Marie Simonin
@microbialmarie.bsky.social
780 followers 530 following 22 posts
Ecologist studying plant microbiota assembly and microbiome engineering / Seeds / SynComs 🦠/ Sustainable agriculture 🌾 Researcher at INRAE, France http://mariesimonin.com/
Posts Media Videos Starter Packs
Pinned
microbialmarie.bsky.social
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...
www.sciencedirect.com
Reposted by Marie Simonin
prof-braj-singh.bsky.social
We are searching for a 4- year postdoctoral fellow to work us on Microbial Ecology and Crop Disease Management.

More details below. The position will start next year.

Please circulate and repost.

jobs.smartrecruiters.com/WesternSydne...
Reposted by Marie Simonin
maddyseale.bsky.social
Wonderful to see this beautiful image on the cover of Science this week highlighting a paper that uses high resolution imaging to show the spatial patterns of bacterial attraction to glutamine from roots.
Paper here: www.science.org/doi/10.1126/...
Perspective here: www.science.org/doi/10.1126/...
microbialmarie.bsky.social
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
Reposted by Marie Simonin
microbialmarie.bsky.social
Had a fantastic time in the jardin du col du Lautaret (Alpes) for a machine learning in ecology training 🏔️👩‍💻
Thanks to @anaeefrance.bsky.social and @symbioticworld1.bsky.social for the organization!
I have so many ideas on how to test ML on our microbiota datasets 🤓
Reposted by Marie Simonin
ricardsole.bsky.social
How can we build a general theory of mutualistic communities? After five years, we finally completed a new Neutral Theory of Cooperation that is fully solved analytically and displays remarkable properties @jordipinero.bsky.social @artemyte.bsky.social @manlius.bsky.social arxiv.org/abs/2506.09737
Reposted by Marie Simonin
eloscicomm.bsky.social
👩‍🔬J'ai commencé un kit de démarrage "chercheuses en France" go.bsky.app/TBEzKC #FemmesEnScience

J'ai besoin de votre aide pour le remplir et donner de la visibilité aux chercheuses que vous connaissez et qui sont sur Bluesky !
▶️Taguez celles que vous connaissez, je les ajoute !
Reposted by Marie Simonin
aabdelfattah.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
seed-con.bsky.social
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
Reposted by Marie Simonin
evolvedbiofilm.bsky.social
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...
Reposted by Marie Simonin
inschool4life.bsky.social
New Paper!

Machine learning models that attempt to predict microbial load collapse outside of their training context with an R2<0!

In contrast, our Bayesian Partially Identified Models embrace uncertainty in unmeasured microbial load and consistently outpreform.

www.biorxiv.org/content/10.1...
Uncertainty Modeling Outperforms Machine Learning for Microbiome Data Analysis
Microbiome sequencing measures relative rather than absolute abundances, providing no direct information about total microbial load. Normalization methods attempt to compensate, but rely on strong, of...
www.biorxiv.org
Reposted by Marie Simonin
ggloor.bsky.social
Excited to summarize our most recent paper, "Explicit Scale Simulation for analysis of RNA-sequencing count data with ALDEx2" on controlling the false discovery rate (FDR) when analyzing high throughput sequencing (HTS) data. This has been an open problem since the dawn of HTS.
Reposted by Marie Simonin
mrillig.bsky.social
Pleased to share our new article in Cell Host & Microbe, a collaboration with the group of Zhong Wei at NJAU

Common mycorrhizal networks facilitate plant disease resistance by altering rhizosphere microbiome assembly

Free share link: authors.elsevier.com/c/1lnTD6t8JE...
microbialmarie.bsky.social
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...
www.sciencedirect.com
Reposted by Marie Simonin
dudney-joan.bsky.social
Super awesome new paper in #MEE describing #causal #detection of shifts in #biodiversity! So many great insights here—a must read for those interested in #causalinference

And love Fig 3! Congrats team! @lsantinieco.bsky.social

doi.org/10.1111/2041...
DAGs showing confounding, mediator and collider variables
Reposted by Marie Simonin
plosbiology.org
Reproducibility in #plant #microbiome experiments. This collaborative effort involving 5 labs achieved consistent, inoculum-dependent results, providing detailed protocols, datasets & best practices to promote #reproducibility in #PlantMicrobiome studies @plosbiology.org 🧪https://plos.io/41IVzzk
Top: Experimental design where five laboratories across three continents conducted the same experiment using shipped materials. These included a detailed protocol, SynComs and Mock solution stocks, light and temperature loggers, Brachypodium distachyon seeds, EcoFAB 2.0 device parts, and various lab supplies (growth medium, filters, sampling tubes). The authors inoculated B. distachyon plants with either a 16- or 17-member SynCom, with controls being axenic plants and medium-only technical control (Mock-inoculated), n = 7. They tested sterility and imaged roots at multiple time points, quantified plant biomass, analyzed exudate metabolite composition, and measured root and medium microbiomes. Bottom: An illustration showing a global centralized network of laboratories collaborating to study the rhizosphere microbiome and metabolome. Image credit: Kent Leech
Reposted by Marie Simonin
Reposted by Marie Simonin
symbionticism.bsky.social
Pig breeds reared on the same farm exhibit rippling waves of #phylosymbiosis with their bacterial communities, viruses, mobile genetic elements, and antibiotic resistance genes (ARGs). ARGs is a first. 👀
www.sciencedirect.com/science/arti...
Reposted by Marie Simonin
ingridblv426.bsky.social
I did an interview with the In Defense of Plants podcast about my journey into researching seed microbiota, some of what we currently know and what remains to be explored! You can check it out here: www.indefenseofplants.com/podcast/2025...
Ep. 539 - Exploring the Seed Microbiome — In Defense of Plants
In Defense of Plants' Matt Candeias talks with Dr. Gillian Bergmann about the microbiomes of seeds.
www.indefenseofplants.com