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Action of Boron on Ethylene Production and Lipoxygenase Activity in Microsomes from Sunflower Cotyledons

  • Andrés Belver
  • Pilar Rodriguez
  • Marta Roldán
  • Juan P. Donaire

Abstract

Conversion of ACC to ethylene by microsomes isolated from sunflower cotyledons grown in a medium with 50 ppm of boron was strongly increased relative to membranes developed under 10 ppm or without boron, and SHAM, BHT and SOD provoked a high inhibition. A strong increase in ethylene takes place upon incubating ACC and linolenic acid with crude microsomes or with a protein fraction which includes lipoxygenase activity.

Keywords

Linolenic Acid Ethylene Production Ethylene Formation Helianthus Annuus Lipoxygenase Activity 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    D. V. Lynch, S. Sridhara, and J. E. Thompson, Lipoxygenase-generated hydroperoxides account for the nonphysiological features of ethylene formation from 1-aminocyclopropane-l-carboxylic acid by microsomal membranes of carnation, Planta 164: 121 (1985).CrossRefGoogle Scholar
  2. 2.
    J. P. Donaire and A. Belver, Effect of boron on metabolic changes in sunflower cotyledons grown under dark and light conditions. J. Plant Physiol., 120: 389 (1985).CrossRefGoogle Scholar
  3. 3.
    M. A. Markwell, S. M. Hassa, L. Bieber, and N. E. Tolbert, A modification of the Lowry procedure to simplify protein determination in membrane and lipoprotein samples, Anal. Biochem., 87: 206 (1978).PubMedCrossRefGoogle Scholar
  4. 4.
    A. Belver and J. P. Donaire, Partial purification of soluble lipoxygenase of sunflower cotyledons: action of boron on the enzyme and lipid constituents, Z. Pflanzenphysiol., 109: 309 (1983).Google Scholar

Copyright information

© Plenum Press, New York 1987

Authors and Affiliations

  • Andrés Belver
    • 1
  • Pilar Rodriguez
    • 1
  • Marta Roldán
    • 1
  • Juan P. Donaire
    • 1
  1. 1.Department of BiochemistryEstación Experimental del Zaidín, (C.S.I.C.)GranadaSpain

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