abstract：:Roots of field-grown tropical maize, Panicum maximum Jacq. and Digitaria decumbens Stent., and of sorghum and wheat grown in monoxenic culture with the diazotroph Spirillum lipoferum (syn. Azospirillum spp.) were examined for tetrazolium-reducing bacteria following incubation of roots in a malate-phosphate buffer-2,3,...

journal_title：Canadian journal of microbiology

authors： Patriquin DG,Döbereiner J

更新日期：1978-06-01 00:00:00

abstract：:Ribosomal preparations from Neisseria gonorrhoeae types 1 and 4 were examined for their in vitro stimulation of mouse splenocytes to determine the ribosomal moiety or contaminant responsible for the immunoproliferative activity. In immunodiffusion tests with homologous rabbit antiserum, crude 70S ribosomes formed four...

journal_title：Canadian journal of microbiology

authors： Brodeur BR

更新日期：1978-05-01 00:00:00

abstract：:A visual micromethod for measuring antifungal effects on germination and growth is described. The antifungal agent griseofulvin and the fungus Trichophyton mentagrophytes were used as materials to compare the micromethod with a standard assay based on dry mycelial weight. The micromethod was more sensitive than the we...

journal_title：Canadian journal of microbiology

authors： Kerbs S,Hutton RD,Hollister JW

更新日期：1978-05-01 00:00:00

abstract：:Cultures of Sclerotium rolfsii and Trichoderma viride together in autoclaved soil were assayed at intervals during 8 days of incubation for proteolytic activity (PA) of T. viride. Significant proteolytic activity was detected only in soil containing T. viride (i.e., T. viride alone or S. rolfsii + T. viride); greatest...

journal_title：Canadian journal of microbiology

authors： Rodriguez-Kabana R,Kelley WD,Curl EA

更新日期：1978-04-01 00:00:00

abstract：:Fifty-two killer, factor-resistant, nuclear mutants were isolated from sensitive strains of yeast and assorted into three functional groups. All but one mutant owed their resistance to an alteration in the cell wall binding site for killer. In several mutant strains, an alteration at the site of killer binding was ass...

journal_title：Canadian journal of microbiology

authors： Al-Aidroos K,Bussey H

更新日期：1978-03-01 00:00:00

abstract：:A tryptophan auxotroph of aerobically grown Rodospirillum rubrum was isolated after mutagenesis and replica plating. The mutant grows on tryptophan or indole, accumulates indole glycerol phosphate, lacks the capacity to convert indole glycerol phosphate to indole glycerol phosphate to indole, and finally is defective ...

journal_title：Canadian journal of microbiology

authors： Beuchemin-Newhouse N,Cedergen RJ

更新日期：1978-03-01 00:00:00

abstract：:Microsclerotia of three melanin-deficient mutants of Verticillium dahliae formed malanin from (+)-scytalone, 1,8-dihydroxynaphthalene, catechol, and L-3,4-dihydroxyphenylalanine. The melanins formed from (+)-scytalone or 1,8-dihydroxynaphthalene resembled wild-type melanin chemically and ultrastructurally, whereas the...

journal_title：Canadian journal of microbiology

authors： Wheeler MH,Tolmsoff WJ,Bell AA,Mollenhauer HH

更新日期：1978-03-01 00:00:00

abstract：:Effects of temperature and anaerobic conditions on the replication of two bacteriophages, nt-1 and nt-6, of the estuarine bacterium Vibrio natriegens were studied. Reduction in temperature resulted in longer latent periods and reduced burst sizes for both phages. Replication under anaerobic conditions resulted in long...

journal_title：Canadian journal of microbiology

authors： Zachary A

更新日期：1978-03-01 00:00:00

abstract：:Citrate synthase (citrate-oxaloacetate lyase (CoA acetylating), EC 4.1.3.7) has been purified to electrophoretic homogeneity from a marine Pseudomonas. The enzyme was made up of identical subunits, with a molecular wieght of about 53 000, as determined by sodium dodecyl sulphate - polyacrylamide gel electrophoresis. T...

journal_title：Canadian journal of microbiology

authors： Higa AI,Massarini E,Cazzulo JJ

更新日期：1978-03-01 00:00:00

abstract：:The ability of R-type lipopolysaccharide (LPS), isolated from Neisseria gonorrhoeae colony type 4, to protect against infection with N. gonorrhoea colony type 1 (T1 isolates) in the mouse and chicken embryo was investigated. C57 black mice were immunized intraperitoneally with 50 microgram of LPS, and challenged intra...

journal_title：Canadian journal of microbiology

authors： Diena BB,Ashton FE,Ryan A,Wallace R

更新日期：1978-02-01 00:00:00

abstract：:An investigation of brucellosis caused by Brucella suis, type 4, in reindeer, Rangifer tarandus L., and other ungulates inoculated experimentally with virulent isolates was undertaken to observe the course of infection, follow titres of serum agglutins, and determine the extent to which intraspecific and interspecific...

journal_title：Canadian journal of microbiology

authors： Rausch RL,Huntley BE

更新日期：1978-02-01 00:00:00

abstract：:Solid media were used to determine which extracellular hydrolytic enzymes are produced by Phytophthora parasitica; P. parasitica var. nicotianae, races 0, 1, and 3; and several other Phytophthora spp. Most isolates produced RNase, DNase, phosphatase, lipase, and cellulase uniformly. All race 3 isolates of P. parasitic...

journal_title：Canadian journal of microbiology

authors： McIntyre JL,Hankin L

更新日期：1978-01-01 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：: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：:Nitrogenase in Azotobacter chroococcum whole cells was inhibited by enzymically generated superoxide anion (O2-), hydrogen peroxide, and ethyl hydrogen peroxide. The degree of inhibition produced by O2- was related to the quantity of oxygen supplied to the organisms in continuous cultures. O2- also inhibited oxygen up...

journal_title：Canadian journal of microbiology

authors： Buchanan AG

更新日期：1977-11-01 00:00:00

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

authors： Austin B,Allen DA,Mills AL,Colwell RR

更新日期：1977-10-01 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：:This paper reports two different enterotoxigenic classes of the genus Aeromonas isolated from fishes. Strains of A. sobria were isolated from healthy fishes only wheras strains of A. hydrophila were isolated from both healthy and moribund fishes. Aeromonas sobria and hydrophilia strains produced a cytotoxic factor and...

journal_title：Canadian journal of microbiology

authors： Boulanger Y,Lallier R,Cousineau G

更新日期：1977-09-01 00:00:00

abstract：:To facilitate the recognition of plant viruses with similar characteristics a dendrogram of characterized viruses was constructed. The sequence of criteria included: type of nucleic acid; single or double stranded; presence or absence of lipid envelope; helical or nonhelical symmetry; and divided or single genome. Non...

journal_title：Canadian journal of microbiology

authors： Tremaine JH

更新日期：1977-09-01 00:00:00

abstract：:Highly distinctive aspects of the exponentail-phase Rhizobium japonicum cell were disclosed by means of thin sections, freeze etching, fluorescent antibodies, and ruthenium red staining. Polarity was expressed in the form of reserve polymer distribution near one end of the cell and as cytoplasmic localization near the...

journal_title：Canadian journal of microbiology

authors： Tsien HC,Schmidt EL

更新日期：1977-09-01 00:00:00

abstract：:Grapes inoculated with poliovirus 1 and coxsackievirus B5 were washed with water, 0.5% polyehtylene glycol, or phosphate-buffered saline with 1% serum. These washes were equally efficient at removing virus but much of the virus in the water was noninfectious until treated with 0.5% polyethylene glycol. ...

journal_title：Canadian journal of microbiology

authors： Konowalchuk J,Spiers JI

更新日期：1977-09-01 00:00:00

abstract：:A commercially available single-bottle blood culture system was evaluated at Ben Taub General Hospital, a Harris County District Hospital. Blood cultures from 1010 patients were examined with the Lederle Diagnostics one-bottle blood culture medium-SPS, Columbia broth (E-Vac, Pfizer), and an in-house-prepared brain hea...

journal_title：Canadian journal of microbiology

authors： Qadri SM,Wende RD

更新日期：1977-08-01 00:00:00

abstract：:A method to obtain synchronous sporulation during idiophase development in liquid surface cultures of Rhizopus arrhizus Fischer in described and evaluated for use in studying metabolism associated with asexual sporulation. In this system growth and sporulation are effectively separated. The respiratory pattern indicat...

journal_title：Canadian journal of microbiology

authors： Lawler GC,Weber DJ

更新日期：1977-08-01 00:00:00

abstract：:5-Methoxymethyl-2'-deoxyuridine (MMUdR), a drug with potent antiviral activity in vitro against Herpes simplex virus, was investigated for its immunosuppressive effects. Doses as high as 2000mg/kg given daily for 9 days were not immunosupporessive as judged by the fact that treated animals produced normal immune respo...

journal_title：Canadian journal of microbiology

authors： Rouse BT,Babiuk LA,Gupta VS

更新日期：1977-08-01 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

abstract：:Attempts at improving chemical fixation for electron-microscopic observation of the capsule of Klebsiella pneumoniae were made. The capsule was preserved by using alcian blue - lanthanum and tris-(1-aziridinyl) phosphine oxide (TAPO) - aldehyde - osmium procedures. Despite the different retention of the overall capsul...

journal_title：Canadian journal of microbiology

authors： Cassone A,Garaci E

更新日期：1977-06-01 00:00:00

abstract：:Responses of Rhizoctonia solani to herbicides in soil cultures were assessed by measuring soil enzyme activity and other growth-related factors. Both beta-galactosidase (EC 3.2.1.23) and phosphatase (EC 3.1.3.1.3.1.3.2) activities were highly correlated with amounts of mycelium in soil. Both enzyme activities were red...

journal_title：Canadian journal of microbiology

authors： Beam HW,Curl EA,Rodriguez-Kabana R

更新日期：1977-05-01 00:00:00

abstract：:An obligate methyltroph Methylomonas methylovora oxidized methylamine, formaldehyde, and formate. Enzymes oxidizing these substrates were detected in a cell-free system. Phenazine methosulfate-linked methylamine dehydrogenase was purified 21-fold. The enzyme had optimum activity at pH 7.5 and was stable at 60 degrees ...

journal_title：Canadian journal of microbiology

authors： Mehta RJ

更新日期：1977-04-01 00:00:00

abstract：:The fine structure of conidia and immature resting spores of the entomogenous fungus Entomophthora apiculata is described. The two cell types contain comparable organelles and quantities of lipid, and possess a similar cell wall structure. The large quantity of stored lipid and numerous mitochondria in each cell type ...

journal_title：Canadian journal of microbiology

authors： Lambiase JT,Yendol WG

更新日期：1977-04-01 00:00:00

abstract：:Bottles of medium were inoculated with both strains of Chromatiacea and Chlorobiaceae (mixed cultures) and immersed at differnt depths in the marine coastal waters of the Marseilles basin (France). After development, the in vivo absorption characteristics of the cells show the effect of the daylight penetration on the...

journal_title：Canadian journal of microbiology

authors： Matheron R,Baulaigue R

更新日期：1977-03-01 00:00:00

abstract：:The study of the relationship between MVL 51 virus, of the Gourlay group L 1, and the Mycoplasma cells of A. laidlawii during the first 35 min of infection leads to the conclusion that a "carrier state" has been established, free virus as well as infected and noninfected cells being present at the same time in the cul...

journal_title：Canadian journal of microbiology

authors： Roger A

更新日期：1977-03-01 00:00:00

abstract：:Effects of Trichoderma harzianum and T. polysporum on chlamydospore production by two isolates of Phytophthora cinamomi were determined over a 21-day period in nonsterile, sterilized, and sterilized amended soil. Trichoderma was either coinoculated with P. cinnamomi or added to the cultures on day 3 of the incubation ...

journal_title：Canadian journal of microbiology

authors： Kelley WD

更新日期：1977-03-01 00:00:00

abstract：:Formate dehydrogenase activity (EC 1.2.1.2) has been demonstrated in cell-free preparations of Mycobacterium phlei by following the reduction of 2,6 dichlorophenolindophenol. thiazolyl blue tetrazolium, or equine cytochrome c. The reduction of equine cytochrome c was inhibited by 2-heptyl-4-hydroxyquinoline-N-oxide. N...

journal_title：Canadian journal of microbiology

authors： Deyhle RR,Barton LL

更新日期：1977-02-01 00:00:00

abstract：:Fluorescent antibody was prepared against a temperate-soil isolate of Beijerinckia obtained from a rhizosphere of rice growing in Camargue (France). The antibody did not cross-react with any of 6 species of Azotobacter, 4 species of Beijerinckia, or 44 unidentified soil bacteria isolated from a spectrum of rhizosphere...

journal_title：Canadian journal of microbiology

authors： Diem HG,Godbillon G,Schmidt EL

更新日期：1977-02-01 00:00:00

abstract：:Numbers of viable bacteria as indicated by colony-forming units (CFU), microbial adenosine triphosphate levels, dissolved organic carbon (DOC), particulate organic carbon and nitrogen (POC and PON), glucose concentration, heterotrophic potential (Vmax), and in situ heterotrophic activity (Vn) of near-surface microlaye...

journal_title：Canadian journal of microbiology

authors： Dietz AS,Albright LJ,Tuominen T

更新日期：1976-12-01 00:00:00

abstract：:Lymphocytic choriomeningitis virus could be demonstrated earlier in mice inoculated with clinical specimens if the mice were sacrificed before they appeared sick for examination by the fluorescent antibody technique. In the procedure, the optimal route for inoculation was intracerebral and the best organ tested for st...

journal_title：Canadian journal of microbiology

authors： Lewis VJ,Thacker WL,Mitchell SH

更新日期：1976-11-01 00:00:00

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...

journal_title：Canadian journal of microbiology

authors： Van Eck WH

更新日期：1976-11-01 00:00:00

abstract：:Deoxyribonuclease (DNase) activity was found in the culture fluids of numerous marine bacteria isolated from seawater. Among these ogranisms, marine bacterium, Vibrio sp., strain No. 2, showed the highest deoxyribonucleic acid-hydrolyzing activity. This organism requires salts of seawater for both growth and extracell...

journal_title：Canadian journal of microbiology

authors： Maeda M,Taga N

更新日期：1976-10-01 00:00:00

abstract：:Mutants of Salmonella typhimurium with defects in the heptose region of the lipopolysaccharide (LPS) molecule (heptose-deficient, chemotype Re) leak periplasmic enzymes (acid phosphatase (EC 3.1.3.2), cyclic phosphodiesterase, ribonuclease I (EC 3.1.4.22), and phosphoglucose isomerase (EC 5.3.1.9) (PGI is at least par...

journal_title：Canadian journal of microbiology

authors： Chatterjee AK,Ross H,Sanderson KE

更新日期：1976-10-01 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