plays a major role in the metabolism and absorption of indigestible food sources. Xinjiang brown cattle (Bos taurus), Tarim red deer (Cervus elaphus yarkandensis), and Karakul sheep (Ovis aries) are important ruminant species for animal husbandry in the Tarim Basin. However, the microbiota and rum...

journal_title：Canadian journal of microbiology

authors： Qian W,Li Z,Ao W,Zhao G,Wu J,Li G

更新日期：2017-05-01 00:00:00

abstract：:Addition of Tween 80 to a 1.5% solution of beef extract was found to enhance the elution of bacteriophages adsorbed to electronegative filters. When reconcentration of the eluate was attempted by ammonium sulfate precipitation, a floating layer containing most of the viruses was formed. This floating layer can be obta...

journal_title：Canadian journal of microbiology

authors： Armon R,Arella M,Payment P

更新日期：1988-05-01 00:00:00

abstract：:Leptospira interrogans serotype pomona was isolated from the kidneys of a normal striped skunk (Mephitis mephitis hudsonicus) collected near Kindersley, Saskatchewan. Although there were no gross lesions, small foci of chronic interstitial nephritis were observed microscopically. This is the first reported isolation o...

journal_title：Canadian journal of microbiology

authors： Carpio M,Wobeser G,Iversen J

更新日期：1977-12-01 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：: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

authors： Allen PZ,Connelly MC,Apicella MA

更新日期：1980-04-01 00:00:00

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 correlation between the occurrence of indicator organisms and salmonellae in the same sample homogenate of various classes of dried foods was studied. In the first phase of the work involving 5837 samples, 1943 contained fecal coliforms and 100 contained Salmonella. Fecal coliforms were not detected in 53 of the S...

journal_title：Canadian journal of microbiology

authors： Silliker JH,Gabis DA

更新日期：1976-07-01 00:00:00

abstract：:Growth of Neisseria perflava, Neisseria cinerea, and Neisseria sicca strain Kirkland in media supplemented with sucrose (0.5 to 5.0% w/v) resulted in the formation of giant cells. Response to sucrose was specific in that a variety of other carbohydrates did not mediate giant cell formation. Giant cells appeared only u...

journal_title：Canadian journal of microbiology

authors： Johnson KG,McDonald IJ

更新日期：1976-03-01 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：: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：:Haemophilus paragallinarum secretes metalloproteases into different culture media lacking serum. Secreted proteins, concentrated by precipitation with 70% ammonium sulphate ((NH(4))(2)SO(4)) or methanol, displayed proteolytic activity at >100 kDa molecular mass in 10% polyacrylamide gels co-polymerized with porcine ge...

journal_title：Canadian journal of microbiology

authors： Rivero-García PC,Cruz CV,Alonso PS,Vaca S,Negrete-Abascal E

更新日期：2005-10-01 00:00:00

abstract：:Bacillus stearothermophilus NCA 2184 lost viability and subsequently released cytoplasmic components when suspended in 0.1 M tris(hydroxymethyl)aminomethane (Tris) buffer (pH 7.2) and incubated at 60 degrees C. Cell lysis was prevented by the addition of 10 mM CaCl2 to the Tris-buffer suspension. Cells which were incu...

journal_title：Canadian journal of microbiology

authors： Mosley GA,Card GL,Koostra WL

更新日期：1976-04-01 00:00:00

abstract：:Trace gas uptake by microorganisms controls the oxidative capacity of the troposphere, but little is known about how this important function is affected by changes in soil microbial diversity. This article bridges that knowledge gap by examining the response of the microbial community-level physiological profiles (CLP...

journal_title：Canadian journal of microbiology

authors： Saavedra-Lavoie J,de la Porte A,Piché-Choquette S,Guertin C,Constant P

更新日期：2020-04-01 00:00:00

abstract：:Uptake of amino acids by Bacteroides ruminicola was observed in cells grown in a complete defined medium, containing ammonia as the nitrogen source. A high rate of uptake occurred only in fresh medium, as an inhibitory substance, possibly acetate, apparently accumulated during growth. All amino acids except proline we...

journal_title：Canadian journal of microbiology

authors： Stevenson RM

更新日期：1979-10-01 00:00:00

abstract：:One of the important properties of probiotics is the ability to survive in the intestine. There have been few studies on the probiotic property of lactococci, since they are formally not considered to be natural inhabitants of the intestine. To evaluate lactococci as probiotic bacteria, we investigated their ability t...

journal_title：Canadian journal of microbiology

authors： Kimoto H,Nomura M,Kobayashi M,Mizumachi K,Okamoto T

更新日期：2003-11-01 00:00:00

abstract：:A bacteriocin, streptococcin sal-P, was isolated by freeze-thaw elution from cultures of Streptococcus salivarius strain P grown on tryptic soy agar plus 1% neopeptone. The inhibitor could also be extracted with either 7 M urea of 1 M NaCl from cells grown on this medium, but little activity was recovered from cells g...

journal_title：Canadian journal of microbiology

authors： Tagg JR,Russell C

更新日期：1981-09-01 00:00:00

abstract：:The introduction of the 7-valent pneumococcal vaccine (PCV7) in Canada was very effective in reducing invasive pneumococcal disease (IPD) in children; however, increases of non-PCV7 serotypes have subsequently offset some of these reductions. A 13-valent pneumococcal vaccine (PCV13) targeting additional serotypes was ...

journal_title：Canadian journal of microbiology

authors： Demczuk WH,Martin I,Griffith A,Lefebvre B,McGeer A,Lovgren M,Tyrrell GJ,Desai S,Sherrard L,Adam H,Gilmour M,Zhanel GG,Toronto Bacterial Diseases Network.,Canadian Public Health Laboratory Network.

更新日期：2013-12-01 00:00:00

abstract：:The cultural, morphological, and physiological properties of Thermomonospora fusca (strain 190Th) are described. Its physiological properties show that this species is primarily a carbohydrate-degrading actinomycete which can use a wide range of plant sugars and polymeric carbohydrates as sources of carbon and energy....

journal_title：Canadian journal of microbiology

authors： Crawford DL

更新日期：1975-11-01 00:00:00

abstract：:Clinical isolates of Staphylococcus aureus were found to exhibit strain-specific heterogeneity to the growth-enhancing effects of human urokinase (UK), a proteinase with plasminogen activator activity. Nine out of fourteen (64%) methicillin-sensitive strains of S. aureus were responsive to UK in "in vitro" cultures. I...

journal_title：Canadian journal of microbiology

authors： Hart DA,Louie T,Krulicki W,Reno C

更新日期：1996-10-01 00:00:00

abstract：:Boron (B) is toxic to living cells at levels above a certain threshold. We isolated several B-tolerant bacterial strains from soil samples and studied them for possible mechanisms of B tolerance. 16S rRNA gene sequencing and comparative phylogenetic analysis demonstrated that the isolates belong to the following 6 gen...

journal_title：Canadian journal of microbiology

authors： Ahmed I,Fujiwara T

更新日期：2010-01-01 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：: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：: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

authors： Barnet YM,Humphrey B

更新日期：1975-10-01 00:00:00

abstract：:Natural enrichments of magnetotactic bacteria were used to study the sites where heavy metals accumulate in uncultured bacteria. Most bacteria obtained by magnetic concentration from these enrichments contained, in addition to the magnetosomes, large phosphorus-rich granules in the cytoplasm. Metal (Zn, Mn, Sr, Cd, Al...

journal_title：Canadian journal of microbiology

authors： Keim CN,Lins U,Farina M

更新日期：2001-12-01 00:00:00

abstract：:Caulobacters are biofilm-forming members of the natural flora of soil and aquatic environments, which exhibit several characteristics that make them attractive for development of high surface area microbial bioreactors or biosensors. Although caulobacters are well characterized genetically, little is known about their...

journal_title：Canadian journal of microbiology

authors： Smit J,Sherwood CS,Turner RF

更新日期：2000-04-01 00:00:00

abstract：:Health effects associated with poor indoor air quality have created a need for accurate, reproducible methods of monitoring the microbiological content of indoor air. Improved methods of detection may allow researchers to clarify the effect of individual species present in the indoor environment on human health. This ...

journal_title：Canadian journal of microbiology

authors： MacNeil L,Kauri T,Robertson W

更新日期：1995-08-01 00:00:00