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Rice Blast Disease
Pathogen biology. Cell biology of pathogenesis. Signalling systems and gene expression regulating appressorium formation in magnaporthe grisea. Genetic regulation of sporulation in the rice blast fungus. Genetic interactions in magnaporthe grisea that affect cultivar specific avirulence/virulence on rice. Genomic structure and variability in pyricularia grisea. Molecular genetic approach to the study of cultivar specificity in the rice blast fungus. Avirulence genes and mechanisms of genetic instability in the rice blast fungus. Host plant resistance. International collaboration on breeding for resistance to rice blast. Present knowledge of rice resistance genetics and strategies for magnapo...
Factors which May Affect General Resistance in Rice to Pyricularia Oryzae Cav
A study of certain factors which may affect general resistance in rice to Pyricularia oryzae Cav. was made in the laboratory by inoculating detached leaves in Petri dishes and by inoculating potted plants in the greenhouse. The inoculation of potted plants in the greenhouse was made primarily in order to find varieties with lesion types 3 and 4. Unfortunately, plants grew poorly so that studies with detached leaves and greenhouse inoculations had to be made simultaneously with a limited number of varieties and isolates. inoculum of P. oryzae was initially produced on 2% rice polish, agar, but culture on fresh, sterilized, crushed leaves gave better results and inoculum from this source was u...
Advances in Genetics, Genomics and Control of Rice Blast Disease
Rice blast, caused by the fungal pathogen Magnaporthe grisea, is one of the most destructive rice diseases worldwide and destroys enough rice to feed more than 60 million people annually. Due to high variability of the fungal population in the field, frequent loss of resistance of newly-released rice cultivars is a major restraint in sustainable rice production. In the last few years, significant progress has been made in understanding the defense mechanism of rice and pathogenicity of the fungus. The rice blast system has become a model pathosystem for understanding the molecular basis of plant-fungal interactions due to the availability of both genomes of rice and M. grisea and a large collection of genetic resources. This book provides a complete review of the recent progress and achievements on genetic, genomic and disease control of the disease. Most of the chapters were presented at the 4th International Rice Blast Conference held on October 9-14, 2007 in Changsha, China. This book is a valuable reference not only for plant pathologists and breeders working on rice blast but also for those working on other pathysystems in crop plants.
