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Segmented filamentous bacteria undergo a structural transition at their adhesive tip during unicellular to filament development

Segmented Filamentous Bacteria (SFB) are understudied commensals that promote immune activation through their attachment to the intestinal epithelium. Here, Cruz et al. use cryo-electron microscopy and tomography to identify various surface structures and uncover a developmental transition at the SFB adhesive tip.

Ana Raquel Cruz
Benedikt H. Wimmer
Pamela Schnupf
ResearchOpen Access17 Dec 2025
Nature Communications

Volume: 17, P: 1-20
Intracellular offspring released from SFB filaments are flagellated

Electron micrographs show that mouse and rat segmented filamentous bacterium (SFB) unicellular intracellular offspring (IO) are flagellated and that flagellation occurs before IO release from SFB filaments.

Iris Nkamba
Céline Mulet
Pamela Schnupf
Research09 Dec 2019
Nature Microbiology

Volume: 5, P: 34-39
Growth and host interaction of mouse segmented filamentous bacteria in vitro

Development of a segmented filamentous bacteria and host cell co-culturing system that supports filamentation, segmentation, and differentiation to release viable infectious intracellular offspring.

Pamela Schnupf
Valérie Gaboriau-Routhiau
Philippe J. Sansonetti
Research19 Jan 2015
Nature

Volume: 520, P: 99-103

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