Author | Lightnews

Reposted by Sarah Guest

Omaya Dudin 𓂆 ¦🍉¦🦠¦🔬¦ @dudinlab.bsky.social · 3d

🚨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...

15 96 200

Reposted by Sarah Guest

Kirk Amundson @kirkamundson.bsky.social · 3d

Our lab’s variegated peperomia makes green flecks on leaves, but only on the abaxial side. It’s the typical sandwich: L1 green-L2 yellow-L3 green, so guessing flecks are L1-derived cells dividing periclinally into L2. But how only on the abaxial side? Something to do with the super thick epidermis?

2 10

Sarah Guest @sarahmoeba.bsky.social · 5d

Just for fun, here's a game I like to call "Find the neuron" with examples of olfactory sensory neuron images from Šmít et al 2017 (doi.org/10.7554/eLif...) and Filoreta ramosa, a free-living syncytial amoeba from a salt marsh.

1 6

Sarah Guest @sarahmoeba.bsky.social · 5d

My PhD work is up on bioRxiv! Read all about the #actin and #microtubule #cytoskeleton of the Rhizarian #amoeba Filoreta ramosa here: www.biorxiv.org/content/10.1...

3 5

Sarah Guest @sarahmoeba.bsky.social · 10d

Autumn is just the best

3

Reposted by Sarah Guest

John Burns @burnsajohn.bsky.social · Jun 17

This is glorious! And diatoms are as weird as ever!

Flora Vincent @floravincent.bsky.social · Jun 17

Excited to share the lab's 1rst preprint! Rapid high-res immunofluorescence is now possible in cultured & environmental diatoms thanks to 4-fold expansion microscopy. A step-change for comparative cell biology in one of the most important phytoplankton groups on the planet 🥳
tinyurl.com/m9s5su7s 1/2

2 2 15

Reposted by Sarah Guest

Jürgen Strassert @strassert.bsky.social · Jun 13

Happy to have contributed to this great article: #Protist genomics: key to understanding eukaryotic evolution. Congrats Alexandra Schoenle et al. #ProtistsOnSky
authors.elsevier.com/sd/article/S...

3 42 87

Reposted by Sarah Guest

Journal of Eukaryotic Microbiology @jeukmicro.bsky.social · Jun 5

Highlighted paper! Daisuke Yamagishi, et al. open a new front in the drive to understand photosymbiosis in protists.

Article➡️ doi.org/10.1111/jeu....

#protistsonsky

5 11

Sarah Guest @sarahmoeba.bsky.social · Jun 3

Synopsis: A hungry amoeba attempts to eat another amoeba roughly equal to its own size. After numerous failed attempts to engulf it, and briefly losing it in a mess of detritus, it encounters a flailing nematode. Fearing for its life, it abandons its prey, and finally captures a smaller meal.

5

Sarah Guest @sarahmoeba.bsky.social · Jun 3

An amoeba movie I made: "hungry" #protistsonsky #amoeba

1 7 28

Reposted by Sarah Guest

Ben Larson @blarson.bsky.social · May 15

I contributed an essay and some images to the new Living Futures series, an outgrowth of the fantastic Living Histories series organized by Sri Biswas and others.
medium.com/@thelhseries...

iyerbiswas.com/outreach/liv...

1/3

Microbial Marvels, Microscopes, Math, and Mentorship

by Ben Larson for Living Futures

medium.com

1 4 12

Sarah Guest @sarahmoeba.bsky.social · Jun 2

Poor dude can't catch dinner #protistsonsky #amoeba

1 9

Reposted by Sarah Guest

Peter Gleick @petergleick.bsky.social · May 31

There are 2 previous historical cases of countries destroying their science and universities, crippling them for decades: Lysenkoism in the USSR and Nazi Germany. The Trump administration will be the 3rd.
It's not just budgets but research, institutions, expertise, and training the next generation.

Graphs showing 25 years of budgets for the National Institute of Health, NASA, and the NSF. In all cases, the proposed budget for next year is far, far below any year of the previous quarter century.

460 7.9K 15K

Sarah Guest @sarahmoeba.bsky.social · May 30

Another bog friend #protistsonsky

1 4 49

Reposted by Sarah Guest

John Burns @burnsajohn.bsky.social · Mar 12

The inside of our net was coated with these tiny jelly balls. I asked @blancobercial.bsky.social if they were some kind of ctenophore, but he said (enthusiastically) "No! These are #Rhizaria!" He is holding a single cell here. #marinelife #protistsonsky

2 8 31

Reposted by Sarah Guest

Kenneth Dumack @dumack.bsky.social · May 23

Evidence for #recombination, and maybe #meiosis, in free-living #Rhizaria! I wish the results were clearer. As so often we raised more questions than we could answer :) If you are into #sex and the #meiosis-toolkit, this is an important read! #ProtistsOnSky link.springer.com/article/10.1...

9 41

Reposted by Sarah Guest

Hugh Ford @dictyostelium.bsky.social · May 21

New paper out in @pnas.org

We followed cells migrating along signalling gradients in 3D, and found they collectively behave as a living droplet - a self-propelling fluid that grows.

www.pnas.org/doi/10.1073/...

2 34 93

Reposted by Sarah Guest

bioRxivpreprint @biorxivpreprint.bsky.social · May 19

Myosin 2 drives actin contractility in fast-crawling species outside of the amorphean lineage https://www.biorxiv.org/content/10.1101/2025.05.16.654244v1

5 4

Sarah Guest @sarahmoeba.bsky.social · May 28

A quick craft project: hand-cut phase annuli from construction paper to fit an "adopted" microscope that was missing ph1 ph2 and ph3