Abstract:
:The suitability of two types of membrane filters for scanning and transmission electron-microscopical examination of chlamydospores formed from macroconidia of Fusarium solani from soil was tested. An improved method to incubate propagules in soil and to collect them free from soil particles for electron-microscopical observations is described. Best results were obtained if macroconidia were incubated in soil between two Nucleopore membrane filters. Both chlamydospore morphology and lysis, however, were affected to some extent in comparison with that on single membranes. This is probably due to a selective effect on the microflora colonizing the chlamydospores.
journal_name
Can J Microbioljournal_title
Canadian journal of microbiologyauthors
Van Eck WHdoi
10.1139/m76-239subject
Has Abstractpub_date
1976-11-01 00:00:00pages
1628-33issue
11eissn
0008-4166issn
1480-3275journal_volume
22pub_type
杂志文章abstract::A total of 230 strains of metal-tolerant bacteria from water and sediment samples collected in Chesapeake Bay were isolated on a medium containing cobalt, lead, mercury, or molybdenum. In addition, a set of 71 cultures were simultaneously isolated on glucose tryptone yeast extract agar medium without metals. Twenty-th...
journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:10.1139/m77-212
更新日期:1977-10-01 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
pub_type: 杂志文章
doi:10.1139/cjm-2012-0465
更新日期:2013-01-01 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
pub_type: 杂志文章
doi:10.1139/m76-195
更新日期:1976-09-01 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
pub_type: 杂志文章
doi:10.1139/m91-152
更新日期:1991-11-01 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
pub_type: 杂志文章
doi:10.1139/m89-077
更新日期:1989-04-01 00:00:00
abstract::Purification and chemical characterization of an immunosuppressive exopolysaccharide from Capnocytophaga ochracea strain 25 are described. This polysaccharide was extracted from spent culture medium by cold ethanol precipitation. Purification was accomplished by trichloroacetic acid and pronase treatments in combinati...
journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:10.1139/m85-001
更新日期:1985-01-01 00:00:00
abstract::In the present study, the effect of temperature and water activity on fungal growth and ochratoxin production on coffee-based medium was assessed. Optimal growth of three Aspergillus strains was observed in the same ecological conditions, namely 30 degrees C and 0.99 water activity. Maximal daily growth is 11.2, 6.92,...
journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:10.1139/W06-143
更新日期:2007-07-01 00:00:00
abstract::Various soil fungi were tested for their capacity to degrade the insecticide [14C]photodieldrin. Of nine species investigated, Trichoderma viride was the only one which degraded the insecticide to an appreciable extent into water-soluble, non-insecticidal compounds within 4-5 weeks. These products amounted to 32-41% o...
journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:10.1139/m76-198
更新日期:1976-09-01 00:00:00
abstract::Eight murine monoclonal antibodies (MAbs) against staphylococcal enterotoxin D (SED) were obtained by fusion of myeloma cells with mouse spleen cells immunized with SED only or a combination of SED and either enterotoxin A (SEA) or enterotoxin E (SEE). When only SED was used as an immunogen, six MAbs were specific for...
journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:10.1139/m91-099
更新日期:1991-08-01 00:00:00
abstract::This research validates a novel approach for source tracking based on denaturing gradient gel electrophoresis (DGGE) analysis of DNA extracted from Escherichia coli isolates. Escherichia coli from different animal sources and from river samples upstream from, at, and downstream of a combined sewer overflow were subjec...
journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:10.1139/W07-083
更新日期:2007-10-01 00:00:00
abstract::Ten aspergilli (five each from marine and terrestrial habitats) were screened for siderophore production. All test isolates produced siderophores as indicated by a positive reaction in the FeCl(3) test, chrome azurol sulphonate assay, and chrome azurol sulphonate agar plate test. Further, the test isolates were compar...
journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:10.1139/w06-012
更新日期:2006-06-01 00:00:00
abstract::The Bacillus subtilis glutamyl-tRNA synthetase (GluRS), encoded by the gltX gene, aminoacylates its homologous tRNA(Glu) and tRNA(Gln) with glutamate. This gene was cloned with its sigma A promoter and a downstream region including a rho-independent terminator in the shuttle vector pRB394 for Escherichia coli and B. s...
journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:
更新日期:1998-04-01 00:00:00
abstract::To screen, isolate, and characterize bacterial populations producing microcin J25, we report here two rapid, reliable, and sensitive methods, using polymerase chain reaction and colony blot hybridization with a digoxigenin-labelled probe. A sample of 26 Escherichia coli strains isolated from poultry intestinal content...
journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:
更新日期:2001-09-01 00:00:00
abstract::A dairy product processing plant was studied for 2.5 years to examine contamination with Staphylococcus aureus and try to correlate the source of contamination. Cultures were submitted to an antibiotic susceptibility test (AST) and characterised by Pulsed-field Gel Electrophoresis (PFGE) analysis. Results showed that ...
journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:10.1139/w00-111
更新日期:2000-12-01 00:00:00
abstract::Exogenous nucleotides were found to protect mammalian cells from the lethal effects of diphtheria toxin. Protective potency of a given nucleotide was base specific and phosphate chain length dependent. Full expression of protective potency required an intact nucleotide, but the effect did not appear to be mediated by ...
journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:10.1139/m79-046
更新日期:1979-03-01 00:00:00
abstract::Eight Enterococcus faecium strains isolated from ewe milk and artisanal cheese from northwest Argentina were screened for biotechnological properties relevant to flavour development. The API ZYM test showed absence of proteases, presence of high amounts of peptidases, and high esterase-lipase activities. Low extracell...
journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:10.1139/w05-136
更新日期:2006-03-01 00:00:00
abstract::Three strains, Rhodotorula rubra, Rhodotorula glutinis, and Candida zeylanoides, isolated from fish, were tested for the expression of putative tissue colonization factors. All strains were able to bind collagen type I, fibronectin, and laminin to various degrees after growing on various solid and broth media, while t...
journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:10.1139/m93-171
更新日期:1993-12-01 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
pub_type: 杂志文章
doi:10.1139/w2012-001
更新日期:2012-03-01 00:00:00
abstract::The effects of selected culture conditions on production of Shiga-like toxin-II variant by an edema disease strain of Escherichia coli (412) and E. coli TB1 (pCG6) containing the cloned genes for Shiga-like toxin-II variant were examined. Incubation time, culture media, incubation temperature, starting pH of the cultu...
journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:10.1139/m89-100
更新日期:1989-06-01 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
pub_type: 杂志文章
doi:10.1139/w11-131
更新日期:2012-03-01 00:00:00
abstract::Three composts were tested for their ability to suppress root and stem rot caused by the soil borne fungal pathogen Fusarium oxysporum f. sp. radicis-cucumerinum (FORC) on cucumber. Two of the composts were prepared from separated dairy solids either by windrow (WDS) or vermicomposting (VMC) while the third, obtained ...
journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:10.1139/w00-082
更新日期:2000-11-01 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
pub_type: 杂志文章
doi:10.1139/m78-177
更新日期:1978-09-01 00:00:00
abstract::A rolling-circle amplification (RCA) method with padlock probes targeted on EF-1α regions was developed for rapid detection of apple bull's-eye rot pathogens, including Neofabraea malicorticis, N. perennans, N. kienholzii, and N. vagabunda (synonym: N. alba). Four padlock probes (PLP-Nm, PLP-Np, PLP-Nk, and PLP-Nv) we...
journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:10.1139/cjm-2017-0448
更新日期:2018-01-01 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
pub_type: 杂志文章
doi:10.1139/w05-067
更新日期:2005-10-01 00:00:00
abstract::The attachment of Bradyrhizobium sp. (Lupinus) strain MSDJ718 to excised roots of white lupin was examined. Maximal attachment occurred at early to middle log phases of bacterial growth. This binding was pH dependent, with an optimal value reached at 6.6. Irrespective of the culture age, the attachment was strongly af...
journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:10.1139/m96-035
更新日期:1996-03-01 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
pub_type: 杂志文章
doi:10.1139/w2012-011
更新日期:2012-04-01 00:00:00
abstract::Pseudomonas aeruginosa ATCC 9027 grew on 0.5% (v/v) hexadecane as a sole carbon source in a chemically defined medium which required the addition of Fe3+ and Ca2+. There was a variable and extended lag period before an active growth rate was attained. Visible light microscopic evidence revealed that the bacteria did n...
journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:10.1139/m86-049
更新日期:1986-03-01 00:00:00
abstract::The goal of this study was to evaluate the antibiofilm and antimicrobial activities of Bacoside A, a formulation of phytochemicals from Bacopa monnieri, against Staphylococcus aureus and Pseudomonas aeruginosa, which are known to form biofilms as one of their virulence traits. The antimicrobial effects of Bacoside A w...
journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:10.1139/cjm-2016-0365
更新日期:2017-02-01 00:00:00
abstract::Unicellular green alga represents not only a convenient model for its biochemical and physiological studies but also a sensitive system to test the effects of various environmental factors. Algae cells of two strains, SA-3 strain (exsymbiotic from Paramecium bursaria) and Chlorella vulgaris c-27, were asynchronously c...
journal_title:Canadian journal of microbiology
pub_type: 杂志文章
doi:10.1139/w01-143
更新日期:2002-02-01 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
pub_type: 杂志文章
doi:10.1139/m92-008
更新日期:1992-01-01 00:00:00