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Topic: Magnaporthe grisea

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	Magnaporthe grisea - Wikipedia, the free encyclopedia
		Magnaporthe grisea, also commonly know as rice blast fungus, is a plant-pathogenic fungus that causes a disease affecting rice, and can also infect a number of other agriculturally important cereals including wheat, rye and barley, causing diseases called blast disease or blight disease.
		grisea outbreaks are controlled through the application of expensive and potentially hazardous fungicides.
		Grisea may be used as a biological weapon by a terrorist organization.
	en.wikipedia.org /wiki/Magnaporthe_grisea (942 words)

	Research Interests
		Magnaporthe grisea Pth11p is a novel plasma membrane protein that mediates appressorium differentiation in response to inductive substrate cues.
		Isolation of the mating-type genes of the phytopathogenic fungus Magnaporthe grisea using genomic subtraction.
		Characterization of the heterokaryotic and vegetative diploid phases of Magnaporthe grisea.
	www.oznet.ksu.edu /plantpath/valentlab/publications.asp (1033 words)

	Dept. of Plant Path. > People
		Our research is on the genetics of avirulence/virulence in Magnaporthe grisea, the incitant of the rice blast disease, and on the genes for resistance in rice.
		Our present research is to obtain estimates of the number of genes controlling interactions with host plants, determine the patterns of interactions between genes of the pathogen, the relationship of genetic interactions to particular host-pathogen interaction phenotypes, the cloning of these genes, and the genetic structure of the clustered resistance genes in rice.
		Genetic analysis of avirulence/virulence of an isolate of Magnaporthe grisea from a rice field in Texas.
	www.plantpath.wisc.edu /fac/ahe.htm (358 words)

	CNRS - Analysis of the genome of the rice pathogenic fungus
		Magnaporthe grisea is the fungus responsible for the main disease that affects rice, rice blast.
		In an article published on April 21 in Nature, the researchers analyzed the genome of Magnaporthe grisea, the first fungus that is pathogenic to plants to be fully sequenced.
		The sequencing of the Magnaporthe grisea genome also allowed for the construction of ADN chips that are representative of the 11,109 genes of this organism.
	www2.cnrs.fr /en/336.htm (645 words)

	Rice Genetics Chapter (Site not responding. Last check: 2007-11-04)
		Rice blast disease caused by Magnaporthe grisea is one of the most devastating diseases of rice worldwide.
		grisea with rice and have genetically identified the corresponding disease resistance gene.
		Genome organization of Magnaporthe grisea: Integration of genetic maps, clustering of transposable elements, and identification of genome duplications and rearrangements.
	www.plantpath.wisc.edu /pdru/Leong/rice_project.html (783 words)

	The genome sequence of the rice blast fungus Magnaporthe grisea : Nature
		The genome sequence of the rice blast fungus Magnaporthe grisea
		Magnaporthe grisea is the most destructive pathogen of rice worldwide and the principal model organism for elucidating the molecular basis of fungal disease of plants.
		Magnaporthe grisea &author=Ralph A. Dean, Nicholas J. Talbot, Daniel J. Ebbole, Mark L. Farman, Thomas K. Mitchell et al.
	www.nature.com /nature/journal/v434/n7036/abs/nature03449.html (452 words)

	Pyricularia grisea
		Rice blast,caused by the ascomycete fungus Pyricularia grisea (teleomorph: Magnaporthe grisea), is a principal
		Over one thousand isolates of Pyricularia grisea from rice in the United States, especially from Arkansas, the main rice production state in U.S., were examined for vegetative compatibility, MGR586 DNA fingerprint diversity, and mating type based on hybridization with the mat1-1 and mat1-2 sexual mating type alleles.
		grisea and should allow large numbers of individuals within a population to be assessed for vegetative compatibility.
	www.uark.edu /ua/jcorrell/pyricularia.htm (399 words)

	Researchers uncover sequence of major rice pathogen
		grisea undoubtedly produces toxins which may enable it to be a more effective pathogen.
		Abstract: Magnaporthe grisea is the most destructive pathogen of rice worldwide and the principal model organism for elucidating the molecular basis of fungal disease of plants.
		The M. grisea genome has been subject to invasion and proliferation of active transposable elements, reflecting the clonal nature of this fungus imposed by widespread rice cultivation.
	www.eurekalert.org /pub_releases/2005-04/ncsu-rus042105.php (731 words)

	Magnaporthe - MicrobeWiki
		al., "The genome sequence of the rice blast fungus Magnaporthe grisea."
		Because it is pathogenic, Magnaporthe grisea also has an infectious life cycle, which is asexual.
		Magnaporthe grisea is also considered a model organism for the study of fungal phytopathogenicity and host-parasite interactions.
	microbewiki.kenyon.edu /index.php/Magnaporthe (524 words)

	agro fungicides
		In our research, we use Magnaporthe grisea, the causal agent of rice blast disease, as a model organism to study plant-pathogen interactions and infection-related morphogenesis at a biochemical and molecular level.
		grisea is a filamentous ascomycete and it causes probably the most severe disease on cultivated rice.
		The antifungal activity on planta is assessed on plants infected with the respective pathogen for example Magnaporthe grisea on rice or barely.
	www.ibwf.de /funagro_index.htm (898 words)

	BioMed Central \| Full text \| 'PACLIMS': A component LIM system for high-throughput functional genomic analysis
		Using this platform, we are seeking to elucidate the functions of the approximately 11,000 genes in the thirty-eight megabase genome of this fungus [8].
		grisea is the causal agent of rice blast disease, the most devastating disease of rice worldwide [9].
		Balhadère PV, Foster AJ, Talbot NJ: Identification of pathogenicity mutants of the rice blast fungus Magnaporthe grisea by insertional mutagenesis.
	www.biomedcentral.com /1471-2105/6/94 (2760 words)

	PG-IV: S5 - The AVRCO39 Locus of the Rice Blast Fungus Magnaporthe grisea (Site not responding. Last check: 2007-11-04)
		The AVRCO39 Locus of the Rice Blast Fungus Magnaporthe grisea
		A Magnaporthe grisea cultivar specificity gene toward rice cultivar CO39 was previous mapped to one arm of chromosome 1 between RFLP markers CH5-120H and 5-10-F (Smith, J.R. and S. Leong.
		grisea strain Guy11 using portions of the 7.2 kb region suggest that an alternate allele is not present, or if present, has undergone extensive mutation.
	www.intl-pag.org /4/abstracts/s5.html (214 words)

	PLS Faculty - Marc Orbach (Site not responding. Last check: 2007-11-04)
		My research program uses Magnaporthe grisea, the fungal pathogen responsible for the rice blast disease, as a model system to study host-pathogen interactions at the molecular and biochemical level.
		grisea because of the apparent ability of this pathogen to rapidly overcome host resistance in the field.
		Orbach, M.J., Chumley, F.G., and Valent, B. Evidence for B chromosomes and translocations in the karyotypes of Magnaporthe grisea pathogens of diverse grasses.
	ag.arizona.edu /PLS/faculty/orbach.html (351 words)

	MGOS - Magnaporthe Grisea Oryza Sativa Database
		Rice blast disease, caused by the fungus Magnaporthe grisea, is a leading constraint to rice production and is a serious threat to food security worldwide.
		The goal of this project is to elucidate the basis of plant resistance through a comprehensive analysis of the molecular events that occur during pathogen-host recognition and the subsequent defense responses.
		The continuation of the project has been funded by NSF-MGS #0627159 titled Community Annotation Database for Magnaporthe grisea to PIs Cari Soderlund (UA), Marc Orbach (UA), and Barbara Valent (KSU).
	www.mgosdb.org (138 words)

	Magnaporthe grisea Pth11p Is a Novel Plasma Membrane Protein That Mediates Appressorium Differentiation in Response to ...
		Magnaporthe grisea Pth11p Is a Novel Plasma Membrane Protein That Mediates Appressorium Differentiation in Response to Inductive Substrate Cues -- DeZwaan et al.
		Beckerman, J., and Ebbole, D., a gene encoding a fungal hydrophobin of Magnaporthe grisea, is involved in surface recognition.
		Talbot, N.J. (1995) Having a blast: Exploring the pathogenicity of Magnaporthe grisea.
	www.plantcell.org /cgi/content/full/11/10/2013 (8143 words)

	PPA660: Lecture 6 - Penetration
		grisea, the cell wall is highly melanized, except for a region over the host cell called the appressorial pore.
		Mitchell, T. and Dean, R. The cAMP-dependent protein kinase catalytic subunit is required for appressorium formation and pathogenesis by the rice blast fungus Magnaporthe grisea.
		Xu, J. and Hamer, J. MAP kinase and cAMP signaling regulate infection structure formation and pathogenic growth in the rice blast fungus Magnaporthe grisea.
	www.ca.uky.edu /agcollege/plantpathology/farman/ppa66L6.htm (889 words)

	Dr. Marc Orbach
		grisea have identified several avirulence genes that determine what their products are and how these products interact with host plants to induce host defenses.
		Regions of microsynteny in Magnaporthe grisea and Neurospora crassa.
		Electrophoretic karyotypes of Magnaporthe grisea pathogens of diverse grasses.
	ag.arizona.edu /PLP/faculty/pages/orbach.html (484 words)

	RiceBlast Org
		Magnaporthe grisea, the causal agent of rice blast, to the world's food supply.
		grisea is able to evolve rapidly and overcome major gene resistance.
		The entire draft genome of Magnaporthe grisea has been sequenced and released in collaboration with Ralph Dean's Fungal Genomics Laboratory, NCSU and the Whitehead Institute.
	www.riceblast.org (168 words)

	Agilent Technologies Expands Custom Microarray Offering with Industry's First Shared-Design Program
		The first two organisms to be made available through this program are Caenorhabditis elegans, a worm that is a popular model organism for research, and Magnaporthe grisea, a fungus that causes rice blast disease.
		Magnaporthe grisea is a filamentous fungus that causes rice blast disease, resulting in the loss of enough rice to feed 60 million people each year.
		Besides causing significant economic damage, rice blast is a highly characterized organism that serves as a model for scientists studying filamentous fungi that cause other cereal and crop diseases.
	www.bioportfolio.com /news/agilent_47.htm (851 words)

	Genome Biology \| Full text \| Novel G-protein-coupled receptor-like proteins in the plant pathogenic fungus Magnaporthe ...
		grisea is a powerful model system to study the pathogenicity determinants required for plant cell-surface recognition and production of an appressorium, a specialized structure required to penetrate the plant surface [19,20].
		grisea is amenable to molecular genetic manipulation and the subject of large-scale genome-wide functional studies following the recent completion of a draft genome sequence [21].
		grisea is required for development of the appressorium [26].
	genomebiology.com /2005/6/3/R24 (5610 words)

	Chromosome Walking to the AVR1-CO39 Avirulence Gene of Magnaporthe grisea: Discrepancy Between the Physical and Genetic ...
		grisea strain 2539 to be avirulent on rice cultivar
		grisea genome by hybridization to Southern blots of CHEF-resolved
		Origins of Host-Specific Populations of the Blast Pathogen Magnaporthe oryzae in Crop Domestication With Subsequent Expansion of Pandemic Clones on Rice and Weeds of Rice
	www.genetics.org /cgi/content/full/150/3/1049 (5821 words)

	Woronin Body Function in Magnaporthe grisea Is Essential for Efficient Pathogenesis and for Survival during Nitrogen ...
		Magnaporthe grisea is an ascomycetous fungus that causes devastating
		Balhadère, P., Foster, A., and Talbot, N.J. Identification of pathogenicity mutants of the rice blast fungus Magnaporthe grisea by insertional mutagenesis.
		Talbot, N.J. On the trail of a cereal killer: Exploring the biology of Magnaporthe grisea.
	www.plantcell.org /cgi/content/full/16/6/1564 (6142 words)

	Early Expression of the Calmodulin Gene, Which Precedes Appressorium Formation in Magnaporthe grisea, Is Inhibited by ...
		grisea conidia were placed on a polystyrene petri dish surface in 100 µl of water or water containing various additions.
		grisea conidia is thought to be used to attach the conidia to a surface (11).
		grisea is induced in the early stages in conidial differentiation.
	jb.asm.org /cgi/content/full/181/11/3571 (5134 words)

	NCSU - International Rice Blast Project Statement of Intent
		This statement is a formal announcement of our intention to obtain the full genome sequence of the fungus responsible for the most serious disease of cultivated rice- the blast fungus Magnaporthe grisea.
		There are a number of compelling reasons for obtaining the full genome sequence from Magnaporthe grisea which have acted as the impetus for this initiative.
		Through the efforts of researchers worldwide, the Magnaporthe grisea is being analyzed at the genetic, cellular, and molecular level and studies have already revealed fundamental aspects of its biology.
	www.riceblast.org /StatementIntent.htm (1572 words)

	Research Scholars
		Analysis of early events of the infection in Magnaporthe grisea.
		Analysis of pathogenicity in Magnaporthe grisea : Targeted gene disruption for better understanding of early events of infection in Magnaporthe grisea.
		Functional genomics of Magnaporthe grisea : The aim is to use functional genomics as a tool for studying the pathogenecity genes of the rice blast fungus M.
	www.bcmsu.ac.in /techrep.html (481 words)

	ICPP98 Paper Number 1.3.15 (Site not responding. Last check: 2007-11-04)
		The rice blast fungus Magnaporthe grisea (Hebert) Barr causes the most serious disease of rice.
		Genetic studies have demonstrated that blast resistance is controlled by several major gene pairs, and resistance against the rice blast fungus differs among cultivars.
		grisea on the ultrastructure of host-plant leaf cells.
	www.bspp.org.uk /ICPP98/1.3/15.html (487 words)

	ARS \| Publication request: PHYLOGENETIC ANALYSES OF MAGNAPORTHE GRISEA BASED ON INTERNAL TRANSCRIBED SPACER (ITS) AND ...
		Technical Abstract: Rice blast is caused by Magnaporthe grisea and it is the most important disease of rice in the world.
		Twenty-four isolates of M. grisea from different geographical places and hosts were analyzed for ITS and TEF sequence.
		We also suggest that Magnaporthe poae may be more related to Gaeumannomyces than to Magnaporthe based on its ITS sequence downloaded from GenBank.
	ars.usda.gov /research/publications/publications.htm?SEQ_NO_115=132644 (215 words)

	K12 Outreach - Fungal Genomics
		Of prime importance in the Fungal Genomics laboratory is the study of the interaction between rice and the rice blast fungus, Magnaporthe grisea, through whole genome analysis of pathogen-host recognition and subsequent responses in the rice blast patho-system.
		grisea is one of the main pathological threats to food supplies worldwide.
		grisea is able to evolve rapidly and to overcome rice gene resistance.
	www.ncsu.edu /ncsu/pams/science_house/fungal/research.html (267 words)

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