Happy to share the results of our first attempt at single-cell proteomics using Arabidopsis protoplasts, led by @sara-stolze.bsky.social, with support from @brukercorporation.bsky.social and Cellenion. doi.org/10.1093/pcp/...

Advances in single-cell proteomics: label-free quantification of over 3500 protein groups from individual Arabidopsis thaliana seedling cells

Sara Christina Stolze, Anne Harzen, Christoph Krisp, Hirofumi Nakagami; Advances in single-cell proteomics: label-free quantification of over 3500 protein

doi.org

FE DEFICIENCY-INDUCED KELCH REPEAT PROTEIN 1 (FDK1) links coumarin metabolism and iron homeostasis during alkaline iron deficiency in Arabidopsis https://www.biorxiv.org/content/10.64898/2026.10.08.757528v1

A new plant-bacteria immunological connection in the first preprint of our group at @mpi-bio-fml.bsky.social @plantevolution.bsky.social! Straight from the top of Mt. Olympus ⛰️🦅 Led by Eirik @eiriklag.bsky.social, in collaboration with @geminiteamlab.bsky.social www.biorxiv.org/content/10.6...

📣Paper Alert! 🥳 A new study @cp-cell.bsky.social from the Schulze-Lefert group @mpipz.bsky.social reveals how Arabidopsis adapts its iron acquisition strategy to soil pH, using coumarins & bacterial pathways to access this essential nutrient. 👏 👉 bit.ly/4yEU9Em #plantsci www.cell.com/cell/fulltex...

Arabidopsis uses distinct coumarins and bacterial pathways for pH-adaptive iron acquisition

Arabidopsis coordinates Fe acquisition with its root microbiota by releasing distinct coumarin chemotypes in response to environmental pH. These root-exuded specialized metabolites interact with root-...

cell.com

🌱🦠 Excited to share part of my PhD work @mpipz.bsky.social with @hotvegetables.bsky.social as co-first, in collab with @leibnizipk.bsky.social and @ceplas.bsky.social. We found that Arabidopsis and its microbiota work together to adapt iron acquisition to soil pH. www.cell.com/cell/fulltex... 🧵

Arabidopsis uses distinct coumarins and bacterial pathways for pH-adaptive iron acquisition

Arabidopsis coordinates Fe acquisition with its root microbiota by releasing distinct coumarin chemotypes in response to environmental pH. These root-exuded specialized metabolites interact with root-...

cell.com

Experimental evolution of root-associated microbial communities https://www.biorxiv.org/content/10.64898/2026.09.18.752712v1

Happy to have this out @maxstassen.bsky.social @shuhuah.bsky.social @cornepieterse.bsky.social @utrechtpmi.bsky.social #coumarins #beneficial_microbes #induced_resistance

bioRxiv Plant Bio@biorxiv-plants.bsky.social · 2mo ago

Coumarins link rhizobacteria perception in roots to systemic resistance in leaves https://www.biorxiv.org/content/10.64898/2026.08.11.741996v1

Time for another preprint from the lab: www.biorxiv.org/content/10.6... Led by @yuanyuanzhang.bsky.social and @defengshen.bsky.social. We found some surprising secrets that connect and uncouple root barrier formation with systemic nitrogen signaling in shoots. see the thread below for more details

A tunable receptor separates root barrier formation from nutrient signaling through ligand-perception states

In roots, the endodermis controls nutrient entry by forming a barrier known as the Casparian strip. Yet how barrier-associated processes interface with systemic signaling remains unclear. Here, we sho...

biorxiv.org

How do pathogens disarm plant immunity? We discovered a widespread strategy used by plant bacterial pathogens: they directly cleave a conserved immune signaling molecule produced by plant immune receptors. www.biorxiv.org/content/10.6...

‼️Please RT: The CEPLAS Graduate School call for 2026 is now open! Detailed info on our website: bit.ly/4q19JWk @hhu.de @unicologne.bsky.social @mpipz.bsky.social @fz-juelich.de @leibnizipk.bsky.social @plantsciencedbg.bsky.social

Super excited to share that my PhD research paper is finally out! @newphyt.bsky.social doi.org/10.1111/nph.... @parkergroup.bsky.social

Cooperation between a root fungal endophyte and host‐derived coumarin scopoletin mediates Arabidopsis iron nutrition

Iron acquisition is a critical challenge for plants, especially in iron-deficient soils. Recent research underscores the importance of root-exuded coumarins in modulating the root microbiome communi.....

doi.org

Our paper on Pseudomonas intra-genus competition in SynComs on Arabidopsis roots is now out @plosbiology.org ! 🎉 If you want to chat about the story, visit poster 374 tomorrow, Thursday #2025ISMPMI journals.plos.org/plosbiology/...

Pseudomonas intra-genus competition determines the protective function of synthetic bacterial communities in Arabidopsis thaliana

The plant microbiome can protect its host against detrimental bacterial strains. This study shows that competition among Pseudomonas bacteria in synthetic bacterial communities determines how well the...

journals.plos.org

An effluent pump family distributed across plant commensal bacteria conditions host- and organ-specific glucosinolate detoxification

An effluent pump family distributed across plant commensal bacteria conditions host- and organ-specific glucosinolate detoxification - Nature Communications

Bacterial genes required for plant colonization are highly host- and organ-specific. An efflux pump detoxifies specific Arabidopsis glucosinolates to protect commensal bacteria from plant chemical def...

nature.com

Curious about my PhD research @parkergroup.bsky.social? The paper is available as preprint on bioRxiv now! 🔬 The interaction between scopoletin and fungal endophyte F80 rescues plant growth under iron-limiting conditions by resolving the iron mobility bottleneck. 📝 www.biorxiv.org/content/10.1...

Cooperation between a root fungal endophyte and host-derived coumarin scopoletin mediates Arabidopsis iron nutrition

Iron acquisition is a critical challenge for plants, especially in iron-deficient soils. Recent research underscores the importance of root-exuded coumarins in modulating the root microbiome community...

biorxiv.org

Researchers pinpoint the genes responsible for the final three pea traits studied by Gregor Mendel more than 160 years ago https://go.nature.com/3EC3eqT

Century-old genetics mystery of Mendel’s peas finally solved

Researchers pinpoint the genes responsible for the final three pea traits studied by the famed citizen scientist.

go.nature.com

📜 Resolving spatially distinct phytohormone response zones in Arabidopsis thaliana roots colonized by Fusarium oxysporum 🧑‍🔬 Jacob Calabria, @tonnigrubeandersen.bsky.social, @aidnurm.bsky.social, @somssich.bsky.social, et al. 📔 @jxbotany.bsky.social 🔗 shorturl.at/ZWx4g #️⃣ #PlantScience #PlantImmunity

Resolving spatially distinct phytohormone response zones in Arabidopsis thaliana roots colonized by Fusarium oxysporum

Abstract. Jasmonic acid (JA), ethylene (ET) and salicylic acid (SA) are the three major phytohormones coordinating plant defense responses, and all three a

academic.oup.com

We present MetaFlowTrain, an easy-to-build, highly parallelized, and cost-effective fluidic system for studying microbial exometabolites and their roles in modulating microbe–microbe–host interactions. Kudos to @chesneau-g.bsky.social @mpipz.bsky.social Give it a try: www.nature.com/articles/s41...

Deadline extended! You wanted more time, and we heard you. The #2025ISMPMI Congress abstract submission deadline is now March 26. Don’t miss your chance to present your research and connect with top scientists! Submit now: www.ismpmi.org/Events/2025C...

The 2025 IS-MPMI Congress is the must-attend event for anyone passionate about groundbreaking plant-microbe science. Take advantage of early bird registration and get the best deal before April 30! Register: www.ismpmi.org/Events/2025C... #2025ISMPMI #PlantScience #ScienceNetworking

1/ Hey y'all, I'm excited to share my latest paper, which is out now in PNAS! We introduce FAVA, a statistical framework to measure compositional variability across microbiome samples. If you want to measure variability across a stacked bar plot, FAVA is for you! Paper: doi.org/10.1073/pnas...

I’m excited to hear new MPMI science in Cologne.

International Society for Molecular Plant-Microbe Interactions@ismpmi.bsky.social · 2y ago

Deadline extended! You wanted more time, and we heard you. The #2025ISMPMI Congress abstract submission deadline is now March 26. Don’t miss your chance to present your research and connect with top scientists! Submit now: www.ismpmi.org/Events/2025C...

Preprint alert: Here we report MMF1 - "a microbiota receptor” - through which Arabidopsis plants perceive their soil microbiome. Perception optimises root microbiome composition, immune status and ultimately leads to better growth. Happy reading... www.biorxiv.org/content/10.1...

A TNL receptor mediates microbiome feedbacks in Arabidopsis

Plant performance depends on the soil microbiome. While microbiome feedbacks are well documented, the mechanisms by which plants perceive and mediate these feedbacks remain unclear. We established a f...

biorxiv.org

🔊🔊New publication out @natureplants.bsky.social by the group of Paul Schulze-Lefert and colleagues on how blocking plant immune responses gives bacteria a competitive advantage 👏🌿👏. Please also read 👉 bit.ly/3QoDZKV #plantsci #microbiome #immunity www.nature.com/articles/s41...

Conserved immunomodulation and variation in host association by Xanthomonadales commensals in Arabidopsis root microbiota - Nature Plants

The authors show that immunosuppression is highly conserved in the bacterial order Xanthomonadales. This feature, which preceded their specialization as host-adapted pathogens, probably contributes to...

nature.com

New round of the Lise Meitner Excellence Program for tenure track group leaders in @maxplanck.de institutes opened today -- please consider applying! The program aims to recruit and promote exceptionally qualified female scientists. Because diversity increases excellence! www.mpg.de/lise-meitner...

🔊New paper out! 👏👏Now published at @embojournal.org by the group of Paul Schulze-Lefert @mpipz.bsky.social and colleagues at the University of Cologne and Westlake University, China on immune receptor engineering for plant resistance 🌿🪴. 👉 bit.ly/3EGyfd2 #plantsci www.embopress.org/doi/full/10....

The barley MLA13-AVRA13 heterodimer reveals principles for immunoreceptor recognition of RNase-like powdery mildew effectors | The EMBO Journal

imageimageMildew Locus A (MLA) proteins are plant immunoreceptors that bind strain-specific powdery mildew effectors encoded by fungal avirulence genes (AVRas). This study reports the cryo-EM structur...

embopress.org

Check out our new study! We show that Arabidopsis uses the EDS1-SAG101-NRG1 node to trigger rapid yet contained cell death. Key finding: NRG1C variant regulates this process by competing with functional NRG1s. Amazing collaboration between Jijie Chai and Parker Labs. www.nature.com/articles/s41...

The enduring power of microscopy in the age of spatial analyses! Using novel fluorescence-based reporters, this study shows that SA, ROS, DAMPs & ET induce the HR zone as a 1st line of defence against Fusarium, while WRKY11, JA & ET govern active defences in a separate zone. @jxbotany.bsky.social

Resolving spatially distinct phytohormone response zones in Arabidopsis thaliana roots colonized by Fusarium oxysporum

Abstract. Jasmonic acid (JA), ethylene (ET) and salicylic acid (SA) are the three major phytohormones coordinating plant defense responses, and all three a

academic.oup.com

List of Keynote & Plenary speakers of 2025 IS-MPIMI Cologne. Looks quite interesting. I will be there! www.ismpmi.org/Events/2025C...

Keynote & Plenary Speakers

​Keynote and Plenary Speakers​...​We are excited to announce our keynote and plenary speakers for the 2025 IS-MPMI Congress.  Keynote Speakers​Maria Harrison, Cornell UniversityRotem Sorek, Weizmann I...

ismpmi.org

📜 A nucleoside signal generated by a fungal endophyte regulates host cell death and promotes root colonization 🧑‍🔬 Nick Dunken, @algazuccaro.bsky.social, et al. 📔 Cell Host & Microbe 🔗 www.sciencedirect.com/science/arti... #️⃣ #PlantScience #PlantImmunity

A nucleoside signal generated by a fungal endophyte regulates host cell death and promotes root colonization

The intracellular colonization of plant roots by the beneficial fungal endophyte Serendipita indica follows a biphasic strategy, including a host cell…

sciencedirect.com