EmerSys Team - IRHS Angers

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

🌱 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.⬇️

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...

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/...

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

#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

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...

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/...

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 🌱

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...

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

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...

Experimental evolution in an era of molecular manipulation

@natrevgenet.nature.com by @joaoascensao.bsky.social and @mmdesai.bsky.social

www.nature.com/articles/s41...

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...

📢 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...

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...

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...

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 💉🦠🌱

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 🥑 🦠

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 🌾🍅🫘🥬

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

#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 ✊

📢 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 👇

📆 Labmeeting IRHS : Boris Taillefer, postdoc de l’équipe EmerSys nous a présenté ses travaux sur le rôle des effecteurs T6SS de Stenotrophomonas rhizophila dans le microbiote des graines. 🦠 🌱
#Microbiote #T6SS #Stenotrophomonas #SeedMicrobiome #PlantHealth

We are very happy to contribute to this Proof by Underpants initiative as part of our @biodiversaplus.bsky.social project Grass4fun. We will conduct this experiment with middle schoolers at @irhs-angers.bsky.social on March 31st 🩲🦠🌾

Happy #InternationalDayOfWomenAndGirlsInScience! Feeling grateful for my amazing female mentors over the years who paved the way 👩‍🔬🥼
And also for my fantastic female colleagues @emersys-irhs.bsky.social from @irhs-angers.bsky.social 🦠🌾
Really inspired by the younger colleagues I'm supervising