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@bacteriocins.bsky.social

@bacteriocins.bsky.social
1K followers 801 following 72 posts

Molecular microbiology, live bacterial biosensors, recombinant production of bacteriocins and other fancy peptides with corynebacteria @ Ulm University

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@bacteriocins.bsky.social @bacteriocins.bsky.social · 24/08/2026
AI meets AMP. Thinking about s strategy to produce it recombinantly. Bit need to overcome activity on the producer.
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@bacteriocins.bsky.social @bacteriocins.bsky.social · 12/08/2026
Landmarks in (Micro)Biology: 1943 - Luria&Delbrück 1952 - Hershey&Chase 1967 - Goulian et al. 1977 - Sanger et al. 2003 - Smith et al. Here's the latest bacteriophage landslide study. Thinking of it now, it probaly was to be expected. Still knocks me off my feet. www.science.org/doi/10.1126/...
science.org
Generative design of bacteriophages with genome language models
Many important biological functions arise not from single genes but from complex interactions encoded by entire genomes. We report the first generative design of complete bacteriophage genomes using g...
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@bacteriocins.bsky.social @bacteriocins.bsky.social · 07/06/2026
Plating marathon on a Sunday to help my PhD student Ömer assessing the culturable AMR reservoir in soil under different fertilization regimes. 4 antibiotics, 2 concs., 6 dilutions, 2 media. With replicates: 650 plates. And that‘s just 3 of 72 samples. No problem with a bit of good old skate punk 🤘
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@bacteriocins.bsky.social @bacteriocins.bsky.social · 01/06/2026
And then visited Naturkäserei Maucher, where bacteriocin producers ensure food safety. Finished the day with a nice BBQ. www.naturkaeserei-maucher.de
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@bacteriocins.bsky.social @bacteriocins.bsky.social · 01/06/2026
Thursday was a day off for the group. Connecting the topics of the group, we first went for a few km through Allgäu grasslands of high and low land-use intensity (subject of the TrophicHealth project for isolation of novel bacteriocins). www.uni-ulm.de/nawi/trophic...
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@bacteriocins.bsky.social @bacteriocins.bsky.social · 04/05/2026
Two brand new BioStat bioreactors set up in on our fermentation lab and for the first in full effect. The bacteriocins group at UUlm is now ready to produce antimicrobial and antiviral peptides with all barrels firing from shake flasks to 10l vessels.
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Ákos T Kovács @evolvedbiofilm.bsky.social · 18/04/2026
Comprehensive and Comparative Transcriptional Profiling of the Cell Wall Stress Response in Bacillus subtilis #MolMicrobiol from Thorsten Mascher @spp2389.bsky.social, Rut Carballido-López and colleagues onlinelibrary.wiley.com/doi/10.1111/...
onlinelibrary.wiley.com
Comprehensive and Comparative Transcriptional Profiling of the Cell Wall Stress Response in Bacillus subtilis
Transcriptional profiling of the primary cell envelope stress response (CESR) of Bacillus subtilis exposed to a range of cell wall-targeting antimicrobials, combining RNAseq and high-resolution tilin...
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FEMS Journals @femsjournals.bsky.social · 18/04/2026
Fluorescent labeling extended to 3 streptococcal species 🧫✨ @veeninglab.com & coll. benchmarked 5 proteins and developed multicolor cassettes enabling triple labeling—expanding tools for gene expression, cell dynamics & infection studies. 👉️ buff.ly/DFMXjE7
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@bacteriocins.bsky.social @bacteriocins.bsky.social · 16/04/2026
The Bacteriocins lab stocking up on tip boxes at the end of a long lab cleaning day. To make things a bit easier and tick the sustainability box, we‘re having a couple of Radler that were at half price in the cafeteria due to recently expired shelf life🤩
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@bacteriocins.bsky.social @bacteriocins.bsky.social · 09/02/2026
Just realized: @bacteriocins.bsky.social has 1001 followers😊. Thanks Bluesky 🙏. We will try to keep you updated on work by us and others on bacteriocins.
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@bacteriocins.bsky.social @bacteriocins.bsky.social · 09/02/2026
Already out a few days out but still worth saying: great work by Lisa Prigolovkin, PhD Student in the group of Marco Oldiges at Forschungszentrum Jülich, on accurate, automated quantification of lysostaphin: rdcu.be/e26kv Happy that my group, especially Christian Desiderato, were able to help a bit.
rdcu.be
Turbid but accurate: automating lysostaphin quantification including uncertainty quantification
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@bacteriocins.bsky.social @bacteriocins.bsky.social · 01/12/2025
Day out with the group. First stop at the Museum für Brot und Kunst to see its current exhibition „Winzige Giganten“ (tiny giants) which includes pieces created by our very own PhD student Karo introducing our work on the impact of fertilization on the soil microbiome (project IMPALA)
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@bacteriocins.bsky.social @bacteriocins.bsky.social · 26/11/2025
As announced a few days ago, Rostand's first paper was accepted in Environmental Microbiology Reports. The paper is now online. Here is the link: enviromicro-journals.onlinelibrary.wiley.com/doi/full/10.... Huge thanks to the Baden-Württemberg Foundation for funding.
enviromicro-journals.onlinelibrary.wiley.com
Impact of Fertilisation on the Bacterial Core Microbiome of Grassland Soils: Abundance in the Field and Growth In Vitro
Effects of different organic fertilisation regimes on the bacterial microbiome of grassland soil were analysed by 16S rRNA amplicon sequencing. Different fertilisation regimes led to distinct changes....
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@bacteriocins.bsky.social @bacteriocins.bsky.social · 17/11/2025
Also today: I realized that we are at 993 followers. C'mon bluesky, get us over the hump to make it 1000.
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@bacteriocins.bsky.social @bacteriocins.bsky.social · 17/11/2025
Also today, we received the proofs of his first paper. Will post the link as soon as the final version is available online
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@bacteriocins.bsky.social @bacteriocins.bsky.social · 17/11/2025
Excellent day. Our very own PhD student Rostand successfully defended his thesis on the impact of organic fertilization on the soil microbiome of grassland ecosystems. Congratulations Rostand, well done.
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@bacteriocins.bsky.social @bacteriocins.bsky.social · 21/09/2025
Keep on keepin‘ on
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@bacteriocins.bsky.social @bacteriocins.bsky.social · 17/09/2025
Finally out: the first paper of our #IMPALA project on the impact of organic fertilization on microbiomes in grassland ecosystems. Here we analyse 16S amplicons. Soon to come #bacteriocin gene clusters in metagenomes of the same samples academic.oup.com/ismecommun/a...
academic.oup.com
Validate User
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@bacteriocins.bsky.social @bacteriocins.bsky.social · 17/09/2025
Great meeting today at Bielefeld University to discuss progress and next steps in WP1 of our EU project #iCulture on production of antimicrobial peptides using biomass of marine macroalgae and the German microbe of the year C. glutamicum
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Cassie Bakshani @cassiebakshani.bsky.social · 18/07/2025
🚨 New preprint klaxon 🚨 We characterised the structure of a PNGaseA superfamily member from Bifidobacterium bifidum LMG13195 and highlight its preference for N-glycan structures attached to a peptide, rather than to a native or denatured protein 💫 @imibirmingham.bsky.social
biorxiv.org
PNGaseA-mediated N-glycan stripping from peptides by infant-derived Bifidobacterium bifidum
N-glycans are highly common sources of nutrition for human colonic-dwelling bacteria. These microbes have evolved a several methods to remove N-glycans from proteins; herein we describe the biochemica...
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@bacteriocins.bsky.social @bacteriocins.bsky.social · 14/07/2025
So true. And if you want to hear how we try to produce #bacteriocins and other antimicrobial/antiviral peptides using a biotech workhorse organism, come to my talk tomorrow at 11:30h in the Biotechniology for Health Session (Amber 1&2 hall) of #FEMS2025. Or to Poster 395.16P on Thursday.
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@bacteriocins.bsky.social @bacteriocins.bsky.social · 14/07/2025
Ready, set, go for the opening plenary session of #FEMS2025
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@bacteriocins.bsky.social @bacteriocins.bsky.social · 09/07/2025
Bacteriocins.bsky.social will be attending #FEMS2025. Found out yesterday that my abstract was selected for a talk and poster 😱. All Emails were moved to Spam for some reason 🤯. Will do my best to give a convincing presentation on recombinant production of #bacteriocins
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@bacteriocins.bsky.social @bacteriocins.bsky.social · 03/07/2025
Had to go through the Editorial Board pinpointing to the publication guidelines. Got the strain in the end.
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@bacteriocins.bsky.social @bacteriocins.bsky.social · 03/07/2025
Once had the same argument with aomw guys from the US. Main result of a paper in Nucleic Acids Research was an E. coli strain to make extracts for SLiCE cloning (similar to Golden Gate Cloning and Gibson Assembly). Strain was commercialized after publication.
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Lars Dietrich @laahrs.bsky.social · 25/06/2025
www.quantamagazine.org/how-a-biofil...
quantamagazine.org
How a Biofilm’s Strange Shape Emerges From Cellular Geometry | Quanta Magazine
Micro decisions can have macro consequences. A soft matter physicist reveals how interactions within simple cellular collectives can lead to emergent physical traits.
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@bacteriocins.bsky.social @bacteriocins.bsky.social · 10/06/2025
#FEMS2025 in Milano and @bacteriocins.bsky.social will be there. Gettin‘ jiggy with it.
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@bacteriocins.bsky.social @bacteriocins.bsky.social · 10/06/2025
Fantasic digital 3D model of The Ulmer Münster. Highest church tower in Germany and the world (as long as Sagrada Familia in Barcelona remains unfinished) sketchfab.com/3d-models/ul...
sketchfab.com
Ulmer Münster - Download Free 3D model by LAD BW (@ladbw)
Ulmer Münster Ulm (Stadt Ulm) Interaktive Karte aller Modelle Fotos: Martin Schaich 2020 (c) Landesamt für Denkmalpflege im Regierungspräsidium Stuttgart - Ulmer Münster - Download Free 3D model b...
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Animalcules @bacteriophile.bsky.social · 05/06/2025
www.nature.com/articles/s41...
nature.com
A broad-spectrum lasso peptide antibiotic targeting the bacterial ribosome - Nature
A new lasso peptide antibiotic exhibits broad-spectrum activity against Gram-negative and Gram-positive bacteria by interfering with bacterial protein synthesis, is unaffected by common resistanc...
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@bacteriocins.bsky.social @bacteriocins.bsky.social · 30/05/2025
The additional task this year: isolation of bacteria that are able to degrade and utilize polysaccharides of macroalgae for our EU-project #iCULTURE
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@bacteriocins.bsky.social @bacteriocins.bsky.social · 30/05/2025
During steps 1 and 2 we got some really nice isolates with potent antimicrobial activity. And whilst fishing in the dark we also picked up some rally bright, luminescent guys. Back to lab, we are now doing the sequencing part to identify the biosynthetic gene clusters.
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@bacteriocins.bsky.social @bacteriocins.bsky.social · 30/05/2025
Sailing, Sampling, Sequencing - Edition 2025
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@bacteriocins.bsky.social @bacteriocins.bsky.social · 14/05/2025
Question in the recent microbiology exam: What does the abbreviation „LUCA“ stand for? Answer of one of the students: „last useless common ancestor“ 🤷‍♂️
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@bacteriocins.bsky.social @bacteriocins.bsky.social · 04/04/2025
Once again my old love bifidobacteria prove to be important for proper development of the immune system and may help against reduced vaccine responses indiced by antibiotics www.nature.com/articles/s41...
nature.com
Bifidobacteria support optimal infant vaccine responses - Nature
Neonatal antibiotic use is shown to reduce immune response to infant vaccines, accompanied by reduced abundance of Bifidobacteria in the gut microbiota, with experiments in mice indicating that probio...
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@bacteriocins.bsky.social @bacteriocins.bsky.social · 28/03/2025
Great work be the @delafuentelab.bsky.social using Andersonin-D1, an antimicrobial peptide of a frog, as basis to generate potent synthetic peptide antimicrobials by structure-guided design www.cell.com/trends/biote...
cell.com
Frog-derived synthetic peptides display anti-infective activity against Gram-negative pathogens
Synthetic peptides, inspired by the natural defenses of amphibians, demonstrate selective activity against Gram-negative pathogens while sparing the gut microbiota and Gram-positive strains. Rationall...
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@bacteriocins.bsky.social @bacteriocins.bsky.social · 27/03/2025
RIPP family of lasso peptides act by binding to the ribosome and inhibition of protein synthesis www.nature.com/articles/s41...
nature.com
A broad-spectrum lasso peptide antibiotic targeting the bacterial ribosome - Nature
A new lasso peptide antibiotic exhibits broad-spectrum activity against Gram-negative and Gram-positive bacteria by interfering with bacterial protein synthesis, is unaffected by common resistanc...
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@bacteriocins.bsky.social @bacteriocins.bsky.social · 11/02/2025
Just an example of the dedication of women in science: an agar art logo of our iculture-project.eu made by my PhD student Julia
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@bacteriocins.bsky.social @bacteriocins.bsky.social · 11/02/2025
Here’s to all the ladies in science out there and in my lab. You run the show. www.un.org/en/observanc...
un.org
International Day of Women and Girls in Science | United Nations
The purpose of the day is to achieve full and equal access to and participation in science for women and girls.
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@bacteriocins.bsky.social @bacteriocins.bsky.social · 07/02/2025
I really like reviewing for ASM journals. But since this is going on, I reply to all requests that I am not considering to review again until I ASM is clear about its position on this. Sad.
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@bacteriocins.bsky.social @bacteriocins.bsky.social · 05/02/2025
The system described in 1962 in Aequorea victoria by Osamo Shimomura to start the success of GFP as the most widely used reporter - now put together by synthetic biology to give a set of 20 colours. Amazing.
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@bacteriocins.bsky.social @bacteriocins.bsky.social · 28/01/2025
Things that make the live of a microbiologist easier!
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@bacteriocins.bsky.social @bacteriocins.bsky.social · 24/01/2025
The bacteriocins band will be there. We try to get a full gig with three abstracts. See you at at #FEMS2025
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Helmholtz-Zentrum für Infektionsforschung (HZI) @helmholtzhzi.bsky.social · 13/01/2025
#Antibiotika sollen aktiv gegen krankmachende Bakterien sein & dabei den Zellen des menschlichen Körpers nicht schaden. Ein Team des @helmholtzhips.bsky.social stellt nun Wirkstoffkandidaten vor, die den MEP-Weg angreifen, der nur bei Bakterien vorkommt. #AMR www.helmholtz-hzi.de/media-center...
helmholtz-hzi.de
Gezielter Eingriff in den Stoffwechsel von Bakterien
Antibiotika sollen möglichst toxisch für krankmachende Bakterien sein und gleichzeitig harmlos für die Zellen des menschlichen Körpers. Das HIPS hat nun Wirkstoffkandidaten entwickelt, denen genau das...
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Helmholtz Institute for One Health (HIOH) @helmholtz-hioh.bsky.social · 09/01/2025
Excited to join the Bluesky Community 🌍! We - the Helmholtz Institute for One Health - exploring links between human, animal & environmental health to better understand global health challenges like zoonotic diseases and AMR. Follow us for insights & discoveries 🔬 #OneHealth #ScienceCommunication
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Jonathan Parra @jonathanparra.bsky.social · 09/01/2025
Metabologenomics-Driven Discovery of Nocardimicins from a Psychrophilic Nocardia sp. Strain pubs.acs.org/doi/10.1021/...
pubs.acs.org
Metabologenomics-Driven Discovery of Nocardimicins from a Psychrophilic Nocardia sp. Strain
A combined strategy of 2D-NMR-metabolomics-driven substructure tracking with genome mining led to the targeted discovery of 10 nocobactin-type lipopeptides (1–10) from the Arctic-derived phychrophillic Nocardia sp. L-016, among which 1–5 are new compounds, named nocardimicins S–W. The phenoxazole moiety in 1–10, featuring unique NMR values and correlations, was used as a probe for tracking nocardimicin analogues. The structures of 1–5 were established based on extensive MS and NMR spectroscopic analyses. The biosynthesis of nocardimicins (1–10) in Nocardia sp. L-016 is proposed to be achieved by the noc biosynthetic gene cluster, which is composed of two sub-gene clusters (I and II) separated by a 228 kb region. Compounds 1–10 showed moderate inhibition against human cancer cell lines of HCT116 and HepG2 with IC50 values in the range of 3.5–10.2 μM. This work provides an effective application of paired-omics technologies in the discovery of new natural products.
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@bacteriocins.bsky.social @bacteriocins.bsky.social · 09/01/2025
Our favorite biotech workhorse C. glutamicum has been named microbe of the year by the VAAM🎉. But it is not amongst the 50 most studied bacteria in literature 🥺. Still a lot of work to be done. www.biorxiv.org/content/10.1...
biorxiv.org
Ten species comprise half of the bacteriology literature, leaving most species unstudied
Microbiology research has historically focused on a few species of model organisms. Our bibliographic analysis finds extreme bias in the distribution of bacteriology research across species, with half...
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Microbiology Society @microbiologysociety.org · 08/01/2025
It’s official: The Microbiology Society is on Bluesky!
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@bacteriocins.bsky.social @bacteriocins.bsky.social · 03/01/2025
Interesting study by the Kovaćs group showing that production of surfactin, a non-ribosomal lipopeptide supresses production of the bacteriocin subtilosin A by both autocrine and paracrine mechanisms. Looks like counterregulation of two antimicrobial peptides
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@bacteriocins.bsky.social @bacteriocins.bsky.social · 03/01/2025
Great work by the Drescher group showing that various Gram pos and neg bacteria sense peptidoglycan as a danger signal and protect themselves by producing ECM and formation of biofilms. The involves c-di-GMP signalling. But what is the receptor? A bacterial TLR?
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Helmholtz-Zentrum für Infektionsforschung (HZI) @helmholtzhzi.bsky.social · 28/12/2024
Wenn Mikrobiolog:innen die Weihnachtsbeleuchtung aussuchen dürfen... 😉🦠 In Ljubljana werden Wissenschaft und Kunst auf kreative Weise zusammengebracht. Welche wissenschaftlich inspirierte Weihnachtsbeleuchtung würdet ihr gerne in eurer Stadt sehen?
Eine weihnachtlich geschmückte Straße mit einer Beleuchtung in Form eines Bakteriums.
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