Morphological and Pathogenic Variability of Magnaporthe oryzae,  the Incitant of Rice Blast

Rahila, R.; Harish, S.; Kalpana, K.; Anand, G.

doi:10.20546/ijcmas.2020.911.027

Cited by 2 publications

(1 citation statement)

References 9 publications

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“…Rice blast caused by a filamentous, ascomycete fungus Magnaporthe oryzae (syn: Pyricularia oryzae Cav.) is one of the most important diseases of rice worldwide and is one of the major constraint for profitable rice production [7,8]. Efforts to combat rice blast are ongoing, as the fungus has the ability to evolve and overcome resistance mechanisms.…”

Section: Introductionmentioning

confidence: 99%

Morphological Variability of Rice Blast Pathogen Magnaporthe oryzae

Yashaswini,

Gopika,

Ashwini

2023

IJECC

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Rice is the most staple food crop for the human population worldwide. Both biotic and abiotic diseases are known to cause losses to the Rice crop. Mostly, grain yield losses are reported due to blast disease caused by Magnaporthe oryzae across all crop growing areas of the world. Leaf blast samples were collected from various rice-growing areas in Warangal and samples were tested on different growth media and found that OMA+Rice leaf extract was the most suitable for promoting radial growth, conidial size, and sporulation of the pathogenic isolate. Among the eight isolates studied, the Maheshwaram isolate (M-2) exhibited the highest radial growth, conidial size, and good sporulation. This suggests that this particular isolate might be more aggressive or virulent than the others and could pose a greater threat to rice crops in the region.This could lead to more effective strategies for managing blast disease and minimizing yield losses in rice crops in the specific region.

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Section: Introductionmentioning

confidence: 99%

Morphological Variability of Rice Blast Pathogen Magnaporthe oryzae

Yashaswini,

Gopika,

Ashwini

2023

IJECC

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Causal agent of wheat blast (Magnaporthe oryzae): Occurrence and risks for wheat production in Serbia

Jevtić,

Župunski

2023

Biljni lekar

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Magnaporthe oryzae (anamorph Pyricularia oryzae) is the causal agent of wheat blast. Apart from being a pathogen of commercially significant plant species, it also infects weeds. Within the species M. oryzae, several pathotypes exist, with the pathotype Magnaporthe oryzae Triticum (MoT) infecting wheat and several other grass species. M. oryzae was first discovered in Brazil in 1985 and has since posed a threat to wheat production in various parts of the world, including Bangladesh and European Union countries. The MoT pathogen can infect all above-ground parts of the plant, but the most common symptoms appear on the ears and closely resemble symptoms of fusarium head blight. During the 2022/2023 growing season, precipitation levels in April and May at the Rimski šančevi exceeded seventeen-year averages, while the temperature in May was within the multi-year average range. These conditions created a favorable environment for the emergence of M. oryzae. Microscopic examination of infected ears revealed the presence of conidia from the asexual generation of Pyricularia oryzae. Considering that MoT is not classified as a quarantine pathogen in many EU countries, this study highlights the risk of the presence of M. oryzae in Serbia, as well as the importance of monitoring the occurrence of M. oryzae in weeds, grasses, and cereal grains to take timely action in protecting crops from this pathogen.

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Morphological and Pathogenic Variability of Magnaporthe oryzae, the Incitant of Rice Blast

Cited by 2 publications

References 9 publications

Morphological Variability of Rice Blast Pathogen Magnaporthe oryzae

Morphological Variability of Rice Blast Pathogen Magnaporthe oryzae

Causal agent of wheat blast (Magnaporthe oryzae): Occurrence and risks for wheat production in Serbia

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