Kevin Terretaz
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kwolbachia.bsky.social
Kevin Terretaz
@kwolbachia.bsky.social
Cells, microscopy, colorful LUTs and ImageJ
https://github.com/kwolbachia

For work I study Wolbachia symbiosis in Montpellier
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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...
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
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...
November 16, 2025 at 10:03 PM
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
November 14, 2025 at 5:45 PM
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 🧪🔬
November 14, 2025 at 8:38 PM
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A timelapse movie (unpublished data) from the lab.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.
November 11, 2025 at 6:01 PM
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
November 10, 2025 at 3:33 PM
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 🧪 🤝
November 10, 2025 at 3:01 PM
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
November 7, 2025 at 7:26 PM
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...
November 4, 2025 at 10:40 PM
Reposted by Kevin Terretaz
Two neurons went into a bar...
November 6, 2025 at 11:52 AM
Reposted by Kevin Terretaz
HL60 cells take on so many fun shapes as they migrate! This #InsightFromImaging data features cells prepared by Leanna and imaged on the @aicjanelia.bsky.social LLSM by @cmhobson.bsky.social
November 4, 2025 at 10:36 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...
November 4, 2025 at 10:40 PM
Reposted by Kevin Terretaz
November 3, 2025 at 1:34 PM
Reposted by Kevin Terretaz
In the spirit 👻 of Freaky Friday 🎃, here is a beautiful yet eery video of zebrafish retina development showing horizontal cells (🔵) finding their way out of the crowded amacrine (🟠) layer to settle beneath the photoreceptors. Happy #Halloween!
🎥: PhD student Rae Wong from the @nordenlab.bsky.social
October 31, 2025 at 2:29 PM
Reposted by Kevin Terretaz
An iPSC heart muscle cell forming sarcomeres videoed through a microscope by Emma Koory for 20 h before it dies most dramatically. This was our first try on a new microscope, and Emma now has the imaging parameters dialed in so her cells do not go POP! Alpha-actinin-2 is shown. #CellBiology
October 31, 2025 at 2:46 PM
Reposted by Kevin Terretaz
I don’t always manage to get the cochlea out… But I love it when I do! #FluorescenceFriday
October 31, 2025 at 12:55 PM
Reposted by Kevin Terretaz
Happy (and spooky) #FluorescenceFriday

Switching from frogs (which are underrated btw) to zebrafish has really made me appreciate transparent tissues! 🐟

28 hpf, ⚪ nuclei, 🔴 F-actin
October 31, 2025 at 3:20 PM
Reposted by Kevin Terretaz
For this #FluorescenceFriday I wanted to share this spooky eye from a squid embryo! 👁️🦑
October 31, 2025 at 4:18 PM
Reposted by Kevin Terretaz
October 31, 2025 at 4:21 PM
Reposted by Kevin Terretaz
Can't believe it — my first‑author paper is out and my image graces the cover of @dev-journal.bsky.social 🎉

Here, we reveal how early developmental programs shape and maintain #zebrafish gill architecture throughout life
🔗 journals.biologists.com/dev/issue/15...

#FluorescenceFriday #LifelongDevSI
October 31, 2025 at 10:55 AM
Reposted by Kevin Terretaz
Brain microscopy with annotations for better understanding ☺️! What if we take a deep dive into the cerebral sulcus? The grey matter has the neurons' cell bodies🔵, and while microglia🟣are more evenly distributed, astrocytes🟡 shape changes in the white matter. #Neuroscience #Microscopy 🧠🔬
October 30, 2025 at 4:59 AM
Reposted by Kevin Terretaz
Ascidians (Ciona intestinalis)🪸Our distant chordate cousins! 🌊 Simple sea squirts that reveal how vertebrate body plans evolved 🧬 A key model for notochord formation, neural induction, and cell lineage mapping 📸 Video by MBL Embryology 2019 #ModelMonday #DevBio #EvoDevo
October 28, 2025 at 12:46 AM
Reposted by Kevin Terretaz
#FluorescenceFriday once again <3
October 24, 2025 at 9:06 AM
Reposted by Kevin Terretaz
What looks like art is actually biology — a rat liver cell seen under the microscope.

Those glowing strands are actin and microtubules, the scaffolding that lets the liver filter blood, detoxify chemicals, and even regrow itself.

Credit to Dr. Francisco Lázaro-Diéguez!

#Science #Microscopy
October 17, 2025 at 4:08 PM
Have a nice #FluorescenceFriday!
This is pollen from pine tree, imaged from auto-fluorescence by confocal microscopy
the LUT is "KTZ bw DarkGold" 🔥
October 17, 2025 at 4:29 PM
Reposted by Kevin Terretaz
For this #FluorescenceFriday 🔬
a cryosection of a dissected zebrafish gill, stained with phalloidin (orange) and DAPI (blue-ish).

#Zebrafish #DevBio #Microscopy
October 17, 2025 at 3:15 PM