Kevin Terretaz

@kwolbachia.bsky.social

Cells, microscopy, colorful LUTs and ImageJ https://github.com/kwolbachia For work I study Wolbachia symbiosis in Montpellier

Watch a muscle fiber take shape. 🔬 This microscopic video captures a muscle cell fusing with a developing muscle fiber, with cell membranes visible in purple and yellow. The Rando Lab uses live-cell imaging to understand how cells coordinate muscle regeneration. Credit: Tamas Nagy/Rando Lab

The hidden geometry of the cytoskeleton 📐✨ Swipe to see the weird and wonderful world of Septin geometries in this giant human cell: 🟠Septin 7 🔵Actin 🟣DNA 🔬Joe McKellar

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Despite its nebula-like qualities, this image is from the microscopic rather than astrophysical scale. This adherent cell was labeled for focal adhesions (blue structures) and actin (orange fibers). It is one of the many samples the team is hard at work preparing for #IALSJanelia 2026!

An image taken on a microscope of a single adherent cell. Two images were combined in this visualization: an image taken with widefield illumination (orange colors) and an image taken using TIRF (blue colors). Together these colors highlight fibers of actin and elongated focal adhesion structures.

Annual killifish continue to surprise us: they make neutrophils before almost every other cell type, even before gastrulation. Neutrophils usually arise from the lateral plate mesoderm (forming in cyan), but in killifish they are already patrolling around the embryo in gold. tinyurl.com/killiphil