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Fig. 1.
Rice blast disease development on parental lines aus-196 and Black Hull Awn weedy rice (RR14) inoculated with four blast races: IB33, IC17, IE1K, and IG1. Leaf images were taken at 7 days postinoculation.

Fig. 1. Rice blast disease development on parental lines aus-196 and Black Hull Awn weedy rice (RR14) inoculated with four blast races: IB33, IC17, IE1K, and IG1. Leaf images were taken at 7 days postinoculation.

Rice blast, caused by the ascomycete fungus #Magnaporthe oryzae, is one of the most problematic diseases for rice production. Aron Osakina et al. identified Pi-ta/Pi-39(t)/Ptr as the key contributor to blast resistance in weedy rice: https://doi.org/10.1094/PHYTO-02-25-0051-R

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Fig. 1.
Development of blast disease symptoms on wheat rachises. Rachises were inoculated with the Magnaporthe oryzae Triticum (MoT) isolate (4 × 103 conidia ml−1) and covered with a polythene bag for 48 h. Development of disease symptoms was monitored, and photographs were taken 10 days after inoculation. The blue circle indicates the area of infection by MoT.

Fig. 1. Development of blast disease symptoms on wheat rachises. Rachises were inoculated with the Magnaporthe oryzae Triticum (MoT) isolate (4 × 103 conidia ml−1) and covered with a polythene bag for 48 h. Development of disease symptoms was monitored, and photographs were taken 10 days after inoculation. The blue circle indicates the area of infection by MoT.

Md. Saiful Islam et al. biochemically demonstrate that blast resistance in S615 is, in part, correlated with its strong antioxidant defense responses to #Magnaporthe oryzae Triticum infection, providing a physiological basis for this resistance mechanism: https://doi.org/10.1094/PHYTO-06-25-0206-R

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Fig. 3.
Bacterial co-occurrence networks in rice phyllosphere and rhizosphere. A to D, Co-occurrence network diagrams of bacterial communities in the phyllosphere and rhizosphere of Kitaake and rbl1Δ12 rice plants. Species compositions at the phylum level are indicated by dots of different colors, and interactions are shown by lines. Positive and negative correlations are shown by different colors as indicated.

Fig. 3. Bacterial co-occurrence networks in rice phyllosphere and rhizosphere. A to D, Co-occurrence network diagrams of bacterial communities in the phyllosphere and rhizosphere of Kitaake and rbl1Δ12 rice plants. Species compositions at the phylum level are indicated by dots of different colors, and interactions are shown by lines. Positive and negative correlations are shown by different colors as indicated.

Rice blast is caused by the fungus #Magnaporthe oryzae and seriously threatens rice production worldwide. Meng Liu et al. showed RBL1 shapes phyllosphere microbial structure to enhance disease resistance in rice: https://doi.org/10.1094/MPMI-08-25-0097-R

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#JJC2026 @jmaidment.bsky.social (@phimresearch.bsky.social) on structural characterisation of the interactions between #Magnaporthe oryzae MAX #effectors and their #virulence targets in #rice

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Characterisation of guided entry of tail-anchored proteins in Magnaporthe oryzae Author summary Rice blast disease, caused by Magnaporthe oryzae is a devastating disease of rice, causing major economic loss in rice production across the globe. Since its isolation in 1892, M. oryza...

🌾 Rice blast fungus threatens global food security. New study uncovers the role of the GET complex in #Magnaporthe oryzae, showing key proteins (MoGet1/2/3) are vital for growth, stress response & infection. Targeting GET could aid crop protection. doi.org/10.1371/jour...

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The N-mannosyltransferase MoAlg9 plays important roles in the development and #pathogenicity of #Magnaporthe oryzae
🟢https://doi.org/10.1016/j.jia.2023.10.027
#plantpathology #plantfugus #riceblast

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Pyricularia oryzae: Lab star and field scourge The fungal pathogen Pyricularia oryzae (syn. Magnaporthe oryzae) is the causal agent of blast disease on cereals and grasses and a model organism in plant–pathogen interaction research.

Also, the #PathogenProfile on #Pyricularia oryzae (a.k.a. #Magnaporthe oryzae)

"Pyricularia oryzae: Lab star and field scourge"

bsppjournals.onlinelibrary.wiley.com/doi/10.1111/...

#PlantScience #PlantImmunity

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Title slide of Thomas Kroj's (INRAE Plant Health Institute Montpellier) presentation. The title is "Insight into the molecular dialogue between plants and pathogenic fungi from the investigation of rice blast disease".
The background shows fungal mycelia in turquoise fluorescence, the outline of plant cells can be seen in magenta. At the interface of the two, fungal hyphae growing into a plant cell can be seen in yellow.

Title slide of Thomas Kroj's (INRAE Plant Health Institute Montpellier) presentation. The title is "Insight into the molecular dialogue between plants and pathogenic fungi from the investigation of rice blast disease". The background shows fungal mycelia in turquoise fluorescence, the outline of plant cells can be seen in magenta. At the interface of the two, fungal hyphae growing into a plant cell can be seen in yellow.

A slide with the title "The blast fungus Magnaporthe oryzae - a multihost and polyspecialist pathogen". Below are images of several plants, including Oryza rice, Wheat triticum, Oat avena, Setaria foxtail millet, Barley hordeum, Bromus, but also Ryegrass Lollium. Since the latter, Ryegrass, is the main grass used for soccer pitch turf, this image doesn't show the grass itself, but soccer players from the Team 1. FC Köln, apparently celebrating a goal or victory.

A slide with the title "The blast fungus Magnaporthe oryzae - a multihost and polyspecialist pathogen". Below are images of several plants, including Oryza rice, Wheat triticum, Oat avena, Setaria foxtail millet, Barley hordeum, Bromus, but also Ryegrass Lollium. Since the latter, Ryegrass, is the main grass used for soccer pitch turf, this image doesn't show the grass itself, but soccer players from the Team 1. FC Köln, apparently celebrating a goal or victory.

Yesterday we had Thomas Kroj here for our regular #PlantScience Lecture. Fantastic talk on his teams recent advances in understanding the effector-repertoire of #Magnaporthe oryzae, as well as NLR-design work. Can you spot the tribute to the Town he started his PhD in on slide 2? 🙂
#PlantImmunity

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PUFA-PLs biosynthesis enzymes contribute to pathogenic development of rice blast fungus #Magnaporthe oryzae
doi.org/10.1080/2150...
@tandfresearch.bsky.social

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Discovery of common 'weapon' used by disease-causing fungi could help engineer more resilient food crops The discovery of a powerful "weapon" used by many disease-causing fungi to infect and destroy major food crop staples, such as rice and corn, could offer new strategies to bolster global food security...

Discovery of common 'weapon' used by #disease-causing #fungi could help engineer more resilient #food #crops.

#NUDIX_hydrolase #rice #food_security #agriculture #Magnaporthe #phosphate #sensing #signalling

phys.org/news/2025-02...

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Première détection de la #pyriculariose du #blé (#WheatBlast) causée par #Magnaporthe oryzae pv Triticum (MoT) en Afrique (#Zambie 🇿🇲). Détection datant de 2017-2018, mais rendue publique seulement en septembre 2020 🤨 #IAPSC @_AfricanUnion @ippcnews @FAOZambia @CGIAR

x.com/SFP_France/sta…

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Première détection de la #pyriculariose du #blé (#WheatBlast) causée par #Magnaporthe oryzae pv Triticum (MoT) en Afrique (#Zambie 🇿🇲). Détection datant de 2017-2018, mais rendue publique seulement en septembre 2020 🤨 #IAPSC @_AfricanUnion @ippcnews @FAOZambia @CGIAR

x.com/SFP_France/sta…

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Saprotrophic #survival of #Magnaporthe oryzae in infested #wheat #residues: The possibility that the causal agent of wheat blast survives under #Brazilian conditions from one crop to another in wheat residues is estimated "very low

link.springer.com/article/10.100…

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#ReidChampi2017 Elisabeth Fournier #BGPI @InraMontpellier. Projet #RizEternel #SMaCH: déterminants de la durabilité du syst rizicole du #YuanYang face à la #pyriculariose. (Mal)daptation de #Magnaporthe oryzae aux var tradi de #riz #indica vs #japonica ?

presse.inra.fr/Communiques-de…

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#ReidChampi2017 Maud Thierry #BGPI @InraMontpellier. Mise en évidence d'un gradient de capacité à faire de la #ReproductionSexuée chez #Magnaporthe oryzae. Quelle influence de l'adaptation à la plante hôte et des niveaux d'hétérogénéité des peuplements ?

biorxiv.org/content/early/…

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