Effects of some natural volatile compounds on the pathogenic fungi Alternaria alternata and Botrytis cinerea

T. R. Hamilton-Kemp, C. T. McCracken, J. H. Loughrin, R. A. Andersen, D. F. Hildebrand

Research output: Contribution to journalArticlepeer-review

128 Scopus citations

Abstract

A bioassay system was developed to test the effects of volatile compounds on the growth of hyphae from germinating fungal spores. Volatiles from crushed tomato leaves inhibited hyphal growth of two fungal pathogens, Alternaria alternata and Botrytis cinerea. Aldehydes, including C6 and C9 compounds formed by the lipoxygenase enzyme pathway upon wounding leaves, inhibited growth of both fungal species. Terpene hydrocarbons, 2-carene and limonene, had no significant effect on hyphal growth. The quantities of volatile compounds in the vapor phase of the bioassay system were measured by direct headspace sampling and GC analysis.

Original languageEnglish
Pages (from-to)1083-1091
Number of pages9
JournalJournal of Chemical Ecology
Volume18
Issue number7
DOIs
StatePublished - Jul 1992

Keywords

  • aldehydes
  • Alternaria alternata
  • Botrytis cinerea
  • E-2-hexenal
  • Headspace
  • hyphae
  • lipoxygenase
  • Lycopersicon esculentum
  • monoterpenes
  • spores
  • wounding

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Biochemistry

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