Recognition of Cladosporium fulvum Ecp2 elicitor by non-host Nicotiana spp. is mediated by a single dominant gene that is not homologous to known Cf-genes

M.J.D. de Kock, H.M. Iskandar, B.F. Brandwagt, R. Laugé, P.J.G.M. de Wit, W.H. Lindhout

Research output: Contribution to journalArticleAcademicpeer-review

8 Citations (Scopus)

Abstract

Cladosporium fulvum is a fungal pathogen of tomato that grows exclusively in the intercellular spaces of leaves. Ecp2 is one of the elicitor proteins that is secreted by C. fulvum and is specifically recognized by tomato plants containing the resistance gene Cf-Ecp2. Recognition is followed by a hypersensitive response (HR) resulting in resistance. HR-associated recognition of Ecp2 has been observed in Nicotiana paniculata, N. sylvestris, N. tabacum and N. undulata that are non-host plants of C. fulvum. Absence of Ecp2-recognition did not lead to growth of C. fulvum on Nicotiana plants. We show that HR-associated recognition of Ecp2 is mediated by a single dominant gene in N. paniculata. However, based on PCR and hybridization analysis this gene is not homologous to known Cf-genes
Original languageEnglish
Pages (from-to)397-408
JournalMolecular Plant Pathology
Volume5
Issue number5
DOIs
Publication statusPublished - 2004

Keywords

  • cultured parsley cells
  • tobacco mosaic-virus
  • f-sp lycopersici
  • disease resistance
  • confers resistance
  • short arm
  • phytophthora-infestans
  • oligopeptide elicitor
  • pathogen phytophthora
  • functional expression

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