Induced inaccessibility in barley cells exposed to extracellular material released by non-pathogenic powdery mildew conidia

Keiko Fujita, Tomoko Suzuki, Hitoshi Kunoh, Tim L.w. Carver, Barry John Thomas, Sarah Gurr, Tomonori Shiraishi

Research output: Contribution to journalArticlepeer-review

10 Citations (SciVal)

Abstract

Before germinating, conidia of Blumeria graminis f. sp. hordei (Bgh) and tritici (Bgt) and Erysiphe pisi (Ep) rapidly released extracellular material (ECM) onto barley coleoptile cells. More was released if full rather than partial cell contact was made. Within 5–6.5 h of receiving ECM from Ep or Bgt (non-pathogens) cells showed induced inaccessibility to challenger Bgh. This effect was greater for Ep than Bgt where full contact was required. Abiotic particles and ECM from Bgh did not affect cells' accessibility to subsequent challenger attack by Bgh. This induced inaccessibility must be due to active component(s) within conidial ECM.
Original languageEnglish
Pages (from-to)169-178
Number of pages10
JournalPhysiological and Molecular Plant Pathology
Volume64
Issue number4
DOIs
Publication statusPublished - 01 Apr 2004

Keywords

  • Accessibility–inaccessibility
  • Barley
  • Blumeria graminis f. sp. hordei
  • Blumeria graminis f. sp. tritici
  • Erysiphe pisi
  • Extracellular material

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