Elke Dittmann
banner
dittmannelke.bsky.social
Elke Dittmann
@dittmannelke.bsky.social

Professor of Microbiology at University of Potsdam, Cyanobacteria, Natural Products, Toxic Blooms and Microbial Interactions. Views are my own.

Environmental science 32%
Biology 30%

Reposted by Elke Dittmann

Please RT:
We have an opening for a junior group leader position in „Phage Biology & Biotechnology“.
www.fz-juelich.de/de/karriere/...

Interested candidates are encouraged to contact me via email for further details.

@spp2330.bsky.social; @mibinet.bsky.social
Junior Group Leader - Phage Biology & Biotechnology
As a leading research institution for microbial biotechnology the Institute of Bio- and Geosciences - Biotechnology (IBG-1, https://www.fz-juelich.de/de/ibg/ibg-1 ) at the Forschungszentrum Jülich foc...
www.fz-juelich.de

Reposted by Elke Dittmann

Join us at the VAAM Annual Conference🌟 22.-25.3.2026 in Berlin 👥!

✏️Registration is now open - benefit from early bird fees🏃‍♀️!
📝 Submit your abstract &
🎓 Apply for student travel grants until
🗓️ 7 November 2025.

All details & more info 👉https://t1p.de/zazfv

Reposted by Elke Dittmann

Happy to join BlueSky with new work on improving heterologous P450s in Synechocystis. Efficient thylakoid targeting makes a big difference: higher protein amounts and up to 18x more product using a fusion protein engineering approach. #lightdrivencatalysis #teamgreen
pubs.acs.org/doi/10.1021/...
Thylakoid Targeting Improves Stability of a Cytochrome P450 in the Cyanobacterium Synechocystis sp. PCC 6803
Plants produce a large array of natural products of biotechnological interest. In many cases, these compounds are naturally produced at low titers and involve complex biosynthetic pathways, which often include cytochrome P450 enzymes. P450s are known to be difficult to express in traditional heterotrophic chassis. However, cyanobacteria have shown promise as a sustainable alternative for the heterologous expression of P450s and light-driven product biosynthesis. In this study, we explore strategies for improving plant P450 stability and membrane insertion in cyanobacteria. The widely used model cyanobacterium Synechocystis sp. PCC 6803 was chosen as the host, and the well-studied P450 CYP79A1 from the dhurrin pathway of Sorghum bicolor was chosen as the model enzyme. Combinations of the P450 fused with individual elements (e.g., signal peptide, transmembrane domain) or the full length cyanobacterial, thylakoid-localized, protein PetC1 were designed. All generated CYP79A1 variants led to oxime production. Our data show that strains producing CYP79A1 variants with elements of PetC1 improved thylakoid targeting. In addition, chlorophyll-normalized oxime levels increased, on average, up to 18 times compared to the unmodified CYP79A1. These findings offer promising strategies to improve heterologous P450 expression in cyanobacteria and can ultimately contribute to advancing light-driven biocatalysis in cyanobacterial chassis.
pubs.acs.org

Reposted by Elke Dittmann

#Suessmuth_Lab #Synpepbio
We are delighted and grateful to see our recent work highlighted on the #American_Peptide_Society website.
americanpeptidesociety.org/aps-news/pot...
Potent Antifungal Lipopeptide
Potent Antifungal Lipopeptide
americanpeptidesociety.org

Nice work!

Reposted by Elke Dittmann

Reposted by Elke Dittmann

Woo-hoo! Our MetaboArt proposal won a prize in AI art at #Metabolomics2025. 🥰
Title: #Cyanobacteria Metabolomics
Big thanks to @emn-metsoc.bsky.social
#MetaboArt #Metabolomics2025 #MetSoc25

Reposted by Elke Dittmann

Interested in natural product producing microorganisms? 🦠 See you in Berlin... 😀

Reposted by Elke Dittmann

Our group photo ❤️. Big thanks to all participants for their contributions.

Reposted by Elke Dittmann

Soil-dwelling Actinomyces bacteria have been found to synthesize hypermethylated ribosomal peptides, which serve as surface-active agents and promote the growth of aerial, reproductive structures

www.nature.com/articles/s41...
Peptide surfactants with post-translational C-methylations that promote bacterial development - Nature Chemical Biology
Soil-dwelling Actinomyces bacteria have been found to employ an iterative B12-dependent radical S-adenosylmethionine metalloenzyme to synthesize hypermethylated ribosomal peptides. These amphiphilic p...
www.nature.com

Reposted by Elke Dittmann

If you have a background in #photosynthesis, N₂-fixing cyanobacteria, or photosynthetic biotechnologies, consider applying for a postdoctoral position in @photomicrobeslab.bsky.social group @utu.fi, Finland. tinyurl.com/4b4nvyn6
Postdoctoral researchers (3-4 positions) in a variety of fields related to research of sustainable materials in the fields of energy, health and manufacturing
Turku region with its 320,000 people is a major urban area and a leading hub for technological development and economic growth in Finland. This former capital, located in the southwestern Finland, has...
ats.talentadore.com

Reposted by Elke Dittmann

Mixing and Matching of Hybrid Megasynthases is a Hub for the Evolution of Metabolic Diversity in Cyanobacteria onlinelibrary.wiley.com/doi/10.1002/...
Mixing and Matching of Hybrid Megasynthases is a Hub for the Evolution of Metabolic Diversity in Cyanobacteria
Modular megasynthases, such as polyketide synthases (PKSs) and non-ribosomal peptide synthetases (NRPSs), are molecular assembly lines that biosynthesize many pharmaceutically and ecologically import....
onlinelibrary.wiley.com

Reposted by Elke Dittmann

The latest discovery from the lab and great colleagues at McMaster and U Illinois, Chicago. Lariocidin, a new lasso peptide antibiotic that inhibits the ribosome. rdcu.be/efdha
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...
rdcu.be

Reposted by Elke Dittmann

📢We are hiring :
Are you skilled in microfluidics and fluorescence microscopy in biological contexts? We're seeking a postdoctoral researcher to delve into the spatio-temporal dynamics of carboxysomes . Join us in advancing the frontiers of microbial biology through innovative research!

The symbiotic Nostoc strain PCC 73102 gives up its autonomy under inorganic carbon limitation. Please find our latest study here: rdcu.be/ecRjj
Competition and interdependence define interactions of Nostoc sp. and Agrobacterium sp. under inorganic carbon limitation
npj Biofilms and Microbiomes - Competition and interdependence define interactions of Nostoc sp. and Agrobacterium sp. under inorganic carbon limitation
rdcu.be

Nice work!
Happy to join BlueSky with new work on improving heterologous P450s in Synechocystis. Efficient thylakoid targeting makes a big difference: higher protein amounts and up to 18x more product using a fusion protein engineering approach. #lightdrivencatalysis #teamgreen
pubs.acs.org/doi/10.1021/...
Thylakoid Targeting Improves Stability of a Cytochrome P450 in the Cyanobacterium Synechocystis sp. PCC 6803
Plants produce a large array of natural products of biotechnological interest. In many cases, these compounds are naturally produced at low titers and involve complex biosynthetic pathways, which often include cytochrome P450 enzymes. P450s are known to be difficult to express in traditional heterotrophic chassis. However, cyanobacteria have shown promise as a sustainable alternative for the heterologous expression of P450s and light-driven product biosynthesis. In this study, we explore strategies for improving plant P450 stability and membrane insertion in cyanobacteria. The widely used model cyanobacterium Synechocystis sp. PCC 6803 was chosen as the host, and the well-studied P450 CYP79A1 from the dhurrin pathway of Sorghum bicolor was chosen as the model enzyme. Combinations of the P450 fused with individual elements (e.g., signal peptide, transmembrane domain) or the full length cyanobacterial, thylakoid-localized, protein PetC1 were designed. All generated CYP79A1 variants led to oxime production. Our data show that strains producing CYP79A1 variants with elements of PetC1 improved thylakoid targeting. In addition, chlorophyll-normalized oxime levels increased, on average, up to 18 times compared to the unmodified CYP79A1. These findings offer promising strategies to improve heterologous P450 expression in cyanobacteria and can ultimately contribute to advancing light-driven biocatalysis in cyanobacterial chassis.
pubs.acs.org

Reposted by Elke Dittmann

A group leader position to work on cyanobacteria is open at Paris Saclay University, France. Further information in the attached image.

Reposted by Elke Dittmann

Wow, they found fungal hyphae inside the sheaths of nitrogen-fixing cyanobacteria! Usually with these types of symbiosis it's the other way around, with bacteria growing inside their host. This is supercool!🧪

www.science.org/doi/10.1126/...
A thallus-forming N-fixing fungus-cyanobacterium symbiosis from subtropical forests
Fungus lives within cyanobacterial sheaths in a thallus-forming symbiosis, named “phyllosymbia.”
www.science.org

Reposted by Elke Dittmann

~5y ago, Barbara, Serina, @marnixmedema.bsky.social & I teamed up to make a better NRPS A-domain specificity predictor. The Challis group & others joined along the way to add some very cool insights.

Very proud of this work. Check it out now on biorxiv!

doi.org/10.1101/2025...
PARAS: high-accuracy machine-learning of substrate specificities in nonribosomal peptide synthetases
Nonribosomal peptides are chemically and functionally diverse natural products with important applications in medicine and agriculture. Bacterial and fungal genomes contain thousands of nonribosomal p...
doi.org


We are pleased to share our new paper in which we have investigated the role of microcystin in a synthetic community of Microcystis and phycosphere bacteria.
#ISMEcomms
#cyanobacteria

academic.oup.com/ismecommun/a...
Microcystin shapes the Microcystis phycosphere through community filtering and by influencing cross-feeding interactions
Abstract. The cyanobacterium Microcystis causes harmful algal blooms (cyanoHABs) that pose a major threat to human health and ecosystem services, particula
academic.oup.com

Reposted by Elke Dittmann

Cytosine N4-methylation by the DNA methyltransferase M.Ssp6803II is required for the proper expression level of protoporphyrinogen IX oxidase, HemJ. All details in our new paper in DNA Research: academic.oup.com/dnaresearch/...
Epigenetic control of tetrapyrrole biosynthesis by m4C DNA methylation in a cyanobacterium
Abstract. Epigenetic DNA modifications are pivotal in eukaryotic gene expression, but their regulatory significance in bacteria is less understood. In Syne
academic.oup.com

Reposted by Elke Dittmann


Excited to share that our latest review on glycopeptide antibiotic biosynthesis has been published! This article is written with non-experts in mind, providing an accessible overview of the biosynthesis of these fascinating natural products. www.sciencedirect.com/science/arti...
#NatProd #SecMet
Animating insights into the biosynthesis of glycopeptide antibiotics
The realm of natural product (NP) research is constantly expanding, with diverse applications in both medicine and industry. In this interdisciplinary…
www.sciencedirect.com

Reposted by Elke Dittmann

#Microcystins can be modified with click chemistry to turn into potential anticancer drugs. By the @timoniedermeyer.bsky.social lab.
@niedermeyer-lab.bsky.social
doi.org/10.1021/acs....
The 13th International Conference on Toxic #Cyanobacteria, 4-8 May 2025, #Chania, #Crete, #Greece.
Abstract submissions 20 Dec 2024.
Follow us to get updates about #ICTC13.
www.ictc13.gr
#cyanotoxins #water #lake #teammassspec #ecology #waterquality #sequencing #multiomics #metabolomics #genomics
ICTC13 | 13th International Conference on Toxic Cyano Bacteria – 4-8 May 2025 | Chania, Crete, Greece
www.ictc13.gr

It would be great if you included me.

Reposted by Elke Dittmann

We have a DFG-funded Phd position for 3 years to study gene regulation in cyanophages. This is at Cyanolab in beautiful Freiburg/Germany, from Jan 2025, or later. More details here: cyanolab.de/index.php
Cyanolab
cyanolab.de

I have now decided to join the blue universe after all. I would like to network with everyone who is interested in #cyanobacteria, #natural_products, #biosynthesis and #microbial_interactions.🦠

Reposted by Elke Dittmann

It's Monday, November 18. We have left twitter and from now onwards, we start posting all kind of cyanobacteria-related content here in Bluesky: articles, preprints, research calls, fellowship calls, PhD and post-doc positions... If you have anything relevant for cyanobacteriologists, PM or tag us.