Resistance spectra of wheat cultivars and virulence diversity of Magnaporthe grisea isolates in Brazil

Seventy-two monoconidial isolates of Magnaporthe grisea were obtained from the States of Mato Grosso do Sul and Parana. The isolates were inoculated on seedlings of 20 wheat (Triticum aestivum) cultivars under greenhouse conditions. The virulence diversity of M. grisea was assessed based on compatible and incompatible reactions of leaf blast on wheat cultivars. Fifty-four distinct virulence patterns were identified on test cultivars among the isolates collected from the two wheat growing States. Sixteen of these isolates corresponding to 22.2% showed similar virulence pattern. None of the wheat cultivars was resistant to all isolates of M. grisea, but the cultivars differed in degree of resistance as measured by the relative spectrum of resistance (RSR) and disease index (DI). Among the cultivars the RSR ranged from 0 to 53.3% and DI from 0.4662 to 0.9662 (0 to 1 scale). The wheat cultivar BR18 exhibited a broad resistance spectrum in relation to the rest of the tested cultivars to the isolates of M. grisea, and can be used in wheat resistance breeding.

• Publication year

  2004

• Venue

  Fitopatologia Brasileira

• Publication date

  2004-10-01

• Fields of study

  Agricultural and Food Sciences, Biology, Environmental Science

• Identifiers
  DOI 10.1590/S0100-41582004000500007
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar

• No claims are published for this paper.

• No concepts are published for this paper.

• Inter-relação sexual de Magnaporthe grisea do trigo e de outros hospedeiros

  2001cited by this paper
• Wheat yield losses due to Pyricularia grisea, in 1991 and 1992, in the state of Mato Grosso do Sul.

  2000cited by this paper
• Pathotype and Avirulence Gene Diversity of Pyricularia grisea in Thailand as Determined by Rice Lines Near-Isogenic for Major Resistance Genes.

  2000cited by this paper
• Molecular Analysis of the Wheat Blast Population in Brazil with a Homolog of Retrotransposon MGR583

  1999cited by this paper
• Population structure and dynamics of Magnaporthe grisea in the Indian Himalayas.

  1999cited by this paper
• Recombination in Magnaporthe grisea.

  1998cited by this paper
• Evidence of parasexual exchange of DNA in the rice blast fungus challenges its exclusive clonality.

  1997cited by this paper
• Ocorrência de brusone ( Pyricularia grisea ) em trigo e centeio na região dos cerrados do Brasil central

  1996cited by this paper
• Varietal resistance and chemical control of wheat blast fungus

  1994cited by this paper
• Host range, mating type, and fertility of Pyricularia grisea from wheat in Brazil

  1993cited by this paper
• Pathogenic variability in Pyricularia grisea at a rice blast "hot spot" breeding site in Eastern Colombia

  1993cited by this paper
• Pathogenic variation among isolates of Pyricularia oryzae affecting rice, wheat, and grasses in Brazil

  1992cited by this paper
• Integrated management of major wheat diseases in Brazil: An example for the Southern Cone Region of Latin America

  1992cited by this paper
• Magnaporthe grisea genes for pathogenicity and virulence identified through a series of backcrosses.

  1991cited by this paper
• Controle de Pyricularia oryzae e Helminthosporium sativum pelo tratamento de sementes de trigo com fungicidas

  1991cited by this paper
• Geographical distribution and associations between resistance to four races of Rhynchosporium secalis

  1987cited by this paper
• Quantitative resistance of rice to blast disease

  1982cited by this paper
• Pathogen Variability and Host Resistance in Rice Blast Disease

  1980cited by this paper

• Epidemiology, genetic diversity and management approaches of wheat blast from South America to South Asia

  2025cites this paper
• Aerobiology of the Wheat Blast Pathogen: Inoculum Monitoring and Detection of Fungicide Resistant Alleles

  2023cites this paper
• MIF-like domain containing protein orchestrates cellular differentiation and virulence in the fungal pathogen Magnaporthe oryzae

  2023cites this paper
• Role of seed infection for the near and far distance dissemination of wheat blast caused by Magnaporthe oryzae pathotype Triticum

  2023cites this paper
• A key regulator with a MIF-like domain orchestrates cellular differentiation and virulence in the fungal pathogen Magnaporthe oryzae

  2022cites this paper
• Caninde2/Milan: promising wheat line to discover novel genes for resistance to wheat blast

  2022cites this paper
• Integrated Pest Management Programme for cereal blast fungus Magnaporthe oryzae

  2022cites this paper
• A scientometric view of wheat blast: the new catastrophic threat to wheat worldwide

  2022cites this paper
• Further progress on wheat blast epidemiology: Identification of novel alternate hosts of Magnaporthe oryzae Triticum pathotype in Paraguay

  2022influential citation
• Diversidade genética de um painel de genótipos do Programa Trigo - UFV para resistência a Magnaporthe oryzae pat. Triticum

  2022cites this paper
• Evaluation of wheat genotypes for field resistance to wheat blast caused by Magnaporthe oryzae pathotype Triticum (MoT) and correlation between yield loss and disease incidence in the Brazilian Cerrado

  2021cites this paper
• First report of blast of durum wheat in Bangladesh, caused by Magnaporthe oryzae pathotype Triticum

  2021cites this paper
• Identification of Fusarium head blight resistance loci in two Brazilian wheat mapping populations

  2021cites this paper
• Wheat Spike Blast Image Classification Using Deep Convolutional Neural Networks

  2021cites this paper
• Diversity of virulence of Pyricularia oryzae isolates obtained from a single lesion of wheat

  2021cites this paper
• Pyricularia oryzae incites gray leaf spot disease on hard fescue (Festuca brevipila )

  2021cites this paper
• Evaluation of elite bread wheat lines for resistance to blast disease in Bangladesh

  2021cites this paper
• Dissecting the genetic basis of wheat blast resistance in the Brazilian wheat cultivar BR 18-Terena

  2020cites this paper
• Hydrogen Peroxide Detoxifying Enzymes Showed Different Activities at Different Timing in Host and Nonhost Plants Interactions with Wheat Blast Fungus Magnaporthe Oryzae Triticum Pathotype

  2020cites this paper
• A PCR, qPCR, and LAMP Toolkit for the Detection of the Wheat Blast Pathogen in Seeds

  2020cites this paper
• First report of triticale blast caused by the fungus Magnaporthe oryzae pathotype Triticum in Bangladesh

  2020influential citation
• Wheat blast: Aggressiveness of isolates of Pyricularia oryzae and effect on grain quality

  2019cites this paper
• Characterization of blast resistance related protein domains in wheat for molecular marker development

  2019cites this paper
• Screening wheat genotypes for resistance to wheat blast disease in the vegetative and reproductive stages

  2019cites this paper
• Progresso temporal da brusone do trigo em função do inóculo primário, da aplicação de fungicida e da resistência dos genótipos

  2019cites this paper
• Host/nonhost status and genetics of resistance in barley against three pathotypes of Magnaporthe blast fungi

  2019cites this paper
• Caracterização fenotípica, mapeamento de QTL e análise de expressão de genes-candidatos de resistência de trigo a Magnaporthe oryzae

  2019influential citation
• Host/nonhost status and genetics of resistance in barley against three pathotypes of Magnaporthe blast fungi

  2019cites this paper
• Pyricularia blast - a threat to wheat cultivation.

  2018cites this paper
• Potential of transmission of Pyricularia graminis-tritici from plant to seed and from seed to seedling in wheat genotypes with different degrees of blast resistance

  2018cites this paper
• Epidemiology, phytopathological and molecular differentiation and infection processes of diverse strains of Magnaporthe spp. on wheat and rice

  2018cites this paper
• Biotechnologies of Crop Improvement, Volume 3

  2018cites this paper
• Wheat blast: from its origins in South America to its emergence as a global threat

  2018cites this paper
• Multi-environment assessment of fungicide performance for managing wheat head blast (WHB) in Brazil and Bolivia

  2018cites this paper
• DNA Fingerprinting and Sexual Characterization Revealed Two Distinct Populations of Magnaporthe grisea in Wheat Blast from Brazil

  2018cites this paper
• Status of Magnaporthe oryzae Infection in Different Districts of Karnataka, India and Establishment of Monoconidial Cultures for Understanding Genetic Diversity

  2018cites this paper
• Reação de plantas de trigo e hospedeiros alternativos a Magnaporthe oryzae

  2018cites this paper
• Reação de Avena spp. à brusone na busca de novas fontes de resistência genética.

  2018cites this paper
• Utilization of Wild Species for Wheat Improvement Using Genomic Approaches

  2018cites this paper
• Absence of 2NS/2AS in wheat resistance sources to Magnaporthe oryzae in Brazil.

  2018cites this paper
• Patogenicidad de Magnaporthe oryzae en variedades y líneas de trigo cultivadas en Paraguay

  2018cites this paper
• Wheat blast disease: danger on the move

  2017cites this paper
• Diferencia en la reacción a Pyricularia oryzae de materiales de trigo en los estadios vegetativo y reproductivo

  2017cites this paper
• Host range, mating type and population structure of Magnaporthe sp. of a single barley field in São Paulo state, Brazil

  2017cites this paper
• Progress and Perspective in Wheat Blast Research

  2017cites this paper
• Pathogenicity of isolates of Magnaporthe spp. from wheat and grasses infecting seedlings and mature wheat plants in Argentina

  2017cites this paper
• Damage of wheat blast on the productivity and quality of seeds as a function of the initial inoculum in the field

  2017cites this paper
• Wheat blast-A new challenge to wheat production in South Asia

  2017influential citation
• The wheat blast pathogen Pyricularia graminis-tritici has complex origins and a disease cycle spanning multiple grass hosts

  2017cites this paper
• Pyricularia oryzae-wheat interaction: physiological changes and disease management using mineral nutrition and fungicides

  2017cites this paper
• The 2NS Translocation from Aegilops ventricosa Confers Resistance to the Triticum Pathotype of Magnaporthe oryzae

  2016influential citation
• Emergence of wheat blast in Bangladesh was caused by a South American lineage of Magnaporthe oryzae

  2016influential citation
• Fungicide and cultivar effects on the development and temporal progress of wheat blast under field conditions

  2016cites this paper
• Infection process of Pyricularia oryzae on the leaves of wheat seedlings

  2016cites this paper
• Wheat resistance to blast using a non-host selective toxin and host metabolic reprogramming through a successful infection by Pyricularia oryzae

  2016cites this paper
• Mapping highly informative SSR markers in the genome of Magnaporthe oryzae from wheat

  2016cites this paper
• Sowing date reduces the incidence of wheat blast disease

  2016influential citation
• from to

  2016influential citation
• Wheat Blast and Fusarium Head Blight Display Contrasting Interaction Patterns on Ears of Wheat Genotypes Differing in Resistance.

  2016cites this paper
• Rmg7, a New Gene for Resistance to Triticum Isolates of Pyricularia oryzae Identified in Tetraploid Wheat.

  2015cites this paper
• Novel aspects of hydrophobins in wheat isolate of Magnaporthe oryzae: Mpg1, but not Mhp1, is essential for adhesion and pathogenicity

  2015cites this paper
• Rmg8, a New Gene for Resistance to Triticum Isolates of Pyricularia oryzae in Hexaploid Wheat.

  2015cites this paper
• Magnaporthe oryzae conidia on basal wheat leaves as a potential source of wheat blast inoculum

  2015cites this paper
• Hospederos alternativos de Magnaporthe grisea del trigo en Paraguay Alternative hosts of Magnaporthe grisea of wheat in Paraguay

  2015cites this paper
• Resistência cruzada aos fungicidas IQo azoxistrobina e piraclostrobina no patógeno da brusone do trigo Pyricularia oryzae no Brasil

  2015cites this paper
• Wheat Diseases and Their Management

  2014cites this paper
• Mecanismos de patogenicidade do fungo Magnaporthe oryzae, agente causal da brusone em trigo: crescimento e esporulação, pressão de turgor apressorial, enzimas celulolíticas e produção de metabólitos tóxicos

  2014cites this paper
• Enhanced disease resistance caused by BRI1 mutation is conserved between Brachypodium distachyon and barley (Hordeum vulgare).

  2014cites this paper
• Resistência a fungicidas estrobilurinas em populações de Pyricularia oryzae de áreas de trigo no Brasil

  2014cites this paper
• Spike Diseases Caused by Fungi

  2014cites this paper
• Photosynthetic gas exchange in leaves of wheat plants supplied with silicon and infected with Pyricularia oryzae

  2014cites this paper
• Ectoparasitic growth of Magnaporthe on barley triggers expression of the putative barley wax biosynthesis gene CYP96B22 which is involved in penetration resistance

  2014cites this paper
• Eficiência de fungicidas no controle da brusone em trigo

  2014cites this paper
• Development of Genomic SSR Markers and Molecular Characterization of Magnaporthe oryzae Isolates from Wheat in Brazil

  2014influential citation
• Management of wheat blast with synthetic fungicides, partial resistance and silicate and phosphite minerals

  2014cites this paper
• Induction of resistance to Pyricularia oryzae in wheat by acibenzolar-S-methyl, ethylene and jasmonic acid

  2014cites this paper
• Evolutionary Conserved Function of Barley and Arabidopsis 3-KETOACYL-CoA SYNTHASES in Providing Wax Signals for Germination of Powdery Mildew Fungi1[C][W]

  2014cites this paper
• Two distinct secretion systems facilitate tissue invasion by the rice blast fungus Magnaporthe oryzae

  2013cites this paper
• Wheat blast: quantitative pathway analyses for the Triticum pathotype of Magnaporthe oryzae and phenotypic reaction of U.S. wheat cultivars

  2013cites this paper
• Genetic analysis of host–pathogen incompatibility between Lolium isolates of Pyriculariaoryzae and wheat

  2013cites this paper
• Pyricularia blast on white oats: a new threat to wheat cultivation

  2013cites this paper
• Genetic and molecular mechanisms of the evolution of wheat blast fungus from its relatives

  2013cites this paper
• The role of cellular morphogenesis in the pathogenicity of the rice blast fungus Magnaporthe oryzae

  2013cites this paper
• Wheat blast.

  2013influential citation
• Preliminary Assessment of Resistance Among U.S. Wheat Cultivars to the Triticum Pathotype of Magnaporthe oryzae.

  2012cites this paper
• Biochemical changes in the leaves of wheat plants infected by Pyricularia oryzae.

  2012cites this paper
• TaWIR1 contributes to post-penetration resistance to Magnaporthe oryzae, but not Blumeria graminis f. sp. tritici, in wheat.

  2012cites this paper
• Characterization of Magnaporthe grisea (Pyricularia grisea) from Black Oat in Brazil

  2011cites this paper
• Aplicação foliar de produtos na redução da severidade da brusone do trigo

  2011cites this paper
• Syntenic relationship of loci for quantitative resistance to Pyricularia grisea in rice and barley.

  2010cites this paper
• Four QTL in rice associated with broad spectrum resistance to blast isolates from rice and barley.

  2010cites this paper
• Resistência parcial à brusone de genótipos de trigo comum e sintético nos estádios de planta jovem e de planta adulta

  2010cites this paper
• The barley mutant emr2 shows enhanced resistance against several fungal leaf pathogens

  2009cites this paper
• Caracterização genética e fenotípica de isolados de Pyricularia grisea do trigo

  2009cites this paper
• Validation of rice blast resistance genes in barley using a QTL mapping population and near-isolines

  2009cites this paper
• Effect of Magnaporthe grisea on Seed Germination, Yield and Quality of Wheat

  2009cites this paper
• Wheat blast: histopathology and transcriptome reprogramming in response to adapted and nonadapted Magnaporthe isolates.

  2009cites this paper
• Identification of two genes for resistance to Triticum isolates of Magnaporthe oryzae in wheat.

  2008cites this paper
• Reação à brusone de genótipos de trigo do programa de melhoramento da Embrapa Trigo no estádio de planta adulta.

  2008cites this paper
• The barley mutant emr1 exhibits restored resistance against Magnaporthe oryzae in the hypersusceptible mlo-genetic background

  2007cites this paper