Journal of Chemical Ecology

, Volume 19, Issue 6, pp 1135–1141 | Cite as

A new cucurbitacin profile forCucurbita andreana: A candidate for cucurbitacin tissue culture

  • Fathi T. Halaweish
  • Douglas W. Tallamy


In addition to previously reported cucurbitacins B,1, and D,2, cucurbitacin E,3, and I,4, aglycones and their glucosides 2-O-β-glucopyranosyl-cucurbitacin E,5, and 2-O-β-glucopyranosyl-cucurbitacin I,6, were isolated and identified as constituents ofCucurbita andreana on the basis of MS, FD-MS, 1 H NMR and13C NMR spectroscopy. Also, 2-O-β-glucopy-ranosyl-cucurbitacin B, 7, cucurbitacin B glucoside was isolated and identified.

Key words

Cucurbita andreana cucurbitacins E and I glucosides phagostimulant tissue culture 


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Copyright information

© Plenum Publishing Corporation 1993

Authors and Affiliations

  • Fathi T. Halaweish
    • 1
  • Douglas W. Tallamy
    • 1
  1. 1.Department of Entomology & Applied EcologyCollege of Agricultural Sciences University of DelawareNewark

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