Nils Rädecker
@radecker.bsky.social
Microbial ecologist studying the evolution and breakdown of photosymbiosis. Imaging all things small 🔬and big 📸 alike. Just joined @HIFMB, Germany.
🪸 🔬 🧫
🪸 🔬 🧫
Reposted by Nils Rädecker
Beautiful work on characterizing the symbiosome of Aiptasia. Further evidence that “ongoing digestion” is central to a stable endosymbiosis.
We're excited to share with everyone a preprint of our manuscript that resolves the cellular origins of the symbiosome in cnidarian-algal symbiosis through proteomics of the symbiosome, RNAi, and CRISPR/Cas9 experiments. ⬇️
www.biorxiv.org/content/10.1...
Read on below!
1/12 🧵
www.biorxiv.org/content/10.1...
Read on below!
1/12 🧵
October 17, 2025 at 4:53 PM
Beautiful work on characterizing the symbiosome of Aiptasia. Further evidence that “ongoing digestion” is central to a stable endosymbiosis.
Bleaching: more than just a coral problem.
🌟 New book chapter alert!
🪸 Coral reefs are threatened by climate change, especially by mass ‘bleaching’ events. Bleaching is caused by the loss of photosymbionts under stress, resulting in a white – ‘bleached’ - phenotype.
link.springer.com/chapter/10.1...
#SymbioSky #MicroSky
🪸 Coral reefs are threatened by climate change, especially by mass ‘bleaching’ events. Bleaching is caused by the loss of photosymbionts under stress, resulting in a white – ‘bleached’ - phenotype.
link.springer.com/chapter/10.1...
#SymbioSky #MicroSky
Bleaching of Reef Organisms: Current Knowledge, Challenges, and Future Directions into the Anthropocene
Coral reefs worldwide are threatened by climate change and other anthropogenic stressors. A global factor contributing to coral reef decline is the increasing frequency, duration, and intensity of bleaching events leading to extensive mortality of keystone species,...
link.springer.com
October 8, 2025 at 3:42 PM
Bleaching: more than just a coral problem.
🪸🧪 We’re hiring! Join our ERC-funded group at the @hifmb.de in Oldenburg, Germany to explore the cellular origins of photosymbiosis:
𝟏 𝐏𝐨𝐬𝐭𝐝𝐨𝐜 + 𝟐 𝐏𝐡𝐃𝐬 𝐩𝐨𝐬𝐢𝐭𝐢𝐨𝐧𝐬.
Deadlines: Oct 29 & Nov 5. Links below.
Questions: nils.raedecker@hifmb.de
#Photosymbiosis #HIFMB #ERC #AcademicJobs
𝟏 𝐏𝐨𝐬𝐭𝐝𝐨𝐜 + 𝟐 𝐏𝐡𝐃𝐬 𝐩𝐨𝐬𝐢𝐭𝐢𝐨𝐧𝐬.
Deadlines: Oct 29 & Nov 5. Links below.
Questions: nils.raedecker@hifmb.de
#Photosymbiosis #HIFMB #ERC #AcademicJobs
October 6, 2025 at 12:27 PM
🪸🧪 We’re hiring! Join our ERC-funded group at the @hifmb.de in Oldenburg, Germany to explore the cellular origins of photosymbiosis:
𝟏 𝐏𝐨𝐬𝐭𝐝𝐨𝐜 + 𝟐 𝐏𝐡𝐃𝐬 𝐩𝐨𝐬𝐢𝐭𝐢𝐨𝐧𝐬.
Deadlines: Oct 29 & Nov 5. Links below.
Questions: nils.raedecker@hifmb.de
#Photosymbiosis #HIFMB #ERC #AcademicJobs
𝟏 𝐏𝐨𝐬𝐭𝐝𝐨𝐜 + 𝟐 𝐏𝐡𝐃𝐬 𝐩𝐨𝐬𝐢𝐭𝐢𝐨𝐧𝐬.
Deadlines: Oct 29 & Nov 5. Links below.
Questions: nils.raedecker@hifmb.de
#Photosymbiosis #HIFMB #ERC #AcademicJobs
I just returned from my holiday in Finland. While we were looking for bears, wolves and co, one of my personal favorites were these green-alga bearing freshwater sponges. Photosymbiosis is everywhere if you look close enough. Maybe it‘s time for some freshwater work at @hifmb.de?
August 19, 2025 at 6:06 AM
I just returned from my holiday in Finland. While we were looking for bears, wolves and co, one of my personal favorites were these green-alga bearing freshwater sponges. Photosymbiosis is everywhere if you look close enough. Maybe it‘s time for some freshwater work at @hifmb.de?
My first dive into Raman microscopy! 🔬 Our latest heat stress experiments on Aiptasia raised more questions than answers — until a few days of Raman spectroscopy with Dr. Peter Mojzeš at @charlesuni.cuni.cz helped connect the dots. Grateful for the collaboration and excited about what’s ahead!
July 30, 2025 at 3:43 AM
My first dive into Raman microscopy! 🔬 Our latest heat stress experiments on Aiptasia raised more questions than answers — until a few days of Raman spectroscopy with Dr. Peter Mojzeš at @charlesuni.cuni.cz helped connect the dots. Grateful for the collaboration and excited about what’s ahead!
Reposted by Nils Rädecker
Many amoebae incorporate diatoms in their shells, but Cylindrifflugia bacillariarum is the master. Third and fourth pics are close views of the glue that holds it all together. #ProtistsonSky #Amoebae #Peatlands
June 7, 2025 at 12:22 PM
Many amoebae incorporate diatoms in their shells, but Cylindrifflugia bacillariarum is the master. Third and fourth pics are close views of the glue that holds it all together. #ProtistsonSky #Amoebae #Peatlands
Looking forward to exploring how algal symbionts enable anemones to cope with the environmental conditions of the Mediterranean and the Anthropocene. Thanks @pure-ocean.bsky.social! A fun project lead by @cpogoreutz.bsky.social and together with Christine Ferrier-Pagès. tinyurl.com/pureocean
Discover our 6 winning projects! - Pure Ocean Fund
We are delighted to unveil the winning projects from the 2025 Pure Ocean Call for Projects.
www.pure-ocean.org
March 25, 2025 at 2:21 PM
Looking forward to exploring how algal symbionts enable anemones to cope with the environmental conditions of the Mediterranean and the Anthropocene. Thanks @pure-ocean.bsky.social! A fun project lead by @cpogoreutz.bsky.social and together with Christine Ferrier-Pagès. tinyurl.com/pureocean
Reposted by Nils Rädecker
Yesterday was the darkest day of my professional life so far. Many of NSF’s best and brightest people fired indiscriminately. The terms of their firing cruel. My colleagues matter, they are valued and they make a difference. I have no words. www.npr.org/2025/02/18/n...
National Science Foundation fires roughly 10% of its workforce
NSF fired 168 employees, leaving the agency less equipped to fund a wide range of scientific research.
www.npr.org
February 19, 2025 at 1:39 PM
Yesterday was the darkest day of my professional life so far. Many of NSF’s best and brightest people fired indiscriminately. The terms of their firing cruel. My colleagues matter, they are valued and they make a difference. I have no words. www.npr.org/2025/02/18/n...
A beautiful evening with friends, great discussions, and even some science! Excited to call this place my (work) home.
Yesterday, we celebrated the inauguration of our new building with companions and friends from science and politics. Thank you for motivating greetings and good wishes. We got a fantastic place for research, lab work, discourse and get-togethers.
More about the building:
hifmb.de/wp-content/u...
More about the building:
hifmb.de/wp-content/u...
February 6, 2025 at 2:53 PM
A beautiful evening with friends, great discussions, and even some science! Excited to call this place my (work) home.
Reposted by Nils Rädecker
Interested in protist parasites? Want to learn some fun bioinformatics? Think this apicomplexan looks cool? Great! Come and do some protist genomics at @uniofbath.bsky.social!
We're advertising a fully-funded PhD studentship open to UK & International applicants!
www.findaphd.com/phds/project...
We're advertising a fully-funded PhD studentship open to UK & International applicants!
www.findaphd.com/phds/project...
January 21, 2025 at 3:56 PM
Interested in protist parasites? Want to learn some fun bioinformatics? Think this apicomplexan looks cool? Great! Come and do some protist genomics at @uniofbath.bsky.social!
We're advertising a fully-funded PhD studentship open to UK & International applicants!
www.findaphd.com/phds/project...
We're advertising a fully-funded PhD studentship open to UK & International applicants!
www.findaphd.com/phds/project...
Reposted by Nils Rädecker
Stoked about this manuscript, many years in the making. We present an original resource of ~700 highly curated plastid MAGs of marine pelagic algae. Among these we found a novel deep branching group of plastid genomes; we informally call them leptophytes
www.biorxiv.org/content/10.1...
www.biorxiv.org/content/10.1...
January 19, 2025 at 8:32 AM
Stoked about this manuscript, many years in the making. We present an original resource of ~700 highly curated plastid MAGs of marine pelagic algae. Among these we found a novel deep branching group of plastid genomes; we informally call them leptophytes
www.biorxiv.org/content/10.1...
www.biorxiv.org/content/10.1...
Application deadline now extended to January 12th, some extra time to enjoy the winter break! ☃️🛷🎅
🪸🦠🧫🔬 Join us in beautiful Oldenburg! We’re hiring a technician to help cultivate and study marine photosymbioses as part of our new ERC-funded focus group at @hifmb.bsky.social.
Full-time, 4-year position in a new lab and a dynamic research environment!
Apply now!
👉 jobs.awi.de/Vacancies/18...
Full-time, 4-year position in a new lab and a dynamic research environment!
Apply now!
👉 jobs.awi.de/Vacancies/18...
Technician (m/d/f) in animal, microalgal, and cell cultivation
Layout AWI HIPP extern, englisch
jobs.awi.de
December 17, 2024 at 4:20 PM
Application deadline now extended to January 12th, some extra time to enjoy the winter break! ☃️🛷🎅
What a great finale. Receiving the Zeno Karl Schindler Research Prize marked the perfect end to an amazing time as a postdoc at EPFL🇨🇭. Big thanks to the Laboratory for Biological Geochemistry for being awesome friends and colleagues throughout these years!
December 17, 2024 at 11:25 AM
What a great finale. Receiving the Zeno Karl Schindler Research Prize marked the perfect end to an amazing time as a postdoc at EPFL🇨🇭. Big thanks to the Laboratory for Biological Geochemistry for being awesome friends and colleagues throughout these years!
Reposted by Nils Rädecker
We have a new paper out today in #ScienceAdvances from a #COVIDcollab with postdocs Kevin Archibald, Suzana Leles, and Ferdi Pfab. Our #MOCHA☕💻🦠 team developed a new model to describe how #mixotrophs optimize metabolism. www.science.org/doi/10.1126/... #protistsonsky
#NSFfunded (1/6)
#NSFfunded (1/6)
December 13, 2024 at 7:54 PM
We have a new paper out today in #ScienceAdvances from a #COVIDcollab with postdocs Kevin Archibald, Suzana Leles, and Ferdi Pfab. Our #MOCHA☕💻🦠 team developed a new model to describe how #mixotrophs optimize metabolism. www.science.org/doi/10.1126/... #protistsonsky
#NSFfunded (1/6)
#NSFfunded (1/6)
Endosymbiosis remodels transporter expression in Phaeocystis algae. Beautiful work from the @johandecelle.bsky.social lab. It would be amazing to know whether the patterns in diurnal transporter expression also change the directionality of transport. 🧫🦠
academic.oup.com/ismej/advanc...
academic.oup.com/ismej/advanc...
Transportome remodeling of a symbiotic microalga inside a planktonic host
Abstract. Metabolic exchange is one of the foundations of symbiotic associations between organisms and is a driving force in evolution. In the ocean, photo
academic.oup.com
December 14, 2024 at 4:25 AM
Endosymbiosis remodels transporter expression in Phaeocystis algae. Beautiful work from the @johandecelle.bsky.social lab. It would be amazing to know whether the patterns in diurnal transporter expression also change the directionality of transport. 🧫🦠
academic.oup.com/ismej/advanc...
academic.oup.com/ismej/advanc...
🪸🦠🧫🔬 Join us in beautiful Oldenburg! We’re hiring a technician to help cultivate and study marine photosymbioses as part of our new ERC-funded focus group at @hifmb.bsky.social.
Full-time, 4-year position in a new lab and a dynamic research environment!
Apply now!
👉 jobs.awi.de/Vacancies/18...
Full-time, 4-year position in a new lab and a dynamic research environment!
Apply now!
👉 jobs.awi.de/Vacancies/18...
Technician (m/d/f) in animal, microalgal, and cell cultivation
Layout AWI HIPP extern, englisch
jobs.awi.de
December 6, 2024 at 2:03 PM
🪸🦠🧫🔬 Join us in beautiful Oldenburg! We’re hiring a technician to help cultivate and study marine photosymbioses as part of our new ERC-funded focus group at @hifmb.bsky.social.
Full-time, 4-year position in a new lab and a dynamic research environment!
Apply now!
👉 jobs.awi.de/Vacancies/18...
Full-time, 4-year position in a new lab and a dynamic research environment!
Apply now!
👉 jobs.awi.de/Vacancies/18...
Reposted by Nils Rädecker
Welcome @radecker.bsky.social! As head of the new HIFMB focus group #Photosymbiosis, he investigates the coexistence of host animals and algae, how symbioses occur and what determines whether they succeed or fail. More about the focus group and Nils' EU-funded project “PhagoPhoRe” here:
Photosymbioses: A Coincidence of Evolution? - HIFMB Oldenburg
The new working group "Photosymbiosis" investigates the coexistence of host animals and algae - the European Research Council provides funding of 1,489,000 eurosRead More
hifmb.de
December 3, 2024 at 9:18 AM
Welcome @radecker.bsky.social! As head of the new HIFMB focus group #Photosymbiosis, he investigates the coexistence of host animals and algae, how symbioses occur and what determines whether they succeed or fail. More about the focus group and Nils' EU-funded project “PhagoPhoRe” here:
I am thrilled to announce that this will be my new workplace. I am joining @hifmb.bsky.social today to start my new focus group on host-microbe interactions in photosymbioses.
Looking forward to meeting old and new friends and exploring new collaborations. 🦠🧫🪸 #microsky
Looking forward to meeting old and new friends and exploring new collaborations. 🦠🧫🪸 #microsky
December 2, 2024 at 11:34 AM
I am thrilled to announce that this will be my new workplace. I am joining @hifmb.bsky.social today to start my new focus group on host-microbe interactions in photosymbioses.
Looking forward to meeting old and new friends and exploring new collaborations. 🦠🧫🪸 #microsky
Looking forward to meeting old and new friends and exploring new collaborations. 🦠🧫🪸 #microsky
Reposted by Nils Rädecker
This really is an excellent paper. It shows that plastid protein import machinery can be inherited through serial transfer, and that we should not expect additional membranes in tertiary plastids. In other words, serial transfers got easier to explain
www.sciencedirect.com/science/arti...
www.sciencedirect.com/science/arti...
Plastid translocon recycling in dinoflagellates demonstrates the portability of complex plastids between hosts
The plastids of photosynthetic organisms on land are predominantly “primary plastids,” derived from an ancient endosymbiosis of a cyanobacterium. Conv…
www.sciencedirect.com
November 23, 2024 at 9:54 AM
This really is an excellent paper. It shows that plastid protein import machinery can be inherited through serial transfer, and that we should not expect additional membranes in tertiary plastids. In other words, serial transfers got easier to explain
www.sciencedirect.com/science/arti...
www.sciencedirect.com/science/arti...
Reposted by Nils Rädecker
A reminder - as understood by Lynn Margulis - that cooperation is the foundation of life.
And that biology does not lend itself to simplistic, mechanistic explanations.
"Blurring traditional boundaries between ecto- and endosymbiosis"
www.nature.com/articles/s41...
And that biology does not lend itself to simplistic, mechanistic explanations.
"Blurring traditional boundaries between ecto- and endosymbiosis"
www.nature.com/articles/s41...
A unique symbiosome in an anaerobic single-celled eukaryote - Nature Communications
Symbiont-housing structures are well-studied in multicellular eukaryotes but rarely in unicellular protists. This study shows that low-oxygen-adapted Anaeramoebae have symbiosomes positioning sul...
www.nature.com
November 11, 2024 at 12:04 PM
A reminder - as understood by Lynn Margulis - that cooperation is the foundation of life.
And that biology does not lend itself to simplistic, mechanistic explanations.
"Blurring traditional boundaries between ecto- and endosymbiosis"
www.nature.com/articles/s41...
And that biology does not lend itself to simplistic, mechanistic explanations.
"Blurring traditional boundaries between ecto- and endosymbiosis"
www.nature.com/articles/s41...
The results of a great collaboration finally out. Symbiotic carbon recycling in coral larvae is enhanced by elevated pCO2 and moderate increases in temperature. 🪸🧫 #Symbiosky
Symbiodiniaceae algal symbionts of Pocillopora damicornis larvae provide more carbon to their coral host under elevated levels of acidification and temperature
Symbiodiniaceae algal symbionts of Pocillopora damicornis larvae provide more carbon to their coral host under elevated levels of acidification and temperature - Communications Biology
Acidification and warming enhance the productivity and nutrient assimilation of Pocillopora damicornis coral larvae, without destabilizing its symbiosis with intracellular algae.
www.nature.com
November 20, 2024 at 8:01 AM
The results of a great collaboration finally out. Symbiotic carbon recycling in coral larvae is enhanced by elevated pCO2 and moderate increases in temperature. 🪸🧫 #Symbiosky
Reposted by Nils Rädecker
4️⃣5️⃣ days left to submit your application and become part of our fantastic international and interdisciplinary team. We have:
🔹5 #postdoc positions
🔹salary level E13 TVÖD (100%), 3 yrs fixed term
🔹start: 1 January 2025
hifmb.de/news/jobs/
#jobsinscience #jobalert
🔹5 #postdoc positions
🔹salary level E13 TVÖD (100%), 3 yrs fixed term
🔹start: 1 January 2025
hifmb.de/news/jobs/
#jobsinscience #jobalert
Jobs - HIFMB Oldenburg
Vacancies External Job Offers Vacancies PostDoc for Tipping behaviour in ecological metacommunities – theory (HIPP25 Pos #1) (m/f/d) PostDoc for Tipping points induced by planktonic dispersal...
hifmb.de
July 10, 2024 at 10:39 AM
4️⃣5️⃣ days left to submit your application and become part of our fantastic international and interdisciplinary team. We have:
🔹5 #postdoc positions
🔹salary level E13 TVÖD (100%), 3 yrs fixed term
🔹start: 1 January 2025
hifmb.de/news/jobs/
#jobsinscience #jobalert
🔹5 #postdoc positions
🔹salary level E13 TVÖD (100%), 3 yrs fixed term
🔹start: 1 January 2025
hifmb.de/news/jobs/
#jobsinscience #jobalert
Reposted by Nils Rädecker
We have an opening for a PhD student in my group.
Project: Understanding the mechanisms of synergistic coevolution.
Approach: Coculture experiments, microscopy,
analyses of fitness/ mutational effects.
Deadline: 28.07.24
Please RT
More info: shorturl.at/5ZP7R
Project: Understanding the mechanisms of synergistic coevolution.
Approach: Coculture experiments, microscopy,
analyses of fitness/ mutational effects.
Deadline: 28.07.24
Please RT
More info: shorturl.at/5ZP7R
142 FB 5 Research Assistant (m/f/d) - Universität Osnabrück
shorturl.at
June 28, 2024 at 6:14 AM
We have an opening for a PhD student in my group.
Project: Understanding the mechanisms of synergistic coevolution.
Approach: Coculture experiments, microscopy,
analyses of fitness/ mutational effects.
Deadline: 28.07.24
Please RT
More info: shorturl.at/5ZP7R
Project: Understanding the mechanisms of synergistic coevolution.
Approach: Coculture experiments, microscopy,
analyses of fitness/ mutational effects.
Deadline: 28.07.24
Please RT
More info: shorturl.at/5ZP7R
Reposted by Nils Rädecker
Reposting for #SymbioSky, originally from @tcsengl.bsky.social.
Symbiosis in context: Connecting insights across systems and scales
When? 7th-10th October 2024
Where? Rothenburg Germany
Some of the invited speakers in here @jillianmpetersen.bsky.social @keyfm.bsky.social
Symbiosis in context: Connecting insights across systems and scales
When? 7th-10th October 2024
Where? Rothenburg Germany
Some of the invited speakers in here @jillianmpetersen.bsky.social @keyfm.bsky.social
June 28, 2024 at 8:26 AM
Reposting for #SymbioSky, originally from @tcsengl.bsky.social.
Symbiosis in context: Connecting insights across systems and scales
When? 7th-10th October 2024
Where? Rothenburg Germany
Some of the invited speakers in here @jillianmpetersen.bsky.social @keyfm.bsky.social
Symbiosis in context: Connecting insights across systems and scales
When? 7th-10th October 2024
Where? Rothenburg Germany
Some of the invited speakers in here @jillianmpetersen.bsky.social @keyfm.bsky.social