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Yash Pardasani

@thealgaeman.bsky.social

300 followers 360 following 55 posts

PhD student Uppsala University | Burki lab | Stalking #Paulinella amoebas to understand plastid origin (primary endosymbiosis) 🧬🔬| @ERC_Research project PlastidOrigin https://www.burki-lab.net/yash-phd-student.html

www.burki-lab.net

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Yash Pardasani @thealgaeman.bsky.social · Aug 18

The first paper from my PhD is out now! doi.org/10.1111/jeu....

We describe a new photosynthetic #Paulinella species from a brackish beach in British Columbia 🇨🇦

Big thanks to the co-authors Maia Palka and @alive-in-the-ocean.bsky.social, and my supervisor @fburki.bsky.social

#protistsonsky

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Reposted by Yash Pardasani

Sally Warring @sallywarring.bsky.social · 2d

A new preprint from us using a single-cell genome pipeline to investigate diversity of uncultured Bodo spp. flagellates.

We isolated 7 Bodo spp. cells from a single environmental sample and show that they represent 3 Bodo sp. each with a unique species of bacterial endosymbiont. #protistsonsky

Single-cell sequencing reveals unexpected genetic diversity among Bodo spp. flagellates and their bacterial endosymbionts

Bodo is a cosmopolitan genus of free living bacterivorous single-celled flagellates in the class Kinetoplastea. Members of genus Bodo are considered the closest free-living relatives to the parasitic ...

www.biorxiv.org

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Reposted by Yash Pardasani

Jelena Godrijan 🫧❾🌊🦋 @godi.bsky.social · 3d

⚠️New paper ➡️ isolating >600 freshwater microbes using dilution-to-extinction and low-nutrient, lake-mimicking media.

🤯Expands cultured diversity to ~70 % of detected genera and enables physiological studies of streamlined oligotrophs.

🔗 www.nature.com/articles/s41...
#protistsonsky

Bringing the uncultivated microbial majority of freshwater ecosystems into culture - Nature Communications

A large fraction of aquatic bacteria remains uncultured. Here, the authors cultivated 627 strains of abundant freshwater bacteria from 14 European lakes, thus generating a collection that includes many previously uncultured, oligotrophic bacteria that may serve as model organisms.

www.nature.com

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Reposted by Yash Pardasani

John Burns @burnsajohn.bsky.social · 6d

I've seen this several times: when Acantharians get big enough they like to eat tintinnids. And they always orient with the lorica opening pointed in: like they are slurping up a little jello shot. That glass house can't protect you from these weird predators little ciliate! 🦑 #protistsonsky

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Reposted by Yash Pardasani

Flora Vincent @floravincent.bsky.social · 9d

Dear all, registration for the upcoming EMBO/EMBL Symposium on "the cellular mechanics of symbiosis" is now OPEN 🤩 ! Feel free to register ! www.embl.org/about/info/c...
#EESSymbiosis #ProtistsOnSky #SymbioSky
@hassansalem.bsky.social @berasymbionts.bsky.social @embl.org

The cellular mechanics of symbiosis: sensing friend from foe

www.embl.org

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Reposted by Yash Pardasani

Heike Zimmermann @heikezimm.bsky.social · 8d

Are you interested in how climate change is reshaping #Arctic #marine ecosystems and if the risks associated with harmful algal blooms and marine #phycotoxins is increasing? 🧬❄️🌊

Come, join us in beautiful and vibrant Copenhagen -
2 weeks left to apply!

#protistsonsky #ancientDNA #HAB

Heike Zimmermann @heikezimm.bsky.social · Sep 5

📣We seek a talented and enthusiastic postdoc - 3 yrs

Join our team at #GEUS, and use environmental genomics applied to marine sediment cores from the #Arctic to decipher past dynamics of toxic #phytoplankton species. 🌊❄️🧬

#protistsonsky #ancientDNA #PHATE

candidate.hr-manager.net/ApplicationI...

Postdoc in marine environmental DNA/sedimentary ancient DNA

The Department of Glaciology and Climate at the Geological Survey of Denmark and Greenland (GEUS) is looking for a talented and enthusiastic postdoctoral resear

candidate.hr-manager.net

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Reposted by Yash Pardasani

Julie Boisard @protistsforthewin.bsky.social · 11d

Now completely published :)
Really proud of this paper led with Karla at @cstairs.bsky.social lab.
doi.org/10.1093/isme...

Anaerobic breviate protist survival in microcosms depends on microbiome metabolic function

Abstract. Anoxic and hypoxic environments serve as habitats for diverse microorganisms, including unicellular eukaryotes (protists) and prokaryotes. To thr

doi.org

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Reposted by Yash Pardasani

Kirsty Wan @micromotility.bsky.social · 14d

Love #protists? Then you'd love this! Beautiful collection of hand-drawn critters represented here at the Oxford-Japan symposium on ethological dynamics in diorama environments sites.google.com/view/oxford-... #ciliates #testateamoeba #diatoms

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Caitie McCafferty @computingcaitie.bsky.social · 15d

I am excited to share our new preprint on the CAGE complex, a mysterious hollow protein complex that I first saw years ago while surveying Tetrahymena ciliary lysate www.biorxiv.org/content/10.1... #cilia #protistsonsky 🧬🧪

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John Burns @burnsajohn.bsky.social · 18d

Some little circus performers. #protistsonsky

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Yash Pardasani @thealgaeman.bsky.social · 20d

Excited to share our third heterotrophic #Paulinella culture from Haida Gwaii, Canada! :)

#ProtistsOnSky

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Reposted by Yash Pardasani

Jelena Godrijan 🫧❾🌊🦋 @godi.bsky.social · 21d

New preprint 🌊🫶
"A diverse community constitutes global coccolithophore calcium carbonate stocks"
Three large coccolithophores together hold about half of the global CaCO₃ stock!
G. huxleyi <10%
➡️ climate models need to include this broader diversity!
📄 doi.org/10.1101/2025...
#protistsonsky

The morphology of notable coccolithophore species. The Scanning Electron Microscopy images are coloured by the ratio between the cellular organic and inorganic carbon (CIC:COC) contents.

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Reposted by Yash Pardasani

Hanna Johannesson @hannajohannesson.bsky.social · Sep 7

We have several open positions in my group, funded from the ERC Grant on the Early Sequestered Germline of Fungi. We search broadly for applicants at both PhD and master-level, with a dedicated interest in fungal evolutionary biology. Please forward and RT!
Find the positions here: su.varbi.com

Lediga jobb vid Stockholms universitet

Jobb

su.varbi.com

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Reposted by Yash Pardasani

Nicole Coots @nicolecoots.bsky.social · 26d

found this lil guy in a sand sample recently 😍🦑
#protistsonsky

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Yash Pardasani @thealgaeman.bsky.social · 25d

Thanks! :)
I didn’t know that there are no fossil records of Euglyphids!

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Yash Pardasani @thealgaeman.bsky.social · 25d

Thanks Nicole!

Reposted by Yash Pardasani

Thibaut Brunet @thibautbrunet.bsky.social · 29d

New short paper from our lab @currentbiology.bsky.social, in which we discover of a new mode of cell motility for choanoflagellates: flagellar gliding. www.cell.com/current-biol... - A 🧵

Flagellar gliding in choanoflagellates

Freire-Delgado and Brunet discover a new mode of cell motility in choanoflagellates, the closest relatives of animals. Under mild confinement, choanoflagellate move over surfaces without cell deformat...

www.cell.com

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Reposted by Yash Pardasani

Geology Johnson @geologyjohnson.bsky.social · 26d

#FossilFriday an SEM image of a 1.4 billion year old #acritarch. The first image shows you the surface topography. The other images are pseudo x-rays showing the internal structures. I figured out how to do these tiny x rays on Weds, it's going to be really useful in future. #geology #paleontology

Grey scale microscope photo of a tiny fossil that looks like a round wrinkly Pastry. The fossil is about 0.07 mm across.

Grey scale microscope photo of a tiny fossil that looks like a round wrinkly Pastry. This image uses x rays to show the internal structure. The fossil is about 0.07 mm across.

Grey scale microscope photo of a tiny fossil that looks like a round wrinkly Pastry. This image uses x rays to show the internal structure. This version has lower contrast than the previous x rays image. The fossil is about 0.07 mm across.

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Yash Pardasani @thealgaeman.bsky.social · 26d

Looks very cool!

Yash Pardasani @thealgaeman.bsky.social · 26d

Yes definitely!

Yash Pardasani @thealgaeman.bsky.social · 26d

Thanks so much Geoff! These ones grow a bit slow but the other culture we have is a fast grower. I am currently bulking up all of them for molecular data :)

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Yash Pardasani @thealgaeman.bsky.social · 27d

I have also seen bigger Paulinella (30-40 micron) in some of my other samples.
I was wondering if you have seen fossils of Paulinella or any Euglypha in your samples?

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Yash Pardasani @thealgaeman.bsky.social · 27d

Thanks! From California by Fabien, I also have the HG growing, will share the picture soon :)

Yash Pardasani @thealgaeman.bsky.social · 27d

7-9 micron in length and 4-5 micron in width

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Yash Pardasani @thealgaeman.bsky.social · 27d

Our 2nd heterotrophic #Paulinella culture!
Really proud of this one. After days at the microscope picking cells, I finally got it growing happily :)

#protistsonsky

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Reposted by Yash Pardasani

Qing (Andie) Zhang @zqing.bsky.social · 28d

Did you know tiny algae can "skate" within Arctic sea ice? ⛸️ Our new study in @pnas.org reveals the secret life of ice diatoms: they are actively gliding to navigate the ice! This adds a new dimension to the sea ice ecosystem, revealing an active, dynamic ecological niche. @prakashlab.bsky.social

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