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Showing 1 to 10 of 10 for “"Rice blast"”.
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Molecular and cellular analyses of pathogenicity and host specificity in rice blast disease
Rice (Oryza sativa L.) production worldwide is constrained by rice 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 …
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ANTIFUNGAL ACTIVITY OF NATURAL AND NATURAL-INSPIRED BIOACTIVE COMPOUNDS TO CONTROL THE RICE BLAST FUNGUS
… Pyricularia oryzae, the causal agent of rice blast and of other cereals, is particularly devastating due to its rapid spread and ability to infect multiple cereal crops. This thesis explores the discovery and development of natural and nature-inspired compounds as multitarget …
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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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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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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
This study 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 …
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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
… and virulence in 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 …
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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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Common Accommodation Mechanisms for Mutualistic and Detrimental Fungi in Oryza sativa (Rice) Roots
Rice roots engage in symbiosis with ancient symbiotic fungi such as R. irregularis, whilst resisting invasion of the detrimental fungus M. oryzae, a major causative agent of the rice blast (leaf) disease. M. oryzae can also invade rice roots with simple non-melanised hyphopodia formed on the rice …
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IDENTIFICATION OF COMMON MECHANISMS TO INTRACELLULARLY ACCOMMODATE BENEFICIAL OR PATHOGENIC FUNGI IN RICE
Rice is a vital cereal crop that feeds over half of the world's population, making it crucial to explore mechanisms that enhance yield or reduce losses. Arbuscular mycorrhizal (AM) fungi such as Rhizophagus irregularis act as beneficial symbionts that enhance plant growth by facilitating nutrient …