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What's New
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IS-MPMI > COMMUNITY > Interactions > Categories
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MPMI proudly presents a
special focus issue addressing the
#2 top unanswered research question identified by the
MPMI scientific community: How do aspects of the abiotic environment affect plant–microbe interactions, and conversely, how do plant–microbe interactions affect host response to abiotic stress? The science presented is crucial to understanding how climate change affects plants on a microbial level and to protecting plant health.
 Volume 35, Number 7 / July 2022
Focus on the Role of the Abiotic Environment on Interactions Between Plants and Microbes
J. M. Harris, J. Bede, and K. Tsuda
Plant–Microbiota Interactions in Abiotic Stress Environments
N. Omae and K. Tsuda
Impact of Future Elevated Carbon Dioxide on C3 Plant Resistance to Biotic Stresses
Q. Bazinet, L. Tang, and J. C. Bede
At the Crossroads of Salinity and Rhizobium–Legume Symbiosis
S. Chakraborty and J. M. Harris
Editor's Pick:
Recognition of Microbe- and Damage-Associated Molecular Patterns by Leucine-Rich Repeat Pattern Recognition Receptor Kinases Confers Salt Tolerance in Plants
E. P.-I. Loo, Y. Tajima, K. Yamada, S. Kido, T. Hirase, H. Ariga, T. Fujiwara, K. Tanaka, T. Taji, I. E. Somssich, J. E. Parker, and Y. Saijo
The Mechanosensitive Ion Channel MSL10 Modulates Susceptibility to
Pseudomonas syringae in
Arabidopsis thaliana
D. Basu, J. M. Codjoe, K. M. Veley, and E. S. Haswell
Drought Stress Exacerbates Fungal Colonization and Endodermal Invasion and Dampens Defense Responses to Increase Dry Root Rot in Chickpea
V. Irulappan, M. Kandpal, K. Saini, A. Rai, A. Ranjan, S. Sinharoy, and M. Senthil-Kumar
High Salt Levels Reduced Dissimilarities in Root-Associated Microbiomes of Two Barley Genotypes
A. Kherfi-Nacer, Z. Yan, A. Bouherama, L. Schmitz, S. Ouled Amrane, C. Franken, M. Schneijderberg, X. Cheng, S. Amrani, R. Geurts, and T. Bisseling
Salt- and Osmo-Responsive Sensor Histidine Kinases Activate the
Bradyrhizobium diazoefficiens General Stress Response to Initiate Functional Symbiosis
J. Wülser, C. Ernst, D. Vetsch, B. Emmenegger, A. Michel, S. Lutz, C. H. Ahrens, J. A. Vorholt, R. Ledermann, and H.-M. Fischer
Temporally Regulated Plant–Nematode Gene Networks Implicate Metabolic Pathways
S. Mishra, O. Salichs, and P. DiGennaro
Special Highlight: Cold Exposure Memory Reduces Pathogen Susceptibility in
Arabidopsis Based on a Functional Plastid Peroxidase System
T. Griebel, D. Schütte, A. Ebert, H. H. Nguyen, and M. Baier
As our climate changes, the rapidity of the changes in temperature and carbon dioxide levels and the many planetary processes that they affect, altering weather patterns and soil salinity among others, make it imperative for us to investigate their effect on plant–microbe interactions. In addition to investigating the effects of each of these stresses singly, these changes prompt us to ask questions of increasing complexity. What happens to plant–microbe interactions in the presence of more than one environmental stress? In the natural world, plants associate with more than one microbe at a time—how does abiotic stress affect interactions within the microbial community to affect plant health? And most importantly, how can we translate this increased understanding of the interactions between plants, microbes, and the environment to the field?
— Jeanne Harris, Jacqueline Bede, and Kenichi Tsuda, guest editors
Download and read the articles
here.
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|  Submit your paper by September 9, 2022! Learn more about the scope of the MPMI 2023 Focus Issue on the Plant Endomembrane System in Molecular Plant–Microbe Interactions and submit your manuscript for consideration. Focus Issue Guest editors are H. Jin, E. Park, A. Wang, and D. Wang.
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|  The March MPMI Microgreens podcast presents an interview with Ralph Panstruga and Matthew Moscou on the MPMI journal's Top 10 Unanswered Questions in MPMI question #6. Find out the interesting way in which they reframe the question on the fly in this new episode.
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|  Watch Li-Jun Ma and Houlin Yu discuss their recent MPMI Editor's Pick paper, "Metatranscriptomic Comparison of Endophytic and Pathogenic Fusarium–Arabidopsis Interactions Reveals Plant Transcriptional Plasticity," and stay for the engaging Q&A session that follows.
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|  Listen to Pritha Ganguly discuss her MPMI Editor's Pick paper, "The Natural Antisense Transcript DONE40 Derived from the lncRNA ENOD40 Locus Interacts with SET Domain Protein ASHR3 During Inception of Symbiosis in Arachis hypogaea," during the upcoming What's New in MPMI! Virtual Seminar on April 4, 2022, at 10 AM Central (11 AM Eastern). Register for the free seminar today! If you can't attend live, you can visit this page to view the recording.
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| MPMI Focus Issues are an excellent way for authors to participate in highly cited issues alongside the related work of their peers. Learn more about the scope of the MPMI 2023 Focus Issue on The Plant Endomembrane System in MPMI and plan to submit your manuscript by June 30, 2022.
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|  We're looking forward to the new year with four new virtual seminars! This series is freely available to all.
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| MPMI Assistant Feature Editor Juan S. Ramirez
In the last years, a new viral tomato disease has emerged, threatening tomato production worldwide. This is caused by the Tomato brown rugose fruit virus (ToBRFV), a member of a devastating group of plant viruses called tobamoviruses. ToBRFV overcomes all known tobamovirus resistance in tomato, including the one conferred by Tm-22, a resistance gene responsible for the stable resistance to these viruses for more than 60 years. In a study recently published in the Molecular Plant-Microbe Interactions (MPMI) journal, Dr. Ziv Spiegelman and Dr. Hagit Hak explored the molecular mechanism by which this emerging virus was able to successfully break this resistance and become a devastating global crop pandemic.
“Tm-22 encodes a plant immune receptor protein, which recognizes a viral-encoded protein named movement protein, triggering an immune response against a wide range of tobamoviruses. ToBRFV is the first virus that was able to overcome the durable Tm-22 resistance gene,” said Spiegelman. “We found that the ToBRFV movement protein harbored sequence changes that allow it to evade Tm-22. We confirmed this by introducing this new sequence to another virus (the tomato mosaic virus) that normally cannot infect plants harboring Tm-22, which resulted in a virulent virus.”
Furthermore, they came up with an interesting observation from an evolutionary point of view. “Viral movement proteins allow the virus to spread from cell to cell and infect the entire plant. We found that the elements that enabled the movement protein to avoid Tm-22 recognition likely resulted in reduced viral movement. This suggests that the virus pays a penalty for evading host resistance, which is a reduced cell-to-cell transport. This finding may explain the high durability of Tm-22 resistance, which had remained unbroken for over half a century,” stated Spiegelman.
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