Specialia

Experientia

, Volume 33, Issue 2, pp 151-152

First online:

A new class of phytoalexins from grapevines

  • P. LangcakeAffiliated withShell Research Limited, Sittingbourne Research Centre
  • , R. J. PryceAffiliated withShell Research Limited, Sittingbourne Research Centre

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Summary

Novel phytoalexins which have been isolated from grapevine leaves are oligomeric forms of the trihydroxy stilbene resveratrol, which co-occurs with these compounds. The characterization of one of these phytoalexins as a resveratrol dimer, designated ε-viniferin, is described as well as a model for its biosynthesis from resveratrol.