Effector‐triggered susceptibility by the rice blast fungus Magnaporthe oryzae

Author:

Oliveira‐Garcia Ely1ORCID,Yan Xia2ORCID,Oses‐Ruiz Miriam3ORCID,de Paula Samuel1ORCID,Talbot Nicholas J.2ORCID

Affiliation:

1. Department of Plant Pathology and Crop Physiology Louisiana State University Agricultural Center Baton Rouge LA 70803 USA

2. The Sainsbury Laboratory University of East Anglia Norwich Research Park Norwich NR4 7UH UK

3. IMAB Public University of Navarre (UPNA) Campus Arrosadia 31006 Pamplona Navarra Spain

Abstract

SummaryRice blast, the most destructive disease of cultivated rice world‐wide, is caused by the filamentous fungus Magnaporthe oryzae. To cause disease in plants, M. oryzae secretes a diverse range of effector proteins to suppress plant defense responses, modulate cellular processes, and support pathogen growth. Some effectors can be secreted by appressoria even before host penetration, while others accumulate in the apoplast, or enter living plant cells where they target specific plant subcellular compartments. During plant infection, the blast fungus induces the formation of a specialized plant structure known as the biotrophic interfacial complex (BIC), which appears to be crucial for effector delivery into plant cells. Here, we review recent advances in the cell biology of M. oryzae–host interactions and show how new breakthroughs in disease control have stemmed from an increased understanding of effector proteins of M. oryzae are deployed and delivered into plant cells to enable pathogen invasion and host susceptibility.

Funder

Louisiana Board of Regents

Agricultural Center, Louisiana State University

Ministerio de Ciencia e Innovación

Publisher

Wiley

Subject

Plant Science,Physiology

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