📢 Nous cherchons un Stagiaire de Master 2 (6 mois, 2027, Angers) sur le sujet: Influence of seed functional traits on seed microbiota assembly across 40 crop species 🫘 Compétences : Interactions plante-microbe, écologie/physio végétale @irhs-angers.bsky.social 📆 Deadline 30 Sept, plus d'infos 👇

New preprint led by @logansuteau.bsky.social ! What really drives the success of seed-applied multi-kingdom SynComs ? -> Strain selection matters more than assembly strategy -> SynComs can reshape native bacterial communities via recruitment from soil and network integration doi.org/10.64898/202...

Seed-applied multi-kingdom synthetic communities selectively reshape bacterial communities and highlight key criteria for strain selection

Defined microbial communities (also known as synthetic communities) are showing promising results for plant health but are lacking an efficient lab to field transition. This is the due to limited know...

doi.org

📆 Save The Date! The Plant-Bacteria Interaction Meeting (18th RPB) in Aussois, Savoie will take place from January 11 to 15th, 2027 👉 More info on the keynote speakers & sessions: plants-bacteria-2027.symposium.inrae.fr Deadline: September 25th @inrae-dpt-spe.bsky.social @sfp-france.bsky.social

Check this new paper of the team led by @bobytaillefer.bsky.social on Stenotrophomonas T6SS and its specific or broad spectrum antibacterial effectors targeting a diversity of strains from the seed microbiota 💉 🦠 @inrae-dpt-spe.bsky.social @irhs-angers.bsky.social

Boris Taillefer@bobytaillefer.bsky.social · 3mo ago

Happy to share this one as a post-doc fellow, attempting to describe the T6SS biology in Stenotrophomonas and the role of its effectors. Work under the supervision of the great Alain Sarniguet at @emersys-irhs.bsky.social @irhs-angers.bsky.social

Check out our new preprint using 30 SynComs covering a phylogenetic diversity gradient, we uncover many interesting strain and community features involved in seed to seedling bacterial transmission 🧫🌱 @emersys-irhs.bsky.social in the SUCSEED project @inrae-dpt-spe.bsky.social

Gontran Arnault@garnault.bsky.social · 8mo ago

🌱 New preprint with @microbialmarie.bsky.social www.biorxiv.org/content/10.6... Bacterial Strain Identity and Community Composition Drive the Seed-to-Seedling Microbiota Assembly We explore which strain traits and community features explain successful bacterial transmission from seed to seedling.⬇️

🌱 New preprint with @microbialmarie.bsky.social www.biorxiv.org/content/10.6... Bacterial Strain Identity and Community Composition Drive the Seed-to-Seedling Microbiota Assembly We explore which strain traits and community features explain successful bacterial transmission from seed to seedling.⬇️

I’m excited to share that one of the projects from my PhD is now published in Phytobiomes Journal! Super proud to have some former undergrad mentees and my collaborators from @emersys-irhs.bsky.social as coauthors. You can see the First Look here: apsjournals.apsnet.org/doi/10.1094/...

Contribution of Floral Transmission to the Assembly and Health Impact of Bacterial Communities in Watermelon Seeds | Phytobiomes Journal

Flower-sourced assembly of seed microbiota remains an understudied ecological process. Here, we investigated the floral transmission pathway for bacterial acquisition by developing seeds of watermelon...

apsjournals.apsnet.org

Check our new perspective paper exploring how the seed holobiont goes to sleep 😴 and reactivate for germination. A lot of exciting research to be done to understand dormancy mechanisms in microbes and plants ☘️ @emersys-irhs.bsky.social @irhs-angers.bsky.social

Ákos T Kovács@evolvedbiofilm.bsky.social · 10mo ago

Dormancy and reactivation of the seed and its microbiome: a holobiont perspective #mSystems review by Davide Gerna, @thomas-chadelaud.bsky.social, @fly-florian.bsky.social, @lmatthieul.bsky.social, Armelle Darrasse and @microbialmarie.bsky.social journals.asm.org/doi/10.1128/...

#PMS2025 Check the posters of my 2 wonderful PhD students @logansuteau.bsky.social & Louna Colaert-Sentenac! Results on multi-kingdom SynCom experiments inoculated on seeds to perform plant microbiome engineering & promote pathogen resistance on rapeseed & common bean 🫘 🌱 @emersys-irhs.bsky.social

Very happy to be in Antequera, Spain for #PMS2025 with my 2 PhD students @logansuteau.bsky.social and Louna Coleart-Sentenac We will present results from the SUCSEED project on culturomics and seed microbiome engineering using multi-kingdom SynComs 🫘🧫 @emersys-irhs.bsky.social

#OurTuesdaySeminar: delighted to have our two colleagues Alain Sarniguet and Matthieu Barret from @emersys-irhs.bsky.social @irhs-angers.bsky.social who gave us an overview of #bacteria-bacteria #interactions (T6SS & siderophores) in seed #microbiota.

Great night for the Fête de la Science at the stunning Digital Floralia exhibition (Miguel Chevalier)-Musée des Beaux Arts Angers I enjoyed chatting about our research on seed microbiota, holobionts and alternatives to pesticides 🦠👩‍💻🌱 @emersys-irhs.bsky.social @irhs-angers.bsky.social

We are very excited to make the first announcement of SeedCon 2026. Please mark your calendars and look out for further updates on seedcon.org #SeedCon2026 #SeedMicrobiome #MicrobialInheritance #PlantMicrobiome #Conference

SeedCon2026@seed-con.bsky.social · last yr.

Save the Date! Join us for SeedCon 2026 – The First International Seed Microbiome Conference in Potsdam, Germany. 📅 May 5–7, 2026 More details coming soon: seedcon.org #SeedCon2026 #SeedMicrobiome #MicrobialInheritance #PlantMicrobiome #Conference

New paper from the team 🎉 by M Briand, M-A Jacques & J Dittmer The hidden life of Xylella SRA data mining reveals new host plants & unrecognized infected areas in the world 🌍! Genomes provide evidence for a 3rd Xylella species infecting wild rice 🌾 journals.asm.org/doi/10.1128/...

The hidden life of Xylella: mining the NCBI Sequence Read Archive reveals potential new species, host plants, and infected areas for this elusive bacterial plant pathogen | Applied and Environmental M...

The rapid detection of a pathogen in a new environment and/or in a new host plant is essential to mitigate disease outbreaks. However, bacteria with a wide plant host range, many asymptomatic hosts, a...

journals.asm.org

Transient microbial architects: tracing the legacy effects of ephemeral taxa during plant microbiome assembly Current Opinion in Microbiology by @logansuteau.bsky.social et al from @microbialmarie.bsky.social www.sciencedirect.com/science/arti...

Check this paper from the team in collaboration with Simon Law (CSIRO) on transient microbial architects in plant microbiota 🌱

Marie Simonin@microbialmarie.bsky.social · last yr.

Happy to see our paper out in Current Op in Microbiology! We show how transient microbes can play key roles in plant fitness & microbiota assembly 🦠 The 1st 1st author article for my 2 fantastic PhD students @logansuteau.bsky.social & Louna Coleart-Sentenac 🎉 www.sciencedirect.com/science/arti...

New Tansley review out in @newphyt.bsky.social with @fdiniandreote.bsky.social and Gabriel Castrillo! We explore how the root is shaped by dialogue with soil microbes—highlighting emerging mechanisms and future research directions in root plasticity and microbiome interactions. tinyurl.com/38mkyx5t

Microbial drivers of root plasticity

Soils are highly heterogeneous and dynamic systems, experiencing a constant flow of plant root exudates and moisture fluctuations that affect nutrient distribution, soil physicochemical properties, a...

nph.onlinelibrary.wiley.com

Experimental evolution in an era of molecular manipulation @natrevgenet.nature.com by @joaoascensao.bsky.social and @mmdesai.bsky.social www.nature.com/articles/s41...

Experimental evolution in an era of molecular manipulation - Nature Reviews Genetics

In this Review, Ascensao and Desai discuss how methodological advances in genotype and phenotype manipulation are transforming experimental evolution approaches and providing new insights into the und...

nature.com

📢 New preprint alert! We used comparative genomics on 72,000+ bacterial genomes to uncover the genetic basis of microbial adaptation to multicellular hosts—plants and animals alike. www.biorxiv.org/content/10.1...

The Genetic Basis of Bacterial Adaptation to Hosts

Microbes colonize and interact with diverse multicellular hosts using specialized genes, many of which remain unidentified. Better understanding of host-associated gene functions is a key aspect of mi...

biorxiv.org

New pre-print from my group - project led by PhD student Michael Hoffert. We set out on a daunting mission to generate a 'periodic table' of bacterial diversity (1/6) www.biorxiv.org/content/10.1...

A periodic table of bacteria?: Mapping bacterial diversity in trait space

Bacterial diversity can be overwhelming. There is an ever-expanding number of bacterial taxa being discovered, but many of these taxa remain uncharacterized with unknown traits and environmental prefe...

biorxiv.org

How may theoretical ecology & evolutionary theory push microbiology forward? At Environmental Microbiology, I am commissioning a series of Perspectives exploring that question. Excited to share them in the 🧵 below The series is open, so do get in touch if you'd like to propose a new contribution!

Check out this new paper from the team led by former PhD student Tiffany Garin on the role of T6SS mediated competition on seed microbiota assembly and transmission 💉🦠🌱

Ákos T Kovács@evolvedbiofilm.bsky.social · last yr.

T6SS-mediated competition by Stenotrophomonas rhizophila shapes seed-borne bacterial communities and seed-to-seedling transmission dynamics #mSystems from Alain Sarniguet @irhs-angers.bsky.social with @lmatthieul.bsky.social @microbialmarie.bsky.social journals.asm.org/doi/10.1128/...

Amateurs d'avocats 🥑 ? Mardi 27/05, deux collègues mexicains nous ont proposé un séminaire sur les microbiotes rhizosphérique et du nectar de l'avocatier afin de développer des approches de biocontrôle et biostimulation. Merci @drafred.bsky.social & Alfonso Mendez Bravo #microbiote #biocontrole

A great seminar by @lmatthieul.bsky.social from @emersys-irhs.bsky.social on seed microbiota today! FR: un séminaire merveilleux par Matthieu Barret d’équipe EmerSys sur le microbiote de la graine aujourd’hui ! @irhs-angers.bsky.social

Fantastic (and very busy) two days visiting @irhs-angers.bsky.social and sharing insights on plant #microbiota and #syncoms with the @emersys-irhs.bsky.social and #FungiSem teams. 🥑🍅🫘🐝 And what a greenhouse! 🤩 Thanks @microbialmarie.bsky.social for having us!

We are very happy to host you with Alfonso Mendez Bravo! Great talks and discussions about plant-microbiome interactions, pathobiomes, nectar yeasts! Really cool research on avocado 🥑 🦠

Frédérique Reverchon@drafred.bsky.social · last yr.

Made it to beautiful Angers and looking forward to two days of fruitful discussions with colleagues at @emersys-irhs.bsky.social.

We had a lot of fun doing our "Proof by Underpants" 🩲experiment with 2 groups of middle schoolers from Angers ! We will compare the soil health of an orchard and a grassland from our Experimental station UE HORTI @inrae-france.bsky.social

Check our preprint led by our colleagues from the FungiSem team @irhs-angers.bsky.social High prevalence of Basidiomycota yeasts in seeds across multiple plant species 🌾🍅🫘🥬

Yeast Posting@yeastpapers.bsky.social · last yr.

Unexplored Yeast diversity in Seed Microbiota Full text: www.biorxiv.org/content/10.1... #yeast #microbiology #saccharomyces

Last week to apply to join our team in Angers as a PhD student with @fly-florian.bsky.social

Marie Simonin@microbialmarie.bsky.social · 2y ago

📢 Open PhD Position With @fly-florian.bsky.social, we are recruiting a PhD student to develop CRISPR-Based Microbiome Editing to Study Microbial Interactions in Early Plant Life 🧬 🌿 Join us in Angers, France in the @emersys-irhs.bsky.social at @inrae-france.bsky.social 🗓️ Deadline 03/31 More info 👇

#StandUpForScience protest here in Angers, France 🇫🇷 with @emersys-irhs.bsky.social and @irhs-angers.bsky.social represented 🥼 in front of @ua-recherche.bsky.social We stand with our American colleagues facing unprecedented attacks against Science, Research, Public & Environmental health ✊