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Nine things to know about elicitins.

Lida Derevnina¹, Yasin F Dagdas¹, Juan Carlos De la Concepcion¹

¹The Sainsbury Laboratory, Norwich Research Park, Norwich, NR4 7UH, UK.

The New Phytologist

|September 2, 2016

Summary

This summary is machine-generated.

Elicitins are conserved proteins from oomycete pathogens that trigger plant defenses. The discovery of the elicitin response (ELR) receptor in wild potato advances understanding of plant immunity to these pathogens.

Keywords:

INF1 cell death elicitin response (ELR)elicitor hypersensitive response (HR)microbe-associated molecular patterns (MAMPs)oomycetes

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Area of Science:

Plant Pathology
Molecular Biology
Biochemistry

Background:

Elicitins are extracellular proteins produced by oomycete pathogens like Phytophthora and Pythium.
Initially identified for their ability to induce hypersensitive response (HR) and disease resistance in tobacco.
Recognized as microbe-associated molecular patterns (MAMPs) that elicit plant defenses across various species.

Purpose of the Study:

To provide a comprehensive review of elicitins and their role in plant immunity.
To summarize current knowledge on elicitin biology, highlighting key features.
To discuss the recent identification of the elicitin response (ELR) receptor.

Main Methods:

Literature review synthesizing existing research on elicitins.
Analysis of the structural conservation and functional roles of elicitins.
Discussion of the molecular mechanisms underlying plant recognition of elicitins.

Main Results:

Elicitins are broadly conserved among oomycetes and act as MAMPs.
Plant responses to elicitins involve complex defense pathways.
The elicitin response (ELR) receptor has been identified, mediating broad-spectrum elicitin recognition.

Conclusions:

Elicitins are crucial virulence factors and MAMPs in oomycete-plant interactions.
Understanding elicitin-receptor interactions is key to developing novel disease resistance strategies.
The identification of ELR represents a significant advancement in plant innate immunity research.