Nitrogen fixation by Rhizobium sp. 32H1. A morphological and ultrastructural comparison of asymbiotic and symbiotic nitrogen-fixing forms.

abstract：:The comparative ability of different methods to assess virulence of Listeria species was investigated in ten Listeria strains. All strains were initially subjected to pulsed-field gel electrophoresis analysis to determine their relatedness. Virulence characteristics were subsequently tested for by (i) determining the ...

journal_title：Canadian journal of microbiology

authors： Chiu S,Vanderlinde PB,Dykes GA

更新日期：2006-04-01 00:00:00

abstract：:We report some characteristics of a ruminal bacterium (strain NPOH1) that metabolizes 3-nitropropanol, the toxic principle of various milk vetchs that are distributed worldwide. The gram-positive bacterium was nonmotile and did not produce spores. Growth of strain NPOH1 occurred under anaerobic conditions and was supp...

journal_title：Canadian journal of microbiology

authors： Anderson RC,Rasmussen MA,DiSpirito AA,Allison MJ

更新日期：1997-07-01 00:00:00

abstract：:Concentric bodies were found in vegetative and pycnidial cells of Podoxythium tricothecium and in ascostromal paraphyses of Rhytidhysterium rufulum, two representatives of the Loculoascomycetes. They averages 185 nm in diameter in P. trichothecium and 255 nm in R. rufulum and consisted of three zones. ...

journal_title：Canadian journal of microbiology

authors： Samuelson DA,Bezerra J

更新日期：1977-10-01 00:00:00

abstract：:Several restriction systems were detected in different strains of Streptomyces antibioticus by using actinophages as biological indicators. Adsorption of phages to the bacteria, together with the study of the efficiency of plating gave an initial indication of restriction in three strains. The alternation of efficienc...

journal_title：Canadian journal of microbiology

authors： Sànchez J,Barbès C,Hernandez A,de los Reyes Gavilàn CR,Hardisson C

更新日期：1985-10-01 00:00:00

abstract：:Bacteria associated with 6 habitats of groundnut were evaluated for their broad-spectrum antifungal activity and suppression of collar rot (Aspergillus niger) of groundnut. Three hundred and ninety-three strains were tested against 8 fungal pathogens of groundnut including 5 necrotrophic fungi, Aspergillus flavus, A. ...

journal_title：Canadian journal of microbiology

authors： Kishore GK,Pande S,Podile AR

更新日期：2005-02-01 00:00:00

abstract：:Neisseria gonorrhoeae strains can be grouped or differentiated (auxotyped) by their requirements for none, or any one or more of proline, uracil, hypoxanthine, and citrulline or ornithine. Most strains were readily assessed because they responded with growth or no growth on each defined auxanographic medium. Other str...

journal_title：Canadian journal of microbiology

authors： Hendry AT

更新日期：1983-10-01 00:00:00

abstract：:Experiments were carried out to elucidate linkage between methane consumption and mineralization of P from different phosphorous sources. The treatments were no CH4 no P amendment absolute control, with CH4 no P amendment control, with CH4 + inorganic P as Ca3(PO4)2 and with CH4 + organic P (sodium phytate). P sources...

journal_title：Canadian journal of microbiology

authors： Mohanty SR,Kumar A,Parmar R,Dubey G,Patra AK,Kollah B

更新日期：2020-12-10 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：: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：:Enterococci, formerly confounded with faecal streptococci, are recognized since the beginning of the century as being faecal in origin and are generally searched for in waste waters and food products; their detection may in fact indicate the presence of enteropathogenic organisms. Although nearly ubiquitous, their pre...

journal_title：Canadian journal of microbiology

authors： Flahaut S,Boutibonnes P,Auffray Y

更新日期：1997-08-01 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 synergistic interactions between Pseudomonas aeruginosa and virulent or attenuated murine cytomegalovirus (MCMV) were compared in vivo. Virulent MCMV challenge at a dose of 5 X 10(5) pfu/mouse intraperitoneally, followed by intranasal superinfection with 5 X 10(6) cfu/mouse of Pseudomonas aeruginosa after 48 h res...

journal_title：Canadian journal of microbiology

authors： Kournikakis B,Babiuk LA

更新日期：1987-10-01 00:00:00

abstract：:Environmental factors influencing the occurrence and community structure of soil yeasts in forests are not well studied. There are few studies dedicated to Southern Hemisphere soil yeasts populations and even fewer focused on temperate forests influenced by volcanic activity. The present work aimed to study the ecolog...

journal_title：Canadian journal of microbiology

authors： Mestre MC,Fontenla S,Rosa CA

更新日期：2014-06-01 00:00:00

abstract：:Proteins were solubilized from cell wall fractions of Candida albicans and separated by polyacrylamide gel electrophoresis. Cell walls were isolated from 25 and 37 degrees C growing and stationary phase yeast cultures and from germ tubes. The 42 protein bands detected by dye binding were observed in all wall extracts,...

journal_title：Canadian journal of microbiology

authors： Chaffin WL,Stocco DM

更新日期：1983-10-01 00:00:00

abstract：:The PII protein is apparently involved in the control of NifA activity in Herbaspirillum seropedicae. To evaluate the probable role of PII in signal transduction, uridylylation assays were conducted with purified H. seropedicae PII and Escherichia coli GlnD, or a cell-free extract of H. seropedicae as sources of uridy...

journal_title：Canadian journal of microbiology

authors： Benelli EM,Buck M,de Souza EM,Yates MG,Pedrosa FO

更新日期：2001-04-01 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：: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：:Among nine eluents tested, 0.5% (w/v) isoelectric casein at pH 9.0 and 0.5% (w/v) non-fat dry milk (pH 9.0) were the most efficient in eluting poliovirus type 1 (Sabin) from Eustis fine sand. However, no significant difference was found between the overall (elution followed by concentration) virus recoveries by non-fa...

journal_title：Canadian journal of microbiology

authors： Bitton G,Charles MJ,Farrah SR

更新日期：1979-08-01 00:00:00

abstract：:During growth on minimal salts - glucose media supplemented with high concentrations of Na2SO3 (10-3 and 10-2 M), Salmonella heidelberg exhibited cytological and growth responses which indicated increased cellular toxicity with increasing sulfite concentrations. The large quantities of sulfide evolved during growth at...

journal_title：Canadian journal of microbiology

authors： McCready RG,Krouse HR

更新日期：1979-12-01 00:00:00

abstract：:The effects of water activity (aw, 0.994-0.90 identical to 0.4-14.0 (-)MPa water potential), temperature (4-45 degrees C), and pH (3.6, 5.5, 7.0), and their interactions on growth of isolates of Fusarium moniliforme and Fusarium proliferatum were determined in vitro on a maize extract agar medium. Growth of two isolat...

journal_title：Canadian journal of microbiology

authors： Marín S,Sanchis V,Magan N

更新日期：1995-12-01 00:00:00

abstract：:The entire nucleotide sequence of the rsaA gene, encoding the paracrystalline surface (S) layer protein (RsaA) of Caulobacter crescentus CB15A, was determined. The rsaA gene encoded a protein of 1026 amino acids, with a predicted molecular weight of 98,132. Protease cleavage of mature RsaA protein and amino acid seque...

journal_title：Canadian journal of microbiology

authors： Gilchrist A,Fisher JA,Smit J

更新日期：1992-03-01 00:00:00

abstract：:The types of bacteria and fungi present in the air of a municipal solid waste recovery system have been characterized and the population densities estimated. Conventional methods were successful in enumerating coagulase-positive staphylococci, Klebsiella spp., gram-negative bacteria, fungi, and common indicator organi...

journal_title：Canadian journal of microbiology

authors： Lembke LL,Kniseley RN

更新日期：1985-03-01 00:00:00

abstract：:The role the environment has on populations of Pythium and Mesocriconema spp. was investigated at 5 golf course locations in east central Alabama. Every 4 to 5 weeks soil samples were collected from 3 golf greens on each of the 5 golf courses. Environmental data, including air and soil temperature, pH and relative hum...

journal_title：Canadian journal of microbiology

authors： Allen TW,Han DY,Bowen KL

更新日期：2005-04-01 00:00:00

abstract：:Ninety-five fecal samples from Atlantic cod (Gadus morhua L.), caught along the northern Norwegian coast, were examined bacteriologically for occurrence of C. perfringens. Isolates were examined by polymerase chain reaction (PCR) for genes encoding the four lethal toxins (alpha, beta, epsilon, and iota) for classifica...

journal_title：Canadian journal of microbiology

authors： Aschfalk A,Müller W

更新日期：2002-04-01 00:00:00

abstract：:We report a cinematographic analysis of culmination in fruiting bodies of Polysphondylium pallidum. During the final stages of aggregation, sorogen elongation is slow. An increase in the rate of sorogen elongation occurs when the growing stalk contacts the substratum, lifting the cell mass into the air. The elongation...

journal_title：Canadian journal of microbiology

authors： O'Day DH,Durston AJ

更新日期：1980-08-01 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：:A microcinematographic analysis of the behaviour and movements of cells and cell masses in mated cultures (NC4 X VI2) of Dictyostelium discoideum indicates that a chemotactic process directs cell aggregation during macrocyst development. Zygote giant cells form before aggregation begins and act as the aggregation cent...

journal_title：Canadian journal of microbiology

authors： O'Day DH

更新日期：1979-12-01 00:00:00

abstract：:The effect of hydrogen peroxide on Treponema pallidum was investigated. The in vitro loss of virulence (as measured by rabbit inoculation) of T. pallidum was accelerated by as low as 100 microM hydrogen peroxide in the complex maintenance medium used. Higher doses led to rapidly accelerated death with 500 microM hydro...

journal_title：Canadian journal of microbiology

authors： Steiner BM,Wong GH,Sutrave P,Graves S

更新日期：1984-12-01 00:00:00

abstract：:Iron and sulfur oxidation by Thiobacillus ferrooxidans as well as growth on ferrous iron were inhibited by a variety of low molecular weight organic compounds. The influences of chemical structure of the organic inhibitors, pH, temperature, physical treatment of cells, and added inhibitory or stimulatory inorganic ion...

journal_title：Canadian journal of microbiology

authors： Tuttle JH,Dugan PR

更新日期：1976-05-01 00:00:00

abstract：:Fluorescein isothiocyanate-conjugated antibody to purified enterotoxin of Clostridium perfringens was used to study the intracellular formation of enterotoxin by this organism. Enterotoxin was detected at 4 h of growth at the end of the cell containing forespore. With the development of the spore, enterotoxin accumula...

journal_title：Canadian journal of microbiology

authors： Niilo L

更新日期：1977-07-01 00:00:00