Johana Rotterova's Avatar

Johana Rotterova

@micrott.bsky.social

@JohanaProtists | Assistant Professor at Department of Marine Sciences University of Puerto Rico Mayagüez | MIC.Rott Lab | Protists | Symbioses in Marine Anaerobes | Microbial Interactions in Ciliates | www.microttlab.org | newPI

1,147 Followers  |  174 Following  |  62 Posts  |  Joined: 20.10.2023  |  1.8557

Latest posts by micrott.bsky.social on Bluesky

I can share a folder I have for my students! Will send a link.

16.02.2026 22:50 — 👍 1    🔁 0    💬 0    📌 0
MidSEC 2026

To my #protistsonsky and 🦑friends, I am co-organizing this meeting: "Midwater Science and Engineering Community" (MidSEC) Conference. If you work with or are interested in midwater protists (radiolaria, foram, deep water coccolithophores, etc) (or animals) it may be of interest to you!

midsec.info

06.02.2026 20:44 — 👍 12    🔁 6    💬 1    📌 0
Careers | MSU Jobs Careers | MSU Jobs

The Brown Lab at Mississippi State University seeks a Postdoctoral Research Associate in Phylogenomics. Applicants should have sequencing data analysis experience, preferably in Python/R. Details at: https://explore.msujobs.msstate.edu/cw/en-us/job/510010 #postdoc

10.01.2026 16:51 — 👍 1    🔁 3    💬 0    📌 0
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Environmental regulation of ciliates in corals: A secondary pathogen in coral disease www.sciencedirect.com/science/arti... #corals #protists #symbionts #holobiont #microbiome

03.12.2025 11:00 — 👍 11    🔁 3    💬 1    📌 0
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Rare microbial relict sheds light on an ancient eukaryotic supergroup - Nature The discovery of an unusual protist named Solarion arienae, which has a mitochondrial genome with some intriguing features, provides insight into the early radiation of eukaryotic groups.

Nature research paper: Rare microbial relict sheds light on an ancient eukaryotic supergroup

go.nature.com/486YtjW

20.11.2025 11:04 — 👍 45    🔁 13    💬 0    📌 2
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Beware, Solarion pops in between cat videos now. #ProtistsOnSky #MicrobeSky

29.11.2025 17:10 — 👍 9    🔁 2    💬 0    📌 0

I'm personally keen to not introduce new names when the original work/are valid. Marek's paper (and Disparia) was out as a preprint since May and the question could go both ways. Solarion + Meteora as Caelestes work well imo. But, I'm fan of Promethea and I think both papers are awesome! One love 😁

26.11.2025 13:47 — 👍 2    🔁 0    💬 0    📌 0

Sent!

20.11.2025 21:24 — 👍 1    🔁 0    💬 0    📌 0

When I've first seen the transformation under a microscope, the integration and disappearance of the flagellum, back then we had no idea what group of protists it could be, if it's even a eukaryote, it blew my mind. One can be seen in the Supplemental video 3. It keeps blowing my mind.

20.11.2025 01:57 — 👍 2    🔁 0    💬 0    📌 0
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Thank you! Well, but.. it IS a tiny ball, forming extrusome tentacles, when it is NOT a flagellate!

20.11.2025 01:54 — 👍 0    🔁 0    💬 0    📌 0
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✨ A study in nature.com from our Faculty at @unikarlova.cuni.cz reveals Solarion arienae, a rare #protist forming a newly identified eukaryotic supersroup Disparia. A unique window into early #eukaryotic cell #evolution. 🌍🔬👏

www.nature.com/articles/s41...

19.11.2025 16:03 — 👍 44    🔁 18    💬 0    📌 3
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Is it a flagellate? A tiny ball with tentacles? Contamination in my ciliate culture? NEW SUPERGROUP OF EUKARYOTES? Yes to all 4! Meet Solarion - just out in #Nature doi.org/10.1038/s415... Huge congrats to Marek Valt, Cepicka Lab & the star team! Very happy to be part of this project. #ProtistsOnSky

19.11.2025 21:38 — 👍 119    🔁 47    💬 5    📌 0

now i've seen everything... 😱
don't care what anybody says but #protists are cognitive

19.11.2025 13:45 — 👍 49    🔁 8    💬 4    📌 1
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THERKILDSEN LAB The Therkildsen Lab at Cornell University. Conservation Genomics and Molecular Ecology

Cornell University invites applications for a PhD in Evolutionary Genomics for Marine Conservation, starting Fall 2026. Interested candidates should contact Nina Overgaard Therkildsen at nt246@cornell.edu. More info: https://www.therkildsenlab.org/ #phd

15.11.2025 23:09 — 👍 1    🔁 2    💬 0    📌 0
Accueil | UMR SEBIO Accueil | UMR SEBIO

Join the GRACE project as a Postdoctoral Researcher in Evolutionary Genomics and Climate Resilience. Conduct genomic analyses on marine species to study responses to climate change. Apply by March 1st, 2026. More info: https://umr-sebio.fr #postdoc

15.11.2025 23:09 — 👍 3    🔁 4    💬 0    📌 0

Right?! Thank you, i still don't feel like i even deserve to be a pi..but i do have amazing students and im grateful for them! one of them hopefully going to cesky krumlov for genomics this january!

16.11.2025 14:18 — 👍 1    🔁 0    💬 1    📌 0
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Career Opportunities at the University of Hawai'i | University of Hawai'i

Come be my colleague at University of Hawaiʻi at Mānoa. We're hiring an assistant professor in Ocean Biogeochemical Modeling. 🌊

15.11.2025 12:05 — 👍 78    🔁 45    💬 1    📌 0

Wow, congrats!! I will definitely use it in my lectures, last time i told the students that the sponge door hasn't closed yet and to stay tuned! 😂

14.11.2025 16:11 — 👍 1    🔁 0    💬 1    📌 0
Assistant Professor in Marine Ecology The search will remain open until the position has been filled. First consideration will be given to applications received by December 12, 2025. Applications received after December 12, 2025 may be re...

Marine Ecologist tenure track job, here at URI. Come join a thriving research environment with a major focus on all things marine!

jobs.uri.edu/postings/15960

13.11.2025 14:26 — 👍 3    🔁 4    💬 0    📌 0

The University of Puerto Rico seeks candidates for a tenure-track Neuroscience faculty position starting August 1, 2026. Details: https://www.uprrp.edu/wp-content/uploads/2025/10/Tenure-Track-Faculty-Position-Announcement-Neuroscience-signedMGV.pdf. #job

09.11.2025 15:28 — 👍 0    🔁 2    💬 0    📌 0
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We are looking for a PhD student to work on an exciting plastid endosymbiosis in microbial eukaryotes. This position involves sampling, exciting microscopy such as CARDFISH, ExM and FIBSEM, single-cell transcriptomics and more. #protistsonsky 1/2

12.11.2025 09:50 — 👍 79    🔁 66    💬 2    📌 3
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Deep‐branching eukaryotes and early events in protist evolution The first eukaryotes evolved from their archaean ancestors in the early Proterozoic, likely ca. 2000–1800 million years ago (Mya). Their macroscopic multicellular descendants, such as plants, heterok...

onlinelibrary.wiley.com/doi/10.1111/...
#protistsonsky

10.11.2025 12:11 — 👍 34    🔁 15    💬 0    📌 0

9 days till registration closes!
bsky.app/profile/jlst...

06.11.2025 21:32 — 👍 3    🔁 3    💬 0    📌 0
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“Cellular Olympics” our catalog of freeky ultra fast cellular superhero’s is freely available “Ann Rev of microbiology”

www.annualreviews.org/content/jour...

This is a compilation of world’s fastest single cell organisms - enjoy this buffet of rare delightful protists with mind bending speeds. 🧪

24.10.2025 10:57 — 👍 114    🔁 41    💬 0    📌 1

Hi folks! Is anyone recruiting masters students that pay a livable stipend? I have an excellent senior who is an incredible researcher and seeking a position. She is top notch and really interested in mechanistic questions- currently working on Aiptasia, Astrangia and Nematostella.

21.10.2025 13:23 — 👍 5    🔁 6    💬 1    📌 0
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Structural and Spectroscopic Insights into Catalytic Intermediates of a [NiFe]‐hydrogenase from Group 3 Hydrogenases catalyze reversible H2 production and are potential models for renewable energy catalysts. Here, the full redox landscape of a group 3 [NiFe]-hydrogenase from methanothermococcus thermol....

F420 is a key redox carrier in methanogenic archaea, and it receives electrons from Group 3 [NiFe]-hydrogenases. Writing in @chemistryeurope.bsky.social Zebger and Wagner now characterize the hydrogenase from a marine methanogen by XRD, FTIR, Raman, and EPR spectroscopy 👌
doi.org/10.1002/cbic...

20.10.2025 08:48 — 👍 11    🔁 5    💬 1    📌 0

wohoooo!!!! 💥

20.10.2025 22:20 — 👍 1    🔁 0    💬 0    📌 0
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Database Release: PPSDB, a Linked Open Data Knowledge Base for Protist–Prokaryote Symbioses As the ecological and evolutionary importance of symbiotic interactions between protists (microbial eukaryotes) and prokaryotes (bacteria and archaea) is better appreciated, keeping an overview of th...

Database Release: PPSDB, a Linked Open Data Knowledge Base for Protist–Prokaryote Symbioses onlinelibrary.wiley.com/doi/10.1111/... #jcampubs

13.10.2025 15:20 — 👍 12    🔁 9    💬 0    📌 1
Welcome to the Breitbart Lab - Genomics We are modern virus hunters, using metagenomic sequencing to discover viruses in a wide range of environments and hosts. Have fun exploring the marvels of microbiology on this website!

🦠Join the legendary @viromegirl.bsky.social lab

Jobs in marine micro, virology & genomics
💻 Viral 'omics in seagrass
🧬 Marine microbial & bioinformatics
🧫 Vibrio phage + iron biogeochemistry
🎓 sea urchin–ciliate diseases

👉 www.marine.usf.edu/genomics/app...

#MarineVirology #Phagesky #Microbiome

12.10.2025 01:39 — 👍 19    🔁 20    💬 1    📌 1
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Pretty excited to share our new preprint!
Non-photosynthetic Plastid Replacement by a Primary Plastid in the Making
www.biorxiv.org/content/10.1...

10.10.2025 03:34 — 👍 91    🔁 45    💬 0    📌 3

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