Detmer Sipkema
@detmersipkema.bsky.social
marine microbiologist, evolution of symbiosis, sponges! aquaculture, marine natural products
Associate Professor at the Laboratory of Microbiology
Find me in Wageningen, Groningen or below sealevel
https://microbialifeaquatic.wordpress.com/
Associate Professor at the Laboratory of Microbiology
Find me in Wageningen, Groningen or below sealevel
https://microbialifeaquatic.wordpress.com/
Reposted by Detmer Sipkema
Experience Wageningen University & Research from anywhere in the world! Join our Virtual Open Day to watch programme presentations, chat live with students and advisers, and get an inside look at real student life in Wageningen.
📅 4 December 2025
🌍 15:00 - 21:00 CET
💻online
📅 4 December 2025
🌍 15:00 - 21:00 CET
💻online
November 26, 2025 at 8:13 PM
Experience Wageningen University & Research from anywhere in the world! Join our Virtual Open Day to watch programme presentations, chat live with students and advisers, and get an inside look at real student life in Wageningen.
📅 4 December 2025
🌍 15:00 - 21:00 CET
💻online
📅 4 December 2025
🌍 15:00 - 21:00 CET
💻online
Dialoog met bezorgde trollen op X
Door te vertrekken van X zou @nieuws.nos.nl 'een grote groep mensen verlaten', juist nu 'de dialoog met bezorgde burgers op X cruciaal is.'
HAHAHAHAHAHAHAHAHA! 'dialoog met bezorgde burgers' HAHAHAHAHAHAHAHAHA!
HAHAHAHAHAHAHAHAHA! 'dialoog met bezorgde burgers' HAHAHAHAHAHAHAHAHA!
November 26, 2025 at 6:08 PM
Dialoog met bezorgde trollen op X
Tjongejongejonge, ja in welke tijd leven we zeg?
Het is gewoon heel erg seksistisch de mannelijke bevolking doet het echte werk en de vrouwen zijn de welvaart maar aan het afromen en hebben gecreëerde flutbaantjes.
“Symbool-analist beroepen”
Wat is dat in hemelsnaam?
En wie vertelt Sid Lukassen dat publiek-private samenwerkingen de basis zijn van onze welvaart? Alsof de overheid enkel het geld “afpakt” en herverdeelt.
Wat is dat in hemelsnaam?
En wie vertelt Sid Lukassen dat publiek-private samenwerkingen de basis zijn van onze welvaart? Alsof de overheid enkel het geld “afpakt” en herverdeelt.
November 26, 2025 at 6:06 PM
Tjongejongejonge, ja in welke tijd leven we zeg?
Reposted by Detmer Sipkema
November 26, 2025 at 8:33 AM
Reposted by Detmer Sipkema
Interesting study from Turon et al. showing for the first time the role of #microsymbionts in #sponge #reproduction! And the sponge ground species 'Geodia macandrewii' is included in the sampling 🙂
Do microbes contribute to #sponge sexual reproduction❤️ ? A team from SponBIODIV finds significant microbial composition changes in two species between reproductive and non-reproductive sponges! Spoiler: #Archaea are important!
@mncn-csic.bsky.social @biodiversa.eu
journals.asm.org/doi/full/10....
@mncn-csic.bsky.social @biodiversa.eu
journals.asm.org/doi/full/10....
November 26, 2025 at 7:46 AM
Interesting study from Turon et al. showing for the first time the role of #microsymbionts in #sponge #reproduction! And the sponge ground species 'Geodia macandrewii' is included in the sampling 🙂
Reposted by Detmer Sipkema
Editor-In-Chief for FEMS Microbiology Reviews of @femsjournals.bsky.social @femsmicro.org
#SocietyJournal #Microbiology #EditorInChief
fems-microbiology.org/opportunitie...
#SocietyJournal #Microbiology #EditorInChief
fems-microbiology.org/opportunitie...
November 24, 2025 at 7:51 AM
Editor-In-Chief for FEMS Microbiology Reviews of @femsjournals.bsky.social @femsmicro.org
#SocietyJournal #Microbiology #EditorInChief
fems-microbiology.org/opportunitie...
#SocietyJournal #Microbiology #EditorInChief
fems-microbiology.org/opportunitie...
Reposted by Detmer Sipkema
The first batch of #sponge #genome notes are now out! 🥳 from the 'Wellcome Open Research' publishing platform: Aplysina aerophoba, Crambe crambe, Chondrosia reniformis, Aphrocallistes beatrix, Eunapius fragilis, Spongilla lacustris...
The genome of Aplysina aerophoba, the "golden sponge" is done. This sponge has a unique chemistry that makes it turn blue upon contact with air.
wellcomeopenresearch.org/articles/10-...
www.moore.org/initiative-s...
wellcomeopenresearch.org/articles/10-...
www.moore.org/initiative-s...
May 30, 2025 at 11:55 AM
Reposted by Detmer Sipkema
Nu in je podcast-app!
De eerste twee afleveringen van onze nieuwe @bureaubuitenland.bsky.social podcast: “Dichter aan het Front”.
pod.link/1670654446
Over hoe je woorden geeft aan de oorlog, en hoe je mens blijft aan het front.
De eerste twee afleveringen van onze nieuwe @bureaubuitenland.bsky.social podcast: “Dichter aan het Front”.
pod.link/1670654446
Over hoe je woorden geeft aan de oorlog, en hoe je mens blijft aan het front.
November 20, 2025 at 5:17 PM
Nu in je podcast-app!
De eerste twee afleveringen van onze nieuwe @bureaubuitenland.bsky.social podcast: “Dichter aan het Front”.
pod.link/1670654446
Over hoe je woorden geeft aan de oorlog, en hoe je mens blijft aan het front.
De eerste twee afleveringen van onze nieuwe @bureaubuitenland.bsky.social podcast: “Dichter aan het Front”.
pod.link/1670654446
Over hoe je woorden geeft aan de oorlog, en hoe je mens blijft aan het front.
Reposted by Detmer Sipkema
gggenomes: A Grammar of Graphics for Comparative Genomics thackl.github.io/gggenomes/ #Rstats
A Grammar of Graphics for Comparative Genomics
An extension of ggplot2 for creating complex genomic maps. It builds on the power of ggplot2 and tidyverse adding new ggplot2-style geoms & positions and dplyr-style verbs to manipulate the…
thackl.github.io
November 18, 2025 at 7:02 PM
gggenomes: A Grammar of Graphics for Comparative Genomics thackl.github.io/gggenomes/ #Rstats
Reposted by Detmer Sipkema
“Papermills Are Not the Problem — The System Is”
November 17, 2025 at 8:03 AM
“Papermills Are Not the Problem — The System Is”
Reposted by Detmer Sipkema
"A new paradigm for antibiotic discovery. By identifying and testing intermediates in the pathways to diverse natural compounds, we may find potent new antibiotics with more resilience to resistance"
www.sciencedaily.com/releases/202...
www.sciencedaily.com/releases/202...
Scientists find hidden antibiotic 100x stronger against deadly superbugs
A team of scientists discovered a hidden antibiotic 100 times stronger than existing drugs against deadly superbugs like MRSA. The molecule had been overlooked for decades in a familiar bacterium. It ...
www.sciencedaily.com
November 16, 2025 at 9:38 PM
"A new paradigm for antibiotic discovery. By identifying and testing intermediates in the pathways to diverse natural compounds, we may find potent new antibiotics with more resilience to resistance"
www.sciencedaily.com/releases/202...
www.sciencedaily.com/releases/202...
Reposted by Detmer Sipkema
New paper out of the lab this week. Looking at the genomic diversity in isolates from outbreaks of Lactococcosis, and potential virulence mechanisms of the emerging causative pathogen L. pertauri.
doi.org/10.1002/mbo3...
doi.org/10.1002/mbo3...
Comparative Genomics of Lactococcus spp. From Global Aquaculture Outbreaks Reveals Virulence Determinants, Antibiotic Resistance, and Phage Defence Mechanisms
Lactococcus petauri predominated in isolates from outbreaks of lactococcosis, suggesting a shift in disease aetiology. Genomic analysis revealed diverse virulence factors, prophage and resistance gen...
doi.org
November 15, 2025 at 11:07 AM
New paper out of the lab this week. Looking at the genomic diversity in isolates from outbreaks of Lactococcosis, and potential virulence mechanisms of the emerging causative pathogen L. pertauri.
doi.org/10.1002/mbo3...
doi.org/10.1002/mbo3...
sponges vs ctenophores 3-2
I really appreciated this popular science article covering our recent manuscript — big shout-out to @jakecurrie.bsky.social, thank you so much for taking the time to share your writing!
nautil.us/fierce-debat... bsky.app/profile/jlst...
nautil.us/fierce-debat... bsky.app/profile/jlst...
November 15, 2025 at 5:21 PM
sponges vs ctenophores 3-2
Reposted by Detmer Sipkema
Chemical richness and diversity of uncultivated ‘Entotheonella’ symbionts in marine sponges
@natchembio.nature.com by Dell et al from Jörn Piel, Haruko Takeyama, Toshiyuki Wakimoto
with @detmersipkema.bsky.social #MARBLES
www.nature.com/articles/s41...
@natchembio.nature.com by Dell et al from Jörn Piel, Haruko Takeyama, Toshiyuki Wakimoto
with @detmersipkema.bsky.social #MARBLES
www.nature.com/articles/s41...
Chemical richness and diversity of uncultivated ‘Entotheonella’ symbionts in marine sponges - Nature Chemical Biology
Marine sponges host bacteria that produce diverse bioactive compounds. Here, the authors conduct a large-scale metagenomic, single-bacterial and biochemical study to reveal the untapped biosynthetic p...
www.nature.com
November 15, 2025 at 12:28 PM
Chemical richness and diversity of uncultivated ‘Entotheonella’ symbionts in marine sponges
@natchembio.nature.com by Dell et al from Jörn Piel, Haruko Takeyama, Toshiyuki Wakimoto
with @detmersipkema.bsky.social #MARBLES
www.nature.com/articles/s41...
@natchembio.nature.com by Dell et al from Jörn Piel, Haruko Takeyama, Toshiyuki Wakimoto
with @detmersipkema.bsky.social #MARBLES
www.nature.com/articles/s41...
Reposted by Detmer Sipkema
🐳 What can whale spit tell us about its health? Turns out, quite a bit!
📲Learn more: go.whoi.edu/breath
📲Learn more: go.whoi.edu/breath
November 14, 2025 at 5:01 PM
🐳 What can whale spit tell us about its health? Turns out, quite a bit!
📲Learn more: go.whoi.edu/breath
📲Learn more: go.whoi.edu/breath
Our contribution to this paper from the Piel group is that we discovered a sister genus to Enthotheonella: Proxinella, also biosynthetically rich
Chemical richness and diversity of uncultivated ‘Entotheonella’ symbionts in marine sponges www.nature.com/articles/s41... #jcampubs
Chemical richness and diversity of uncultivated ‘Entotheonella’ symbionts in marine sponges - Nature Chemical Biology
Marine sponges host bacteria that produce diverse bioactive compounds. Here, the authors conduct a large-scale metagenomic, single-bacterial and biochemical study to reveal the untapped biosynthetic p...
www.nature.com
November 13, 2025 at 7:56 PM
Our contribution to this paper from the Piel group is that we discovered a sister genus to Enthotheonella: Proxinella, also biosynthetically rich
Reposted by Detmer Sipkema
I just got an email from a former mentee telling me that one dinner conversation changed how he writes papers♥️
I told him: “just write the paper, get it out—the next one will be better, and the next even better.”
Perfectionism is a trap (and a way to procrastinate...:))
I told him: “just write the paper, get it out—the next one will be better, and the next even better.”
Perfectionism is a trap (and a way to procrastinate...:))
November 13, 2025 at 7:27 PM
I just got an email from a former mentee telling me that one dinner conversation changed how he writes papers♥️
I told him: “just write the paper, get it out—the next one will be better, and the next even better.”
Perfectionism is a trap (and a way to procrastinate...:))
I told him: “just write the paper, get it out—the next one will be better, and the next even better.”
Perfectionism is a trap (and a way to procrastinate...:))
Reposted by Detmer Sipkema
This year's #BacDive workshop will take place on 24th November 2025, 3 - 5 PM CET online!
We are especially looking forward to the opportunity to answer your questions, and hear your feedback and ideas. 🦠🧬.
Write to [email protected] to receive the Zoom login details 🖥️.
We are especially looking forward to the opportunity to answer your questions, and hear your feedback and ideas. 🦠🧬.
Write to [email protected] to receive the Zoom login details 🖥️.
November 13, 2025 at 9:35 AM
This year's #BacDive workshop will take place on 24th November 2025, 3 - 5 PM CET online!
We are especially looking forward to the opportunity to answer your questions, and hear your feedback and ideas. 🦠🧬.
Write to [email protected] to receive the Zoom login details 🖥️.
We are especially looking forward to the opportunity to answer your questions, and hear your feedback and ideas. 🦠🧬.
Write to [email protected] to receive the Zoom login details 🖥️.
Reposted by Detmer Sipkema
What is the most profitable industry in the world, this side of the law? Not oil, not IT, not pharma.
It's *scientific publishing*.
We call this the Drain of Scientific Publishing.
Paper: arxiv.org/abs/2511.04820
Background: doi.org/10.1162/qss_...
Thread @markhanson.fediscience.org.ap.brid.gy 👇
It's *scientific publishing*.
We call this the Drain of Scientific Publishing.
Paper: arxiv.org/abs/2511.04820
Background: doi.org/10.1162/qss_...
Thread @markhanson.fediscience.org.ap.brid.gy 👇
November 12, 2025 at 10:31 AM
What is the most profitable industry in the world, this side of the law? Not oil, not IT, not pharma.
It's *scientific publishing*.
We call this the Drain of Scientific Publishing.
Paper: arxiv.org/abs/2511.04820
Background: doi.org/10.1162/qss_...
Thread @markhanson.fediscience.org.ap.brid.gy 👇
It's *scientific publishing*.
We call this the Drain of Scientific Publishing.
Paper: arxiv.org/abs/2511.04820
Background: doi.org/10.1162/qss_...
Thread @markhanson.fediscience.org.ap.brid.gy 👇
Reposted by Detmer Sipkema
Schrijver Jaap Scholten, oprichter van de ngo Protect Ukraine:
“Dit is een gecrowdfunde oorlog. Basale traumapacks en helmen leveren we sneller dan het bureaucratische Oekraïense leger.”
Via @phaedrajanine.bsky.social
“Dit is een gecrowdfunde oorlog. Basale traumapacks en helmen leveren we sneller dan het bureaucratische Oekraïense leger.”
Via @phaedrajanine.bsky.social
Schrijver Jaap Scholten strijdt als een soldaat van Oranje voor Oekraïne: ‘Ja, ik voer oorlog’
Schrijver Jaap Scholten heeft een missie: Oekraïne helpen. En hij gaat daarvoor heel ver. ‘Alles wat ik voor Oekraïne doe, voelt zoveel zinniger dan al het andere.’
www.trouw.nl
November 12, 2025 at 7:52 AM
Schrijver Jaap Scholten, oprichter van de ngo Protect Ukraine:
“Dit is een gecrowdfunde oorlog. Basale traumapacks en helmen leveren we sneller dan het bureaucratische Oekraïense leger.”
Via @phaedrajanine.bsky.social
“Dit is een gecrowdfunde oorlog. Basale traumapacks en helmen leveren we sneller dan het bureaucratische Oekraïense leger.”
Via @phaedrajanine.bsky.social
Reposted by Detmer Sipkema
Opportunity!
Anybody knows of young marine ecologists (within 7 years from earned PhD) that would like to come to Gothenburg, Sweden, for a nationally funded Assistant Professorship? It is highly competitive but well funded. (1) of (3)
Anybody knows of young marine ecologists (within 7 years from earned PhD) that would like to come to Gothenburg, Sweden, for a nationally funded Assistant Professorship? It is highly competitive but well funded. (1) of (3)
November 10, 2025 at 9:32 AM
Opportunity!
Anybody knows of young marine ecologists (within 7 years from earned PhD) that would like to come to Gothenburg, Sweden, for a nationally funded Assistant Professorship? It is highly competitive but well funded. (1) of (3)
Anybody knows of young marine ecologists (within 7 years from earned PhD) that would like to come to Gothenburg, Sweden, for a nationally funded Assistant Professorship? It is highly competitive but well funded. (1) of (3)
Hey @vuelingcare.bsky.social, where is the care?
I've booked a flight with you, you accept it. Then change it to a much worse flight option, but allow to be reimbursed, and then I receive a 'no-reply email' stating that you will reimburse me 0.00 euro within 30 days....
and no way to reach anyone...
I've booked a flight with you, you accept it. Then change it to a much worse flight option, but allow to be reimbursed, and then I receive a 'no-reply email' stating that you will reimburse me 0.00 euro within 30 days....
and no way to reach anyone...
November 10, 2025 at 10:34 AM
Hey @vuelingcare.bsky.social, where is the care?
I've booked a flight with you, you accept it. Then change it to a much worse flight option, but allow to be reimbursed, and then I receive a 'no-reply email' stating that you will reimburse me 0.00 euro within 30 days....
and no way to reach anyone...
I've booked a flight with you, you accept it. Then change it to a much worse flight option, but allow to be reimbursed, and then I receive a 'no-reply email' stating that you will reimburse me 0.00 euro within 30 days....
and no way to reach anyone...
Het is een beetje als klimaatverandering; elke keer weer nieuwe records en we lijken het geen halt toe te kunnen roepen
Rusland voert een van zijn grootste aanvallen tot nu toe uit op energiesector van Oekraïne
Rusland voert een van zijn grootste aanvallen tot nu toe uit op energiesector van Oekraïne
www.volkskrant.nl
November 9, 2025 at 7:13 PM
Het is een beetje als klimaatverandering; elke keer weer nieuwe records en we lijken het geen halt toe te kunnen roepen
Reposted by Detmer Sipkema
Interesting developments in graduation guidelines at University Twente with food for thought share.google/1C56tDX6L6L9...
Cum laude promoveren kan niet meer op de UT
Het predicaat ‘cum laude’ verdwijnt per 1 januari uit het promotiereglement van de UT. De onderscheiding zou niet berusten op objectieve maatstaven en nadelig uitpakken voor vrouwelijke promovendi.
share.google
November 6, 2025 at 3:10 AM
Interesting developments in graduation guidelines at University Twente with food for thought share.google/1C56tDX6L6L9...
Reposted by Detmer Sipkema
Interessante ontwikkeling. Schoolboeken zouden inderdaad geen winstmodel mogen zijn en het is goed om leraren meer regie te geven over inhoud. Wel vraag ik me af hoe de kwaliteit wordt gewaarborgd en we voorkomen dat er grote kwalitatieve verschillen ontstaan in het onderwijs.
nos.nl/l/2589247
nos.nl/l/2589247
Scholen gaan zelf boeken maken: 'Beter, goedkoper, en duurzamer'
Verschillende scholen gaan zelf hun schoolboeken maken met een nieuwe coöperatieve uitgeverij.
nos.nl
November 5, 2025 at 7:19 AM
Interessante ontwikkeling. Schoolboeken zouden inderdaad geen winstmodel mogen zijn en het is goed om leraren meer regie te geven over inhoud. Wel vraag ik me af hoe de kwaliteit wordt gewaarborgd en we voorkomen dat er grote kwalitatieve verschillen ontstaan in het onderwijs.
nos.nl/l/2589247
nos.nl/l/2589247