Emerging Insights into the Functions of Pathogenesis-Related Protein 1

Date

2017

Authors

Breen, Susan
Williams, Simon
Solomon, Peter
OUTRAM, Megan A
Kobe, Bostjan

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Publisher

Elsevier

Abstract

The members of the pathogenesis-related protein 1 (PR-1) family are among the most abundantly produced proteins in plants on pathogen attack, and PR-1 gene expression has long been used as a marker for salicylic acid-mediated disease resistance. However, despite considerable interest over several decades, their requirement and role in plant defence remains poorly understood. Recent reports have emerged demonstrating that PR-1 proteins possess sterol-binding activity, harbour an embedded defence signalling peptide, and are targeted by plant pathogens during host infection. These studies have reenergised the field and provided long-awaited insights into a possible PR-1 function. Here we review the current status of PR-1 proteins and discuss how these recent advances shed light on putative roles for these enigmatic proteins.

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Citation

Source

Trends in Plant Science

Type

Journal article

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Restricted until

2099-12-31