CepickaLab
@CepickaLab
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LABORATORY OF DIVERSITY AND EVOLUTION OF ANAEROBIC PROTISTS We study the diversity and evolution of anaerobic protists at Faculty of Science, Charles University
Prague
Joined November 2023
New preprint from our lab: “Rare microbial relict sheds light on an ancient eukaryotic supergroup” by Marek Valt et al. introduces Solarion arienae, an interesting protist from newly characterized supergroup. Read the full preprint 👉
researchsquare.com
During the last decade, our understanding of eukaryotic evolution has increased immensely. Newly recognized eukaryotic supergroups have been established1–3, and the majority of enigmatic orphan...
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Happy to see this out!
Symbiont-housing structures are rarely studied in unicellular protists. Jerlström-Hultqvist et al. show that low-oxygen-adapted Anaeramoebae have symbiosomes positioning sulfate-reducing bacteria near hydrogenosomes. @jon_hultqvist @andrewjroger
https://t.co/RatjQBckFp
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A new paper out!
It was a pleasure to be part of this project and happy to see it published in the @ISMEJournal! We surveyed a huge dataset of #anaerobic #ciliates and focused on their #symbioses with #methanogenic #Archaea
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Vladimir Hampl and I review the latest on the origin of mitochondria and mitochondrion-related organelles:
link.springer.com
Mitochondria and related organelles—hydrogenosomes, mitosomes and other mitochondrion-related organelles (MROs)—are essential compartments in almost all eukaryotic cells. Although mitochondria are...
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Bit by bit toward the diversity of metopids: Description of the genus Pidimetopus n. gen. (Ciliophora: Armophorea) | Ondřej Pomahač, Daniel Méndez-Sánchez, Ivan Čepička #ciliates
https://t.co/AdBejYPlGJ
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Protodays2024 are almost over and as every year full of great talks and posters! Happy to add some input from our research including talks by @polakova_kate, @MajdaPavlatova , Marek Valt and Matyáš Soviš #Protodays #Protodays2024
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Finishing the first day of #Protodays with a poster session including posters of Aneta and Martina from our lab! Thanks to the organizers for making a great conference👏👏👏 #Protodays2024
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53rd Jírovec´s Protozoological Days just started! Great opening symposium about viruses in protistology sponsored by @protistologists including talks by @dinokaryon, Christopher Bellas, Pavel Plevka, Matthias Fischer, and Anna Koslová. Stay tuned! #Protodays #Protodays2024
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Check out some stunning Czech ciliates in our new paper about a scuticociliate species Loxocephalus luridus. Finally adding some molecular data for the type genus of the problematic order Loxocephalida! https://t.co/ygmu8UHKCr
onlinelibrary.wiley.com
The phylogenetic and taxonomic affinities of lineages currently assigned to the non-monophyletic ciliate order Loxocephalida Jankowski (1980) within subclass Scuticociliatia Small (1967) remain...
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Check out our new paper by Kotyk et al. about peculiar endobiotic ciliates from the hindgut of wood-eating cockroaches: Clevelandellidae
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Happy to see some of our work in the list of the most interesting newly described #microbial #eukaryotes of 2023! Thanks Lukáš V.F Novák for mentioning many of our beloved #anaerobic #protists. Let´s see what new discoveries the upcoming year will bring!
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#Protists double animal's biomass on earth. Despite their importance, our knowledge of these organisms is greatly hampered by the limited number of stable laboratory cultures. Read our call to action "The protist cultural renaissance" in @TrendsMicrobiol
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Novel Metopid "Castula specialis" was described with help of our lab members @pom55791 @DarthDaniousIM @Ivan_Cepicka Congratulations guys! Read more here: https://t.co/fnDpUSMumq
onlinelibrary.wiley.com
The morphology, morphogenesis, and molecular phylogeny of a new metopid ciliate, Castula specialis sp. nov., comprising three strains from geographically distant (China, Mexico, Czech Republic)...
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Anaeramoeba are really amazing protists. In the latest paper "Massive intein content in Anaeramoeba reveals aspects of intein mobility in eukaryotes" with @Ivan_Cepicka as coauthor you can read about the most intein-rich eukaryotic genomes so far. https://t.co/IE3cr77nsE
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Our PhD student Marek Valt working with the new JEM-F200 TEM during Transmission Electron Microscopy in Life Sciences course. Great piece of technology! 🔬 Thanks to @CzechAcademy @imgprague @LeicaMicro @JEOLEUROPE
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Interested in evolution of mitochondria? Check our newest paper co-authored by @Ivan_Cepicka, which nicely describes MROs of anaerobic amoebozoans. Read here (opensource):
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an anaerobic one
What's your favourite #protist? Magnificent protist image resource from Yana Eglit & @pjkeelinglab just out in @PLOSBiology
https://t.co/u2ESYybfUU
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Desulfobacter-related symbionts were found to be associated w Anaeramoebae enclosed in membrane invaginations and exposed to the outer environment (Jerlström-Hultqvist et al. 2023). We describe two distinct types of symbioses with prokaryotes previously unknown from Anaeramoebae.
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Anaeramoeba species are anaerobes living in anoxic, marine sediments and their mitochondria have been transformed into hydrogen-producing mitochondrion-related organelles (MROs), which form a cluster with symbiotic prokaryotes in the cytoplasm.
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