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  • 1
    Electronic Resource
    Electronic Resource
    BIOENERGETICS OF AFLATOXIN BIOSYNTHESIS IN Aspergillus parasiticus (1980)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 45 (1980), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Variations in levels of adenine nucleotides during growth of A. parusiticus were studied under asparagine and zinc deficiency and correlated with aflatoxin biosynthesis. ATP levels decreased gradually from exponential to stationary phase but the reverse was true for ADP and AMP. However, AMP levels in stationary phase were virtually constant under all growth conditions employed. Increased AMP levels were observed in fungal mycelium on high aflatoxin-producing medium as compared to the deficient media. The onset of aflatoxin biosynthesis however was accompanied by a lowering of energy charge and ATP levels.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1980.tb07505.x
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Degradation of pyrene by indigenous fungi from a former gasworks site (2002)
    Oxford, UK : Blackwell Publishing Ltd
    FEMS microbiology letters 210 (2002), S. 0 
    Details
    ISSN: 1574-6968
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Indigenous fungi isolated from soil of a former gasworks site were investigated in submerged cultures with pyrene as the sole carbon source. Five fungal strains capable of degrading pyrene included one strain of Trichoderma harzianum and four strains with characteristics of the genus Penicillium. These are identified as Penicillium simplicissimum, Penicillium janthinellum, Penicillium funiculosum and Penicillium terrestre. A maximum of 75% of 50 mg l−1 and 67% of 100 mg l−1 of pyrene was removed by the fast degrading strain P. terrestre at 22°C during 28 days of incubation. The slower degrader P. janthinellum was able to remove 57% of 50 mg l−1 and about 31.5% of 100 mg l−1 pyrene. Degradation of pyrene is directly correlated with biomass development. To the best of our knowledge, this is the first time that fungi have been reported to use pyrene as the sole carbon and energy source. They may be ideal candidates for effective bioremediation of polycyclic aromatic hydrocarbons.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1574-6968.2002.tb11185.x
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Mutation of Clostridium thermocellum in the presence of certain carbon sources (1990)
    Oxford, UK : Blackwell Publishing Ltd
    FEMS microbiology letters 71 (1990), S. 0 
    Details
    ISSN: 1574-6968
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Abstract When a cellobiose-grown inoculum of Clostridium thermocellum was transferred to either glucose or fructose as the sole carbon sourcem growth occurred only after a long lag of 180–200 h. We established that sugar uptake and phosphorylation were not limiting growth nor was the lag period the time take for a physiological adaptation process or for the growth of a mutant carried over in the cellibiose-grown incoculum. It became apparent that a mutation was occuring during the lag period in response to the selection pressure exerted by the presence of glucose or fructose as the sole carbon source. Once growth occurred on glucose and fructose, the cells could be transferred to cellobiose and back to glucose or fructose without exhibiting the long lag period. The change was stable over several transfers in the respective sugars.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1574-6968.1990.tb03822.x
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    Paper (German National Licenses)
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