Genome-wide functional analysis reveals that infection-associated fungal autophagy is necessary for rice blast disease
-
- Michael J. Kershaw
- School of Biosciences, University of Exeter, Geoffrey Pope Building, Stocker Road, Exeter EX4 4QD, United Kingdom
-
- Nicholas J. Talbot
- School of Biosciences, University of Exeter, Geoffrey Pope Building, Stocker Road, Exeter EX4 4QD, United Kingdom
書誌事項
- 公開日
- 2009-09-15
- DOI
-
- 10.1073/pnas.0901477106
- 公開者
- Proceedings of the National Academy of Sciences
この論文をさがす
説明
<jats:p> To cause rice blast disease, the fungus <jats:italic>Magnaporthe oryzae</jats:italic> elaborates specialized infection structures called appressoria, which use enormous turgor to rupture the tough outer cuticle of a rice leaf. Here, we report the generation of a set of 22 isogenic <jats:italic>M. oryzae</jats:italic> mutants each differing by a single component of the predicted autophagic machinery of the fungus. Analysis of this set of targeted deletion mutants demonstrated that loss of any of the 16 genes necessary for nonselective macroautophagy renders the fungus unable to cause rice blast disease, due to impairment of both conidial programmed cell death and appressorium maturation. In contrast, genes necessary only for selective forms of autophagy, such as pexophagy and mitophagy, are dispensable for appressorium-mediated plant infection. A genome-wide analysis therefore demonstrates the importance of infection-associated, nonselective autophagy for the establishment of rice blast disease. </jats:p>
収録刊行物
-
- Proceedings of the National Academy of Sciences
-
Proceedings of the National Academy of Sciences 106 (37), 15967-15972, 2009-09-15
Proceedings of the National Academy of Sciences
