Pseudozyma aphidis induces ethylene-independent resistance in plants

Kobi Buxdorf; Ido Rahat; Maggie Levy

doi:10.4161/psb.26273

Pseudozyma aphidis induces ethylene-independent resistance in plants

Kobi Buxdorf
, Ido Rahat
, Maggie Levy^*

^*Corresponding author for this work

Department of Plant Pathology and Microbiology

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

17 Scopus citations

Abstract

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 language	English
Article number	e26273
Journal	Plant Signaling and Behavior
Volume	8
Issue number	11
DOIs	https://doi.org/10.4161/psb.26273
State	Published - 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.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 2 Zero Hunger

Keywords

Biocontrol
Botrytis cinerea
Epiphytic yeast-like fungus
Ethylene
Induced resistance

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10.4161/psb.26273

Cite this

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title = "Pseudozyma aphidis induces ethylene-independent resistance in plants",

abstract = "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.",

keywords = "Biocontrol, Botrytis cinerea, Epiphytic yeast-like fungus, Ethylene, Induced resistance",

author = "Kobi Buxdorf and Ido Rahat and Maggie Levy",

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T1 - Pseudozyma aphidis induces ethylene-independent resistance in plants

AU - Buxdorf, Kobi

AU - Rahat, Ido

AU - Levy, Maggie

N1 - Funding Information: This work was supported partially by grant no. IS-4210-09 from the Binational Agricultural Research and Development (BARD) Fund.

PY - 2013/8/29

Y1 - 2013/8/29

N2 - 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.

AB - 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.

KW - Biocontrol

KW - Botrytis cinerea

KW - Epiphytic yeast-like fungus

KW - Ethylene

KW - Induced resistance

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Pseudozyma aphidis induces ethylene-independent resistance in plants

Abstract

Bibliographical note

UN SDGs

Keywords

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