Elise Bornet
@elisebor.bsky.social
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📥 181
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Microbiology/ science / and other hobbies 🦜🌸🍺🐶🧬 Westermann Lab
reposted by
Elise Bornet
Westermann Lab
16 days ago
New preprint from the lab, in collaboration with Wenhan Zhu (U Vanderbilt): using dual RNA-seq during B. theta colonization of the host mucous layer, we identify IroR--an iron-response sRNA that tunes capsule expression and facilitates adaptation to iron limitation.
doi.org/10.1101/2025.09.08.672848
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An RNA regulates iron homeostasis and host mucus colonization in Bacteroides thetaiotaomicron
Symbiotic bacteria in the human intestinal microbiota provide many pivotal functions to human health and occupy distinct biogeographic niches within the gut. Yet the molecular basis underlying niche-s...
https://doi.org/10.1101/2025.09.08.672848
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Second that !!!! Super excited and honoured to see this work on Bactetoides morphotypes spotlighted by Qinnan Yang and Eric Martens in Trends in Microbiology.
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2 months ago
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Elise Bornet
Westermann Lab
3 months ago
Congrats to Gianluca Prezza (
@gprezza.bsky.social
) for reveiving the 2025 PhD Award from the Friends of the Helmholtz Centre for Infection Research (HZI)!👏 The award honours excellent PhD theses from the field of life sciences at HZI partner universities. His thesis focused Bacteroides' RNA biology.
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Elise Bornet
Cell Reports
3 months ago
Low-input RNA-seq suggests metabolic specialization underlying morphological heterogeneity in a gut commensal bacterium
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Low-input RNA-seq suggests metabolic specialization underlying morphological heterogeneity in a gut commensal bacterium
Bornet et al. investigate the morphological heterogeneity of Bacteroides thetaiotaomicron cells observed both in laboratory culture and inside the mammalian GI tract. The authors show that cell size is only partially dictated by cell-cycle progression and is associated with distinct gene expression programs that suggest metabolic differentiation.
http://dlvr.it/TLVXL6
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reposted by
Elise Bornet
Westermann Lab
3 months ago
Our latest:
www.cell.com/cell-reports/fulltext/S2211-1247(25)00615-1
. Links Bacteroides cell size w/ gene expression. Protocol works even for single cells. 🦠 Shoutout to
@elisebor.bsky.social
,
@emmanuel-saliba.bsky.social
,
@lbarquist.bsky.social
,
@jorg-vogel-lab.bsky.social
, Till Strowig & KC Huang.
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Low-input RNA-seq suggests metabolic specialization underlying morphological heterogeneity in a gut commensal bacterium
Bornet et al. investigate the morphological heterogeneity of Bacteroides thetaiotaomicron cells observed both in laboratory culture and inside the mammalian GI tract. The authors show that cell size i...
https://www.cell.com/cell-reports/fulltext/S2211-1247(25)00615-1
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Excited to share my PhD work! We used a low-input RNA-seq protocol to dig into what drives cell shape differences in Bacteroides thetaiotaomicron. Congrats and big thanks to all co-authors 🧫🧬.
add a skeleton here at some point
3 months ago
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reposted by
Elise Bornet
Westermann Lab
7 months ago
📣Fully funded PhD position available in our lab at
@uniwuerzburg.bsky.social
, in collaboration with Dr. Connolly at Newcastle University (
@ruamicro.bsky.social
). "Dissecting the RNA-centric landscape of microbiota-pathogen interactions in the gut”. 🦠 Apply here:
www.uni-wuerzburg.de/karriere/sin...
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PhD student position at the Chair for Microbiology
https://www.uni-wuerzburg.de/karriere/single/news/phd-student-position-at-the-chair-for-microbiology/
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reposted by
Elise Bornet
Lars Barquist
8 months ago
Interested in collecting, sharing, and interacting with large collections of bacterial functional genomics data (RNA-seq, Tn-seq/TraDIS, etc.)? Check out our new web platform, Micromix, with case studies for Salmonella and Bacteroides! 🧫🧬🖥️🧪 Thread 1/n
academic.oup.com/gigascience/...
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Micromix: web infrastructure for visualizing and remixing microbial ‘omics data
Abstract. Micromix is a flexible web platform for sharing and integrating microbial omics data, including RNA sequencing and transposon-insertion sequencin
https://academic.oup.com/gigascience/article/doi/10.1093/gigascience/giae120/7997150
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reposted by
Elise Bornet
Westermann Lab
9 months ago
Is it anything Hfq-like (RNA chaperone)? Or similar to CsrA (global translation modulator)? We don't know yet. But as it stands, Bacteroidota RRM proteins appear as excellent candidates to map post-transcriptional networks in a substantial fraction of the microbiota.
www.nature.com/articles/s41...
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