Reposted by Rachel GregorPhil Knutson, PhD @philknutson.bsky.social · 01/10/2026Lignin chemistry!! I’ve drawn a line tree with the lignin polymer behind it. I’ve drawn it as one single polymer throughout! This messy, highly irregular biopolymer gives plants structural strength and helps protect their cell walls. #sciart #chemsky 313133
Reposted by Rachel Gregorshenvi.bsky.social @shenvi.bsky.social · 01/10/2026A few folks have asked how I make molecular animations from ChemDraw. Sadly, the answer has been “the old-fashioned way,” frame by frame. This was too slow. So I worked with Claude Science to create a webpage that animates your ChemDraws. Give it a try: rshenvi.github.io/cdxmorph/ 45413
Reposted by Rachel GregorWill Ratcliff @wcratcliff.bsky.social · 15/09/20261/17 Submissions are now open for the 2027 Microbial Population Biology GRC! We expect this meeting to be extraordinarily oversubscribed. If you want to come, time is of the essence--apply ASAP! June 27–July 2 • Andover, NH www.grc.org/microbial-po... 310572
Reposted by Rachel GregorMEEhubs @meehubs.bsky.social · 05/08/2026What, is it over already? MEEHubs2026 concluded just minutes ago. It's been a blast, and here are some stats for you: 711 registrations, 241 posters, 71 talks, 3 days, participants from 32 countries. Bye from all the hubs 🩵🩵🩵 #MEEHubs2026 #MEEHubs26 0299
Rachel Gregor @rachelgregor.bsky.social · 05/08/2026Just after wrapping an amazing three days in Montreal, I can say that I highly recommend organizing a hub! Hope to see you all again in 2028 011
Reposted by Rachel GregorCameron Thrash @jcamthrash.bsky.social · 22/05/2026Nutrient environments shape amino acid auxotrophy and cross-feeding www.biorxiv.org/content/10.6... #jcampubs 0103
Reposted by Rachel GregorSara Mitri @saramitri.bsky.social · 22/05/2026Check out our pre-print led by the fantastic Massimo Amicone, collaborating with the Bollenbach lab! tinyurl.com/4h9p8mfb We build a simple intuition on how ecological interactions affect resistance evolution by expanding evolutionary rescue theory and testing it with two large sets of experimentstinyurl.com 13721
Reposted by Rachel GregorMarkus Eichhorn @markuseichhorn.bsky.social · 07/05/2026Bingo! Do I win a prize now? 1122583
Reposted by Rachel GregorSean Gibbons 🦠💩 @gibbological.bsky.social · 24/04/2026Looks interesting 🤓: "Community context reshapes microbial proteomes and reduces functional overlap" @natmicrobiol.nature.com www.nature.com/articles/s41...nature.comCommunity context reshapes microbial proteomes and reduces functional overlap - Nature MicrobiologyBiotic interactions modulate protein abundance, reducing functional redundancy and increasing productivity in complex bacterial communities. 1152
Reposted by Rachel GregorLife Science Network @lifesciencenet.bsky.social · 27/03/2026Understanding how “marine snow” acts as a carbon sink. #science #news www.lifescience.net/news/7083/un...lifescience.netUnderstanding how “marine snow” acts as a carbon sinkA new study finds hitchhiking bacteria dissolve essential ballast in ubiquitous “snow” particles, which could counteract the ocean’s ability to sequester carbon. 021
Reposted by Rachel GregorJason Rasgon @vectorgen.bsky.social · 23/03/2026OK folk I need some advice. We have a microbiome pub that we're having trouble getting published (not even getting to the review stage-being bounced editorially as "not mechanistic") Large paper, 11 figures + supplement Where is a good venue these days to publish "descriptive" microbiome studies? 516
Reposted by Rachel GregorCenter for Chemical Currencies of a Microbial Planet (C-CoMP) @microbialplanet.bsky.social · 23/03/2026So excited to share our newest paper on #marine #exometabolites. A great effort led by Yuting Zhu, Hanna Anderson, and others in the C-CoMP team www.pnas.org/doi/10.1073/...pnas.orgCharacterization of phytoplankton-excreted metabolites mediating carbon flux through the surface ocean | PNASThe marine labile dissolved organic carbon (DOC) pool is a dynamic reservoir of thousands of molecules that cycles approximately one-quarter of Ear... 064
Reposted by Rachel GregorLeon-Samuel Icking @lsi.bsky.social · 23/03/2026🧬 Please repost 🧬 I was asked to organise a panel discussion for a SynBio Student Meetup in Hamburg in the middle of May and I'm still looking for panellist! If you know any researchers at the PhD/Postdoc who have expertise in metabolic/genome/multicellular organism engineering, please reach out! 028
Reposted by Rachel GregorColin Carlson @colincarlson.bsky.social · 23/03/2026‼️ New preprint: By solving a paradox in graph theory, we show that specialist symbionts constrain ecosystem structure, drive biodiversity, and face high extinction risk. With @jbyoder.org and @ctrlalttim.com: 🎉 Specialists drive biodiversity scaling in symbiotic relationships 88732
Reposted by Rachel GregorTami Lieberman @contaminatedsci.bsky.social · 18/03/2026If you're a senior PhD student or recent graduate interested in doing work at the intersection of AI and microbial genomics and/or microbiomes, please feel free to reach out to discuss the possibility of applying together for an MIT Novo Nordisk Fellowship engineering.mit.edu/novo-nordiskengineering.mit.eduNovo Nordisk FellowshipPotential areas of focus for postdoctoral fellows participating in the MIT-Novo Nordisk Postdoc Program include, but are not limited to, the following: Your complete application should include: In the... 12632
Reposted by Rachel GregorNature @nature.com · 18/03/2026A chemist, physicist, and biologist walk into a bar go.nature.com/3PfmrDSgo.nature.comKnock knock, no one’s there. Study finds scientists’ jokes mostly fall flatSurvey examines how often academics attempt jokes during conference talks — and how these attempts at comedy land. 108722
Reposted by Rachel GregorPaul Carini @uncultured.carinilab.com · 19/03/2026Is there a consensus for ANI differences associated with Order, Family, or Genus level divergence in bacteria? I'm looking at ~79% ANI between two genomes and am wondering where that falls. 383
Reposted by Rachel GregorAI x Bio Discovery @aixbiobot.bsky.social · 19/03/2026GAP-MS: Automated validation of gene predictions using integrated mass spectrometry evidence [new] Confirms protein accuracy, filters errors, identifies missing genes in complex plant genomes, resolving annotation ambiguities. 011
Reposted by Rachel GregorCameron Thrash @jcamthrash.bsky.social · 18/03/2026Characterization of phytoplankton-excreted metabolites mediating carbon flux through the surface ocean www.pnas.org/doi/abs/10.1... #jcampubs 🌊pnas.orgPNASProceedings 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... 0105
Rachel Gregor @rachelgregor.bsky.social · 18/03/2026Coming this August 3-5 to a hub near you (Switzerland, USA, Canada, Mexico, UK, Ukraine, or virtual only)! #Microbiome #MicroSky 052
Reposted by Rachel GregorMEEhubs @meehubs.bsky.social · 18/03/2026MEEHubs2026 registration and abstract submission is now online! 🚨🦠✨ Join us Aug 3 - 5, 2026 at one of the 7 hubs or online. We are incredibly excited about our lineup of speakers, and hope that you submit an abstract to contribute too! More information and registration links at: meehubs.orgmeehubs.orgHome 01917
Reposted by Rachel GregorTami Lieberman @contaminatedsci.bsky.social · 28/02/2026One of my favorite papers of past few years! 0175
Reposted by Rachel GregorRan Blekhman @blekhman.bsky.social · 02/03/2026AI has huge promise for genomics -- but it has consistently failed at microbiome-based prediction. My new post on why simple models keep winning, where deep learning actually earns its place, and where the field is headed blekhman.substack.com/p/ai-keeps-f...blekhman.substack.comAI Keeps Failing at Microbiome PredictionWhy simple models keep winning, where deep learning still shines, and where the field is headed 05532
Reposted by Rachel GregorCharlotte Houldcroft @virologyhouldcroft.bsky.social · 18/03/2026Have you ever wondered why children starting nursery/daycare pick up so many germs? I certainly did, and with a crack team of parent-scientists/clinicians, we set out to answer that question. Is childcare a germ factory or an immune bootcamp? journals.asm.org/doi/10.1128/...journals.asm.orgGerm factories or immune boot camps? Infection and immunity in childcare settings | Clinical Microbiology ReviewsSUMMARYChildcare outside the home is a common experience for many children in high-income countries. It is associated with an increase in the incidence of infectious diseases—not just for the child bu... 32917
Reposted by Rachel GregorDr. Sue Ishaq @drsueishaq.bsky.social · 16/03/2026Paper published on preserving microbiomes to secure health in degrading ecosystems! I'm delighted to announce a new publication on the importance of preserving microbiomes to secure health in degrading ecosystems! The paper outlines strategies for preserving critical microbes, functions, and…sueishaqlab.orgPaper published on preserving microbiomes to secure health in degrading ecosystems!I'm delighted to announce a new publication on the importance of preserving microbiomes to secure health in degrading ecosystems! The paper outlines strategies for preserving critical microbes, functions, and microbial communities using some specific examples, and ties these back to opportunities and challenges to making conservation efforts. This paper was a collaborative effort by several members of the Microbiome Stewardship… 084
Reposted by Rachel GregorBram van Dijk 🏳️🌈 @bramvandijk.bsky.social · 25/02/2026In case you missed it: our review titled "Spatial structure: shaping the ecology and evolution of microbial communities" is out! 🚨 Let me hit you with some highlights on why spatial structure matters. (and why you should care!) Sharing is appreciated 🙏 🧵👇 doi.org/10.1093/fems... 314788
Reposted by Rachel GregorSean Gibbons 🦠💩 @gibbological.bsky.social · 26/02/2026"Can you trust the results from gut microbiome tests? Maybe not." www.sciencenews.org/article/resu... I understand why the authors didn't disclose the different company IDs...but I'm very curious to know which is whichsciencenews.orgCan you trust the results from gut microbiome tests? Maybe notSeven firms reported inconsistent results on the same sample, some over multiple tests. These gut microbe discrepancies could have health consequences. 1115
Reposted by Rachel Gregornicoleeavalon.bsky.social @nicoleeavalon.bsky.social · 20/02/2026The MIBiG 5.0 Annotathon is coming soon, and registration is now open! 🧬 Does your research involve biosynthetic gene clusters? Do you love natural product biosynthesis? Do you have an interest in rare & exotic enzymes? We can use your help & expertise. Register here 👉 forms.gle/C1cWcLHtrjT2... 12621
Reposted by Rachel GregorNature Biotechnology @natbiotech.nature.com · 19/02/2026Harnessing microalgae for the biosynthesis of molecular crystals - @bengurionuniv.bsky.social go.nature.com/3MxVquigo.nature.comHarnessing microalgae for the biosynthesis of molecular crystals - Nature BiotechnologyCrystalline materials for optical applications are synthesized in living dinoflagellates. 153
Reposted by Rachel GregorDr Laura Sanchez @drlaurasanchez.bsky.social · 05/02/2026Hey all, excited to share this collab w/ @shaunmckinnie.bsky.social TL;DR we combined our expertise to develop and validate a MALDI-tims platform for screening the production of isomeric small molecules (~212 Da) directly from E coli colonies in high throughput www.cell.com/cell-reports...cell.comA high-throughput biocatalytic platform for screening isomeric kainoid natural productsShepherd and Ramachandra et al. present a fast, chromatography-free method for resolving isomeric products from engineered enzymes. This platform enables large-scale screening and identifies improved ... 1198
Reposted by Rachel GregorVardilab @vardilab.bsky.social · 05/02/2026🌊Paper announcement! 📣 Viral infections rewire the metabolic makeup of their host and thereby create distinct chemical signatures. Can we use metabolic biomarkers to diagnose infections of algal blooms in the ocean? Well, take a look at our new article led by Conny Kuhlisch in @pnas.org >>doi.orgMapping of the viral shunt across widespread coccolithophore blooms using metabolic biomarkers | PNASThe viral shunt is a fundamental ecosystem process which diverts the flux of organic carbon fixed through photosynthesis during algal bloom events ... 22815
Reposted by Rachel GregorCat Manning @catacalypto.bsky.social · 21/12/2025another example of AI as tracer dye, exposing an already existing problem (and, of course, significantly worsening it) 9677149
Reposted by Rachel GregorFrank Santoriello @fsantoriello.bsky.social · 21/12/2025The final form of my 2nd postdoc paper with the Bassler Lab! Turns out our favorite quorum-sensing phage isn’t a one-off, but rather a member of a globally dispersed family of phages that sense a universal autoinducer. #phagesky #microsky journals.asm.org/doi/10.1128/...journals.asm.orgA family of linear plasmid phages that detect a quorum-sensing autoinducer exists in multiple bacterial species | mBioThe discovery of quorum-sensing responsive linear plasmid phages has transformed understanding of phage-bacterial interactions by demonstrating inter-domain chemical communication. To date, however, e... 07628
Reposted by Rachel GregorRichard Lenski @relenski.bsky.social · 19/12/2025"The changing roles of Escherichia coli" -- a short essay by yours truly. rdcu.be/eVtXTrdcu.beThe changing roles of Escherichia coliNature Microbiology - Richard Lenski traces the legacy of Escherichia coli and how science is evolving to use this model organism in new ways. 116359
Reposted by Rachel GregorKresten Lindorff-Larsen @lindorfflarsen.bsky.social · 18/12/2025Enjoyed reading “AI for chemistry in 2025 is like AI for images in 2010” leashbio.substack.com/p/ai-for-che... 0204
Reposted by Rachel GregorÁkos T Kovács @evolvedbiofilm.bsky.social · 16/12/2025Phosphorus stress and spatial confinement lower the threshold for quorum-sensing activation of redox-active metabolite production in Pseudomonas synxantha bioRxiv from Dianne Newman www.biorxiv.org/content/10.1...biorxiv.orgPhosphorus stress and spatial confinement lower the threshold for quorum-sensing activation of redox-active metabolite production in Pseudomonas synxanthaBacteria often coordinate collective behaviors such as biofilm formation and secondary metabolite production through quorum sensing (QS), a regulatory system traditionally linked to high cell density.... 053
Reposted by Rachel GregorStem Cell Network @stemcellnetwork.ca · 17/12/2025📢 NEW exciting opportunity! Join Queen’s University as a tenure-track Assistant Professor in Cell Engineering and Biomanufacturing, with opportunities for interdisciplinary research across #ChemicalEngineering and #Biomedical and #MolecularSciences. 🔬 🔗 stemcellnetwork.ca/career-oppor... 035
Reposted by Rachel GregorDan Udwary @danudwary.secondarymetabolism.com · 15/12/2025DOE's Office of Science is making a big push into AI, and that includes our work at the @jgi.doe.gov . We want to hear your thoughts (+ and -) on AI-enabled biological data. Consider joining one of our interviews or focus groups by filling out this form! 🧪🧬🦠🖥️ #secmet jointgeno.me/PortalStorie...jointgeno.meTell Us Your JGI Portal StoriesThe JGI Portal teams (IMG, Mycocosm, Phycocosm, Phytozome, and SMC) would love to sit with you (over Zoom) to hear your stories relating to your usage of the portals, your unsupported use cases, and p... 1713
Reposted by Rachel GregorEryk Salvaggio @eryk.bsky.social · 14/12/2025It’s good to see papers start to address LLMs as structural plagiarism — provenance, more hidden than the original words or training data. www.nature.com/articles/s42...nature.comLLM use in scholarly writing poses a provenance problemNature Machine Intelligence - LLM use in scholarly writing poses a provenance problem 11436165
Reposted by Rachel GregorMitja M. Zdouc @mmzdouc.bsky.social · 11/12/2025Have you ever used a #bioinformatics #database and were frustrated by its lack of coverage? Did you ever think about starting your own resource? We just published a new strategy for community-driven #biocuration, based on our experiences with the #MIBiG database (1/8)! doi.org/10.1093/bib/...doi.orgStrategies for community-sourced biocuration in bioinformatics: a case study on MIBiG 4.0Abstract. Biocuration is essential to transform molecular sequence data into standardized, machine-readable resources. Such curated datasets enable compara 13916
Reposted by Rachel GregorJon Paczkowski🌹 @paczkowskilab.bsky.social · 09/12/2025What started out as a structure-function project for an undergraduate researcher morphed into something bigger w/ @popea.bsky.social leading the way. Check out how RhlR fine tunes its response to its autoinducer to avoid producing too much pyocyanin. www.biorxiv.org/content/10.6...biorxiv.orgRhlR quorum-sensing receptor ligand sensitivity regulates the differential expression of phenazine genes in Pseudomonas aeruginosaBacteria control individualistic and group behaviors using a form of cell-cell communication called quorum sensing. Quorum sensing relies on the production of chemical signals called autoinducers and ... 11110
Reposted by Rachel GregorMizrahi Lab @mizrahilab.bsky.social · 09/12/2025In our new paper in @natcomms.nature.com We discovered how Ruminococcus bromil organizes and regulates its enzyme complex to efficiently break down resistant starch, forming a key metabolic foundation for the human gut ecosystem. (1/12) 📄 www.nature.com/articles/s41... 1115
Reposted by Rachel GregorBejaLabTechnion @bejalab.bsky.social · 08/12/2025Our BEHIND THE STORY. A glimpse into the role of auxiliary metabolic genes in cyanophages during infection communities.springernature.com/posts/a-glim...communities.springernature.comA glimpse into the role of auxiliary metabolic genes in cyanophages during infection 0106
Reposted by Rachel GregorBob Lynn @boblynn.bsky.social · 30/10/2025Angelina Fanny Hesse: The Woman Who Brought Agar from the Kitchen to the Laboratory voxmeditantis.com/2025/10/30/a... #WomenInSTEM #STEM #Microbiology #Agarology #Bacteriologyvoxmeditantis.comAngelina Fanny Hesse: The Woman Who Brought Agar from the Kitchen to the LaboratoryAngelina Fanny Hesse reveals how childhood memories of Indonesian pudding solved bacteriology’s greatest problem in 1881. The unpaid laboratory technician whose kitchen knowledge enabled Koch… 0165
Reposted by Rachel GregorUri Alon @urialonlab.bsky.social · 03/12/2025We analyzed changes in physiology relative to menopause using two large scale studies that include millions of lab tests. Rather than align by age, we used statistical inference to align tests to final menstrual period. (1/2) arunamed.com/the-menopaus...arunamed.comThe Menopause Cliff: What a Million Women's Lab Tests RevealTLDR: A massive study of 300+ million lab tests from 1+ million women just proved what women have been saying for years: menopause isn't a gradual slope—it's a physiological cliff. Nearly e 24919
Reposted by Rachel GregorSara Mitri @saramitri.bsky.social · 03/12/2025Amazing dataset describing the metabolic profiles of 66 E. coli transporter knockouts by @sulheim.bsky.social with Peter Doubleday and @nzamboni.bsky.social. The tool, set up by @lambdapp.bsky.social and Eric Ulrich allows you to explore for yourself. Enjoy! Pre-print here: doi.org/10.1101/2025...doi.org 02717
Reposted by Rachel GregorSnorre Sulheim @sulheim.bsky.social · 03/12/2025Do you think transporters in E. coli contribute to metabolite release? No? Explore the effect of 66 different transporter knockout mutations on the exometabolome dynamics of ~300 metabolites yourself: keio.unil.ch Teaser: Increased proline in ΔputP #microsky #MEvoSky 14015