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LeEix1 functions as a decoy receptor to attenuate LeEix2 signaling

  • Maya Bar
  • , Miya Sharfman
  • , Adi Avni*
  • *Corresponding author for this work
  • Tel Aviv University

Research output: Contribution to journal › Article › peer-review

21 Scopus citations

Abstract

The receptors for the fungal elicitor EIX (LeEix1 and LeEix2) belong to a class of leucine-rich repeat cell-surface glycoproteins with a signal for receptor-mediated endocytosis. Both receptors are able to bind the EIX elicitor while only the LeEix2 receptor mediates defense responses. We show that LeEix1 acts as a decoy receptor and attenuates EIX induced internalization and signaling of the LeEix2 receptor. We demonstrate that BAK1 binds LeEix1 but not LeEix2. In plants where BAK1 was silenced, LeEix1 was no longer able to attenuate plant responses to EIX, indicating that BAK1 is required for this attenuation. We suggest that LeEix1 functions as a decoy receptor for LeEix2, a function which requires the kinase activity of BAK1.

Original languageEnglish
Pages (from-to)455-457
Number of pages3
JournalPlant Signaling and Behavior
Volume6
Issue number3
DOIs
StatePublished - Mar 2011

Funding

FundersFunder number
Israel Academy of Sciences and Humanities294/07
Israel Science Foundation

    Keywords

    • Bak1
    • Decoy receptor
    • Endocytosis
    • LRR-RLP
    • LeEix

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