Independent elicitation of the oxidative burst and phytoalexin formation in cultured plant cells

David Davis, Jeffery Merida, Laurent Legendre, Philip Low, Peter Heinstein

Research output: Contribution to journalArticle

64 Scopus citations

Abstract

Analysis of components in a crude elicitor preparation (AP-elicitor) from the phytopathogenic fungus Verticillium dahliae 277 demonstrated that a protein moiety appears to be the specific extracellular signal responsible for phytoalexin induction in cotton and soybean cell suspension cultures. However, the carbohydrate portion of the AP-elicitor appeared to be responsible for the induction of the hydrogen peroxide burst. A similar analysis of the endogeneous elicitor polygalacturonic acid (degree of polymerization = 20) showed that only the oxidative activity was induced in soybean and cotton cells but not the formation of phytoalexins.

Original languageEnglish (US)
Pages (from-to)607-611
Number of pages5
JournalPhytochemistry
Volume32
Issue number3
DOIs
StatePublished - Jan 1 1993

Keywords

  • cell suspension cultures
  • elicitation
  • Glycine max
  • Gossypium hirsutum
  • Leguminosae
  • Malvaceae
  • oxidative burst.
  • phytoalexins
  • Verticillium dahliae

ASJC Scopus subject areas

  • Drug Discovery
  • Organic Chemistry
  • Molecular Biology
  • Biochemistry
  • Plant Science

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