Kevin Terretaz
@kwolbachia.bsky.social
Cells, microscopy, colorful LUTs and ImageJ
https://github.com/kwolbachia
For work I study Wolbachia symbiosis in Montpellier
https://github.com/kwolbachia
For work I study Wolbachia symbiosis in Montpellier
Pinned
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...
Reposted by Kevin Terretaz
New preprint! Do you like ocean waves? We found similar waves on bacterial colonies! We found that this collective behavior, known as rippling, is nothing but surface waves on an active nematic. @princeton.edu @mpipks.bsky.social @ub.edu @icreacommunity.bsky.social
www.biorxiv.org/content/10.1...
www.biorxiv.org/content/10.1...
December 2, 2025 at 8:02 PM
New preprint! Do you like ocean waves? We found similar waves on bacterial colonies! We found that this collective behavior, known as rippling, is nothing but surface waves on an active nematic. @princeton.edu @mpipks.bsky.social @ub.edu @icreacommunity.bsky.social
www.biorxiv.org/content/10.1...
www.biorxiv.org/content/10.1...
Reposted by Kevin Terretaz
Zebrafish tail depicting muscle and cell nuclei. Done at @cabd-upo-csic.bsky.social, in @gloriabreacalvo.bsky.social lab.
#FluorescenceFriday, #zebrafish, #DevelopmentalBiology,
#microscopy
#FluorescenceFriday, #zebrafish, #DevelopmentalBiology,
#microscopy
November 28, 2025 at 3:00 PM
Zebrafish tail depicting muscle and cell nuclei. Done at @cabd-upo-csic.bsky.social, in @gloriabreacalvo.bsky.social lab.
#FluorescenceFriday, #zebrafish, #DevelopmentalBiology,
#microscopy
#FluorescenceFriday, #zebrafish, #DevelopmentalBiology,
#microscopy
Reposted by Kevin Terretaz
Our M.Sc. PBioC (Physical Biology of Cells and Cell Interactions) students at @goetheuni.bsky.social had their first hands-on encounter with STED microscopy this week — and they captured some truly stunning super-resolution images.
#FluorescenceFriday #Superresolution
#FluorescenceFriday #Superresolution
November 28, 2025 at 11:59 PM
Our M.Sc. PBioC (Physical Biology of Cells and Cell Interactions) students at @goetheuni.bsky.social had their first hands-on encounter with STED microscopy this week — and they captured some truly stunning super-resolution images.
#FluorescenceFriday #Superresolution
#FluorescenceFriday #Superresolution
Reposted by Kevin Terretaz
For this week #FluorescenceFriday, we'll be treated with one of our favourite animal models 🐸 . Here is a Xenopus laevis embryo imaged with a Lightsheet microscope showing macrophage migration.
Purple🟣 = ectoderm nuclei, Red🔴 = macrophages.
📹: Hoang Anh Le, postdoc in the Mayor lab, UCL.
Purple🟣 = ectoderm nuclei, Red🔴 = macrophages.
📹: Hoang Anh Le, postdoc in the Mayor lab, UCL.
November 28, 2025 at 6:32 PM
For this week #FluorescenceFriday, we'll be treated with one of our favourite animal models 🐸 . Here is a Xenopus laevis embryo imaged with a Lightsheet microscope showing macrophage migration.
Purple🟣 = ectoderm nuclei, Red🔴 = macrophages.
📹: Hoang Anh Le, postdoc in the Mayor lab, UCL.
Purple🟣 = ectoderm nuclei, Red🔴 = macrophages.
📹: Hoang Anh Le, postdoc in the Mayor lab, UCL.
Reposted by Kevin Terretaz
I have more live imaging of actin in B cells from this week for this #FluorescenceFriday
November 28, 2025 at 1:39 PM
I have more live imaging of actin in B cells from this week for this #FluorescenceFriday
Reposted by Kevin Terretaz
So excited to share this as a new junior PI:
My brand-new lab website! 🎉🪰🌀
www.bischofflab.com
Please pass it on to young, motivated researchers looking for PhD positions 😊
And for the #FluorescenceFriday community: don’t miss the SciArt Gallery!
#CellBio #DevBio #PhDjob #PhDposition #Science
My brand-new lab website! 🎉🪰🌀
www.bischofflab.com
Please pass it on to young, motivated researchers looking for PhD positions 😊
And for the #FluorescenceFriday community: don’t miss the SciArt Gallery!
#CellBio #DevBio #PhDjob #PhDposition #Science
November 27, 2025 at 8:26 AM
So excited to share this as a new junior PI:
My brand-new lab website! 🎉🪰🌀
www.bischofflab.com
Please pass it on to young, motivated researchers looking for PhD positions 😊
And for the #FluorescenceFriday community: don’t miss the SciArt Gallery!
#CellBio #DevBio #PhDjob #PhDposition #Science
My brand-new lab website! 🎉🪰🌀
www.bischofflab.com
Please pass it on to young, motivated researchers looking for PhD positions 😊
And for the #FluorescenceFriday community: don’t miss the SciArt Gallery!
#CellBio #DevBio #PhDjob #PhDposition #Science
Reposted by Kevin Terretaz
Final result (better to do the rolling-ball background subtraction before merging, and merging using Max rather than blending)
November 26, 2025 at 4:30 PM
Final result (better to do the rolling-ball background subtraction before merging, and merging using Max rather than blending)
Reposted by Kevin Terretaz
So happy to announce our new preprint, “A geothermal amoeba sets a new upper temperature limit for eukaryotes.” We cultured a novel amoeba from Lassen Volcanic NP (CA, USA) that divides at 63°C (145°F) 🔥 - a new record for euk growth!
#protistsonsky 🧵
#protistsonsky 🧵
November 25, 2025 at 8:41 PM
So happy to announce our new preprint, “A geothermal amoeba sets a new upper temperature limit for eukaryotes.” We cultured a novel amoeba from Lassen Volcanic NP (CA, USA) that divides at 63°C (145°F) 🔥 - a new record for euk growth!
#protistsonsky 🧵
#protistsonsky 🧵
I finally got my hands on a MRI! Didn't help my wrist but now I have some really cool image stacks to play with 🤩
November 25, 2025 at 1:51 PM
I finally got my hands on a MRI! Didn't help my wrist but now I have some really cool image stacks to play with 🤩
Reposted by Kevin Terretaz
I like this movie, but a friend of mine likes to complain about the obvious stitching artifacts. I'll try harder next time, Michael. Vimentin (orange) and ER (blue) in an overnight acquisition.
November 25, 2025 at 6:06 AM
I like this movie, but a friend of mine likes to complain about the obvious stitching artifacts. I'll try harder next time, Michael. Vimentin (orange) and ER (blue) in an overnight acquisition.
Reposted by Kevin Terretaz
I gave a talk at Blender Conference yesterday, showing how biological volumes work, and how to visualize them in Blender 😋 youtu.be/WPajSWX730o?... #bcon25
Microscopy Nodes: handling large biological volumes — Blender Conference 2025
YouTube video by Blender
youtu.be
September 19, 2025 at 7:35 AM
I gave a talk at Blender Conference yesterday, showing how biological volumes work, and how to visualize them in Blender 😋 youtu.be/WPajSWX730o?... #bcon25
Reposted by Kevin Terretaz
Still posting cytoskeleton videos, it seems. Actin this time.
Sample: Lifeact-eGFP in HeLa cells.
Modality: Airyscan confocal
Timestamp is mm:ss and the scale bar is 5 µm.
Sample: Lifeact-eGFP in HeLa cells.
Modality: Airyscan confocal
Timestamp is mm:ss and the scale bar is 5 µm.
November 23, 2025 at 3:21 AM
Still posting cytoskeleton videos, it seems. Actin this time.
Sample: Lifeact-eGFP in HeLa cells.
Modality: Airyscan confocal
Timestamp is mm:ss and the scale bar is 5 µm.
Sample: Lifeact-eGFP in HeLa cells.
Modality: Airyscan confocal
Timestamp is mm:ss and the scale bar is 5 µm.
Reposted by Kevin Terretaz
iPS cell-derived cardiac myocytes (heart muscle cells) typically beat about once per second, so I usually speed up the movies I post; otherwise, scrollers might miss the action. But every now and then, a cell looks like this in real time. #CellBiology
November 10, 2025 at 1:56 AM
iPS cell-derived cardiac myocytes (heart muscle cells) typically beat about once per second, so I usually speed up the movies I post; otherwise, scrollers might miss the action. But every now and then, a cell looks like this in real time. #CellBiology
Reposted by Kevin Terretaz
Attempt number seven at uploading this video of intermediate filaments in an enormous COS7 cell. I have a feeling the BlueSky compression will not do it any favors.
November 21, 2025 at 3:54 AM
Attempt number seven at uploading this video of intermediate filaments in an enormous COS7 cell. I have a feeling the BlueSky compression will not do it any favors.
Reposted by Kevin Terretaz
Happy #FluorescenceFriday. This beautiful video shows slice by slice section of a zebrafish embryo's head. The embryo is almost completely transparent, proving that zebrafish is an amazing model system for microscopy.
Brightfield, red = actin, blue = DAPI
📹: Postdoc Matyas BL (@Mongera lab, UCL)
Brightfield, red = actin, blue = DAPI
📹: Postdoc Matyas BL (@Mongera lab, UCL)
November 21, 2025 at 5:34 PM
Happy #FluorescenceFriday. This beautiful video shows slice by slice section of a zebrafish embryo's head. The embryo is almost completely transparent, proving that zebrafish is an amazing model system for microscopy.
Brightfield, red = actin, blue = DAPI
📹: Postdoc Matyas BL (@Mongera lab, UCL)
Brightfield, red = actin, blue = DAPI
📹: Postdoc Matyas BL (@Mongera lab, UCL)
Reposted by Kevin Terretaz
Finally, the first public release of #BigVolumeBrowser, so after teasers, you can try it yourself. For details, please check the announcement post (1/2)
forum.image.sc/t/bigvolumeb...
forum.image.sc/t/bigvolumeb...
BigVolumeBrowser: a new 3D multi volume/mesh/point clould (SMLM) data viewer
Hello everyone, I’d like to share with you another 3D viewer for FIJI, BigVolumeBrowser (full documentation link). It‘s a first initial public release, so there is still space for improvements. Le...
forum.image.sc
November 21, 2025 at 9:29 AM
Finally, the first public release of #BigVolumeBrowser, so after teasers, you can try it yourself. For details, please check the announcement post (1/2)
forum.image.sc/t/bigvolumeb...
forum.image.sc/t/bigvolumeb...
I updated the Image Viewer and the wiki page with many small bug fixes and features! If you haven't tried it yet, now it's even better ;)
#microscopy #ImageJ #FluorescenceFriday #microscopyMonday
#microscopy #ImageJ #FluorescenceFriday #microscopyMonday
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 16, 2025 at 10:03 PM
I updated the Image Viewer and the wiki page with many small bug fixes and features! If you haven't tried it yet, now it's even better ;)
#microscopy #ImageJ #FluorescenceFriday #microscopyMonday
#microscopy #ImageJ #FluorescenceFriday #microscopyMonday
Reposted by Kevin Terretaz
This week's #FluorescenceFriday, we'll be treated with one of the classical models of #devbio, the neural crest cells. Here is a beautiful video of neural crest cells with GFP-tagged focal adhesion kinase (🔵) and LifeAct-RFP (🟣) migrating on a Fibronectin matrix.
📹: Adam Shellard
📹: Adam Shellard
November 14, 2025 at 5:45 PM
This week's #FluorescenceFriday, we'll be treated with one of the classical models of #devbio, the neural crest cells. Here is a beautiful video of neural crest cells with GFP-tagged focal adhesion kinase (🔵) and LifeAct-RFP (🟣) migrating on a Fibronectin matrix.
📹: Adam Shellard
📹: Adam Shellard
Reposted by Kevin Terretaz
I guess it never gets old...bc we love #CellMigration
ATP has many roles: energy currency, hydrotrope, and *danger signal*
Immune cells are faster after ATP exposure, F-actin (cyan) goes to the rear for nitro boost!
www.science.org/doi/full/10....
@focalplane.bsky.social #fluorescencefriday 🧪🔬
ATP has many roles: energy currency, hydrotrope, and *danger signal*
Immune cells are faster after ATP exposure, F-actin (cyan) goes to the rear for nitro boost!
www.science.org/doi/full/10....
@focalplane.bsky.social #fluorescencefriday 🧪🔬
November 14, 2025 at 8:38 PM
I guess it never gets old...bc we love #CellMigration
ATP has many roles: energy currency, hydrotrope, and *danger signal*
Immune cells are faster after ATP exposure, F-actin (cyan) goes to the rear for nitro boost!
www.science.org/doi/full/10....
@focalplane.bsky.social #fluorescencefriday 🧪🔬
ATP has many roles: energy currency, hydrotrope, and *danger signal*
Immune cells are faster after ATP exposure, F-actin (cyan) goes to the rear for nitro boost!
www.science.org/doi/full/10....
@focalplane.bsky.social #fluorescencefriday 🧪🔬
Reposted by Kevin Terretaz
🔬🍀
A timelapse movie (unpublished data) from the lab.
In the movie, the nucleus is moving towards the base of the polarized root hair cell.
A timelapse movie (unpublished data) from the lab.
In the movie, the nucleus is moving towards the base of the polarized root hair cell.
November 11, 2025 at 6:01 PM
🔬🍀
A timelapse movie (unpublished data) from the lab.
In the movie, the nucleus is moving towards the base of the polarized root hair cell.
A timelapse movie (unpublished data) from the lab.
In the movie, the nucleus is moving towards the base of the polarized root hair cell.
Reposted by Kevin Terretaz
During my postdoc, I looked at hundreds of images like this 🤩
These are two apical caulonemal cells from moss Physcomitrium patens stained with MDY64 (shown in shades of orange). The natural autofluorescence of chlorophyll is in cyan.
#microscopymonday #moss #plantcells #plantmicroscopy
These are two apical caulonemal cells from moss Physcomitrium patens stained with MDY64 (shown in shades of orange). The natural autofluorescence of chlorophyll is in cyan.
#microscopymonday #moss #plantcells #plantmicroscopy
November 10, 2025 at 3:33 PM
During my postdoc, I looked at hundreds of images like this 🤩
These are two apical caulonemal cells from moss Physcomitrium patens stained with MDY64 (shown in shades of orange). The natural autofluorescence of chlorophyll is in cyan.
#microscopymonday #moss #plantcells #plantmicroscopy
These are two apical caulonemal cells from moss Physcomitrium patens stained with MDY64 (shown in shades of orange). The natural autofluorescence of chlorophyll is in cyan.
#microscopymonday #moss #plantcells #plantmicroscopy
Reposted by Kevin Terretaz
This image by MDI Bio Lab's Travis Carney is a #drosophila larval brain. Neural stem cells and neurons are marked, including axons that project into the brain. The flare in the center of each lobe is part of a learning and memory center in flies.
ZEISS Microscopy #microscopymonday 🧪 🤝
ZEISS Microscopy #microscopymonday 🧪 🤝
November 10, 2025 at 3:01 PM
This image by MDI Bio Lab's Travis Carney is a #drosophila larval brain. Neural stem cells and neurons are marked, including axons that project into the brain. The flare in the center of each lobe is part of a learning and memory center in flies.
ZEISS Microscopy #microscopymonday 🧪 🤝
ZEISS Microscopy #microscopymonday 🧪 🤝
Reposted by Kevin Terretaz
Happy #FluorescenceFriday from these primary astrocytes grown on glass slides and robotically stained on the Biocare Oncore Pro X! 🧠🔬🧪
Cyan = GFAP
Royal Purple = ALDH1L1
Salmon = Nuclear Counterstain
Cyan = GFAP
Royal Purple = ALDH1L1
Salmon = Nuclear Counterstain
November 7, 2025 at 7:26 PM
Happy #FluorescenceFriday from these primary astrocytes grown on glass slides and robotically stained on the Biocare Oncore Pro X! 🧠🔬🧪
Cyan = GFAP
Royal Purple = ALDH1L1
Salmon = Nuclear Counterstain
Cyan = GFAP
Royal Purple = ALDH1L1
Salmon = Nuclear Counterstain
Reposted by Kevin Terretaz
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...
Reposted by Kevin Terretaz
Two neurons went into a bar...
November 6, 2025 at 11:52 AM
Two neurons went into a bar...