Mystery Radiolarian? - Found this in a sample from the south Pacific about 10 years ago - Still asking if anyone knows its name? #protistsonsky

Wishing you a smooth and speedy recovery! If the sample was taken from moss, then Difflugia manicata is most likely Heleopera lucida.

You are welcome! 🙂

Both groups of protists, amoebae and ciliates, contain large species. Therefore, based on size alone, it could be either an amoeba or a ciliate.

A very interesting video! I believe this is a ciliate rather than an amoeba. However, a more accurate identification would be possible if we had footage showing the organism’s active movement.

I’m glad to hear that you like the magazine! We recently went through a server migration, and some technical issues may have occurred during the transition. The issue will be resolved shortly.

My book has got a great endorsement from Chris Packham: "This clever and immensely resourceful book is an overdue gem". There's also a few pages up on the website too! It's up for pre-order here with publication set for January pelagicpublishing.com/products/pan...

📣 It’s a #SignedBookGiveaway! 🔔

Simply like and repost this message to enter.

🦋 🐛 🍁 🐜 🦢 🍄 🌳 🐝 🐞
🦔 🦎 🌸 🦜 🦒 🪱 🦉 🐦‍⬛ 🌿

Three winners will be randomly selected at the end of #PublicationDay on 6 Jan:

📖 ✍️ 📦 on Bluesky
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#NatureWithin @pelagic.bsky.social

Andy Chandler-Grevatt sitting at a table with piles of Moss Safari books. He is signing one of them. There are stickers, badges and bookmarks on the table in front of him.

Andy Chandler-Grevatt looking excited holding his first copy of the Moss Safari book he authored.

A box of books called Moss Safari

Very excited yesterday when a box of Moss Safari books were delivered!

So today was signing the complementary copies with some added Moss Safari goodies to be sent out to those who helped me with the book.

Available from pelagicpublishing.com/products/mos... and book shops. 25% off code: MOSS25

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...

Eleutheroschizon duboscqi is a marine protococcidian that parasites the polychaete Scoloplos arminger🪱 . It grows epicellularly, enclosed in a two-membrane parasitophorous sac derived from the host cell, that ends in a protein-rich tail #Midweekmicrobe
📷 Valigurová et al. 2015

Why do some planktonic protists develop a gelatinous matrix? We suggest that this original adaptation is a strategy to cope with ocean oligotrophy: doi.org/10.1111/1462...
Led by @n-llopis-m.bsky.social, and thanks to all co-authors, I'm very happy to finally see it out!
#protistsonsky

This is the first time I’ve seen a starfish larva in samples from Cromer Pier, so I’m super excited. This is probably Asterias rubens and this is a bipinnaria stage larva. I’ve photostacked the images, it’s not perfect, but it allows us to see all the bits of this very 3D larva. #plankton 🦑

If you can't be with the forams you love, love the forams you're with #Ammonia

A hand drawn black and white illustration of the dinoflagellate Dinophysis tripos

A hand drawn black and white illustration of the dinoflaggelate Ceratium hexanthum. The image has been cropped and shows the armoured plates and upper portion of the horns

#OTD in 1868 Elsie Sexton was. Born Alice Wilkins Tring, Elsie studied at the Truro School of Art before moving to Plymouth. Through her husband, Louis, she met Director of the MBA Dr Edgar Allen and began illustrating for his scientific publications, eventually publishing her own research in 1908.

graphical abstract of the linked paper

New #ISEPpapers! Diplonemid #protists possess exotic endomembrane machinery, impacting models of membrane trafficking in modern and ancient eukaryotes www.sciencedirect.com/science/arti... by Kristína Záhonová et al., @dackslabecb.bsky.social

🔬Over a century ago, Gulielma Lister used her stunning illustrations to bring attention to slime molds—long before they captured the imagination of today’s photography community.

🧪Full article in the first issue: stefanluketa.com/amoeba-discovery

#sciart #slimemold #art #systematics #protistsonsky

Tuffen West's wonderful artwork- plate 3 in Hogg's 'The Microscope...' 1867 ed. Actual size 10 x 16 cm. More Tuffen West: www.openscience.fr/Tuffen-West-...

Happy to have played a small part in this. Prometheid is a proposed supergroup that contains previously deep orphan lineages.
www.biorxiv.org/content/10.1...
#protistsonsky

Differential apicomplexan presence predicts thermal stress mortality in the Mediterranean coral Paramuricea clavata An analysis of the microbiome of the Mediterranean coral Paramuricea clavata reveals that its microbial community, specifically microeukaryotes, plays a crucial role in its response to thermal stress...

Found out that our publication on the differential abundance of corallicolids in P. clavata was a #TopViewedArticle in Environmental Microbiology last year 🙌 #Protists #Corals #ClimateChange

First study from the lab is out! We describe ApuRs, a new family of microbial rhodopsins unique from apusomonads. ApuRs represent the first anion-conducting rhodopsin channels that can be controlled by UV light, offering potential as new optogenetic tools. #protistsonsky
doi.org/10.1101/2025...
👇

If you ever need a safari guide through the world of moss — that’s @mosssafari.bsky.social! Dive into an interesting interview and discover how microscopy can become a bridge to broader public education. 🔬📖🧪

Interview in the first issue: stefanluketa.com/amoeba-discovery

#protistsonsky #microsky

On Per Theodor Cleve (1840-1905) the amazing part-time protistologist: ejournals.eu/en/journal/a...
#protistsonsky

Happy birthday! 🥳 My birthday is tomorrow! 🤓

When the day is grey and rainy, the best kind of inspiration comes from old taxonomic books filled with beautiful illustrations. Here’s a plate of slime molds by Ernst Haeckel published in 1904 – a timeless blend of art and science. 🧪📖🔬

#protistsonsky #mevosky #art #systematics #taxonomy

🚨 3-year Postdoc Opportunity! Join me and the Aquatic Ecosystem Analysis group @UniKoblenz. 🔬 Microbial #ecology, #protist predation, #algae #plankton & flexibility | 💻 Environmental -omics | 🌊 Rivers 📅 Apply by May 15 | 🔗 kennethdumack.de | tinyurl.com/dumack
Please share! #MicroSky #ProtistsOnSky

Comparative Genomics Supports Sex and Meiosis in Diverse Amoebozoa Abstract. Sex and reproduction are often treated as a single phenomenon in animals and plants, as in these organisms reproduction implies mixis and meiosis

Another paper: doi.org/10.1093/gbe/...

Sexual reproduction is a poorly studied phenomenon in protists. There are several primitive forms of sexual reproduction, making it difficult to determine when they reproduce sexually and when asexually. Testate amoebae are a good example of such a case.

The Foraminifera.eu Physical Collection YouTube video by foraminifera.eu

Listen to my talk on our physical Foraminifera Collection on youtube at: www.youtube.com/watch?v=WX3K...
#foraminifera #microfossils #fossil #MarineLife #paleontology #MarineScience #palaeontology #shell #fossils

@zlatogursky.bsky.social, a leading researcher of heliozoans, shared a gem in a recent exclusive interview: these underrated protists have a rare trait that could open doors in broader biological research. Don’t sleep on the heliozoa.

🔬🧪 #protistsonsky #microsky #evosky #mevosky