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Megan NY Lee

@meganleeny.bsky.social
114 followers 133 following 0 posts

PhD student @ ETH Zürich/Eawag | microbial systems ecology 🧫

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Reposted by Megan NY Lee
Prof Jenny Rohn @jennyrohn.bsky.social · 18/09/2026
“Bacterial growth is straightforward to measure, complex in origin and exquisitely sensitive to environmental and genetic perturbations.” Fantastic opening sentence to a deeply interesting topic. Never thought about bacterial growth like this before. #MicroSky #Bacteria
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Snorre Sulheim @sulheim.bsky.social · 18/09/2026
Finally online! Cross-feeding enables robust coexistence between four bacterial species | PNAS www.pnas.org/doi/10.1073/... #microsky
pnas.org
Cross-feeding enables robust coexistence between four bacterial species | PNAS
Resource supply is generally considered a dominant driver of microbial diversity. Here, using a four-species bacterial consortium, we asked whether...
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Anna S. Weiss @annasophieweiss.bsky.social · 08/09/2026
Over the past year, I’ve been thinking a lot about functional redundancy. A concept that seems so intuitive it almost feels boring, until you really start thinking it through. So excited to see the results of this brain-twisting thought process now out 🥳 authors.elsevier.com/sd/article/S...
authors.elsevier.com
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Microbial Systems Ecology Lab @micsysecolab.bsky.social · 02/09/2026
Excited to share Rachel Szabo's new perspective: "How many ways are there to be a phage?". Here, we propose quantitative phage phenotyping as the foundation for a trait-based framework for phage ecology. Give it a read! ecoevorxiv.org/repository/v...
ecoevorxiv.org
How many ways are there to be a phage?
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Microbial Systems Ecology Lab @micsysecolab.bsky.social · 11/06/2026
Very excited to share our new preprint, led by Alyssa Henderson! We ask why auxotrophy is so widespread in bacteria, and find that phylogeny is the dominant predictor of autotrophy, as opposed to environmental context. Check it out! 👇
doi.org
Amino acid auxotrophy is a feature of a distinct bacterial lifestyle across environments
Amino acid auxotrophy, the loss of biosynthetic potential for an amino acid, is a highly prevalent feature of microbial life, yet the evolutionary processes driving its distribution in nature remain u...
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Jay T Lennon @jaytlennon.bsky.social · 09/02/2026
www.growkudos.com/publications... New work with @ckarakoc.bsky.social and @shoestrapped.bsky.social in @pnas.org
growkudos.com
The hidden energy cost of cellular dormancy
Many organisms survive harsh environments by switching into special survival modes. Some bacteria do this by forming spores—dormant, highly resilient cells that can persist for years or even centuries...
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Guillaume Méric @gmeric.bsky.social · 08/12/2025
Pretty cool! Engineered periplasmic binding proteins+fluorophore sensors (for sugars+AAs) are used to report real-time extracellular metabolite dynamics in E. coli + many others species after 24h in plate readers, showing hierarchical substrate use. journals.asm.org/doi/full/10....
journals.asm.org
Real-time simultaneous monitoring of multiple analytes in bacterial cultures | Applied and Environmental Microbiology
Real-time monitoring of metabolites in bacterial cultures is crucial for advancing our understanding of microbial physiology, metabolic fluxes, and dynamic responses to environmental changes. This capability enables researchers to capture transient metabolic states that are often missed in endpoint measurements. The use of engineered periplasmic binding proteins as biosensors for this real-time metabolite monitoring represents a groundbreaking approach. By leveraging the natural specificity and high affinity of PBPs for small molecules, these biosensors can be engineered to detect a wide range of metabolites with exceptional sensitivity and temporal resolution. The integration of PBP-based biosensors into microbial research not only enhances our ability to study real-time metabolism but also provides a versatile tool for optimizing industrial bioprocesses and exploring bacterial infections and complex microbial ecosystems
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Glen Dsouza @nonresidentdesi.bsky.social · 02/12/2025
I am recruiting graduate students for Fall 2026! The Microbial Ecosystems Lab @hot-mes-asu.bsky.social at ASU studies microbial interactions, spatial ecology, and imaging-driven microbiome science. If you love microbes, microfluidics, or single-cell analysis, let’s talk! www.microbialeco.systems
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Sara Mitri @saramitri.bsky.social · 02/12/2025
New preprint from our lab www.biorxiv.org/content/10.1...! Andrea Dos Santos and Clément Vulin combine experiments and models showing how adding glucose can strengthen negative interactions between microbial species. This can be used in tandem with antibiotic treatment to inhibit pathogens!
Diagram illustrating "feed the enemy's enemy": ampicillin inhibits Pseudomonas aeruginosa. Citrobacter freundii acidifies the environment, further inhibiting P. aeruginosa.
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Stefany Moreno-Gámez @smorenogamez.bsky.social · 17/11/2025
Thrilled to share our new work uncovering how membrane transporters determine resource-size preferences in gut bacteria, and showing that deleting a single protein domain can shift a transporter’s preference from long to short fructans. www.biorxiv.org/content/10.1...
biorxiv.org
Niche partitioning by resource size in the gut microbiome
Niche partitioning promotes diversity of the human gut microbiota. However, the molecular basis of resource specialization and niche separation in the gut remains poorly understood. Here we show that ...
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Ákos T Kovács @evolvedbiofilm.bsky.social · 07/11/2025
Strain displacement in microbiomes via ecological competition Cool @natmicrobiol.nature.com publication by @erikbakkeren.bsky.social @vit-pi.bsky.social @meganleeny.bsky.social @microscape.bsky.social & Kevin Foster www.nature.com/articles/s41...
nature.com
Strain displacement in microbiomes via ecological competition - Nature Microbiology
Mathematical modelling and experimental tests reveal principles that govern displacement of a resident strain by an invader in microbial communities.
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Nature Microbiology @natmicrobiol.nature.com · 01/10/2025
#Perspective Estrela and Huang discuss nutrient starvation in the context of the gut microbiome, outlining what is known and highlighting key questions for future research to address knowledge gaps. #MicroSky #MicrobiomeSky 🦠 www.nature.com/articles/s41...
nature.com
How nutrient starvation impacts the gut microbiome - Nature Microbiology
In this Perspective, Estrela and Huang discuss nutrient starvation in the context of the gut microbiome, outlining what is known and highlighting key questions for future research to address knowledge gaps.
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FEBS Letters @febsletters.bsky.social · 19/09/2025
🎉🏅We congratulate 🌟Megan Lee 🌟 @eawag.bsky.social, winner of the FEBS Letters #PosterPrize at the EMBO/FEBS Lecture Course 'The New #Microbiology', recently held in Spetses, Greece! 🎉👏👏👏 #EMBOnewMicrobiology
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Martin Polz @polzlab.bsky.social · 11/08/2025
Longstanding collaboration with Scott Manalis where we have developed technology to measure single cell growth rates of bacteria in native seawater with some very surprising results. www.biorxiv.org/content/10.1...
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Leander Goldbach @lgoldbach.bsky.social · 09/09/2025
As a junior researcher who is at the doorstep of the journal publishing system this post resonates with me a lot. Journal publishing looks like a historical contingency that's kept alive by the career promises that Nature publications make. thescientistpapers.substack.com/p/how-to-be-...
thescientistpapers.substack.com
How to be a scientist in a post-journal world
When we created this site to write about things in science that need to be fixed, we chose not to start with publishing, even though it has been our preoccupation for decades.
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Ákos T Kovács @evolvedbiofilm.bsky.social · 20/08/2025
“release rates are negatively correlated with the value of metabolites, and that this relationship explains more variability in release rates than other frequently associated factors” - bioRxiv from @saramitri.bsky.social group👇🏼
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Will Shoemaker @shoestrapped.bsky.social · 10/08/2025
Challenges in interpreting functional redundancy and quantifying functional selection in microbial communities www.cell.com/cell-systems...
cell.com
Challenges in interpreting functional redundancy and quantifying functional selection in microbial communities
Microbiomes can exhibit low variability in functional profile despite high variability in taxonomic composition, often interpreted as indicating selection for functions. We show that reduced functiona...
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Ákos T Kovács @evolvedbiofilm.bsky.social · 04/08/2025
Habitat filtering more than microbiota origin controls microbiome transplant outcomes in soil #ISMEJournal by Senka Causevic et al from Jan Roelof van der Meer at @dmf-unil.bsky.social academic.oup.com/ismej/advanc...
academic.oup.com
Habitat filtering more than microbiota origin controls microbiome transplant outcomes in soil
Abstract. Human activities cause a global loss of soil microbiome diversity and functionality. One way to reverse this trend is through microbiota transpla
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Kiseok (Keith) Lee @kiseokmicro.bsky.social · 16/07/2025
Published in Nature today! Here, we sought to systematically ask how natural community's metabolism changes with the environment. A simple consumer-resource model can predict N-cycle metabolism (nitrate use) and, more importantly, the mechanism behind its change. www.nature.com/articles/s41...
nature.com
Functional regimes define soil microbiome response to environmental change - Nature
Experimental perturbation of soil pH leads to a generalizable model of the soil microcosm comprising three functional regimes with distinct mechanisms linking environmental change to metabolite dynami...
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Microbial Systems Ecology Lab @micsysecolab.bsky.social · 13/06/2025
Excited to share our new work! We found that bacteria can turn antagonism into a foraging strategy - by killing their neighbours, and eating their remains 🧫🔬💥
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Erik Bakkeren @erikbakkeren.bsky.social · 11/06/2025
Please read about how we think microbial metabolism might help us understand microbiomes a bit better! Also, please appreciate the mountain goat in Fig 1 ⛰️🐐 and that it also represents my joy for trail running and the mountains 😁
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PLOS Biology @plosbiology.org · 22/05/2025
#Bacteria use weapons to outcompete rivals, but what happens if they're transferred? @prokaryota.bsky.social @jdpal.bsky.social &co show that HGT of toxin #plasmids is rare but recipients can thrive under relaxed nutrient competition, reshaping bacterial warfare @plosbiology.org 🧪 plos.io/43vC3X7
 Modeling predicts that metabolic diversity increases the ecological impacts of weapon gene transfer. Modeling scenarios for each column are shown across the top row. Bottom row: Example dynamics of the strains (attacker, target, transconjugant) during a contest using parameters that correspond to the cross (X) shown in the parameter sweeps directly below.
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Stephan Kamrad @skamrad.bsky.social · 15/05/2025
Check out our new preprint! We systematically map proteomic and metabolomic interactions between >100 pairs of gut bacteria, detecting metabolic interactions and functionally-related clusters of proteins. www.biorxiv.org/content/10.1... @kiranrpatil.bsky.social
biorxiv.org
Interspecies interactions drive bacterial proteome reorganisation and emergent metabolism
Species in microbial communities must respond to the presence of others to stave off resource competition or to capitalise on new resources that may become available due to additional metabolic activi...
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Microbial Systems Ecology Lab @micsysecolab.bsky.social · 13/05/2025
How does metabolic dependency evolve at the single cell level? 🔄 In our new preprint, Divvya Ramesh combines microfluidics, microscopy and modelling to show that the benefits of gene loss are highly context dependent. Check it out here: www.biorxiv.org/content/10.1...
biorxiv.org
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James Bullock @jmbecologist.bsky.social · 25/04/2025
Is killing animals an effective way to regulate populations? “What does the science say? The answers and the caveats vary, case by case” “In the majority of cases, lethal control doesn’t do what people expect and want” www.pnas.org/doi/10.1073/...
pnas.org
Is killing animals an effective way to regulate populations? | PNAS
Is killing animals an effective way to regulate populations?
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Cameron Thrash @jcamthrash.bsky.social · 24/04/2025
Paradox of the Sub‐Plankton: Plausible Mechanisms and Open Problems Underlying Strain‐Level Diversity in Microbial Communities enviromicro-journals.onlinelibrary.wiley.com/doi/10.1111/... #jcampubs
enviromicro-journals.onlinelibrary.wiley.com
Paradox of the Sub‐Plankton: Plausible Mechanisms and Open Problems Underlying Strain‐Level Diversity in Microbial Communities
“Paradox of the sub-plankton: Plausible mechanisms and open problems underlying strain-level diversity in microbial communities” by Akshit Goyal* and Griffin Chure*. This work highlights the limitati...
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Glen Dsouza @nonresidentdesi.bsky.social · 30/03/2025
Excited about microbiomes and want to study them at the single-cell level? Join our team to pioneer research using microfluidics paired with automated timelapse microscopy. We're hiring motivated postdocs to push the boundaries of microbial ecology! Apply now: apply.interfolio.com/165601
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SeppeKuehnLab @seppekuehnlab.bsky.social · 24/03/2025
It’s increasingly clear that the language of microbial communities is one of resources. Conserved metabolism leads to regular, reliable resource flows across ecosystems—from the gut to wastewater. In complex communities, one serious challenge is: who is eating what?
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Damian Carrington @dpcarrington.bsky.social · 18/03/2025
New research Even under optimistic scenarios for carbon sequestration in pasture soils, grass-fed beef is *more* carbon intensive than industrial beef And 3 to 40 times as carbon intensive as most plant and animal alternatives www.pnas.org/doi/full/10....
pnas.org
PNAS
Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...
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Katherine Xue @ksxue.bsky.social · 11/03/2025
What happens if you introduce 🦠vs 🦠🦠🦠 into a microbial community? Are larger microbial populations more likely to establish? Check out new work led by @goldmandoran.bsky.social that used experiments and theory to dive deep into this simple question. ⬇️ www.pnas.org/doi/10.1073/...
pnas.org
Competition for shared resources increases dependence on initial population size during coalescence of gut microbial communities | PNAS
The long-term success of introduced populations depends on both their initial size and ability to compete against existing residents, but it remain...
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Meaghan Castledine @mcastd.bsky.social · 03/03/2025
Community stability is usually assessed by invading single species from rare and measuring relative fitness. However does this hold up when multiple species invade from rare? We test this using our super stable microbial community 👇🏻
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Microbial Systems Ecology Lab @micsysecolab.bsky.social · 20/02/2025
Check out our new perspective on spatial patterns in microbial communities, the product of an exciting collaboration led by Alyssa Henderson and @adelpanta.bsky.social ! 🧫
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Trends in Microbiology @cp-trendsmicrobiol.bsky.social · 06/02/2025
📢Sarah Lebeer (@sarahlebeer.bsky.social) and colleagues at the Isala team call for a more comprehensive, global, and inclusive understanding of the #vaginal #microbiome, critically reflecting on the use of 'race' and 'ethnicity' in studies. Read the Opinion piece here: www.cell.com/trends/micro...
cell.com
Diversity in women and their vaginal microbiota
Women’s health is essential to global societal and economic wellbeing, yet health disparities remain prevalent. The vaginal microbiota plays a critical role in health, with research indicating that re...
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Cameron Thrash @jcamthrash.bsky.social · 06/01/2025
Collective dynamical regimes predict invasion success and impacts in microbial communities www.nature.com/articles/s41... #jcampubs
nature.com
Collective dynamical regimes predict invasion success and impacts in microbial communities - Nature Ecology & Evolution
Predicting invasion outcomes in microbial communities is challenging. Here the authors demonstrate that these outcomes in both theoretical and experimental microbial communities can be predicted based...
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Erik Bakkeren @erikbakkeren.bsky.social · 30/12/2024
Just as the year ends, I wanted to share some news! I will be starting at the University of Calgary as an Assistant Professor in Sept. 2025 🇨🇦 Very excited to continue to work on understanding and editing microbiomes using ecology with new colleagues and coworkers! Stay tuned for recruitment updates
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Microbial Systems Ecology Lab @micsysecolab.bsky.social · 26/11/2024
Thrilled to announce that Matthias Hülsmann's new perspective is now out in @naturemicrobiol.bsky.social! This exciting work is shaping how our group thinks about collective microbiome metabolism. Check it out! www.nature.com/articles/s41...
nature.com
A framework for understanding collective microbiome metabolism - Nature Microbiology
This Perspective explores why microbiome members perform partial metabolism of substrates and suggests that proteome efficiency is a driver of collective microbiome metabolism.
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Divya Choudhary @divyach.bsky.social · 17/11/2024
1/ Excited to share my final PhD work out now! The master regulator OxyR orchestrates bacterial oxidative stress response genes in space and time
cell.com
The master regulator OxyR orchestrates bacterial oxidative stress response genes in space and time
Bacteria rewire gene expression to survive stress, but the logic of these changes can remain elusive in bulk studies. Using single-cell imaging, Choudhary et al. reveal that the gene expression patter...
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Noah Fierer @noahfierer.bsky.social · 07/11/2024
This is a cool paper by @nonresidentdesi.bsky.social et al. Bacteria feeding off the carcasses of their prey. www.biorxiv.org/content/10.1...
biorxiv.org
Antagonism as a foraging strategy in microbial communities
In natural habitats, nutrient availability often limits bacterial growth. We discovered that bacteria can overcome this limitation by acquiring nutrients through lysing neighboring cells via contact-d...
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SeppeKuehnLab @seppekuehnlab.bsky.social · 25/10/2024
This is a really important perspective on microbial ecology/evolution (Balakrishnan & Cremer). Quantitative physiology shows that microbes do not optimize growth, but instead express unutilized proteins that confer distinct dynamics when environments change. www.sciencedirect.com/science/arti...
sciencedirect.com
Conditionally unutilized proteins and their profound effects on growth and adaptation across microbial species
Protein synthesis is an important determinant of microbial growth and response that demands a high amount of metabolic and biosynthetic resources. Des…
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Sara Mitri @saramitri.bsky.social · 16/10/2024
Scientific papers hide a lot of the ups and downs people go through to get to the final version. Read more about @arias_flora's journey tinyurl.com/454pd989 And here's the paper: www.nature.com/articles/s41...
tinyurl.com
Evolving Solutions: Breeding Bacterial Communities to Battle Pollution
Scientific research may seem neat in publications, but it’s a complex journey of trial and error. Our project, which used artificial selection to breed microbial communities to battle pollution, requi...
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Sara Mitri @saramitri.bsky.social · 06/02/2024
Amazing to see this finally out!!From competition to collaboration: we show how 2 bacterial species that compete for a carbon source can interact positively in a toxic environment, with one species removing ROS to the benefit of the other plos.io/3SOvRnZ congrats Aurore Picot & Rita Di Martino
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Olaya Rendueles @olayarendueles.bsky.social · 23/10/2023
Check this out from my colleagues in Eduardo Rocha’s lab in collab with P Glasser & G Achaz. Driven by Charles Coluzzi Bacteria are not equal when it comes to adaptation: how gene flow shapes future adaptive mutations in core genes academic.oup.com/mbe/article/... #MicroSky
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