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  • 1965-1969  (3)
  • 1
    Electronic Resource
    Electronic Resource
    New Vitamin D Metabolite localized in Intestinal Cell Nuclei (1969)
    [s.l.] : Nature Publishing Group
    Nature 222 (1969), S. 171-172 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] It has also been reported that following the administration of both [4-14C] cholecalciferol and [1,2-3H] cholecalciferol to vitamin D deficient animals2'3, the intestinal iritracellular organelle with the highest concentration of radioactivity is the nucleus. The nature of this radioactivity is ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/222171a0
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Nitrogen fixation by growing cells and cell-free extracts of the bacillaceae (1967)
    Springer
    Archives of microbiology 55 (1967), S. 369-381 
    Details
    ISSN: 1432-072X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00406443
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Deoxyribonucleic acid base composition of species ofKlebsiella, Azotobacter andBacillus (1969)
    Springer
    Antonie van Leeuwenhoek 35 (1969), S. 275-286 
    Details
    ISSN: 1572-9699
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Methods of molecular taxonomy were used to study the genome or deoxyribonucleic acid (DNA) of different strains of five genera of nitrogen-fixing bacteria. The DNA base compositions of all strains ofKlebsiella pneumoniae (previously classified as strains ofAchromobacter sp.,Aerobacter aerogenes orK. pneumoniae) occupy a fairly narrow range of values from 56.7 to 62.5% G-C content. No significant difference was observed in the DNA base composition of bacteria which can fix molecular nitrogen and that of strains which do not fix nitrogen. Six strains of the speciesAzotobacter vinelandii and the one strain ofA. chroococcum tested possess similar DNA base composition. The strain ofAzotobacter agilis tested, however, had a DNA base composition different from these seven strains. The G-C content of the strains ofAzotomonas insolita falls within the broad range of thePseudomonas genus (55–70%), but the peritrichous flagellation of these strains eliminates them from this genus. Their classification still remains to be ascertained. Eleven strains of the speciesBacillus polymyxa andB. macerans formed two homogenous groups of organisms with different DNA base composition. The atypical strainB. polymyxa Hino is genetically similar to the strains of the speciesBacillus macerans and perhaps should be reclassified as such.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02219149
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    Paper (German National Licenses)
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