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  • 23.20  (3)
  • Beta vulgaris  (3)
  • Springer  (6)
  • American Chemical Society
  • 1985-1989  (6)
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  • Springer  (6)
  • American Chemical Society
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Year
  • 1
    Electronic Resource
    Electronic Resource
    Investigations on an interspecific hybrid involving three species of the genus Beta, with special reference to isozyme polymorphism (1986)
    Springer
    Theoretical and applied genetics 73 (1986), S. 261-266 
    Details
    ISSN: 1432-2242
    Keywords: Beta vulgaris ; Sugar beet ; Beta lomatogona ; Beta procumbens ; Interspecific hybrid ; Isozyme polymorphism
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary A tetraploid (2n=36) interspecific hybrid was obtained involving three species belonging to three different sections of Beta. The hybrid was highly sterile and did not show apomixis. At meiosis, up to nine bivalents were observed, most probably resulting from autosyndesis of the chromosomes of Beta lomatogona. For nine isozyme systems, individual enzyme expression was investigated in the parental species and in the hybrids. No silencing of genes or genomes was observed. In the case of some polymeric enzymes interspecific heteropolymers could be detected.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00289283
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  • 2
    Electronic Resource
    Electronic Resource
    Monosomic additions in beet (Beta vulgaris) carrying extra chromosomes of B. procumbens (1988)
    Springer
    Theoretical and applied genetics 76 (1988), S. 656-664 
    Details
    ISSN: 1432-2242
    Keywords: Beta vulgaris ; Beta procumbens ; Alien monosomic additions ; Plant development in vivo ; Development in vitro
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Alien monosomic additions in beet (Beta vulgaris), each carrying one of the nine chromosomes of B. procumbens, were grown in vivo and in vitro to study the effect of the alien chromosomes on plant development. All additional chromosomes caused a reduction of the growth rate in vivo, which, in one case was so strong that some of the plants died as seedlings. In general, the morphological plant characteristics were not very useful to distinguish the addition types; this could have been the results of the wide variation in the recipient parent. However, some developmental characteristics proved to be highly chromosome-specific; for plants in vivo this was annuality, in combination with early or late flowering. If grown in vitro, chromosome specificity was observed for growth type (rosette or elongated stem), occurrence and rate of vitrification, occurrence and morphology of wound callus, formation of additional meristems on the midribs of leaves, formation of roots and a specific reaction to benzylaminopurine (BAP) the medium. Two chromosome types of B. procumbens caused resistance to the beet cyst nematode.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00303509
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  • 3
    Electronic Resource
    Electronic Resource
    Monosomic additions in beet (Beta vulgaris) carrying extra chromosomes of Beta procumbens (1988)
    Springer
    Theoretical and applied genetics 76 (1988), S. 577-586 
    Details
    ISSN: 1432-2242
    Keywords: Beta vulgaris ; Beta procumbens ; Alien monosomic additions ; Isozyme markers ; Chromosome identification
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Eleven isozyme systems were used to identify the extra chromosomes, originating from Beta procumbens, in progenies of 33 monosomic additions in beet (B. vulgaris). Nine groups of monosomic additions could be distinguished, representing the nine different chromosome types of B. procumbens.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00260912
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  • 4
    Electronic Resource
    Electronic Resource
    Gyromagnetic ratios of 4+ and 6+ states in156Gd and158Gd (1988)
    Springer
    The European physical journal 331 (1988), S. 277-286 
    Details
    ISSN: 1434-601X
    Keywords: 23.20 ; 27.70
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The followingg-factors have been derived from time integral measurements of γ-γ angular correlations in the static magnetic hyperfine field of magnetized gadolinium metal probes:156Gd:g(4 1 + )=+0.310(19)g(6 1 + )=+0.25(21)g(4 3 + , 1511 keV)=+0.809(27)158Gd:g(4 1 + )=+0.409(15). The 5.35d 156Tb sources were produced by the reaction156Gd(d, 2n)156Tb in our cyclotron. A carrier-free 150y 158Tb source was obtained from ISOLDE/CERN. In comparison with the precisely knowng-factors of the 2 1 + states,g(2 1 su+ ,156Gd) =+0.386(4) andg(2 1 + ,158Gd)=0.381(4), we observe a large reduction for the156Gd 4 1 + state whereasg increases slightly for158Gd. The half-life of the 4 1 + state of158Gd was remeasured as158Gd:T 1/2(4 1 + )=148(2) ps. A measurement of the rotation in the 4 3 + state of156Gd in external magnetic fields of various strengths up toB ext=9.5 T did not confirm the anomalous dependence of the magnetic hyperfine field in gadolinium metal on the external field, which has been reported by Persson et al. [29].
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01355597
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  • 5
    Electronic Resource
    Electronic Resource
    Conversion processes in superheavy and giant atoms (1986)
    Springer
    The European physical journal 323 (1986), S. 139-155 
    Details
    ISSN: 1434-601X
    Keywords: 23.20 ; 25.70 ; 36.90
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Conversion of bound state electrons and internale +,e −-pair creation in superheavy and giant atoms are investigated. We consider various nuclear transitions of multipolaritiesE0, EL andML (L≧1) in superheavy atoms with Z〉109. We are concerned in particular with the pecularities of conversion processes in supercritical systems. Our theoretical studies are confronted with the prominent peak structures observed in positron spectra of very heavy collision systems.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01290305
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  • 6
    Electronic Resource
    Electronic Resource
    Yrast states in81Br and82Br (1986)
    Springer
    The European physical journal 324 (1986), S. 127-137 
    Details
    ISSN: 1434-601X
    Keywords: 21.10 ; 23.20 ; 27.50+e
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Levels in81Br and82Br have been investigated up to spin 21/2 and 10ħ, respectively, on the basis of in-beamγ-ray spectroscopy inα and deuteron induced reactions. In81Br a 3-quasiparticle (qp) band built on a (13/2−) level at 2.55 MeV has been established besides the bands built on thep 3/2 andg 9/2 proton excitations. The 3qp configuration is interpreted to include at least oneg 9/2 proton. The structures observed in the doublyodd nucleus82Br are associated withg 9/2 proton and/or neutron excitations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01325124
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