Ethylene binding changes in apple and morning glory during ripening and senescence

  • Sylvia M. Blankenship
  • Edward C. Sisler
Article

Abstract

Ethylene binding sites were measured during fruit ripening and morning glory flower senescence. Little change in ethylene binding was noted during these developmental stages, except a slight decline during the later stages of fruit ripening or flower senescence. The concentration of ethylene required to achieve 50% saturation of the binding sites was 0.14 μl/liter for both apple pulp and morning glory flowers. Ethylene binding sites were calculated to be 3.2×10−11 moles/kg and 3.8×10−9 moles/kg in apple and morning glory, respectively. It does not appear that changes seen in ethylene sensitivity during fruit ripening can be readily ascribed to changes in the number of ethylene binding sites in the tissue.

Keywords

Apple Fruit Scatchard Plot Ethylene Sensitivity Flower Senescence Morning Glory 

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Copyright information

© Springer-Verlag New York Inc. 1989

Authors and Affiliations

  • Sylvia M. Blankenship
    • 1
  • Edward C. Sisler
    • 1
  1. 1.Departments of Horticultural Science and BiochemistryNorth Carolina State UniversityRaleighUSA

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