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  • 1
    Electronic Resource
    Electronic Resource
    A new method for determining the microbial degradation of keratin in soils (1982)
    Springer
    Cellular and molecular life sciences 38 (1982), S. 243-244 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Keratin azure was incubated in soils in mesh bags of pore-size 5 μm, chosen to allow micro-organisms, but not soil animals access to the substrate. The non-degraded substrate was solubilized and the amount of dye remaining determined as a measure of keratin breakdown.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01945090
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  • 2
    Electronic Resource
    Electronic Resource
    Microbial and enzyme activity in soils amended with a natural source of easily available carbon (1996)
    Springer
    Biology and fertility of soils 21 (1996), S. 177-183 
    Details
    ISSN: 1432-0789
    Keywords: Key words Heterotrophic microorganisms ; Nitrification ; P solubilization ; S oxidation ; Soil enzymes ; Sugar beet
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract The addition of sugar beet to soils as a source of C led to an increase in the availability of easily utilizable C (glucose), which in turn markedly increased numbers of soil bacteria and of the yeast Williopsis californica. Nitrification, P solubilization, urea hydrolysis (and the subsequent nitrification of liberated NH) were stimulated by this amendment. The stimulation of nitrification may have been a result of increased heterotrophic nitrification. In contrast, the concentration of sulphate in S0-amended soils declined following amendment, presumably as the result of enhanced S immobilization. Activity of the enzymes amylase, aryl sulphatase, invertase, phosphatase, dehydrogenase, and urease were all stimulated by the sugar beet amendment. These results suggest that sugar beet amendment could be used to increase the rate of release of plant-available ions from fertilizers such as insoluble phosphates. Problems may arise, however, from a subsequent increase in nitrification and reduced sulphate availability.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00335931
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  • 3
    Electronic Resource
    Electronic Resource
    Microbial and enzyme activity in soils amended with a natural source of easily available carbon (1996)
    Springer
    Biology and fertility of soils 21 (1996), S. 177-183 
    Details
    ISSN: 1432-0789
    Keywords: Heterotrophic microorganisms ; Nitrification ; P solubilization ; S oxidation ; Soil enzymes ; Sugar beet
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract The addition of sugar beet to soils as a source of C led to an increase in the availability of easily utilizable C (glucose), which in turn markedly increased numbers of soil bacteria and of the yeast Williopsis californica. Nitrification, P solubilization, urea hydrolysis (and the subsequent nitrification of liberated NH inf4 sup+ ) were stimulated by this amendment. The stimulation of nitrification may have been a result of increased heterotrophic nitrification. In contrast, the concentration of sulphate in So-amended soils declined following amendment, presumably as the result of enhanced S immobilization. Activity of the enzymes amylase, aryl sulphatase, invertase, phosphatase, dehydrogenase, and urease were all stimulated by the sugar beet amendment. These results suggest that sugar beet amendment could be used to increase the rate of release of plant-available ions from fertilizers such as insoluble phosphates. Problems may arise, however, from a subsequent increase in nitrification and reduced sulphate availability.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00335931
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  • 4
    Electronic Resource
    Electronic Resource
    Influence of soil moisture on sulphur oxidation in brown earth soils exposed to atmospheric pollution (1987)
    Springer
    Biology and fertility of soils 5 (1987), S. 209-214 
    Details
    ISSN: 1432-0789
    Keywords: S oxidation ; Soil moisture ; Atmospheric pollution ; Soil moisture content ; Sulphate production
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Laboratory studies were conducted to determine the influence of soil moisture on S oxidation in atmospheric-polluted brown earth soils. Elemental S was oxidized to sulphate over a wide range of soil moisture treatments (10%–60% w/w), but occurred optimally at around 40%–50% soil moisture content (0.08 MPa). Thiosulphate and tetrathionate were found only in soils incubated at low moisture contents. S-oxidation generally acidified the soils, but an increase in soil pH occurred at high moisture levels, where soils were waterlogged. The S oxidative ability of soil samples collected at monthly intervals and incubated with elemental S in the field-moist state was also strongly influenced by soil moisture content. The rate of sulphate production was greatest in the brown earth soil exposed to heavy atmospheric pollution from a coking works.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00256902
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  • 5
    Electronic Resource
    Electronic Resource
    Sulphur oxidation by a Streptomyces sp. growing in a carbon-deficient medium and autoclaved soil (1984)
    Springer
    Archives of microbiology 139 (1984), S. 272-276 
    Details
    ISSN: 1432-072X
    Keywords: Heterotrophic sulphur oxidation ; Oligotrophy ; Sulphur cycle
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Streptomyces colonies, apparently all of the same species, were isolated from a range of soils using a polysulphide medium lacking an organic carbon source. Growth on this medium, and clearing of the otherwise white, opaque overlay, suggested that the organisms were capable of growing autotrophically. However, investigation of one of these isolates showed that it was unable to fix 14CO2 and did not possess the enzyme ribulose bisphosphate carboxylase, showing that it was incapable of autotrophic growth. The isolate oxidized elemental sulphur, thiosulphate and tetrathionate to sulphate in vitro in carbon-deficient medium, and also oxidized elemental sulphur to sulphate when inoculated into autoclaved soil supplemented with sulphur. It also oxidized polysulphide when growing on Czapek Dox and plate count agars. The isolate can therefore grow heterotrophically in both carbon-rich media and in media lacking organic carbon — presumably by scavenging organic carbon from the laboratory atmosphere. The possible role of these organisms in sulphur oxidation in soils is commented upon.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00402013
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  • 6
    Electronic Resource
    Electronic Resource
    William Arthur Johnson - a postraduate's contribution to the Krebs cycle
    Amsterdam : Elsevier
    Trends in Biochemical Sciences 18 (1993), S. 61-62 
    Details
    ISSN: 0968-0004
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0968-0004(93)90057-T
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  • 7
    Electronic Resource
    Electronic Resource
    Growth of Phanerochaete chrysosporium in soil and its ability to degrade the fungicide benomyl
    Amsterdam : Elsevier
    Bioresource Technology 49 (1994), S. 197-201 
    Details
    ISSN: 0960-8524
    Keywords: Bioremediation ; degradation ; fungicide ; soil microbiology ; white rot fungi
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/0960-8524(94)90039-6
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  • 8
    Electronic Resource
    Electronic Resource
    Biodistribution of a methylene blue derivative in tumor and normal tissues of rats
    Amsterdam : Elsevier
    Journal of Photochemistry and Photobiology B: Biology 20 (1993), S. 63-71 
    Details
    ISSN: 1011-1344
    Keywords: Fibrosarcoma ; Fluorescence ; Laser scan microscopy ; Localization ; Methylene blue derivative ; Photodynamic therapy ; Uptake
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/1011-1344(93)80132-S
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  • 9
    Electronic Resource
    Electronic Resource
    Photobactericidal activity of phenothiazinium dyes against methicillin-resistant strains of Staphylococcus aureus (1998)
    Oxford, UK : Blackwell Publishing Ltd
    FEMS microbiology letters 160 (1998), S. 0 
    Details
    ISSN: 1574-6968
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: The photodynamic antibacterial properties of a closely related series of phenothiazinium dyes were tested against several pathogenic strains of Staphylococcus aureus, four of which were methicillin-resistant. Illumination of the photosensitisers at a fluence rate of 1.75 mW cm−2 generally resulted in the enhancement of antibacterial activity in liquid culture and in greater efficacy than the methicillin analogue flucloxacillin. For methylene blue, dimethyl methylene blue and new methylene blue illumination led to increases in bactericidal activity ≤16-fold, typically 4-fold. In addition, dimethyl methylene blue and new methylene blue were active against epidemic strains of methicillin-resistant Staphylococcus aureus at concentrations lower than that of vancomycin (≥0.5 μM).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1574-6968.1998.tb12908.x
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  • 10
    Electronic Resource
    Electronic Resource
    Microorganisms cultured from stratospheric air samples obtained at 41 km (2003)
    Oxford, UK : Blackwell Publishing Ltd
    FEMS microbiology letters 218 (2003), S. 0 
    Details
    ISSN: 1574-6968
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Samples of air removed from the stratosphere, at an altitude of 41 km, were previously found to contain viable, but non-cultureable bacteria (cocci and rods). Here, we describe experiments aimed at growing these, together with any other organisms, present in these samples. Two bacteria (Bacillus simplex and Staphylococcus pasteuri) and a single fungus, Engyodontium album (Limber) de Hoog were isolated from the samples. Although the possibility of contamination can never be ruled out when space-derived samples are studied on earth, we are confident that the organisms originated from the stratosphere. Possible mechanisms by which these organisms could have attained such a height are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1574-6968.2003.tb11513.x
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