Marie Walde
@mariescopy.bsky.social
Biophysicist using #microscopy and image analysis to study eukaryotic #microbes ( #protists) in the #marine #plankton
Postdoc @roscoff-collection.bsky.social
🇩🇪🇫🇷🌊🦠👩💻🔬
🦣 ecoevo.social/@mariescopy
🔬 mariescopy.github.io
📑 orcid.org/0000-0002-4071-7677
Postdoc @roscoff-collection.bsky.social
🇩🇪🇫🇷🌊🦠👩💻🔬
🦣 ecoevo.social/@mariescopy
🔬 mariescopy.github.io
📑 orcid.org/0000-0002-4071-7677
Reposted by Marie Walde
Just 4 days until the start of I2K and its 33 totally free image analysis tutorials and events! Please share with your "home networks", especially early career researchers - the videos will be amazing and high-impact no matter how many people attend live, BUT (1/x)
November 13, 2025 at 2:32 PM
Just 4 days until the start of I2K and its 33 totally free image analysis tutorials and events! Please share with your "home networks", especially early career researchers - the videos will be amazing and high-impact no matter how many people attend live, BUT (1/x)
Reposted by Marie Walde
COP30: Why marine microbiomes must be on the climate agenda. Read about it at: marinemicrobiome.org/cop30-why-ma...
November 16, 2025 at 6:20 PM
COP30: Why marine microbiomes must be on the climate agenda. Read about it at: marinemicrobiome.org/cop30-why-ma...
Reposted by Marie Walde
We are looking for a PhD student to work on an exciting plastid endosymbiosis in microbial eukaryotes. This position involves sampling, exciting microscopy such as CARDFISH, ExM and FIBSEM, single-cell transcriptomics and more. #protistsonsky 1/2
November 12, 2025 at 9:50 AM
We are looking for a PhD student to work on an exciting plastid endosymbiosis in microbial eukaryotes. This position involves sampling, exciting microscopy such as CARDFISH, ExM and FIBSEM, single-cell transcriptomics and more. #protistsonsky 1/2
Reposted by Marie Walde
The Center for Microscopy and Image Analysis at the University of Zurich is seeking a new Head:
jobs.uzh.ch/job-vacancie...
It is super fun to work with them, tons of expertise and cutting edge instrumentation in ❄️🔬
Application deadline: December 15, 2025.
jobs.uzh.ch/job-vacancie...
It is super fun to work with them, tons of expertise and cutting edge instrumentation in ❄️🔬
Application deadline: December 15, 2025.
UZH: Head of the Center for Microscopy and Image Analysis (Core Facility)
The Center for Microscopy and Image Analysis (ZMB) is a nationally and internationally recognized Core Facility at the University of Zurich (UZH), providing access to state-of-the-art light and electr...
jobs.uzh.ch
November 12, 2025 at 6:42 PM
The Center for Microscopy and Image Analysis at the University of Zurich is seeking a new Head:
jobs.uzh.ch/job-vacancie...
It is super fun to work with them, tons of expertise and cutting edge instrumentation in ❄️🔬
Application deadline: December 15, 2025.
jobs.uzh.ch/job-vacancie...
It is super fun to work with them, tons of expertise and cutting edge instrumentation in ❄️🔬
Application deadline: December 15, 2025.
Reposted by Marie Walde
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 Marie Walde
🚀 Exciting news for the imaging community!
The EMBO Practical Course – Hack Your Microscope is coming to ITQB NOVA (Oeiras, Portugal) on April 20–25, 2026 🧠🔬
👉 Course details & registration: meetings.embo.org/event/26-mic...
#Microscopy #OpenScience #Bioimaging #EMBOmicroscope
The EMBO Practical Course – Hack Your Microscope is coming to ITQB NOVA (Oeiras, Portugal) on April 20–25, 2026 🧠🔬
👉 Course details & registration: meetings.embo.org/event/26-mic...
#Microscopy #OpenScience #Bioimaging #EMBOmicroscope
November 10, 2025 at 9:10 AM
🚀 Exciting news for the imaging community!
The EMBO Practical Course – Hack Your Microscope is coming to ITQB NOVA (Oeiras, Portugal) on April 20–25, 2026 🧠🔬
👉 Course details & registration: meetings.embo.org/event/26-mic...
#Microscopy #OpenScience #Bioimaging #EMBOmicroscope
The EMBO Practical Course – Hack Your Microscope is coming to ITQB NOVA (Oeiras, Portugal) on April 20–25, 2026 🧠🔬
👉 Course details & registration: meetings.embo.org/event/26-mic...
#Microscopy #OpenScience #Bioimaging #EMBOmicroscope
Reposted by Marie Walde
Sensing a rainbow of colors: algal photoreceptors🦠The diversity of microalgae and their rhodopsins🧬
frontiersin.org/journals/pla...
#OpenAccess
frontiersin.org/journals/pla...
#OpenAccess
November 10, 2025 at 12:31 AM
Sensing a rainbow of colors: algal photoreceptors🦠The diversity of microalgae and their rhodopsins🧬
frontiersin.org/journals/pla...
#OpenAccess
frontiersin.org/journals/pla...
#OpenAccess
Reposted by Marie Walde
Half of microbial eukaryote literature focuses on only twelve human parasites
#microbiology #protists #eukaryotes
@isme-microbes.bsky.social
academic.oup.com/ismej/articl...
#microbiology #protists #eukaryotes
@isme-microbes.bsky.social
academic.oup.com/ismej/articl...
Half of microbial eukaryote literature focuses on only 12 human parasites
Abstract. Although microbial eukaryotes comprise the majority of eukaryotic phylogenetic diversity and inhabit nearly all ecosystems globally, most researc
academic.oup.com
November 9, 2025 at 10:10 AM
Half of microbial eukaryote literature focuses on only twelve human parasites
#microbiology #protists #eukaryotes
@isme-microbes.bsky.social
academic.oup.com/ismej/articl...
#microbiology #protists #eukaryotes
@isme-microbes.bsky.social
academic.oup.com/ismej/articl...
Reposted by Marie Walde
An Asgard archaeon with internal membrane compartments
Brilliant study led by @fmacleod.bsky.social and Andriko von Kügelgen. Tight collaboration with @buzzbaum.bsky.social and lab. Congrats to all authors!
www.biorxiv.org/content/10.1...
Brilliant study led by @fmacleod.bsky.social and Andriko von Kügelgen. Tight collaboration with @buzzbaum.bsky.social and lab. Congrats to all authors!
www.biorxiv.org/content/10.1...
November 7, 2025 at 10:44 AM
An Asgard archaeon with internal membrane compartments
Brilliant study led by @fmacleod.bsky.social and Andriko von Kügelgen. Tight collaboration with @buzzbaum.bsky.social and lab. Congrats to all authors!
www.biorxiv.org/content/10.1...
Brilliant study led by @fmacleod.bsky.social and Andriko von Kügelgen. Tight collaboration with @buzzbaum.bsky.social and lab. Congrats to all authors!
www.biorxiv.org/content/10.1...
Reposted by Marie Walde
Reposted by Marie Walde
Testing out the new hyped AI peer review tool (@qedscience.bsky.social) on one of my old papers and saw many of the errors people are posting about online, but this comment made me laugh! Thank you LLM for blindly trusting my movies are amazing even if you have not seen them
November 7, 2025 at 4:57 PM
Testing out the new hyped AI peer review tool (@qedscience.bsky.social) on one of my old papers and saw many of the errors people are posting about online, but this comment made me laugh! Thank you LLM for blindly trusting my movies are amazing even if you have not seen them
Reposted by Marie Walde
Oligonucleotide design meets big data:
We present oligoN-design, a simple, reproducible and versatile open-source tool to design specific primers and probes directly from large environmental DNA datasets.
🔗 DOI: doi.org/10.1101/2025...
👉 github.com/MiguelMSandi...
We present oligoN-design, a simple, reproducible and versatile open-source tool to design specific primers and probes directly from large environmental DNA datasets.
🔗 DOI: doi.org/10.1101/2025...
👉 github.com/MiguelMSandi...
November 7, 2025 at 12:54 PM
Oligonucleotide design meets big data:
We present oligoN-design, a simple, reproducible and versatile open-source tool to design specific primers and probes directly from large environmental DNA datasets.
🔗 DOI: doi.org/10.1101/2025...
👉 github.com/MiguelMSandi...
We present oligoN-design, a simple, reproducible and versatile open-source tool to design specific primers and probes directly from large environmental DNA datasets.
🔗 DOI: doi.org/10.1101/2025...
👉 github.com/MiguelMSandi...
Reposted by Marie Walde
🌊 By 2100, Arctic phytoplankton blooms will start ~34 days earlier, last ~15 days longer, and become less dominant overall, as warming reduces the seasonality of ocean productivity
Climate change is rapidly reshaping the timing and importance of Arctic productivity
www.nature.com/articles/s43...
Climate change is rapidly reshaping the timing and importance of Arctic productivity
www.nature.com/articles/s43...
End-of-century Arctic Ocean phytoplankton blooms start a month earlier due to anthropogenic climate change - Communications Earth & Environment
Anthropogenic climate change impacts Arctic Ocean phytoplankton phenology, resulting in phytoplankton blooms which start 34 days earlier and last 15 days longer in 2100 compared with 1970, according t...
www.nature.com
November 6, 2025 at 5:38 PM
🌊 By 2100, Arctic phytoplankton blooms will start ~34 days earlier, last ~15 days longer, and become less dominant overall, as warming reduces the seasonality of ocean productivity
Climate change is rapidly reshaping the timing and importance of Arctic productivity
www.nature.com/articles/s43...
Climate change is rapidly reshaping the timing and importance of Arctic productivity
www.nature.com/articles/s43...
Reposted by Marie Walde
Laurence Wilson and Martin Bees use high-speed 3D holographic imaging to capture the flagellar beat of single algal cells, revealing changes in the ‘handedness’ of the flagellar shapes at different points in their cycle.
#JCSciliaSI
journals.biologists.com/jcs/article/...
#JCSciliaSI
journals.biologists.com/jcs/article/...
November 6, 2025 at 9:05 AM
Laurence Wilson and Martin Bees use high-speed 3D holographic imaging to capture the flagellar beat of single algal cells, revealing changes in the ‘handedness’ of the flagellar shapes at different points in their cycle.
#JCSciliaSI
journals.biologists.com/jcs/article/...
#JCSciliaSI
journals.biologists.com/jcs/article/...
Reposted by Marie Walde
My new ImageJ / Fiji toolkit is out 🔥! The goal is to make image handling & visualization easy, with an intuitive interface! Install it on Fiji with the "Image Viewer" update site
#microscopy #ImageJ #FluorescenceFriday #microscopyMonday
imagej.net/plugins/imag...
#microscopy #ImageJ #FluorescenceFriday #microscopyMonday
imagej.net/plugins/imag...
November 4, 2025 at 10:40 PM
My new ImageJ / Fiji toolkit is out 🔥! The goal is to make image handling & visualization easy, with an intuitive interface! Install it on Fiji with the "Image Viewer" update site
#microscopy #ImageJ #FluorescenceFriday #microscopyMonday
imagej.net/plugins/imag...
#microscopy #ImageJ #FluorescenceFriday #microscopyMonday
imagej.net/plugins/imag...
The beauty of protist ultrastructures never ceases to fascinate me. 🤩
Great effort to systematically test their accessibility to Expansion Microscopy and immunolabeling protocols! 👏🏻
(And very useful supplementary table—77 succesfully processed strains from @roscoff-collection.bsky.social. Yay! 🥳)
Great effort to systematically test their accessibility to Expansion Microscopy and immunolabeling protocols! 👏🏻
(And very useful supplementary table—77 succesfully processed strains from @roscoff-collection.bsky.social. Yay! 🥳)
🚨Our collaboration with @centriolelab.bsky.social & @gautamdey.bsky.social is out today in @cp-cell.bsky.social
We show that #Expansion #Microscopy is a broad-spectrum modality for Euks, enabling 3D phenotypic maps rooted to phylogeny.
#ProtistsOnSky #SciComm #SciSky
www.cell.com/cell/fulltex...
We show that #Expansion #Microscopy is a broad-spectrum modality for Euks, enabling 3D phenotypic maps rooted to phylogeny.
#ProtistsOnSky #SciComm #SciSky
www.cell.com/cell/fulltex...
November 1, 2025 at 12:41 PM
The beauty of protist ultrastructures never ceases to fascinate me. 🤩
Great effort to systematically test their accessibility to Expansion Microscopy and immunolabeling protocols! 👏🏻
(And very useful supplementary table—77 succesfully processed strains from @roscoff-collection.bsky.social. Yay! 🥳)
Great effort to systematically test their accessibility to Expansion Microscopy and immunolabeling protocols! 👏🏻
(And very useful supplementary table—77 succesfully processed strains from @roscoff-collection.bsky.social. Yay! 🥳)
Reposted by Marie Walde
So good news, I got a job offer in London! 🎉
Bad news, my husband has applied for 30 positions with no interviews.
If anyone has any connections in London in the information security space, I would be eternally grateful
Bad news, my husband has applied for 30 positions with no interviews.
If anyone has any connections in London in the information security space, I would be eternally grateful
October 31, 2025 at 6:21 PM
So good news, I got a job offer in London! 🎉
Bad news, my husband has applied for 30 positions with no interviews.
If anyone has any connections in London in the information security space, I would be eternally grateful
Bad news, my husband has applied for 30 positions with no interviews.
If anyone has any connections in London in the information security space, I would be eternally grateful
Reposted by Marie Walde
In the 1600s, thousands of people were buried in crypts under a Milan hospital & preserved by unusual conditions. “What is striking is how much you can extrapolate from an ancient body,” says one researcher, “and how much you can understand from that about the period they lived in." @science.org
Thousands buried in 17th century Italian crypt reveal lives of working poor
Remains recovered from beneath a Milan hospital shed light on health, diet, and drug habits during the 1600s
www.science.org
October 29, 2025 at 3:16 AM
In the 1600s, thousands of people were buried in crypts under a Milan hospital & preserved by unusual conditions. “What is striking is how much you can extrapolate from an ancient body,” says one researcher, “and how much you can understand from that about the period they lived in." @science.org
Reposted by Marie Walde
We are hiring an Imaging Scientis. Apply here: go.mbl.edu/AS1887
October 28, 2025 at 6:43 PM
We are hiring an Imaging Scientis. Apply here: go.mbl.edu/AS1887
Reposted by Marie Walde
Chatbots — LLMs — do not know facts and are not designed to be able to accurately answer factual questions. They are designed to find and mimic patterns of words, probabilistically. When they’re “right” it’s because correct things are often written down, so those patterns are frequent. That’s all.
June 19, 2025 at 11:21 AM
Chatbots — LLMs — do not know facts and are not designed to be able to accurately answer factual questions. They are designed to find and mimic patterns of words, probabilistically. When they’re “right” it’s because correct things are often written down, so those patterns are frequent. That’s all.
Reposted by Marie Walde
🚨 A fantastic opportunity to join HIRI to start your research group on RNA Biology 👇 www.nature.com/naturecareer...
Junior Group Leader for RNA-Biology, RNA-Technology or RNA-Medicine (f/m/d) - Würzburg (Stadt), Bayern (DE) job with Helmholtz-Institut für RNA-basierte Infektionsforschung (HIRI) | 12844907
#RNAexcellence Junior Group Leader Positions (f/m/d) Job advertisement no.: 089/2025 Starting date: As soon as possible. The con...
www.nature.com
October 27, 2025 at 9:55 PM
🚨 A fantastic opportunity to join HIRI to start your research group on RNA Biology 👇 www.nature.com/naturecareer...
Reposted by Marie Walde
PhD available in my group to work on polar nitrogen fixation www.findaphd.com/phds/project...
Exploring new drivers for nitrogen fixation in polar oceans at University of Southampton on FindAPhD.com
PhD Project - Exploring new drivers for nitrogen fixation in polar oceans at University of Southampton, listed on FindAPhD.com
www.findaphd.com
October 14, 2025 at 10:38 AM
PhD available in my group to work on polar nitrogen fixation www.findaphd.com/phds/project...
Reposted by Marie Walde
PAPER OUT ✨ What if you could use your microscope as a 3D printer? Prototype microfluidics in-house, <5$ in material costs per chip. From idea to experiment within a day. Now published in Lab-on-a-Chip (open-access): doi.org/10.1039/D5LC...
July 16, 2025 at 11:51 AM
PAPER OUT ✨ What if you could use your microscope as a 3D printer? Prototype microfluidics in-house, <5$ in material costs per chip. From idea to experiment within a day. Now published in Lab-on-a-Chip (open-access): doi.org/10.1039/D5LC...
Reposted by Marie Walde
I can only assume that this is the detached tentacle of a ctenophore. Any other ideas are welcome! Even though it’s detached, it’s still moving about, as this timelapse shows.
#marineplankton 🦑
#marineplankton 🦑
October 25, 2025 at 11:47 AM
I can only assume that this is the detached tentacle of a ctenophore. Any other ideas are welcome! Even though it’s detached, it’s still moving about, as this timelapse shows.
#marineplankton 🦑
#marineplankton 🦑
Reposted by Marie Walde
Postdoc vacancy: Microbial dormancy in the cryosphere
@erc.europa.eu #ERC_SIESTA
📢 PLEASE RT
🧬 Single cell microbial activity measurements, flow cytometry, cell sorting, omics, ecological interpretation
☀️ Marseille, France
‼️ Apply ASAP & before 7 Nov
Link: emploi.cnrs.fr/Offres/CDD/U...
@erc.europa.eu #ERC_SIESTA
📢 PLEASE RT
🧬 Single cell microbial activity measurements, flow cytometry, cell sorting, omics, ecological interpretation
☀️ Marseille, France
‼️ Apply ASAP & before 7 Nov
Link: emploi.cnrs.fr/Offres/CDD/U...
October 21, 2025 at 3:48 PM
Postdoc vacancy: Microbial dormancy in the cryosphere
@erc.europa.eu #ERC_SIESTA
📢 PLEASE RT
🧬 Single cell microbial activity measurements, flow cytometry, cell sorting, omics, ecological interpretation
☀️ Marseille, France
‼️ Apply ASAP & before 7 Nov
Link: emploi.cnrs.fr/Offres/CDD/U...
@erc.europa.eu #ERC_SIESTA
📢 PLEASE RT
🧬 Single cell microbial activity measurements, flow cytometry, cell sorting, omics, ecological interpretation
☀️ Marseille, France
‼️ Apply ASAP & before 7 Nov
Link: emploi.cnrs.fr/Offres/CDD/U...