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Ethephon-induced fractional changes of pectic polysaccharides in developing cape gooseberry (Physalis peruviana L) fruits

Authors

  • Kausik Majumder,

    Corresponding author
    1. University College of Agriculture, Calcutta University, 35 Ballygunge Circular Road, Kolkata 700 019, India
    Current affiliation:
    1. Applied Biochemistry Division, Indian Institute of Chemical Biology (CSIR), 4 Raja S. C. Mullick Road, Kolkata 700 032, India.
    • Applied Biochemistry Division, Indian Institute of Chemical Biology (CSIR), 4 Raja S.C. Mullick Road, Kolkata 700 032, India
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  • Bibhas C Mazumdar

    1. University College of Agriculture, Calcutta University, 35 Ballygunge Circular Road, Kolkata 700 019, India
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Abstract

Pectic polysaccharides extracted from fruit tissue of cape gooseberry (Physalis peruviana L) at different maturity levels were fractionated and analyzed for galacturonic acid backbone molecules. Preharvest spray of the fruits at 7 days old with ethephon resulted in a higher accumulation of water-soluble and oxalate-soluble pectic fractions than non-treated fruits, while this treatment effectively enhanced the polygalacturonase enzyme activity necessary for maintenance of pectin degradation. Treatment with ethephon not only enhanced the solubilization rate but also resulted in a net increase in total pectic polymer content in developing cape gooseberry fruits. Copyright © 2005 Society of Chemical Industry

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