Comparison of five stem inoculation methods with respect to phytoalexin accumulation and Fusarium wilt development in carnation

R.P. Baayen*, R.M. Schrama

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

21 Citations (Scopus)

Abstract

Five methods of stem inoculation of carnations with conidial suspensions of Fusarium oxysporum f.sp. dianthi were compared for uptake of the suspension, induction of phytoalexin accumulation and wilt development. Inoculation was performed by incision of the stem across droplets of inoculum placed on leaves, or by injection of droplets into the stem. With both methods, higher inoculum dosages led to higher wilting rates and higher phytoalexin concentrations. Injection was more effective than incision since a lower inoculum dosage was required to obtain the same phytoalexin levels. Injection therefore appears the most promising technique for the development of routine screening methods for resistance based on phytoalexin accumulation.

Original languageEnglish
Pages (from-to)315-320
Number of pages6
JournalNetherlands Journal of Plant Pathology
Volume96
Issue number6
DOIs
Publication statusPublished - Nov 1990
Externally publishedYes

Keywords

  • dianthalexin
  • dianthramides
  • Dianthus caryophyllus
  • Fusarium oxysporum f.sp. dianthi
  • resistance screening

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