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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Archives of microbiology 45 (1963), S. 27-32 
    ISSN: 1432-072X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The isolation of an ultraviolet absorbing material from spores of Sarcina ureae and its identification as dipicolinic acid (DPA) is described. The DPA was present in amounts ranging from 4–7% of the spore dry weight, but was not detected in vegetative cells. The contention that the spores of Sarcina ureae are unusual or atypical, and that the organism is a morphologically aberrant Bacillus species is discussed and found wanting.
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Archives of microbiology 57 (1967), S. 199-213 
    ISSN: 1432-072X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Electron microscopic examination of thin sections of vegetative cells and microcysts of S. myxococcoides indicates that the vegetative cells have a fine structure basically identical to that of other gram-negative bacteria. Microcysts, on the other hand, possess not only an extensive internal membrane system, an additional “intermediate layer” interposed between the plasma membrane and cell wall, but also a thick fibrillar outer coat or capsule.
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Archives of microbiology 59 (1967), S. 211-217 
    ISSN: 1432-072X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Kinetic analyses of 14C-methylamine and 14C-bicarbonate assimilation in a gram-negative diplococcus suggests that methylamine assimilation occurs via a glycine-serine hydroxymethylation sequence rather than autotrophically by a Calvin cycle.
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  • 4
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 200 (1963), S. 1127-1128 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] It seemed possible that these morphogeneses might result from a depletion in the 'low' 'Tryptone' medium of some essential nutrient(s) which would be present in the 1 per cent 'Tryptone' medium in amounts sufficient to support continued vegetative cell growth. An experimental test of this ...
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  • 5
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 184 (1959), S. 1428-1429 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The possibility of bacterial oxygenation with molecular oxygen2 has been studied. Indirect evidence for such a mechanism already exists in the case of another bacterium utilizing hydrocarbon3. The various volatile oxygenated compounds were produced by P. methanica in the presence of an atmosphere ...
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Archives of microbiology 122 (1979), S. 17-27 
    ISSN: 1432-072X
    Keywords: Gliding bacteria ; CO2-requiring ; Periodontal disease ; Gram-negative ; Ultrastructure ; Capnocytophaga
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Gram-negative, anaerobic gliding bacteria were isolated from normal supragingival plaque and from periodontal lesions. Isolates could be divided into two size classes: small 2.4–4.2 μm×0.38–0.5 μm and large 4.8–5.8 μm×0.42–0.6 μm cells. The outer membrane was either loose-fitting and wavy, or taut, and of variable thickness. An electron-dense fuzz was discernible on several of the isolates. The periplasmic region was of variable electron-density. The genus Capnocytophaga has been proposed for these organisms based on morphological and cultural characteristics.
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  • 7
    ISSN: 1432-072X
    Keywords: Key words Sulfonate metabolism ; Sulfate-reducing bacteria ; Dissimilatory reduction of sulfonate-sulfur ; Desulfovibrio
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The enrichment and isolation in pure culture of a bacterium, identified as a strain of Desulfovibrio, able to release and reduce the sulfur of isethionate (2-hydroxyethanesulfonate) and other sulfonates to support anaerobic respiratory growth, is described. The sulfonate moiety was the source of sulfur that served as the terminal electron acceptor, while the carbon skeleton of isethionate functioned as an accessory electron donor for the reduction of sulfite. Cysteate (alanine-3-sulfonate) and sulfoacetaldehyde (acetaldehyde-2-sulfonate) could also be used for anaerobic respiration, but many other sulfonates could not. A survey of known sulfate-reducing bacteria revealed that some, but not all, strains tested could utilize the sulfur of some sulfonates as terminal electron acceptor. Isethionate-grown cells of Desulfovibrio strain IC1 reduced sulfonate-sulfur in preference to that of sulfate; however, sulfate-grown cells reduced sulfate-sulfur in preference to that of sulfonate.
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  • 8
    ISSN: 1432-072X
    Keywords: Capnocytophaga ; Gliding bacteria ; CO2-requiring ; Gram-negative ; Periodontal diseases ; Taxonomy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The characteristics of gliding bacteria isolated from both healthy and diseased sites in the oral cavity are, summarized and the taxonomic position of the bacteria discussed. Uniform attributes of the fusiform isolates include gliding motility, strictly fermentative metabolism dependent on the presence of CO2 (or HCO 3 - ), under either anaerobic or aerobic conditions, presence of benzidine-reactive components, and the production of acetic and succinic acids as the major or sole, acidic, metabolic and products. Given the guanine and cytosine content of DNA, their gliding motility, and the ability of many strains to attack polysaccharide a relationship to the cytophagas is suggested. This relationship, along with the CO2-dependent growth is recognized by the generic name Capnocytophaga given them. Many of the isolates are grouped into three species C. ochracea, C. Sputigena, and C. gingivalis, separated on the basis of morphological and physiological traits.
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  • 9
    ISSN: 1432-072X
    Keywords: Capnocytophaga ; Gliding bacteria ; CO2-requiring ; Gram-negative ; Periodontal diseases ; Physiology
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Sixty-eight strains of capnophilic fusiform Gram-negative rods from the human oral cavity were subjected to extensive physiologic characterization, tested for susceptibility to various antibiotics, and the mol-percent guanine plus cytosine of each isolate determined. The characteristics of the isolates were compared with 10 fresh and 2 stock isolates of Fusobacterium nucleatum. The isolates clearly differed from the Fusobacterium species on the basis of molpercent guanine plus cytosine, end products, growth in a capnophilic environment and fermentation of carbohydrates. All of the gliding isolates required CO2 and formed acetate and succinate, but not H2S, indole or acetylmethylcarbinol. All fermented glucose, sucrose, maltose and mannose. The organisms may be differentiated on the basis of fermentation of additional carbohydrates, hydrolysis of polymers and reduction of nitrate. Three species are proposed: Capnocytophaga ochracea, Capnocytophaga sputigena and Capnocytophaga gingivalis. Ten isolates did not fit into the proposed species.
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Archives of microbiology 35 (1960), S. 92-104 
    ISSN: 1432-072X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Type of Medium: Electronic Resource
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