Sign in

Alice Maestri

@alicemaestri.bsky.social
290 followers 119 following 33 posts

Postdoc Institut Pasteur - evolution of bacteria and MGEs

PostsRepliesMedia
Reposted by Alice Maestri
Fabienne Benz @fabbenz.bsky.social · 12/05/2026
I’ve started my SNSF Ambizione Group Leader position at the University of Zurich 🧬 We will study plasmid evolution, plasmid interactions, and CRISPR-Cas systems to better understand antibiotic resistance spread. Very grateful to everyone who supported me along the way.
167810
Reposted by Alice Maestri
Raphael Laurenceau @raphael-microb.bsky.social · 16/04/2026
🔈Paper out! We turned the most fascinating phage host-switch mechanism, diversity-generating retroelements, into a programmable mutagenesis tool, DGRec. You can perform targeted hypermutation of any 50-200bp sequence directly in vivo in E. coli www.nature.com/articles/s41...
nature.com
Diversity-generating retroelements for programmable targeted hypermutagenesis - Nature Biotechnology
Diversity-generating retroelements are engineered for directed evolution in E.coli.
59843
Reposted by Alice Maestri
Olaya Rendueles @olayarendueles.bsky.social · 26/03/2026
So happy to see this finally published in @plosbiology.org! This is the first chapter of @julielebris.bsky.social PhD thesis demonstrating how capsules are exchanged by plug-and-play dynamics w/ @epcrocha.bsky.social #microsky @klebclub.bsky.social Link below- Check out her 🧵 for more details!
doi.org
Plug-and-play evolution of the Klebsiella pneumoniae capsule locus enables serotype exchange across genetic backgrounds
How complex multi-gene systems evolve across genetic backgrounds without disruptive epistasis remains unclear, particularly in highly exchangeable loci such as the capsule of Klebsiella pneumoniae. Th...
25433
Reposted by Alice Maestri
Jorge Moura de Sousa @jmouradesousa.bsky.social · 02/03/2026
➡️ preprint from the lab! Bacteria have loads of antiviral defences in their mobile genetic elements (MGEs). So when MGEs move between bacteria, the defences move with them, generating a fast turnover of defences in bacteria. But what about the antiviral defence turnover in the MGEs themselves? 🤔 🧵👇
biorxiv.org
17747
Reposted by Alice Maestri
David Bikard @dbikard.bsky.social · 28/01/2026
🚨 Hiring Alert! 🚨My lab at Institut Pasteur is recruiting several Postdocs! We have exciting open projects in: 🦠 Synthetic Biology and🛡️ Bacterial Immunity. Come do great science with us in the middle of Paris! 🇫🇷🥐 research.pasteur.fr/en/job/postd...
research.pasteur.fr
Postdoctoral position - Synthetic Biology / Bacterial Immunity - Research
The Bikard lab at Institut Pasteur in Paris is seeking to hire postdoctoral researchers. We are investigating bacteria / bacteriophages interactions, and the genetic innovation that happens at this in...
07481
Reposted by Alice Maestri
Eduardo Rocha @epcrocha.bsky.social · 08/09/2025
Willing to join us @pasteur.fr for a PhD for a project on how interactions between mobile genetic elements shape bacterial adaptation? Subject to be tailored to candidates with keen interest in evolution, genomics, computational biology, microbiology. Check www.pasteur.fr/en/education...
pasteur.fr
Pasteur-Paris University International doctoral program​ (PPU)
OverviewIn 2009, the Institut Pasteur, the world leading biomedical research institute founded by Louis Pasteur in 1887, inaugurated the Pasteur Paris-University (PPU) international doctoral program i...
04557
Alice Maestri @alicemaestri.bsky.social · 12/09/2025
We're looking for a technician at Institut Pasteur for experimental work on satellite-phage-bacteria interactions, working directly with @jmouradesousa.bsky.social and myself in the lab of @epcrocha.bsky.social ! ANR funded. Link to the job emploi.pasteur.fr/offre-de-emp... Thx for sharing!
emploi.pasteur.fr
INSTITUT PASTEUR - Technicien de recherche Microbiologie H/F
01318
Reposted by Alice Maestri
Eduardo Rocha @epcrocha.bsky.social · 14/04/2025
Great collaboration with @fredoleroux.bsky.social . Kudos for everyone, esp. Charles Bernard & Yannick Labreuche. Thanks to the funders and @pasteur.fr @cnrsbiologie.bsky.social @umontreal.ca @sbroscoff.bsky.social Here's the paper in OA: doi.org/10.1093/isme...
doi.org
Adaptive genomic plasticity in large-genome, broad-host-range vibrio phages
Abstract. The host range of a bacteriophage—the diversity of hosts it can infect—is central to understanding phage ecology and applications. Whereas most w
0158
Reposted by Alice Maestri
Eduardo Rocha @epcrocha.bsky.social · 27/03/2025
Phage satellites are now known to be very diverse, numerous and ancient. They pose many evolutionary, ecological and mechanistic questions. Lots of fun in perspective! Great pleasure to write this review to show it, with @jrpenades.bsky.social @dbikard.bsky.social Kim Seed & John Chen.
18755
Reposted by Alice Maestri
Olaya Rendueles @olayarendueles.bsky.social · 09/04/2025
Our review on recent advances in #PhageTherapy against Klebsiella pneumoniae is out! We analyze KP-phage interactions from an eco-evo perspective, summarize many lab and clinical trials, and discuss novel approaches like genetic engineering & machine learning. #microsky doi.org/10.1371/jour...
doi.org
Phage therapy for Klebsiella pneumoniae: Understanding bacteria–phage interactions for therapeutic innovations
Klebsiella pneumoniae (KP) is a Gram-negative bacterium that commonly resides in the human gastrointestinal tract and can also act as an opportunistic pathogen and cause extra-intestinal infections. K...
13624
Reposted by Alice Maestri
Multi-Defence @multidefence.bsky.social · 10/04/2025
🔬 Three fronts in bacterial defense! At EMBO symposium this week in Paris, our PIs showcased: • @mfwhite2.bsky.social: cyclic nucleotide defence signaling • Prof. Stineke Van Houte: prophage warfare in P. aeruginosa • Prof. Tim Blower: autoregulating toxins & phage defence
1237
Reposted by Alice Maestri
Ellinor Alseth @ellinoralseth.bsky.social · 10/04/2025
Mystique is here! When I started my position at @cmdi.bsky.social there were no readily available phage against my A. baumannii focal strain. The solution? Finding my own phage ofc. Mystique is a broad host range Acinetobacter phage, and I'm thrilled to see this work out today #PhageSky 🧪🦠
journals.plos.org
Mystique, a broad host range Acinetobacter phage, reveals the impact of culturing conditions on phage isolation and infectivity
Author summary Bacterial infections caused by Acinetobacter baumannii are a major global health concern due to high antibiotic resistance, earning it a critical priority pathogen ranking by the WHO. P...
65018
Reposted by Alice Maestri
Jamie Hall @jpjhall.bsky.social · 18/02/2025
I'm delighted to announce that the 2025 @microbiologysociety.org meeting on "Understanding and predicting microbial evolutionary dynamics" will be held in Liverpool 26-27 November 2025! Abstract submission will open soon... #microsky 🧪🧫🦠 microbiologysociety.org/event/societ...
microbiologysociety.org
Understanding and predicting microbial evolutionary dynamics - 2025 meeting
316192
Reposted by Alice Maestri
Lingchen He 何灵尘 @lingchenhe.bsky.social · 13/02/2025
@jonaszpatkowski.bsky.social and I pinpointed tail piracy as a new mechanism of horizontal gene transfer and explained the wide spread of cf-PICIs among different bacterial species and viromes.
151
Reposted by Alice Maestri
Aude Bernheim @audeber.bsky.social · 13/01/2025
👋 Hi antiphage defense community, we are soon releasing an update of DefenseFinder. We are doing our best to include all the great discoveries from the community, but with so much going on we might miss things. Please answer wt preprints/papers with new systems or mail/git them to us. 🙏
36037
Reposted by Alice Maestri
Jamie Hall @jpjhall.bsky.social · 31/10/2024
Happy Hallowe’en! We made a spooky AMR vs bacteriophage comic free to download and use. Take a look and give @andthemicrobes.bsky.social a follow! (There’s even a prequel on plasmids and bacterial diversity!) 🎃🦠🧬👻 bsky.app/profile/andt...
095
Reposted by Alice Maestri
Ellinor Alseth @ellinoralseth.bsky.social · 21/10/2024
Hi to all my new (and old) followers! So fun to see more people joining us here. I'm currently an independent post-doc and evolutionary microbiologist at Georgia Tech in the US, studying Acinetobacter baumannii – phage dynamics. Welcome! www.biorxiv.org/content/10.1...
biorxiv.org
Environmental differences impact Acinetobacter baumannii phage isolation and infectivity
With the global rise of antimicrobial resistance, phage therapy is increasingly re-gaining traction as a strategy to treat bacterial infections. For phage therapy to be successful however, we first ne...
2176
Reposted by Alice Maestri
Eduardo Rocha @epcrocha.bsky.social · 15/10/2024
Our study on the (huge) variations in transformation rates is now out in OA! Key question: why are so many strains non-transformable if the many recent transitions to non-transformability seem deleterious? doi.org/10.1371/jour...
doi.org
Intragenomic conflicts with plasmids and chromosomal mobile genetic elements drive the evolution of natural transformation within species
Bacterial species exhibit large variations in their transformation rates. This study of Legionella pneumophila and Acinetobacter baumannii shows that their transformation rates evolve by sudden quick ...
02723
Alice Maestri @alicemaestri.bsky.social · 06/09/2024
The view from my new workplace :) Can't possibly be happier to be working on phage satellites with @jmouradesousa.bsky.social , @epcrocha.bsky.social and the team!
020
Alice Maestri @alicemaestri.bsky.social · 18/08/2024
My official PhD graduation last month was the closing step of an incredible journey, marking the end of my time in Cornwall!
131
Reposted by Alice Maestri
Multi-Defence @multidefence.bsky.social · 23/07/2024
We have another position advertised 😃 with @taylorlabgroup.bsky.social in Bath to understand the regulation of multi layered defence systems!! You can apply at www.bath.ac.uk/jobs/Vacancy... Applications close on 9th September.
066
Reposted by Alice Maestri
Tiffany Taylor @taylorlabgroup.bsky.social · 13/08/2024
New paper looking at the spread of CRISPR-Cas in bacterial populations. Congratulations to @josie-e.bsky.social on her first, first author paper 🎉! Check out her brilliant thread below. Happy to see this work out in the wild.
0125
Reposted by Alice Maestri
Josie Elliott @josie-e.bsky.social · 13/08/2024
Excited to share my 1st paper with @bridgetwatson.bsky.social @taylorlabgroup.bsky.social Edze Westra Sylvain Gandon & David McLeod academic.oup.com/ismej/articl... where we ask “when would using a defence system (CRISPR-Cas) be selectively advantageous over mutations that block phage binding?”1/10
academic.oup.com
Conditions for the spread of CRISPR-Cas immune systems into bacterial populations
Abstract. Bacteria contain a wide variety of innate and adaptive immune systems which provide protection to the host against invading genetic material, inc
22410
Reposted by Alice Maestri
Michael Brockhurst @brockhurstlab.bsky.social · 31/07/2024
1st foray into T6SS with talented @mermanchester.bsky.social fellow Will Smith: eco-evo models and experimental evolution show how and why producing multiple toxins blocks resistance evolution (even though cross-resistance can evolve under single-toxin attack) www.biorxiv.org/content/10.1...
biorxiv.org
Multiplicity of Type 6 Secretion System toxins limits the evolution of resistance
bioRxiv - the preprint server for biology, operated by Cold Spring Harbor Laboratory, a research and educational institution
12819
Reposted by Alice Maestri
Mark A. Hanson @hansonmark.bsky.social · 08/08/2024
Hiring a bioinformatician at @uniofexeter.bsky.social to work with the Exeter sequencing facility. Please spread the word! jobs.exeter.ac.uk/hrpr_webrecr...
jobs.exeter.ac.uk
Powered by MHR
0618
Reposted by Alice Maestri
Jamie Hall @jpjhall.bsky.social · 23/07/2024
🆕 I’m looking for a postdoc to join the group! This is for a project as part of the @multidefence.bsky.social consortium, looking at genome defences and horizontal gene transfer in Pseudomonas. Deadline 12th August. 🧵 my.corehr.com/pls/ulivrecr...
my.corehr.com
'
11537
Alice Maestri @alicemaestri.bsky.social · 06/08/2024
I'm so happy to see the main part of my PhD work published in Cell Host & Microbe! We discover and characterise MADS (Methylation Associated Defense System) in its native host, a clinical isolate of 𝘗𝘴𝘦𝘶𝘥𝘰𝘮𝘰𝘯𝘢𝘴 𝘢𝘦𝘳𝘶𝘨𝘪𝘯𝘰𝘴𝘢 strain SMC4386 www.cell.com/cell-host-mi...
cell.com
The bacterial defense system MADS interacts with CRISPR-Cas to limit phage infection and escape
The coevolution between bacteria and mobile genetic elements has resulted in a large diversity of defense systems. Maestri et al. describe an innate immune system, MADS (methylation-associated defense...
277
Reposted by Alice Maestri
Olaya Rendueles @olayarendueles.bsky.social · 11/07/2024
7 yrs ago, I got very lucky when I got my permanent researcher position @cnrs.bsky.social Now, even more so. I just got promoted to director of research (associate professor?) Thx to all who contributed closely or loosely & special thx to PhD student julie for a wonderful & unexpected gift!
031
Reposted by Alice Maestri
Ellinor Alseth @ellinoralseth.bsky.social · 11/07/2024
While struggling to isolate a phage at all, we also discovered that other phages in our collection actually *can* infect AB5075... but only in liquid culture. In other words, phages that do not plaque on a bacterial lawn may still be able to infect in liquid!
231
Reposted by Alice Maestri
Ellinor Alseth @ellinoralseth.bsky.social · 11/07/2024
Going from PhD to independent postdoc has been hard, and switching bacteria didn't make it easier. Especially when I found out that my A. baumannii (5075) has/had no available phage. But, that meant I had a gap to fill! And that's resulted in this work here: www.biorxiv.org/content/10.1...
biorxiv.org
Environmental differences impact Acinetobacter baumannii phage isolation and infectivity
bioRxiv - the preprint server for biology, operated by Cold Spring Harbor Laboratory, a research and educational institution
32215
Reposted by Alice Maestri
Fabienne Benz @fabbenz.bsky.social · 16/05/2024
Sharing our latest paper as my first post here 🔵 💙 Plasmids encode Type IV CRISPR-Cas to fight other plasmids💥⚔️ Now out in Cell Host & Microbe www.sciencedirect.com/science/arti...
sciencedirect.com
Type IV-A3 CRISPR-Cas systems drive inter-plasmid conflicts by acquiring spacers in trans
Plasmid-encoded type IV-A CRISPR-Cas systems lack an acquisition module, feature a DinG helicase instead of a nuclease, and form ribonucleoprotein com…
21812
Reposted by Alice Maestri
Michael Brockhurst @brockhurstlab.bsky.social · 10/05/2024
Nice paper from Tim Cooper from earlier this year showing variation in AMR plasmid cost across E. coli strains explained by a genetic conflict with a resident prophage #microsky journals.asm.org/doi/full/10....
173
Reposted by Alice Maestri
c0nc0rdance @c0nc0rdance.bsky.social · 26/07/2023
🧪Any time you think you understand viruses, they get weirder. Meet Jingmen tick virus (JMTV), the 1st multipartite virus of primates discovered. What's weird about it? Imagine a group of people who travel everywhere together, but in different cars. That's the JMTV genome.
Transmission EM image of JMTV in (A) infected cells and (B) cell culture supernatant. The viral particles are indicated by the orange arrowheads.

Source: https://www.pnas.org/doi/10.1073/pnas.1324194111
1014638
Reposted by Alice Maestri
Sean Meaden @seanmeaden.bsky.social · 03/05/2024
I've got a fully funded, 4-year PhD position available to work on virus-bacteria interactions in soils. Part of the GenerationResearch scheme at York aimed at widening access to postgrad research. Please share! generationresearch.ac.uk/phd_proposal...
02436
Reposted by Alice Maestri
Jorge Moura de Sousa @jmouradesousa.bsky.social · 29/04/2024
New paper from the lab, the mysteries involving the genetic elements that move by being mobilized by other MGEs. Hitcher Genetic Elements are distinctive, ancient and diverse. ecoevorxiv.org/repository/v...
ecoevorxiv.org
Hijackers, hitchhikers, or co-drivers? The mysteries of microbial mobilizable genetic elements
11010
Reposted by Alice Maestri
Eduardo Rocha @epcrocha.bsky.social · 04/04/2024
New job offer: we search a postdoc (bioinformatics) to work on mobile genetic elements and gene flow in bacteria, with a focus on antibiotic resistance within a consortium including bioinformatics, synthetic biology, epidemiology & biochemistry. See research.pasteur.fr/en/job/postd... #MicroSky
02437
Reposted by Alice Maestri
Michael Brockhurst @brockhurstlab.bsky.social · 28/03/2024
Using phage therapy to resensitize P aeruginosa to antibiotics in murine lung infection, featuring @mermanchester.bsky.social’s Rosanna Wright, led by Jo Fothergill www.nature.com/articles/s41...
11613
Reposted by Alice Maestri
Michael Brockhurst @brockhurstlab.bsky.social · 08/03/2024
BBSRC 2-year PDRA position to work on ecology & evolution of phage therapy with synthetically engineered phages. Part of an exciting multi-university consortium & UK’s Engineering Biology priority. Synthetic genomics; experimental evolution; AMR. www.jobs.manchester.ac.uk/Job/JobDetai... #microsky
11426
Reposted by Alice Maestri
Anne Chevallereau @annechevallereau.bsky.social · 09/02/2024
🎊 First post here 🎊 I am happy to announce that I will join the MMSB lab in Lyon in September to start my own group to study the evolution of phage-bacteria interactions 🦠 🔬🧫 Postdoc position available 🧬🧪 More details below 👇 emploi.cnrs.fr/Offres/CDD/U...
071
Alice Maestri @alicemaestri.bsky.social · 17/02/2024
Very nice to see published our first sLola article! Working with every single member of this consortium is really great:)
020
Reposted by Alice Maestri
Michael Brockhurst @brockhurstlab.bsky.social · 17/02/2024
First paper from the MultiDefence consortium reviewing what we know about multi-layered genome defences in bacteria. Supported by BBSRC sLoLa led by Edze Westra. Aleksei Agapov did a great job pulling it all together! www.sciencedirect.com/science/arti...
01312
Reposted by Alice Maestri
Sean Meaden @seanmeaden.bsky.social · 11/01/2024
Just out in The ISME Journal, a paper from my time in the Westra lab. We find that the extent of phage exposure shapes subsequent resistance dynamics over longer timescales (up to 30 days). And huge thanks to first authors @bridgetwatson.bsky.social and Loris for mammoth experiments!
0159
Reposted by Alice Maestri
MEEhubs @meehubs.bsky.social · 11/01/2024
Congratulations to our MEEhubs2024 Oxford Poster Award winner @josie-e.bsky.social! 🎉🏆 Prize generously sponsored by the Microbiology Society UK
two women holding an award certificate, standing in front of a conference presentation slide
183
Reposted by Alice Maestri
Olaya Rendueles @olayarendueles.bsky.social · 12/01/2024
With a small pinch in my ❤️, I leave Institu Pasteur for the 3rd time. More than 12 years of scientific endeavors, challenges, collaborations & friends in genomes genetics & microbio dpt IP Thanks to @epcrocha.bsky.social for the last 8 yrs, 14 papers, 2 national grants, 2 prizes. OFF to the ☀️
1152
Reposted by Alice Maestri
Steve Paterson @scottishwormboy.bsky.social · 17/12/2023
Job alert. We’re looking for head of dept in ecology, evolution and behaviour at UoLiverpool. Fantastic group of colleagues and a chance to provide leadership in addressing climate change. my.corehr.com/pls/ulivrecr...
my.corehr.com
Job Specification
0710
Reposted by Alice Maestri
Tiffany Taylor @taylorlabgroup.bsky.social · 14/12/2023
I was very happy to write a spotlight article with J. Horton & @matthewjshepherd.bsky.social on excellent recent work from A. Wong's lab, led by Nicole Filipow on the adaptive trajectory of 17 strains of P. aeruginosa to SCFM. 🧪https://www.sciencedirect.com/science/article/pii/S0966842X23003372
132
Reposted by Alice Maestri
Eduardo Rocha @epcrocha.bsky.social · 15/12/2023
New postdoc position in our lab for a project led by Marie Touchon (bioinformatics) and with O Tenaillon (experiments) on the evolution and dynamics of microbial genomes to understand their diversification by gene flow. Check research.pasteur.fr/en/job/postd...
22233
Reposted by Alice Maestri
Steve Paterson @scottishwormboy.bsky.social · 08/12/2023
Job opportunity in microbiomes at Liverpool. Initially short term but likely to be extended. Jo Fothergill and myself www.jobs.ac.uk/job/DEL318/p...
jobs.ac.uk
Postdoctoral Research Associate: Microbiome Innovation Centre (Grade 7) at University of Liverpool
An opportunity for an academic position as a Postdoctoral Research Associate: Microbiome Innovation Centre (Grade 7) is available, as advertised on jobs.ac.uk. Apply now and explore other academic job...
089
Reposted by Alice Maestri
Ákos T Kovács @evolvedbiofilm.bsky.social · 08/12/2023
Microbe of the month: Pseudomonas aeruginosa in Trends Microbiol www.cell.com/trends/micro...
02512
Reposted by Alice Maestri
Tiffany Taylor @taylorlabgroup.bsky.social · 04/12/2023
I am passionate about both doing and communicating evolutionary research effectively. If you are too, do check out this #PhD opportunity with me and Prof L Hurst. Deadline 11th Feb, Start Sept 2024, Funding available for home students (Sorry). #scicomm *Pls RP* www.findaphd.com/phds/project...
11316