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  • 1
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Physiologia plantarum 87 (1993), S. 0 
    ISSN: 1399-3054
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Although the stalk of maize (Zea mays L.) functions as a reservoir for N, little is known of qualitative changes which accompany the remobilization of N to the developing ear. SDS-PAGE analysis revealed that certain stalk proteins were lost, whereas others were not. The removal of ears and the prevention of pollination eliminated the selective protein loss. The use of 15N labelling showed that some stalk-protein fractions turned over faster with ear development, whereas the turnover of others was unchanged or slowed. The data indicate that at least 7 proteins function as temporary storage forms of N in the stalk, and that they are degraded during the first 3 weeks after silking to provide organic N for ear development.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 34 (1987), S. 0 
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Population dynamics of round and elongate gametocytes of Leucocytozoon in wild and captive blue grouse (Dendragapus obscurus (Say)) from Hardwicke Island, British Columbia, were studied from 1980 to 1982. Blue grouse chicks were sampled weekly throughout each transmission season. Three patterns in the type of gametocyte produced during primary infection were observed in naturally-infected captive and wild blue grouse chicks. Such variation in the expression of the gametocyte stage within a single host population suggests a different interpretation than has been previously reported for species of Leucocytozoon. The data from the primary patterns and profiles coupled with reexposure data and the asynchronous appearance of round and elongate gametocytes can be best interpreted as infection with two concurrent species of Leucocytozoon in blue grouse. More detailed research on the life cycle is necessary to confirm if two species of Leucocytozoon exist in blue grouse.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of rapid methods and automation in microbiology 4 (1995), S. 0 
    ISSN: 1745-4581
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: A commercial DNA isolation kit was evaluated for simultaneous isolation of chromosomal and plasmid DNA from Yersina enterocolitica for polymerase chain reaction amplification. The genomic and plasmid DNA samples obtained by use of the kit were suitable for use in polymerase chain reactions both individually and in multiplex reactions. The results obtained by the use of the kit suggest that this kit may be applied to isolate both genomic and plasmid DNA from other microorganisms for polymerase chain reaction amplification.
    Type of Medium: Electronic Resource
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