Piotr Lukasik

@sympiotr.bsky.social

Researching the diversity, evolution, and roles of insect-microbe interactions at Jagiellonian University, Poland. Nature lover. Traveler. Photographer.

Thursday night I was lucky enough to tick off another photography milestone - documenting the moment when a cicada nymph molts its skin to reveal the adult within. For these smaller species the change is quick, they can anchor on a tree, molt and then go forth in 30 minutes #BugSky

16 shots of the two to three nymphs I was photographing, showing the process of how they discard their nymph stage shells. The shell initially cracks along a dorsal seam and the newly formed cicada pushes up through this crack, emerging at a 90° angle from the tree. From here they carefully invert themselves, a position in which they remain for a few minutes while their blood begins to flow around their new appendages. After a while their legs begin to twitch, and then using core strength that would put any human to shame they perform a full body curl, latch onto their old shell with their clawed feet and carefully pull out their abdomen. Now fully free of their former self they begin pumping blood into their wings, which quickly unfurl and flatten. Once everything has been inflated to the correct size they rest a bit more before beginning the arduous climb to a higher vantage point. At some point in the night they achieve flight for the first time in their life. Now active in the branches of the trees they emerged under they only have a short adult lifespan in which to reproduce and begin the whole cycle anew.

New #microbiome paper from our lab @ioes-ju.bsky.social! Unexpected host associations for Bartonellaceae - a bacterial family primarily known as mammalian pathogens. Striking #symbiont evolutionary trajectories, exemplified by a highly reduced, 158kb genome with no nutrient biosynthetic capacity!

Genome Biology and Evolution@genomebiolevol.bsky.social · 8mo ago

Ma, @annamichalik.bsky.social, Deng, Hu & @sympiotr.bsky.social discover the presence of Bartonellaceae bacteria in planthoppers, broadening the host spectrum of nonpathogenic Bartonellaceae. 🔗 doi.org/10.1093/gbe/evaf216 #genome #evolution

New preprint from our lab! We show that #Bartonellaceae bacteria, mostly known as mammalian #pathogens, also colonizes #planthoppers. The planthopper #symbionts typically resemble related ant symbionts in nutritional functions, but show a much greater breadth of #genome sizes and functions. 1/2

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bioRxivpreprint@biorxivpreprint.bsky.social · 11mo ago

Contrasting genomic trajectories of Bartonellaceae symbionts of planthoppers https://www.biorxiv.org/content/10.1101/2025.08.24.672000v1

NEW PAPER, JUST OUT! 👀 Insects from the '70s and '80s were already collecting microplastic, decades before the term microplastic even existed. 🤯 A thread on the surprising history of this pollutant and the incredible insect larvae that helped us uncover it. 🐛 Let's dive in! 🧵👇 1/x

Lead author Auke-Florian Hiemstra holds the oldest known caddisfly casing containing microplastic, dating to 1971. Photo: Liselotte Rambonnet.A caddisfly casing with pieces of blue microplastic, dating 1986. Photo: Auke-Florian Hiemstra

New preprint by our team @ioes-ju.bsky.social! Using custom multi-target amplicon sequencing on diverse pathogen-killed dipterans from Greenland, we find multiple #Entomophthora genotypes with notable host specificity, and reconstruct bacterial communities associated with the killed insects.

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bioRxivpreprint@biorxivpreprint.bsky.social · last yr.

Dissecting multitrophic interactions: the relationships among Entomophthora, their dipteran hosts, and associated bacteria https://www.biorxiv.org/content/10.1101/2025.03.20.644288v1

Thank you, @einsteinberlin.bsky.social, for recognizing the importance of raising concerns about scientific papers. Often, science sleuths face professional, personal, and legal threats. Awards like these are vital to acknowledging the significance of our work.

Einstein Foundation Berlin@einsteinberlin.bsky.social · last yr.

🏆 Research integrity consultant and image forensics expert @elisabethbik.bsky.social has uncovered fraudulent data in over 7,600 scientific papers and exposed the practices of ‘paper mills’ that produce counterfeit scientific articles. She is honoured with the €200K Individual Award. Congrats!

Hardly new info, but BSky should know: Warsaw's water quality is monitored by eight clams with magnets attached to their shells. If contamination in the water causes the clams to close, the magnets trigger an alarm and shut off the city's water supply. Thank you, little guardian molluscs. 🧪🌏🚰

A clam with a spring attached to the shell. The spring has a magnet placed above a sensor.