Against the grain: safeguarding rice from rice blast disease

Rice is the staple diet of more than three billion people. Yields must double over the next 40 years if we are to sustain the nutritional needs of the ever-expanding global population. Between 10% and 30% of the annual rice harvest is lost due to infection by the rice blast fungus Magnaporthe oryzae...

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Bibliographic Details
Published in:Trends in biotechnology (Regular ed.) 2009-03, Vol.27 (3), p.141-150
Main Authors: Skamnioti, Pari, Gurr, Sarah J
Format: Article
Language:English
Subjects:
Acquired immune deficiency syndrome
AIDS
Biological and medical sciences
Biological control
Biotechnology
blast disease
Crop diseases
Cultivars
disease control
disease resistance
Fundamental and applied biological sciences. Psychology
Fungal plant pathogens
Fungi
Fungicides
Fungicides, Industrial - administration & dosage
Genes
Genetic Enhancement - methods
genotype mixtures
Internal Medicine
literature reviews
Magnaporthe
Magnaporthe - drug effects
Magnaporthe - pathogenicity
Magnaporthe - physiology
Magnaporthe oryzae
Oryza - drug effects
Oryza - microbiology
Oryza - physiology
Oryza sativa
pesticide application
Phytopathology. Animal pests. Plant and forest protection
plant breeding
Plant Diseases - microbiology
Plants, Genetically Modified - drug effects
Plants, Genetically Modified - microbiology
Plants, Genetically Modified - physiology
Rice
transgenic plants
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Summary:Rice is the staple diet of more than three billion people. Yields must double over the next 40 years if we are to sustain the nutritional needs of the ever-expanding global population. Between 10% and 30% of the annual rice harvest is lost due to infection by the rice blast fungus Magnaporthe oryzae . Evaluation of genetic and virulence diversity of blast populations with diagnostic markers will aid disease management. We review the M. oryzae species-specific and cultivar-specific avirulence determinants and evaluate efforts towards generating durable and broad-spectrum resistance in single resistant cultivars or mixtures. We consider modern usage of fungicides and plant defence activators, assess the usefulness of biological control and categorize current approaches towards blast-tolerant genetically modified rice.
ISSN:0167-7799
1879-3096
DOI:10.1016/j.tibtech.2008.12.002