By Gurdev S. Khush, K.K. Jena (auth.), Guo-Liang Wang, Barbara Valent (eds.)
Rice blast, because of the fungal pathogen Magnaporthe grisea, is without doubt one of the so much damaging rice ailments world wide and destroys sufficient rice to feed greater than 60 million humans each year. because of excessive variability of the fungal inhabitants within the box, common lack of resistance of newly-released rice cultivars is a tremendous restraint in sustainable rice construction. within the previous few years, major growth has been made in knowing the protection mechanism of rice and pathogenicity of the fungus. The rice blast process has develop into a version pathosystem for knowing the molecular foundation of plant-fungal interactions a result of availability of either genomes of rice and M. grisea and a wide number of genetic assets. This publication offers an entire evaluate of the new growth and achievements on genetic, genomic and affliction keep an eye on of the affliction. many of the chapters have been provided on the 4th overseas Rice Blast convention hung on October 9-14, 2007 in Changsha, China. This ebook is a worthwhile reference not just for plant pathologists and breeders engaged on rice blast but in addition for these engaged on different pathysystems in crop plants.
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Extra resources for Advances in genetics, genomics and control of rice blast disease
However, the formation of mature, melanized appressoria is regulated by the PMK1 (Pathogenicity MAP Kinase 1) gene (Xu and Hamer, 1996). Deletion of PMK1 blocks appressorium formation and plant infection. The pmk1 deletion mutant fails to form appressoria on any artificial and plant surfaces tested, but it still recognizes hydrophobic surfaces and responds to extracellular cAMP and forms subapical swollen bodies that are irregular in shape, unmelanized, and smaller than normal appressoria. PMK1 also is essential for invasive growth after penetration (Xu and Hamer, 1996).
Major increases in rice production occurred during last four decades due to the adoption of green revolution technology. However, the rate of growth of rice production has slowed down. 21% during 2000–2006. World rice stocks are at the lowest level since 1974 and price of rice is showing upward trend in the domestic and international markets. The population of rice consumers is continuing to increase and demand for rice is also going up due to improved living standards particularly in Africa. According to various estimates we will have to produce 30% more rice by 2030.
Zhu, L. H. (2006). A B-lectin receptor kinase gene conferring rice blast resistance. Plant J 46, 794–804 Conaway-Bormans, C. , Marchetti, M. , Johnson, C. , McClung, A. , & Park, W. D. (2003). Molecular markers linked to the blast resistance gene Pi-z in rice for use in markerassisted selection. Theor Appl Genet 107, 1014–1020 Du, P. , Loan, L. , & Sang, N. D. (2007). Blast research in Mekong river delta of Vietnam. In: JIRCAS (Japan International Research Center for Agricultural Sciences, Tsukuba, Japan) working report No.