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Showing 1 to 20 of 21 for “"Magnaporthe"”.
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Studien zur Residenz von Gerste gegen Magnaporthe oryzae
Barley is a host plant of Magnaporthe oryzae which is the causal agent of rice blast disease. Barley plants carrying a mlo-mutation have race non-specific resistance to powdery mildew but are contrariwise hypersusceptible to M. oryzae. MLO wild-type plants are moderately susceptible to M. oryzae. …
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Mutantes insercionais de Magnaporthe grisea com patogenicidade alterada em arroz
Em Magnaporthe grisea, agente causal da brusone, mutagênese insercional mediada por transformação tem constituído estratégia para a identificação de genes essenciais para a patogenicidade em arroz. A técnica REMI, integração mediada por enzima de restrição, merece destaque em virtude da eficiência …
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Charakterisierung der Nichtwirt-Interaktion zwischen Gerste und Pilzen der Gattung Magnaporthe
… between barley and isolates of the fungal genus Magnaporthe was analysed and compared to the host-interaction. Magnaporthe was isolated from different host plants, and the different isolates were examined for their biological relationship to one another and for their capacity to infect barley. It …
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Análise da variabilidade de Magnaporthe grisea no Estado de Santa Catarina
… das cultivares de arroz à brusone, causada por Magnaporthe grisea (Herb.) Barr, é geralmente atribuída à variabilidade genética do patógeno ou ainda à ocorrência de escape durante a seleção de novas cultivares. Com o objetivo de caracterizar a estrutura genética de um grupo de isolados de M. …
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Identification and Characterization of In-planta Expressed Secreted Effector Proteins from Magnaporthe oryzae
Rice blast disease, caused by the fungus Magnaporthe oryzae, is one of the most serious diseases of rice. Interactions between rice and M. oryzae involve the recognition of cellular components and the exchange of complex molecular signals from both partners. How these interactions occur in rice is …
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Limits of detection of Magnaporthe oryzae Triticum pathotype in wheat seed: implications for pathogen dissemination
… wheat, caused by the seed-borne fungal pathogen Magnaporthe oryzae Triticum pathotype (MoT). The first objective of this research was to establish the detection threshold for MoT in infected wheat seeds as a function of sensitivity and specificity of a modified quantitative and conventional PCR …
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Magnaporthe Oryzae Telomeric Retrotransposon (moter) Relics Further Highlight Telomere Dynamics In A Rapidly Evolving Fungal Pathogen
<p>The telomeres of M. oryzae can experience unique rearrangements within a single generation. These rearrangements are frequently attributed to the presence of two retrotransposons (MoTeR 1 and MoTeR 2) that are endemic to the telomeres. These rearrangements can leave footprints within the …
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Development, Evaluation and Application of Proteomic Strategies Towards Understanding the Biology of the Rice Blast Fungus Magnaporthe oryzae.
North Carolina State University Theses Chemistry.
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Identificação de genes de resistência à brusone (Magnaporthe grisea) em cultivares de arroz (Oryza sativa) utilizando marcadores moleculares
A brusone, causada por Magnaporthe grisea, é a doença mais importante do arroz. Uma vez que, o uso de cultivares resistentes é o método mais efetivo para o controle da doença, a pesquisa visa a identificação de novos genes que confiram resistência mais durável. O objetivo deste trabalho foi a …
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Protein Kinase A Regulates Hyphal Growth by Relieving the Interaction of MoSfl1 with the Cyc8-Tup1 Co-repressor in Magnaporthe oryzae
… plant pathogenic fungi. In the rice blast fungus Magnaporthe oryzae, it regulates surface recognition, appressorium turgor generation, and invasive growth. Two genes in M. oryzae named CPKA and CPK2 encode the catalytic subunits of cAMP-dependent protein kinase A. Previous studies have shown that …
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Development, selection and characterization of summer patch (Magnaporthe poae Landschoot and Jackson) resistant somaclones of Kentucky bluegrass (Poa pratensis L.) genotypes
… mildew (Erysiphe graminis), and summer patch (Magnaporthe poae). Variants highly resistant to powdery mildew and summer patch were selected, and the resistance was expressed through several cycles of vegetative propagation. There was no relationship between resistance to summer patch and that …
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Preliminary evaluation of the rice blast fungus (Magnaporthe grisea) as a potential bioherbicide control agent for crabgrass (Digitaria sanguinalis) infestations of tall fescue (Festuca arundinacea Schreb. cv. Fawn) turf
… addressed the possibility of rice blast fungus (Magnaporthe grisea) as a potential bioherbicide for the control of crabgrass (Digitaria sanguinalis), in turf/lawn plantings. Experiments were: (i) evaluation of the effect of bioherbicide inoculum dosage (titer) on disease severity in crabgrass; …
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Rice Blast Disease in the U.S. and Africa: Determination of Pathogen Diversity and the Identification of Resistance Genes for Disease Management
<p>Rice blast caused by Magnaporthe oryzae (= Pyricularia oryzae) B. Couch, is a leading disease of rice. Magnaporthe oryzae exhibits a high degree of diversity. The diversity of isolates of M. oryzae from Africa and the U.S. were examined using vegetative compatibility and virulence phenotyping as …
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THE ROLE OF PKS1 MEDIATED SECONDARY METABOLISM IN HOST PENETRATION AND COLONIZATION DURING RICE BLAST DISEASE
MAGNAPORTHE ORYZAE CAUSES DEVASTATING RICE BLAST DISEASES ALL OVER THE WORLD. THIS FUNGUS DIFFERENTIATES A SPECIALIZED INFECTION STRUCTURE, THE APPRESSORIUM, TO PENETRATE THE RICE LEAVES DURING INITIATION OF THE DISEASE. A LAYER OF CONDENSED MELANIN IS FORMED IN THE APPRESSORIUM TO MAINTAIN A HIGH …
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Molecular and cellular analyses of pathogenicity and host specificity in rice blast disease
… blast disease caused by the ascomycetous fungus Magnaporthe oryzae. Rice blast has become a model system for the study of fungal plant diseases based on its global relevance to agriculture and on our ability to apply molecular genetic and genomic analyses to both the pathogen and the plant. We …
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Ecological Aspects of Four Turfgrass Nematode Genera on Putting Green Turf in Illinois
… (2) the effect and interaction of T. nudus and Magnaporthe poae on bentgrass and annual bluegrass at 24C, 28C, and 30C; (3) the vertical distribution of T. nudus, Criconemella curvata, Helicotylenchus cornurus, and Hoplolaimus galeatus in the upper 5 cm of fenamiphos-treated and nontreated …
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Exploring Genome Structure and Gene Regulation Related to Virulence in Fungal Phytopathogens Using Next Generation Sequencing Techniques
… event. In Chapter 4, seven field isolates of Magnaporthe oryzae were sequenced and their genome content compared. Over 10,000 SNP and Indel locations were identified as well as genes under strong positive selection, which are considered potential virulence related genes. While in a RNA-Seq …
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IDENTIFICATION OF COMMON MECHANISMS TO INTRACELLULARLY ACCOMMODATE BENEFICIAL OR PATHOGENIC FUNGI IN RICE
… nutrient uptake from the soil. In contrast, Magnaporthe oryzae causes rice blast disease, which significantly reduces annual rice yields. Despite their opposing roles, their respective colonization of rice roots share similarities at the transcriptional and morphological level in host cells. …
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Der Einfluß des Mlo-Locus auf genetisch vermittelte und chemisch induzierte Resistenz der Gerste [Hordeum vulgare L.] gegen pilzliche Pathogene
… Therefore the interaction of barley with Magnaporthe grisea was examined. In this way, new insights regarding the impact of the Mlo-locus on the overall resistance status of barley were gained. Macroscopic analyses of plants revealed a slightly susceptible infection phenotype of …
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