| biological nitrogen fixation in the terrestrial environment of a high arctic ecosystem (truelove lowland, devon island, n.w.t.). | arranged in descending order of nitrogen-fixing (acetylene-reducing) potential the sites examined were mesic meadow and peat polygon troughs (equal rank), transition zone between mesic meadow and gravel ridge, gravel ridge, polar dessert, and peat polygon tops. the dominant nitrogen-fixing microorganisms, as in other arctic areas, were blue-green bacteria, especially those epiphytic on arctic mosses. the epiphytic association exhibited an optimum temperature for fixation of 20 degrees c. other b ... | 1978 | 96927 |
| isoprenoid quinones in the classification of coryneform and related bacteria. | menaquinones were the only isoprenoid quinones found in 85 of the 95 coryneform bacteria examined. dihydromenaquinones having nine isoprene units were the main components isolated from corynebacterium bovis, from other glutamic acid-producing strains, and from arthrobacter globiformis and related species. dihydromenaquinones with eight isoprene units were found in brevibacterium linens, the remaining corynebacterium species and strains probably belonging to the genus rhodococcus. tetrahydromenaq ... | 1979 | 107269 |
| the association of mycobacterium flavum 301 with gram-negative bacteria: ultrastructural and biochemical evidence. | morphological characteristics, respiratory quinones, biochemical activities, cell wall ultrastructure and dna base composition of mycobacterium flavum 301 were studied. on the basis of the composition of its cell wall, its respiratory quinone and ubiquinone, the organism was associated with gram-negative bacteria. the strain appears to represent a group of bacteria hitherto not described. | 1979 | 552817 |
| the electron transport to nitrogenase in mycobacterium flavum. | 1. two ferredoxin-type iron-sulfur proteins have been isolated from mycobacterium flavum 301 grown under nitrogen-fixing, iron-sufficient conditions. no flavodoxin was observed. 2. these ferredoxins are apparently soluble: they were present in the supernatant fraction after disrupting by decompression. only small amounts were present in particulate fractions. 3. the two ferredoxins were separated by chromatography on deae-cellulose, sephadex or electrophoresis. 4. both ferredoxins mediated the t ... | 1976 | 1252086 |
| [study of the light and dark stages of photo-induced synthesis of carotenoids by mycobacterium flavum var. methanicum]. | | 1969 | 4190155 |
| nitrogen fixation by extracts of mycobacterium flavum 301. use of natural electron donors and oxygen-sensitivity of cell-free preparations. | | 1971 | 4324334 |
| the respiratory system of the aerobic, nitrogen-fixing, gram-positive bacterium, mycobacterium flavum 301. | | 1971 | 4332102 |
| confusion in the taxonomy of a nitrogen-fixing bacterium currently classified as mycobacterium flavum 301. | | 1971 | 5089328 |
| resolution of nitrogenase of mycobacterium flavum 30l into two components and cross reaction with nitrogenase components from other bacteria. | | 1971 | 5578611 |
| steroid der0vatives. xlvii. microbial transformation of 16-beta-methyl-16,17-oxido-7-beta,11 alpha-dihydroxypregn-4-ene-3,20-dione using mycobacterium flavum. | | 1968 | 5642683 |
| [effect of light on carotenoid biosynthesis by mycobacterium flavum var. methanicum b4b and mycobacterium lacticolum 35]. | | 1968 | 5732051 |
| nitrogen fixation by cultures and cell-free extracts of mycobacterium flavum 301. | | 1969 | 5792674 |
| nitrogen fixation by cultures and cell-free extracts of mycobacterium flavum 301. | | 1969 | 5795909 |
| [molecular nitrogen fixation in the waters of eutrophic and polyhuic lakes of the estonian ssr]. | a modified acetylene technique was used to assay the rate of molecular nitrogen fixation in estonian lakes containing methane in the hypolimnion. methods were elaborated to eliminate ethylene cooxidation by methane oxidizing bacteria. methane oxidation and nitrogen fixation were found in a narrow microaerobic zone in lakes with the stratification of temperature in the water mass; these biochemical processes occurred when the content of dissolved oxygen varied within the range of 0.1 to 0.8 mg o2 ... | 1980 | 7412622 |
| gene structure and expression of the corynebacterium flavum n13 ask-asd operon. | two promoters required for expression of the ask-asd genes, encoding aspartokinase (ak) and aspartate-semialdehyde dehydrogenase (asd), in corynebacterium flavum n13, askp1 and askp2, have been identified by deletion analysis and s1 nuclease mapping. transcription from askp1 initiates 35 and 38 bp upstream of the ask structural gene. a second promoter, askp2, lies within the ask coding region, upstream of the translation start site of the ak beta subunit and can direct the expression of ak beta ... | 1993 | 8100567 |
| rescuing activity of galactoglycerolipids from cellular lesions induced by 5-aminolevulinic acid. | an anti-oxygen radical reagent of a bacterial metabolite, m874 monogalactoglycerolipid (di-o-12-methyl-tetradecanoyl-3-o-beta-d-galactopyranosyl-sn-glycerol ), was tested for its ability to protect two organisms against cellular lesions induced by 5-aminolevulinic acid (ala) and light. in corynebacterium flavescens atcc 10340, extracellular uroporphyrin and coproporphyrin were the main porphyrin products. although less than 2 mm ala increased porphyrin synthesis, ala levels above 3 mm inhibited ... | 2000 | 10788790 |
| the chemical composition of essential oil and in vitro antibacterial activities of essential oil and methanol extract of ziziphora persica bunge. | this study was designed to examine the chemical composition of essential oil and the in vitro antibacterial activities of essential oil and methanol extracts of ziziphora persica. the inhibitory effects of essential oil and methanol extracts of ziziphora persica were tested against 98 laboratory strains belonging to 51 bacteria species by using disc-diffusion assay and micro-broth dilution methods, respectively. gc and gc/ms analyses revealed that the essential oil predominantly contains (+)-pul ... | 2006 | 16529887 |
| [trichomycosis (trichobacteriosis) capitis in an infant: microbiological, dermoscopic and ultrastructural features]. | trichomycosis is a superficial infection caused by corynebacterium flavescens, which regularly affects axillary, and to a a lesser extent, pubic, scrotal and intergluteal, and exceptionally, head hairs or trichomycosis capitis (tc). this condition is characterised by the formation of bacterial nodules. clinically, it can be confused with white piedra or pediculosis. the diagnosis is made by microscopic and dermoscopic observation and confirmed by culture. | 2017 | 28542660 |
| microbial transformation of steroids. xix. transformation of steroids by mycobacterium flavum. | | 1962 | 13876302 |
| biodiversity of the bacterial flora on the surface of a smear cheese. | the bacteria on the surface of a farmhouse smear-ripened cheese at four stages of ripening (4, 16, 23, and 37 days) from inoculated (i.e., deliberately inoculated with brevibacterium linens bl2) and noninoculated (not deliberately inoculated with b. linens bl2) cheese were investigated. the results show that, contrary to accepted belief, b. linens is not a significant member of the surface flora of smear cheese and no microbial succession of species occurred during the ripening of the cheeses. o ... | 2002 | 11823224 |
| [fixation of molecular nitrogen and activity of the microflora in the bottoms of certain lakes in the estonian ssr and the rybinsk reservoir]. | the rate of molecular nitrogen fixation was determined in bottom grounds of three estonian lakes and the rybinsk water reservoir in the summer of 1977--1978. certain species of nitrogen fixing bacteria were found to be confined to lakes of certain trophic type. ecological niches with the mass growth of clostridium pasteurianum, azomonas agilis and clostridium butyricum were detected in the sediments of eutrophic lakes. ecological niches of az. insignis and cl. acetobutylicum occur in polyhumic l ... | 1980 | 7442573 |
| [exopolysaccharide of mycobacterium flavum]. | mycobacterium flavum 158a can produce exopolysaccharides whose quantity varies, depending on the culture age, from 88.2 to 186.8% of the cell biomass weight in a medium with sucrose and from 1.3 to 25.0% in a medium with a polysaccharide synthesized by the oligonitrophilic bacterium pseudomonas sp. 158a. the absolute and relative content of exopolysaccharides in the cultural broth decreases during the intensive growth of m. flavum 158a. this appears to be caused by their assimilation as a carbon ... | 1984 | 6482748 |
| isolation and characterization of the facultative methylotroph mycobacterium id-y. | a facultatively methylotrophic mycobacterium was isolated from cleveland harbor, ohio, usa. the isolate, designated id-y, used a wide range of carbon and energy sources including methane and several other hydrocarbons. it displayed a growth cycle from rod-shaped exponential-phase cells, with many cell pairs exhibiting v-formation, to cocco-bacillary stationary-phase cells. a fixation technique involving glutaraldehyde/alcian blue resulted in the observation of a three-layered cell wall. isolate ... | 1987 | 3655742 |
| [cloning and gene expression of corynebacterium flavum atcc14067, complementing arga and arge mutations in escherichia coli cells]. | | 1986 | 3537772 |
| ferredoxins from nitrogen-fixing bacteria. physical and chemical characterisation of two ferredoxins from mycobacterium flavum 301. | | 1978 | 205419 |
| nitrogen fixation by hydrogen-utilizing bacteria. | seventeen strains of nitrogen-fixing bacteria, isolated from different habitats on hydrogen and carbon dioxide as well as on other substrates, morphologically resembled each other. all strains, including mycobacterium flavum 301, grew autotrophically with hydrogen. the isolate strain 6 was sensitive to oxygen when dependent on n2 as nitrogen source, a consequence of the sensitivity of its nitrogenase towards oxygen. at the same time, strain 6 was sensitive to hydrogen when growing autotrophicall ... | 1976 | 5978 |
| trichomycosis (trichobacteriosis): clinical and microbiological experience with 56 cases. | trichomycosis is asymptomatic bacterial infection of the axillary hairs caused by corynebacterium sp. | 2013 | 23960390 |
| application of single strand conformation polymorphism --pcr method for distinguishing cheese bacterial communities that inhibit listeria monocytogenes. | the aim of this study was to compare the microbial communities of different cheeses where listeria monocytogenes either grew or did not grow. for this purpose, (i) isolates from the most inhibitory cheese ecosystem were identified and their ability to produce anti-listeria substances was determined, (ii) bacterial communities of cheeses with and without l. monocytogenes growth were compared using the single strand conformation polymorphism method. the study showed sscp to be an effective tool fo ... | 2007 | 17306399 |
| diversity of microbiota found in coffee processing wastewater treatment plant. | cultivable microbiota presents in a coffee semi-dry processing wastewater treatment plant (wtp) was identified. thirty-two operational taxonomic units (otus) were detected, these being 16 bacteria, 11 yeasts and 4 filamentous fungi. bacteria dominated the microbial population (11.61 log cfu ml- 1), and presented the highest total diversity index when observed in the wtp aerobic stage (shannon = 1.94 and simpson = 0.81). the most frequent bacterial species were enterobacter asburiae, sphingobacte ... | 2017 | 29134289 |
| phylogenetic perspectives of nitrogen-fixing actinobacteria. | it was assumed for a long time that the ability to catalyze atmospheric nitrogen (diazotrophy) has a narrow distribution among actinobacteria being limited to the genus frankia. recently, the number of nitrogen fixation (nifh) genes identified in other non-frankia actinobacteria has dramatically increased and has opened investigation on the origin and emergence of diazotrophy among actinobacteria. during the last decade, mycobacterium flavum, corynebacterium autotrophicum and a fluorescent arthr ... | 2011 | 21779790 |