abstract：:In this work, we assayed the ability of newly prepared indolizine derivates (epimers) 6C and 6A to inhibit the growth of Mycobacterium smegmatis and used them for resistance induction. 6A inhibited the growth of M. smegmatis at a concentration of 100 μg/mL. No inhibitory effect was observed in the presence of 6C. By i...

journal_title：Canadian journal of microbiology

authors： Olejníková P,Kurucová M,Švorc L,Marchalín Š

更新日期：2013-02-01 00:00:00

abstract：:This study aimed to examine aminoglycosides (AMGs) resistance mechanisms, including the AMG-modifying enzyme genes, mexXY, rplY, nuoG, and galU, in the Pseudomonas aeruginosa non-cystic fibrosis (CF) isolates in Thailand. One hundred P. aeruginosa isolates from non-CF patients were examined for susceptibility to AMGs ...

journal_title：Canadian journal of microbiology

authors： Poonsuk K,Tribuddharat C,Chuanchuen R

更新日期：2013-01-01 00:00:00

abstract：:Humicola lutea 103 is a copper-tolerant fungal strain able to grow in the presence of 300 μg·mL(-1) Cu(2+) under submerged cultivation. To prevent the consequences of copper overload, microorganisms have evolved molecular mechanisms that regulate its uptake, intracellular traffic, storage, and efflux. In spite of this...

journal_title：Canadian journal of microbiology

authors： Krumova ETs,Stoitsova SR,Paunova-Krasteva TS,Pashova SB,Angelova MB

更新日期：2012-12-01 00:00:00

abstract：:The aim of the present study was to explore a new approach based on the hemagglutination (HA) assay to understand the colonization ability of Shigella spp. To study colonization ability, an animal model of 4-day-old suckling mouse, was exploited. We characterized the HA activity of 48 Shigella strains, with erythroc...

journal_title：Canadian journal of microbiology

authors： Mitra S,Saha DR,Pal A,Niyogi SK,Mitra U,Koley H

更新日期：2012-10-01 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：:Vaccination is the most promising strategy to reduce the incidence of pneumococcal infection. Although there are vaccines available, all of them are based on polysaccharide antigens (conjugated or not). In addition to their high cost, those vaccines do not cover all serotypes. To overcome these hindrances, we evaluate...

journal_title：Canadian journal of microbiology

authors： Araújo HF,Campos PC,Camargo DR,Pereira FN,Samuel ML,Oliveira MA,Fortes-Dias CL,Leclercq SY

更新日期：2012-09-01 00:00:00

abstract：:A baseline serotype distribution was established by age and region for 2058 invasive Streptococcus pneumoniae isolates collected during the implementation period of the 13-valent pneumococcal conjugate vaccine (PCV13) program in many parts of Canada in 2010. Serotypes 19A, 7F, and 3 were the most prevalent in all ag...

journal_title：Canadian journal of microbiology

authors： Demczuk WH,Martin I,Griffith A,Lefebvre B,McGeer A,Shane A,Zhanel GG,Tyrrell GJ,Gilmour MW,Toronto Invasive Bacterial Diseases Network.,Canadian Public Health Laboratory Network.

更新日期：2012-08-01 00:00:00

abstract：:Bacteriophages are associated with reduced fecal shedding of Shiga-toxin-producing Escherichia coli O157:H7 (STEC O157:H7) in cattle. Four phages exhibiting activity against 12 of 14 STEC O157:H7 strains, representing 11 common phage types, were isolated. Phages did not lyse non-O157 E. coli, with 11 of the 12 STEC st...

journal_title：Canadian journal of microbiology

authors： Niu YD,Stanford K,Ackermann HW,McAllister TA

更新日期：2012-07-01 00:00:00

abstract：:Plant-microbial interactions have been well studied because of the ecological importance of such relationships in aquatic systems. However, general knowledge regarding the composition of these biofilm communities is still evolving, partly as a result of several confounding factors that are attributable to plant host p...

journal_title：Canadian journal of microbiology

authors： Olapade OA,Pung K

更新日期：2012-06-01 00:00:00

abstract：:Mycoplasma pneumoniae is an important causative agent of atypical pneumonia. This study was to determine the ability of a DNA expression vector, which encodes the carboxy terminal region of the M. pneumoniae P1 protein (P1C), to induce humoral and cellular immune responses and to protect against M. pneumoniae infecti...

journal_title：Canadian journal of microbiology

authors： Zhu C,Wu Y,Chen S,Yu M,Zeng Y,You X,Xiao J,Wang S

更新日期：2012-05-01 00:00:00

abstract：:The aim of the present study was to examine soil samples from various vegetation zones in terms of physicochemical properties, microbial communities, and isolation and identification (by polymerase chain reaction and transmission electron microscopy) of bacteria producing poly-β-hydroxybutyrates (PHBs). Soil samples w...

journal_title：Canadian journal of microbiology

authors： Carpa R,Butiuc-Keul A,Lupan I,Barbu-Tudoran L,Muntean V,Dobrotă C

更新日期：2012-05-01 00:00:00

abstract：:Most prokaryotic chromosomes contain a number of toxin-antitoxin (TA) modules consisting of a pair of genes that encode 2 components, a stable toxin and its cognate labile antitoxin. TA systems are also known as addiction modules, since the cells become "addicted" to the short-lived antitoxin product (the unstable ant...

journal_title：Canadian journal of microbiology

authors： Syed MA,Lévesque CM

更新日期：2012-05-01 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：: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：:Urinary tract infections are common. Few published studies have demonstrated the change in Escherichia coli urinary isolate antimicrobial susceptibility over time within a given area and (or) population. The purpose of this study was to evaluate the change in susceptibility of E. coli clinical isolates obtained from u...

journal_title：Canadian journal of microbiology

authors： Walkty A,Lagacé-Wiens PR,Karlowsky JA,Hoban DJ,Manickam K,Adam H,Pieroni P,Alfa M

更新日期：2012-03-01 00:00:00

abstract：:The aim of this study was to unravel, by focusing on cell surface properties, the underlying virulence factors contributing to the difference in the pathogenicity observed in two Acinetobacter baumannii strains isolated from the same patient. The two strains were phenotypically different: (i) a mucoid strain (AB-M),...

journal_title：Canadian journal of microbiology

authors： Kempf M,Eveillard M,Deshayes C,Ghamrawi S,Lefrançois C,Georgeault S,Bastiat G,Seifert H,Joly-Guillou ML

更新日期：2012-03-01 00:00:00

abstract：:Mycobacterium sp. strain KMS utilizes pyrene, a high-molecular weight polycyclic aromatic hydrocarbon (PAH), as a sole carbon source. Bioinformatic analysis of the genome of isolate KMS predicted 25 genes with the potential to encode 17 pyrene-induced proteins identified by proteomics; these genes were clustered on b...

journal_title：Canadian journal of microbiology

authors： Zhang C,Anderson AJ

更新日期：2012-01-01 00:00:00

abstract：:Four phages isolated from cattle and poultry feces were analyzed for their ability to lyse Salmonella serotypes and Escherichia coli O157:H7. The phage one-step growth curves, morphology, and genetic characteristics were determined. All phages showed a lytic effect on various Salmonella serotypes and E. coli O157:H7, ...

journal_title：Canadian journal of microbiology

authors： López-Cuevas O,Castro-Del Campo N,León-Félix J,González-Robles A,Chaidez C

更新日期：2011-12-01 00:00:00

abstract：:An alginate lyase gene of a newly isolated Pseudomonas sp. strain KS-408 was cloned by using PCR with the specific primers designed from homologous nucleotide sequences. A partial protein sequence of KS-408 alginate lyase was homology-modeled on the basis of the crystal structure of A1-III alginate lyase from Sphingom...

journal_title：Canadian journal of microbiology

authors： Kam N,Park YJ,Lee EY,Kim HS

更新日期：2011-12-01 00:00:00

abstract：:Human astrovirus (HAstV) was an important cause of viral gastroenteritis in infants in Wuhan city based on our previous study. The aim of the study was to investigate the nature of HAstV infection in Wuhan, People's Republic of China, especially in adults. Stool specimens were collected from 361 children and 301 adult...

journal_title：Canadian journal of microbiology

authors： Wang F,Wang YH,Peng JS,Zhou X,Tang L,Kobayashi N,Hu Q,Zhou DJ,Huang HJ,Liu MQ

更新日期：2011-11-01 00:00:00

abstract：:Pinus monticola antimicrobial peptide 1 (Pm-AMP1) was expressed and purified from bacterial cell lysate and its identity and purity confirmed by Western blot analysis using the Pm-AMP1 antibody. Application of Pm-AMP1 resulted in visible hyphal growth inhibition of Cronartium ribicola , Phellinus sulphurascens , O...

journal_title：Canadian journal of microbiology

authors： Zamany A,Liu JJ,Ekramoddoullah A,Sniezko R

更新日期：2011-08-01 00:00:00

abstract：:In this work, we disrupted one of three putative phosphatidylinositol phospholipase C genes of Aspergillus nidulans and studied its effect on carbon source sensing linked to vegetative mitotic nuclear division. We showed that glucose does not affect nuclear division rates during early vegetative conidial germination (...

journal_title：Canadian journal of microbiology

authors： Vanzela AP,Said S,Prade RA

更新日期：2011-07-01 00:00:00

abstract：:Phytopathogenic spiroplasmas can multiply in vascular plants and insects. A deeper understanding of this dual-host life could be furthered through the identification by random mutagenesis of spiroplasma genes required. The ability of the EZ::TN™ Tnp transposome™ system to create random insertional mutations i...

journal_title：Canadian journal of microbiology

authors： Mutaqin K,Comer JL,Wayadande AC,Melcher U,Fletcher J

更新日期：2011-06-01 00:00:00

abstract：:The natural reservoirs and biological characteristics of pathogenic populations of both subspecies of Photobacterium damselae in aquatic habitants remain unclear because of difficulties in obtaining pathogenic strains from the environment. In the present study, we assessed the occurrence of Photobacterium damselae sub...

journal_title：Canadian journal of microbiology

authors： Serracca L,Ercolini C,Rossini I,Battistini R,Giorgi I,Prearo M

更新日期：2011-05-01 00:00:00

abstract：:Yersinia pestis is a bacterium that is transmitted between fleas, which have a body temperature of 26 °C, and mammalian hosts, which have a body temperature of 37 °C. To adapt to the temperature shift, phenotype variations, including virulence, occur. In this study, an antigen microarray including 218 proteins of Y. p...

journal_title：Canadian journal of microbiology

authors： Li B,Tan Y,Guo J,Cui B,Wang Z,Wang H,Zhou L,Guo Z,Zhu Z,Du Z,Yang R

更新日期：2011-04-01 00:00:00

abstract：:Photorhabdus temperata, an insect pathogen and nematode symbiont, is motile in liquid medium by swimming. We found that P. temperata was capable of surface movement, termed swarming behavior. Several lines of evidence indicate that P. temperata use the same flagella for both swimming and swarming motility. Both motili...

journal_title：Canadian journal of microbiology

authors： Michaels B,Tisa LS

更新日期：2011-03-01 00:00:00

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

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

更新日期：2011-02-01 00:00:00

abstract：:Shiga toxins produced by Escherichia coli O157:H7 cause a wide spectrum of enteric diseases, such as lethal hemorrhagic colitis and hemolytic uremic syndrome. In this study, the B subunit protein of Shiga toxin type 1 (Stx1) was produced in the E. coli system, was further purified by Ni-column Affinity Chromatography ...

journal_title：Canadian journal of microbiology

authors： Wang Q,Hou XJ,Cai K,Li T,Liu YN,Tu W,Xiao L,Bao SZ,Shi J,Gao X,Liu H,Tian RM,Wang H

更新日期：2010-12-01 00:00:00

abstract：:Three composts (Ball, dairy, and greenhouse) were tested for the ability to suppress the development of Fusarium root and stem rot (caused by Fusarium oxysporum f. sp. radicis-cucumerinum) on greenhouse cucumber. Dairy and greenhouse composts significantly reduced disease severity (P = 0.05), while Ball compost had no...

journal_title：Canadian journal of microbiology

authors： Bradley GG,Punja ZK

更新日期：2010-11-01 00:00:00

abstract：:Environmentally compatible control measures are needed for suppression of Phytophthora capsici on pepper. Twenty-three isolates of Trichoderma were screened for suppression of a mixture of 4 genetically distinct isolates of this pathogen on bell pepper (Capsicum anuum) in greenhouse pot assays. Of these 23 isolates, G...

journal_title：Canadian journal of microbiology

authors： Roberts DP,Maul JE,McKenna LF,Emche SE,Meyer SL,Collins RT,Bowers JH

更新日期：2010-10-01 00:00:00

abstract：:The presence of any Listeria species in food may be an indicator of poor hygiene in food processing facilities. The biochemical identification of Listeria species is laborious and time consuming. Therefore, the development of novel identification methods that are rapid and simple to perform would be an asset. In this ...

journal_title：Canadian journal of microbiology

authors： Wang J,Yamada S,Ohashi E

更新日期：2010-08-01 00:00:00

abstract：:In an effort to reduce human exposure to adenoviruses through drinking water, we determined the effectiveness of sequential disinfection with an alternative ultraviolet (UV) technology (medium-pressure (MP) UV) and monochloramine. The results of this study showed that MP UV was much more effective than traditional UV ...

journal_title：Canadian journal of microbiology

authors： Shin GA,Lee JK

更新日期：2010-07-01 00:00:00

abstract：:Fermentation properties under the control of multiple genes are difficult to alter with traditional methods in Saccharomyces cerevisiae. Here, a novel genome engineering approach is developed to improve ethanol production in very high gravity fermentation with 300 g/L glucose as the carbon source. This strategy involv...

journal_title：Canadian journal of microbiology

authors： Hou L,Cao X,Wang C

更新日期：2010-06-01 00:00:00

abstract：:In a previous study it was shown that the number of wood-inhabiting bacteria was drastically reduced after colonization of beech (Fagus sylvatica) wood blocks by the white-rot fungus Hypholoma fasciculare, or sulfur tuft (Folman et al. 2008). Here we report on the mechanisms of this fungal-induced antibacterial activi...

journal_title：Canadian journal of microbiology

authors： de Boer W,Folman LB,Gunnewiek PJ,Svensson T,Bastviken D,Oberg G,del Rio JC,Boddy L

更新日期：2010-05-01 00:00:00

abstract：:Bacterial culture based on the use of plate media is an effective method for investigating bacterial populations in the environment. To improve the culturability of bacteria from freshwater lakes, we developed a new medium, FW70, which contains sodium pyruvate, casamino acids, and lake water and is solidified using ge...

journal_title：Canadian journal of microbiology

authors： Imazaki I,Kobori Y

更新日期：2010-04-01 00:00:00

abstract：:Arsenic hyperaccumulator fern Pteris vittata L. produces large amounts of root exudates that are hypothesized to solubilize arsenic and maintain a unique rhizosphere microbial community. Total heterotrophic counts on rich or defined media supplemented with up to 400 mmol/L of arsenate showed a diverse arsenate-resista...

journal_title：Canadian journal of microbiology

authors： Huang A,Teplitski M,Rathinasabapathi B,Ma L

更新日期：2010-03-01 00:00:00

abstract：:Corynebacterium glutamicum, a gram-positive bacterium, has been widely used for industrial amino acid production. Corynebacterium glutamicum his genes are located and transcribed in two unlinked loci, hisEG and hisDCB-orf1-orf2-hisHA-impA-hisFI. The latter his operon starts the transcription at the C residue localized...

journal_title：Canadian journal of microbiology

authors： Jung S,Chun JY,Yim SH,Lee SS,Cheon CI,Song E,Lee MS

更新日期：2010-02-01 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：: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

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

abstract：:Vibrio cholerae activates proinflammatory response in cultured intestinal epithelial cells. In this study, we demonstrate that V. cholerae O395 infection of intestinal epithelial cells results in the activation of Akt. Inhibition of Akt significantly decreases IL-1alpha, IL-6, and TNF-alpha production in V. cholerae i...

journal_title：Canadian journal of microbiology

authors： Bandyopadhaya A,Bhowmick S,Chaudhuri K

更新日期：2009-11-01 00:00:00