Xiaoxiao Zhang et al. reports that flax rust effectors are secreted into a space outside the host cell, but only AvrM has the key signal for delivery into the host cell cytoplasm. Translocation is a separate process! Learn more: https://bit.ly/47BTl6Z Read the commentary: https://bit.ly/4oO50Xj

Po-Yuan Shih et al. found that the pea aphid's specialized salivary effector protein, Ap4, interacts directly with key pea proteins (PsBPL1/2) involved in plant immunity. When expressed, Ap4 enhances aphid performance: https://bit.ly/3Ww9pCg Read the commentary: https://bit.ly/3JytiFH

Get a First Look 🔍: "STT3A Is Required for Recognition of Pathogen-Derived Sphingolipids in Arabidopsis," by Seowon Choi et al. https://doi.org/10.1094/MPMI-05-25-0061-R

The Pea Aphid's Secret Weapon Uncovered! 🤫 Our Commentary highlights the discovery of aphid effector Ap4—a single salivary protein—that manipulates the plant's defense system to boost pest's reproductive success. apsjournals.apsnet.org/doi/10.1094/... @msr20.bsky.social @mpmijournal.bsky.social

Just Published: "The TALE PthA4 of Xanthomonas citri subsp. citri Indirectly Activates an Expansin Gene CsEXP2 and an Endoglucanase CsEG1 via CsLOB1 to Cause Citrus Canker Symptoms," by Rikky Rai and Nian Wang. Learn more: https://doi.org/10.1094/MPMI-03-25-0030-R

Get a First Look 🔍: "Structural Insights into WY Domain-SLiM Containing Conserved RxLR Effectors: A Case Study of Five Important Phytophthora Species," by B. C. Salasini et al. https://doi.org/10.1094/MPMI-11-24-0144-R

Just Published: "A Chromosome-Scale Genome Assembly of the Flax Rust Fungus Reveals the Two Unusually Large Effector Proteins, AvrM3 and AvrN," by Jana Sperschneider et al. Learn more: https://doi.org/10.1094/MPMI-04-25-0047-R

Get a First Look 🔍: "Conservation of Genes Required for Arbuscular Mycorrhizal Symbiosis," by Ellen Krall et al. https://doi.org/10.1094/MPMI-05-25-0065-CR

Just Published: "An RGAE Homolog in Fusarium graminearum Is Critical for Initial Infection in Wheat and Barley," by Nicholas Rhoades et al. 🌾 Read the full article to learn more: https://doi.org/10.1094/MPMI-03-25-0027-R

On this #WorldFoodDay, we celebrate the efforts of those who nourish our communities, protect our planet, and shape a better future through better food for all. Explore resources to learn more about food security and sustainability. #FAO80 https://bit.ly/4nqN3x7

Just Published: "Early Activation of RNAi Reveals Genomic Regions of Grapevine Red Blotch Virus Targeted for Silencing in Grapevine," by Christian Mandelli and Laurent G. Deluc 🍇 Read the full article to learn more: https://doi.org/10.1094/MPMI-04-25-0038-R

We are very happy to share that our paper on Comparative Transcriptomics of Zymoseptoria tritici during host and non-host interactions was accepted for publication in @mpmijournal.bsky.social journal and was just released in the first look section! doi.org/10.1094/MPMI...

Beet mosaic virus (BtMV), once managed via neonicotinoid seed treatments, is now being targeted with RNA-based resistance. Dennis Rahenbrock et al. report dsRNA designed from small RNA sequencing effectively reduced BtMV in sugar beet and N. benthamiana in the greenhouse: doi.org/10.1094/MPMI...

Deadline extended: Submit to the forthcoming MPMI focus issue by November 1, 2025! 🚨

New interactions review on Verticillium longisporum, the cause of stripe disease in Brassica crops. Rafiei, Dixelius & Tzelepis outline the pathogenicity factors, host immune responses, knowledge gaps, and molecular tools for studying this threat. Read the full article here: doi.org/10.1094/MPMI...

In Sinorhizobium meliloti, loss of the carbon metabolism blocks symbiosis with alfalfa. Kaur et al. demonstrate that disrupting the key metabolic enzyme transketolase (tktA) in S. meliloti completely impairs its ability to engage in nitrogen-fixing symbiosis with alfalfa: doi.org/10.1094/MPMI...

Crops often lack diverse resistance genes, making them vulnerable to rapidly evolving pathogens. Xiaoxiao Zhang et al. used DNA shuffling on barley Mla7 and Mla13 genes to create MLA variants, some gaining the ability to recognize the powdery mildew effector AVRA13: doi.org/10.1094/MPMI...

Deadline approaching—submit to the forthcoming focus issue by September 1!

Editor’s Pick! The cassava pathogen Xanthomonas phaseoli pv. manihotis (Xpm) causes severe disease, but its effector functions are not well understood. ‪‪Diana Gómez De La Cruz‬ et al. show that the Xpm effector XopAE suppresses plant defenses. Learn more: doi.org/10.1094/MPMI...

A breakthrough for potatoes: Samodya K. Jayasinghe et al. identify salicylic acid as a key defense hormone against Spongospora subterranea f. sp. subterranea, a persistent soilborne protist threatening yields around the world. 🥔 Read the press release to learn more: www.apsnet.org/about/newsro...

Our commentary on how a virus infection delays flowering published in MPMI titled "A Viral Brake on Bloom: BYDV-GAV Delays Flowering via VOZ Degradation" | Molecular Plant-Microbe Interactions® apsjournals.apsnet.org/doi/10.1094/... @mpmijournal.bsky.social #plantvirus #BYDV #virusinfection

Haider Ali, Megan C. McDonald, and Graeme J. Kettles developed a rapid forward genetics methodology to identify genes that enable Zymoseptoria tritici to gain virulence on previously resistant wheat varieties. Learn more: doi.org/10.1094/MPMI...

Eliza P. I. Loo et al. discuss gaps in information acquisition and transfer between the field and laboratory and indicate that collaboration among stakeholders, scientists, farmers, and policymakers could enhance the development of pathogen-resistant crops. doi.org/10.1094/MPMI...

New call for papers alert 🚨🌱🦠 Submit to the "Symbiotic and Pathogenic Interactions in the Rhizosphere" focus issue by September 1, 2025! Focus Issue Guest Editors: Tarek Hewezi, Hari Krishnan, Kevin Garcia, and Mina Ohtsu Learn more: apsjournals.apsnet.org/mpmirhizosph...

📜 Zymoseptoria tritici show local differences in within-field diversity and effector variation 🧑‍🔬 Andrea Tobian Herreno, @rstam.bsky.social, et al. 📔 @mpmijournal.bsky.social 🔗 apsjournals.apsnet.org/doi/10.1094/... #️⃣ #PlantScience #PlantImmunity #Agriculture

Just published! Barbara Valent honors H. H. Flor by exploring how rice blast fungus evades plant resistance via AVR gene changes—driving boom–bust cycles—and warns of rising wheat and ryegrass blast threats from similar shifts and crossbreeding. Read the article: doi.org/10.1094/MPMI...

Alissar Cheaib and Nabil Killiny review how pathogens disrupt photosynthesis, from tissue destruction to chlorosis, and how plants adapt. Understanding these interactions is essential for #sustainableagriculture and ecosystem health. ☀️🌱 Learn more: doi.org/10.1094/MPMI... @alissarcheaib.bsky.social

New research by K. M. Martin et al. expands our knowledge of tomato spotted wilt virus infection and elaborates on the intricate relationships between viral proteins, cellular dynamics, and host responses. Learn more: doi.org/10.1094/MPMI...

Selin Ozdemir et al. investigated the differential regulation and function of lncRNAs during two different stages of tomato infection by the root-knot #nematode Meloidogyne incognita. 🍅🪱 Learn more: apsjournals.apsnet.org/doi/10.1094/...

Iron's redox states (Fe2+/Fe3+) are critical in fungal pathogenesis, influencing ROS production during plant-pathogen interactions. Aliyeva-Schnorr et al. developed p-TEMPO and MPNBD dyes to visualize Fe2+/Fe3+ distribution in #Colletotrichumgraminicola hyphae. Learn more: doi.org/10.1094/MPMI...

New research by Joydeep Chakraborty et al. elucidates the tomato PP2C-immunity associated candidate 6 (Pic6) as a negative regulator of MAPK signaling and its pivotal role in modulating tomato immunity against bacterial pathogens. 🍅🦠 Learn more: doi.org/10.1094/MPMI...

Tan et al. developed efficient base editing vectors, achieving high A-to-G conversion rates in Arabidopsis thaliana and successfully targeting multiple genes, including NLRs, to modify protein function, demonstrating the potential of base editing 🧬 Learn more: doi.org/10.1094/MPMI...

Editor's Pick! Amelia Lovelace et al. examined the transcriptomic landscape of ‘Candidatus Liberibacter asiaticus’ in citrus seed coat vasculatures, revealing unique gene expression patterns vs. previous midrib studies and new insights into citrus #huanglongbing. 🍊🦠 doi.org/10.1094/MPMI...

Our first bimonthly issue (Jan-Feb) of 2025 is now online!! 👉 apsjournals.apsnet.org/toc/mpmi/cur...

I just got a sneak preview of talks for Part I of the IS-MPMI Early Career Showcase next week. You won't want to miss any. Breakout discussions too. Register now! www.ismpmi.org/Events/2025-... @ismpmi.bsky.social @mpmijournal.bsky.social #plantimmunity #plantdiseaseresistance #effectorbiology

📜 Assembly and Evaluation of a Confocal Microscopy Image Analysis Pipeline Useful in Revealing the Secrets of Plant-Fungal Interactions 🧑‍🔬 @ashleycnelson.bsky.social, Timothy L. Friesen, et al. 📔 @mpmijournal.bsky.social 🔗 apsjournals.apsnet.org/doi/10.1094/... #️⃣ #PlantScience #PlantImmunity

Support #EarlyCareer members attending the upcoming #2025ISMPMI Congress in Cologne, Germany! Your donations to the #MichaelMishkindTravelFund will assist and support the next generation researchers in the field of plant-microbe interactions. Thank you! my.ismpmi.org/ISMPMI/Donat... #donate

MPMI recently published three prominent papers on breakthrough research in soybean cyst nematode management. See the thread below to read the press releases about the novel research 🫛🪱: www.eurekalert.org/news-release... www.eurekalert.org/news-release... www.eurekalert.org/news-release...

Join the 2025–2027 cohort of MPMI Assistant Feature Editors! 🌱🦠 Gain editorial experience, create multimedia content, network with the greater molecular plant-microbe interactions community, and amplify impactful research. Learn more: www.ismpmi.org/mpmi/Pages/C...

📜 Technical advances drive the molecular understanding of effectors from wheat and barley powdery mildew fungi 🧑‍🔬 Merle Bilstein-Schloemer, @marioncmueller.bsky.social & @izzysaurlab.bsky.social 📔 @mpmijournal.bsky.social 🔗 apsjournals.apsnet.org/doi/10.1094/... #️⃣ #PlantScience #PlantImmunity

From lesions to lessons: 2025 marks the 20th anniversary of filamentous plant pathogen genomics. In our new review, we present lessons we learned over the past 2 decades and discuss the future of plant pathogen genomics. Take a first look! apsjournals.apsnet.org/doi/10.1094/...

Get a First Look! 👇 🌱🌾Technical Advances Drive the Molecular Understanding of Effectors from Wheat and Barley Powdery Mildew Fungi doi.org/10.1094/MPMI... @izzysaurlab.bsky.social

Get a First Look at the article by Silvia Minana-Posada, Cécile Lorrain, Bruce A. McDonald, and Alice Feurtey! 👇 Thermal Adaptation in Worldwide Collections of a Major Fungal Pathogen doi.org/10.1094/MPMI...

🌱 Did you know that plant-pathogenic protists have effectors they use to infect susceptible hosts? Check out this review by @sohambio.bsky.social (apsjournals.apsnet.org/doi/10.1094/...) on @mpmijournal.bsky.social and listen to our latest podcast episode 🎧 : open.spotify.com/episode/0eVS...

New insights into Pseudomonas syringae virulence! doi.org/10.1094/MPMI... Research led by Qiang Guo and colleagues highlights a key role of mgo and mgo-like signaling systems in different bacteria in regulating diverse microbe-host interactions 🌱🍅🦠

Unlocking the secrets of soybean nodulation! 🌱 This research shows how SymRK and NFR1 receptors work together to fine-tune G-protein signaling, activating RGS proteins and boosting nodule formation. doi.org/10.1094/MPMI...

The list of concurrent sessions for 2025 IS-MPMI is now available—so many exciting topics to explore! I’ll be co-organizing the session “Spatial & Temporal Resolution of the Interaction Interface” with Unnati Sonawala (Cambridge). See you there! 🧬🌱🦠🔬 www.ismpmi.org/Events/2025C...

Congress update from @ismpmi.bsky.social! Concurrent sessions are now listed 🌱 #PlantScience #MicroSky 🦠 #MPMI www.ismpmi.org/Events/2025C...

My first commentary, "From Enemy to Ally: Harnessing CPR1 for Soybean Defense Strategies", has been published in the Molecular Plant Microbe-Interactions journal. doi.org/10.1094/MPMI... This article refers to Margets et al. (2024), the Editor's pick in MPMI's November issue. doi.org/10.1094/MPMI...

Check this cool review from the lab in @mpmijournal.bsky.social : apsjournals.apsnet.org/doi/full/10....