Pseudozyma aphidis induces ethylene-independent resistance in plants

Kobi Buxdorf, Ido Rahat, Maggie Levy*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

15 Scopus citations


Species of the epiphytic fungus Pseudozyma are not pathogenic to plants and can be used as biocontrol agents against plant pathogens. Deciphering how they induce plant defense might contribute to their use for plant protection and expand our understanding of molecular plant-pathogen interactions. here we show that Pseudozyma aphidis isolate L12, which is known to secrete antimicrobial metabolites and to induce jasmonic acid- and salicylic acid-independent systemic resistance, can also activate local and systemic resistance in an ethylene-independent manner. We also show that P. aphidis localizes exclusively to the surface of the plant leaf and does not penetrate the mesophyll cells of treated leaves. We thus propose that P. aphidis acts via several mechanisms, and is an excellent candidate biocontrol agent.

Original languageAmerican English
Article numbere26273
JournalPlant Signaling and Behavior
Issue number11
StatePublished - 29 Aug 2013

Bibliographical note

Funding Information:
This work was supported partially by grant no. IS-4210-09 from the Binational Agricultural Research and Development (BARD) Fund.


  • Biocontrol
  • Botrytis cinerea
  • Epiphytic yeast-like fungus
  • Ethylene
  • Induced resistance


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