Journal of Chemical Ecology

, Volume 16, Issue 4, pp 1221–1236

Inactivation of baculovirus by quinones formed in insect-damaged plant tissues

  • Gary W. Felton
  • Sean S. Duffey

DOI: 10.1007/BF01021021

Cite this article as:
Felton, G.W. & Duffey, S.S. J Chem Ecol (1990) 16: 1221. doi:10.1007/BF01021021


The infectivity of the nuclear polyhedrosis virus, HzSNPV toHeliothis zea was significantly reduced when viral occlusion bodies were exposed to the plant phenolic chlorogenic acid in the presence of polyphenol oxidase. Chlorogenic acid is rapidly oxidized to the ortho-quinone, chlorogenoquinone, by foliar polyphenol oxidases of the tomato plant, Lycopersicon esculentum, when foliage is damaged during feeding by larvalH. zea.

Our results indicate that chlorogenoquinone, a powerful oxidizing agent, covalently binds to the occlusion bodies of HzSNPV and significantly reduces their digestibility and solubility under alkaline conditions. This binding is proposed to interfere with the infection process by impairing the release of infective virions in the midgut.

Key words

Baculovirusnuclear polyhedrosis virusplant phenolicspolyphenol oxidasetritrophic interactionsHeliothis zeaLepidopteraNoctuidaeLycopersicon esculentumhost plant resistancebiological control

Copyright information

© Plenum Publishing Corporation 1990

Authors and Affiliations

  • Gary W. Felton
    • 1
  • Sean S. Duffey
    • 1
  1. 1.Department of EntomologyUniversity of CaliforniaDavis