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  • Electronic Resource  (2)
  • 1985-1989  (2)
  • 23.60  (1)
  • P. hybrida  (1)
  • Renzapride
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  • Electronic Resource  (2)
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  • 1
    Electronic Resource
    Electronic Resource
    Isolation and physicochemical characterization of mitochondrial DNA from cultured cells ofPetunia hybrida (1985)
    Springer
    Theoretical and applied genetics 69 (1985), S. 223-233 
    Details
    ISSN: 1432-2242
    Keywords: P. hybrida ; mtDNA ; Cell cultures
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Mitochondrial DNA ofPetunia hybrida was purified from cell suspension cultures. Up to 50% of the DNA could be isolated as supercoiled DNA molecules by CsCl-ethidium bromide density gradient centrifugation. The DNA purified from DNase-treated mitochondria bands at a single buoyant density of 1.760 gcm−3 in neutral density gradients and runs on agarose gels as a single band with an apparent molecular weight exceeding 30 megadaltons (Md). Summing of the restriction endonuclease fragment lengths indicates a mitochondrial genome size of at least 190 Md. Electron microscopic analysis reveals the presence of a heterogeneous population of circular DNA molecules, up to 60 Md in size. Small circular DNA molecules, ranging in size from 2–30 Md are present, but unlike in cultured cells of other plant species they do not form discrete size classes and furthermore, they constitute less than 5% of the total DNA content of the mitochondria. The restriction endonuclease patterns of mitochondrial DNA do not qualitatively alter upon prolonged culture periods (up to at least two years).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00662429
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Investigation of excited states of11B and7Li by means of thermal neutron capture on10B nuclei (1986)
    Springer
    The European physical journal 324 (1986), S. 271-281 
    Details
    ISSN: 1434-601X
    Keywords: 23.60 ; 21.10H ; 21.10M
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Theγ-radiation from the10B(n,γ) reaction is studied using an unpolarized target. More accurate values for energies of transitions in11B could be determined. No new levels have been found. TheQ value of this reaction: 11,454.1 (2)keV, is in agreement with earlier experiments. Also a new value for the cross section could be derived: 0.29 (4) barn, which is a factor 5 more accurate than earlier experiments. The10B(n, α)7 Li reaction, leading to the 478 keV state in7Li, is studied by means of polarized10B nuclei and polarized neutrons. The resulting anisotropy in the directional distribution of the7Li particles manifests itself in the Doppler broadening of the 478 keV line. Analysis of the line shape directly yields the conclusion, that the reaction proceeds for more than 96% through theJ=7/2 channel of11B in case of destructive channel interference of theJ=5/2 channel. Constructive channel interference is only possible if the reaction proceeds for more than 99.5% through theJ=7/2 channel. It appeared that the outcomingα and7Li particles are emitted predominantly in directions perpendicular to the nuclear orientation axis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01294580
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    Paper (German National Licenses)
    Fulltext
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