Stress-adapted codon usage enables efficient virulence-gene expression in Salmonella www.biorxiv.org/content/10.6...

Stress-adapted codon usage enables efficient virulence-gene expression in Salmonella

Virulence genes in bacterial pathogens are often A/T-rich and horizontally acquired, yet they must be translated efficiently under stress and nutrient limitation encountered during infection. Here we ...

biorxiv.org

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

Very happy to see the second story from my PhD out in @currentbiology.bsky.social An exciting project where we explored the roles of secretion systems and gliding motility in predatory behavior in F. johnsoniae. www.cell.com/current-biol...

Type VI and type IX secretion systems and gliding motility contribute to facultative predation by Flavobacterium johnsoniae

Paillat et al. show that Flavobacterium johnsoniae combines type VI and type IX secretion systems with gliding motility to efficiently kill diverse bacterial competitors. They demonstrate that nutrien...

cell.com

My third PhD anniversary 🎂 begins as a research fellow at UMR #PVBMT from @cirad.bsky.social La Réunion. Hello #xanthomonas world 🦠🌱 Thanks to all that contributed to this goal achievement ✨

So -- What are Ralstonia and why are they goopy? Ralstonia are bacterial pathogens of plants. They colonize and clog the water-transporting xylem vessels, causing rapid-onset wilt disease—they can fatally wilt plants within days. This timelapse by Jonathan Jacobs shows a sped-up time-course.

Tiffany Lowe-Power stands with Minnesota@tlowepower.bsky.social · last yr.

Excited to (soon) share our collaborative pre-print that answers the question "Why are Ralstonia so goopy?" (Bacterial wilt streaming video from @alabamaed1.bsky.social )

This is the end of my journey at @irhs-angers.bsky.social as a post-doc 🎓 Thank you so much @emersys-irhs.bsky.social for hosting me during the two last years and helping me to develop more🔬 Scientific products of our projects on the T6SS biology of Stenotrophomonas rhizophila are coming 👀

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 · 8mo 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/...

This paper solves the puzzle that I wrote about in my chapter 5 / future directions of my PhD thesis! It's really interesting what comes out of these in planta experimental evolution studies journals.asm.org/doi/full/10....

Disruption of putrescine export in experimentally evolved Ralstonia pseudosolanacearum enhances symbiosis with Mimosa pudica | mBio

Rhizobia, the nitrogen-fixing symbionts of legumes, emerged through repeated and independent horizontal transfers of some essential symbiotic genes. However, these transfers alone are often insufficie...

journals.asm.org

An unexpected mechanism for population heterogeneity in the gut microbiome: www.cell.com/cell-host-mi...

A commensal bacterium secretes effector proteins to establish population heterogeneity in the gut

Zagieboylo and colleagues demonstrate that the human commensal Bacteroides thetaiotaomicron secretes two self-targeting proteins that induce heterogeneity within its own population. Differential expre...

cell.com

Time-resolved bottleneck analysis in bacterial infection dynamics https://www.biorxiv.org/content/10.1101/2025.11.21.689558v1