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  • 1980-1984  (2)
  • 1981  (2)
  • Low temperature adaptation  (1)
  • Salt tolerance
  • Torpedo marmorata
  • 1
    Electronic Resource
    Electronic Resource
    Low temperature effect on selective fertilization by pollen mixtures of wild and cultivated tomato species (1981)
    Springer
    Theoretical and applied genetics 59 (1981), S. 235-238 
    Details
    ISSN: 1432-2242
    Keywords: Low temperature adaptation ; Lycopersicon ; Pollen mixtures ; Selective fertilization
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary In vitro pollen germination of cultivated tomato, Lycopersicon esculentum Mill., is inhibited by an ambient temperature of 5°C, more so than pollen from a Peruvian ecotype of Lycopersicon hirsutum Humb. & Bonpl. originating from an altitude of 3200 m. The frequency of L. hirsutum gametes contributing to hybrid zygote formation is more than doubled when controlled fertilizations with pollen mixtures of the two species occurs at 12/6°C as compared to crosses with the same mixtures at 24/19°C. The results suggest that differential selection at the gametophytic level occurs in response to low temperature regimes. To our knowledge this is the first time in higher plants that alteration of an environmental factor has been demonstrated to change selection values of male gametophytes in a fashion predicted by the ecology of the parental sporophytes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00265501
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Immunohistochemical localization of cholinergic nerve terminals (1981)
    Springer
    Cell & tissue research 218 (1981), S. 355-373 
    Details
    ISSN: 1432-0878
    Keywords: Cholinergic nerve terminals ; Presynaptic plasma membrane ; Indirect immunofluorescence histochemistry ; Torpedo marmorata ; Mammals
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Most of the published light-microscopic methods for the localization of cholinergic nerve pathways present various difficulties of interpretation. The production and characterization of an antiserum that binds specifically to cholinergic terminals is described. The antiserum was raised to small synaptosomes prepared from the purely cholinergic electric organ of Torpedo marmorata. It was shown to lyse cholinergic synaptosomes in a mixed population derived from guinea-pig cortex. After partial purification by adsorption onto nonspecific antigens, it was used to label nerve endings in several tissues of Torpedo, rats and guinea pigs using indirect immunofluorescence histochemistry. The antiserum appears to provide a highly specific means of localizing cholinergic nerve endings in these tissues.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00210350
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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