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So happy to share our new paper out now in @natmicrobiol.nature.com! We establish Pirsonia-Coscinodiscus as a model pathosystem and uncover how this tiny parasite infects and kills bloom-forming marine diatoms 🌊🦠 rdcu.be/fuQyF

Cyclospora 👀 #protistsonsky #apicomplexans

It is always alarming to read about the effects of marine heatwaves 💔 In 2025, toxin-producing dinoflagellate blooms caused mass mortality across marine organisms, linked to a new Karenia species, K. cristata (not even known to bloom in Australia before!) rdcu.be/fsKE4

A catastrophic marine mortality event caused by a complex algal bloom including the brevetoxin producer Karenia cristataNature Ecology & Evolution - Genomic characterization and toxicity assays identify Karenia cristata as a brevetoxin-producing species that is the dominant component of the prolonged microalgal...rdcu.be

"I hope that this parasite will ‘stick’ to some of you as well, so that you too can admire the heart-shaped, dividing Giardia trophozoites through your microscopes." 🫶 #protistsonsky rdcu.be/fsBia

Stuck on you GiardiaNature Microbiology - Staffan Svärd reflects on his 30-year relationship with Giardia, which has stayed on his mind in a manner reminiscent of its adhesive trophozoite form.rdcu.be

Wow, another independent transition to parasitism + loss of photosynthesis/convergent plastid reduction in the chrompodellids! So cool @protistwtmostest.bsky.social!