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Johana Rotterova

@micrott.bsky.social
1.2K followers 209 following 76 posts

@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

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Johana Rotterova @micrott.bsky.social · 21/09/2026
Last day to submit abstract to #ASLO2027! Check our session on Aquatic Deoxygenation and Microbes Across Domains of Life. 📅 Deadline: Sept. 21 🔗 aslo.org/san-juan-2027/ #ProtistsOnSky #SymbiosisSky #MicroSky #deoxygenation #bacteria #archaea
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Johana Rotterova @micrott.bsky.social · 26/06/2026
Thank you, lab, for another beautiful semester with you and all your protists, symbionts, urchins, manatees, oysters, sargassum, and corals. ❤️✨🦠🧫🦔🐘🦪🌿🪸 💚
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Johana Rotterova @micrott.bsky.social · 29/11/2025
Beware, Solarion pops in between cat videos now. #ProtistsOnSky #MicrobeSky
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Johana Rotterova @micrott.bsky.social · 20/11/2025
Thank you! Well, but.. it IS a tiny ball, forming extrusome tentacles, when it is NOT a flagellate!
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Johana Rotterova @micrott.bsky.social · 19/11/2025
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
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Johana Rotterova @micrott.bsky.social · 09/10/2025
Five years later, I have my own lab. In Puerto Rico. And guess who's here!!! During one of our first lab field trips, we sampled a hypersaline shallow lagoon. Yes, Spirorhynchus was in there. Also by our dock. Trying to get in the lab?! We have welcomed him in and are interviewing his tufty friends!
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Johana Rotterova @micrott.bsky.social · 09/10/2025
One year later, in Beinart Lab @symbiosisrox.bsky.social, I got an incredible opportunity to join Joan Bernhard & Ginny Egdcomb on another cruise to SBB and pulled Spirorhynchus out of its cosy stinky home myself (well, watched the A-frame operator do it). Best bday (shared with the captain) EVR!!
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Johana Rotterova @micrott.bsky.social · 09/10/2025
The only paper I found showing micrograph of Spirorhynchus was Joan Bernhard's Nature paper 'Santa Barbara Basin is a symbiosis oasis' from 2000. A couple years after seeing it, to my amazement, Joan went to SBB again and brought a sample. It was still there!! www.nature.com/articles/47476
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Johana Rotterova @micrott.bsky.social · 09/10/2025
Well, yes way! It looks just like the drawing, over 110 years old. When I first saw a live cell in a saltmarsh sample in Cape Cod, over 10 years ago, I couldn't contain my happiness. It exists! Then, we found it again in several sites in Rhode Island with @symbiosisrox.bsky.social!
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Johana Rotterova @micrott.bsky.social · 09/10/2025
When I first saw the drawing of Spirorhynchus in da Cunha, 1915, isolated from Brazilian Manguinhos, I thought nothing can really look like that - ectosymbionts organized in tuft balls spiralling around the cells? No way! #ProtistsOnSky #MicroSky
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Johana Rotterova @micrott.bsky.social · 09/10/2025
New paper out! 💌🔬Spirorhynchus verrucosus is a Muranotrichean and its sister has been livin' in the deep sea Santa Barbara Basin since the 90's! See them TUFTS!! Wonderful work of B Bourland & Cepicka Lab, R Beinart, & J Bernhard enabling deep sea sampling. Read h1.nu/spiror #ProtistsOnSky #MicroSky
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Johana Rotterova @micrott.bsky.social · 08/10/2025
With all the craziness in the world, good lab news bring real joy.💚🪇 With Breitbart's Lab help, long lab hours & determination not to give up, Gina has established a culture of the coral-eating Philaster!🪸🧫🔬I'm so proud of her!🥇 @gfullller.bsky.social @miapi314.bsky.social #ProtistsOnSky #MicroSky
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Johana Rotterova @micrott.bsky.social · 21/05/2025
Job Alert - please RT! Tenure-track Assistant Professor position in Physical Oceanography at UPRM just opened! Candidates with expertise in coastal & shelf-scale processes, coastal ocean modelling, marine engineering, open-ocean research are encouraged to apply. See more at tinyurl.com/4eaf8rfr
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Johana Rotterova @micrott.bsky.social · 06/02/2025
So.. I really hope NCBI GenBank is not working just.. very temporarily and for unrelated reasons.
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Johana Rotterova @micrott.bsky.social · 14/12/2024
Farewell, John! Thank you for the awesome visit and let's get that rad bucket of gold! @burnsajohn.bsky.social
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Johana Rotterova @micrott.bsky.social · 09/12/2024
CIMA & UPRM students, our second guest seminar is TODAY at 3:30 pm in CCRI/online! See you all there! Jeremy Wideman, ASU, Proteómica espacial de protistas: localización de miles de proteínas en compartimentos celulares🔬🧬🧫🧪🏝️ (dm me if you haven't received link) #ProtistsOnSky @evocellbio.bsky.social
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Johana Rotterova @micrott.bsky.social · 06/12/2024
CIMA & UPRM, see you all today at 2 pm in CCRI or online! (dm me if you haven't received the link): John Burns, Bigelow Laboratory for Ocean Sciences – Viernes 6 a las 2:00 - La visión generalista de la forma y la función en la vida eucariota 🔬🧬🧫🧪🏝️ #ProtistsOnSky #MicroSky @burnsajohn.bsky.social
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Johana Rotterova @micrott.bsky.social · 04/12/2024
PLEASE SHARE: Seeking a highly motivated PhD student interested to study microbial interactions in hypoxic marine environments. Come join us at the beautiful Isla Magueyes, surrounded by mangrove keys, reefs, and lagoons. Read more & apply via www.microttlab.org #ProtistsOnSky #MicroSky #SymbioSky
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Johana Rotterova @micrott.bsky.social · 13/11/2024
Fun sampling mangrove sediments with my students today! Logistics difficulty: 0/10 - we literally just walked down the lab, as Isla Magueyes is surrounded by mangroves all around. Love the island!
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Johana Rotterova @micrott.bsky.social · 13/12/2023
New case of alternative genetic code discovered! UAR reassignment in Palmarella but a standard code in its closest relatives. Our new paper with single cell #transcriptomics in APM #ciliates just out! doi.org/10.1016/j.ym... #ProtistsOnSky #protists #phylogenomics #geneticcode #anaerobes
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