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Ira Maegele

@iramaegele

PhD candidate @pawelburkhardt lab @MSarsCentre @Uib former lab manager at COS Heidelberg ctenophore & cnidarian lover

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13.11.2024
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Latest posts by Ira Maegele @iramaegele

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We are excited to share that we are hosting a hands-on course on "Electron Microscopy of Marine Environmental Samples" πŸ”¬πŸŒŠ
πŸ“Naples, Italy πŸ—“οΈ 8th-11th of April 2026
If you are interested, check the program below!
Registration is open until the 12th of February. We look forward to seeing you there!

20.01.2026 16:32 πŸ‘ 22 πŸ” 9 πŸ’¬ 1 πŸ“Œ 2

Congrats Inés et al! Beautiful paper 🀩

17.12.2025 07:19 πŸ‘ 6 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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The curious case of the comb jelly, where we described a comb jelly with the ability to reverse its development to an earlier stage of life, is now also available at #spotify 🀩 #ctenophores πŸͺΌβͺ

open.spotify.com/episode/6c2O...

with @joanjsoto.bsky.social @msarscentre.bsky.social

09.12.2025 14:02 πŸ‘ 35 πŸ” 10 πŸ’¬ 1 πŸ“Œ 1
Top:  The phylogenetic position of Nematostella and localization of Vasa2 +/Piwi1+ cells within the juvenile polyp body plan. (A) Simplified phylogenetic tree highlighting the phylogenetic position of the sea anemone Nematostella vectensis and other animal taxa relevant for this study. All animal silhouettes are licensed under CC0,1.0 Universal Public domain and taken from https://www.phylopic.org. (B–D) Schematics showing the localization of Vasa2+/Piwi1+ cells in a juvenile polyp, depicted in longitudinal (B) or cross-section (C, D). (E) Schematic representation of the multipotent, Vasa2+/Piwi1+ stem/progenitor cell population and a simplified summary of their germinal and somatic progeny. (F) Schematics of cell cycle phases, highlighting the incorporation of EdU during S-phase (black line) and the phosphorylation of Histone H3 (pH3+) during metaphase. Bottom: Confocal image of two Vasa+/Piwi+ stem-like cells in the inner epithelial folds of the sea anemone Nematostella vectensis. Immunolabelling of mOrange2-Piwi1 fusion protein (yellow) in a transgenic knock-in line combined with nuclear stain (white). Image credit: Paula MiramΓ³n-PuΓ©rtolas.

Top: The phylogenetic position of Nematostella and localization of Vasa2 +/Piwi1+ cells within the juvenile polyp body plan. (A) Simplified phylogenetic tree highlighting the phylogenetic position of the sea anemone Nematostella vectensis and other animal taxa relevant for this study. All animal silhouettes are licensed under CC0,1.0 Universal Public domain and taken from https://www.phylopic.org. (B–D) Schematics showing the localization of Vasa2+/Piwi1+ cells in a juvenile polyp, depicted in longitudinal (B) or cross-section (C, D). (E) Schematic representation of the multipotent, Vasa2+/Piwi1+ stem/progenitor cell population and a simplified summary of their germinal and somatic progeny. (F) Schematics of cell cycle phases, highlighting the incorporation of EdU during S-phase (black line) and the phosphorylation of Histone H3 (pH3+) during metaphase. Bottom: Confocal image of two Vasa+/Piwi+ stem-like cells in the inner epithelial folds of the sea anemone Nematostella vectensis. Immunolabelling of mOrange2-Piwi1 fusion protein (yellow) in a transgenic knock-in line combined with nuclear stain (white). Image credit: Paula MiramΓ³n-PuΓ©rtolas.

How do animals with lifelong growth modulate cell #proliferation? @eudaldpascual.bsky.social @ktgarschall.bsky.social @prhsteinmetz.bsky.social show that starvation induces G1/G0 #CellCycle arrest in Vasa2+/Piwi1+ #SeaAnemone cells; cycle re-entry is TOR-dependent @plosbiology.org πŸ§ͺ plos.io/48J2o6P

09.12.2025 17:35 πŸ‘ 17 πŸ” 11 πŸ’¬ 0 πŸ“Œ 0
InΓ©s Fournon Berodia, a young woman wearing a beige jacket and burgundy pants, presents a slide on a screen. It reads "Meet the sea anemone Nematostella vectensis" and shows pictures of pink sea anemones half-buried in sand.

InΓ©s Fournon Berodia, a young woman wearing a beige jacket and burgundy pants, presents a slide on a screen. It reads "Meet the sea anemone Nematostella vectensis" and shows pictures of pink sea anemones half-buried in sand.

Ruth Styfhals, a young woman wearing a green sweater, presents a slide on a screen in front of an audience. The audience is seen from behind at the forefront of the picture. The slide reads "Ctenophores: the oldest animals?" on a bright blue background. On the the left-hand side of the slide, we can see a photograph of a ctenophore or comb jelly - a gelatinous, transparent marine animal.

Ruth Styfhals, a young woman wearing a green sweater, presents a slide on a screen in front of an audience. The audience is seen from behind at the forefront of the picture. The slide reads "Ctenophores: the oldest animals?" on a bright blue background. On the the left-hand side of the slide, we can see a photograph of a ctenophore or comb jelly - a gelatinous, transparent marine animal.

Congratulations to @inesfournon.bsky.social and @ruthstyfhals.bsky.social on their amazing talks at the very first BIO-Early Career Community Conference at @unibergen.bsky.social ✨ We are proud to support this fantastic initiative that brought our local community of young scientists together πŸ‘

04.12.2025 15:49 πŸ‘ 18 πŸ” 4 πŸ’¬ 0 πŸ“Œ 0
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Interested in a #PhD with neuroendocrine and bioimaging focus? Check out our @swbiodtp.bsky.social project 'Creating a functional map for brain-gut signalling in a simple worm', with @alexdcorbett.bsky.social and CASE partner Cairn Research Ltd. Application deadline Wednesday 3rd December.

11.11.2025 15:49 πŸ‘ 10 πŸ” 9 πŸ’¬ 1 πŸ“Œ 2
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It’s such a joy working with these beautiful animals 😍😍
Huge thanks to @alexandrejan.bsky.social for capturing my gorgeous little creatures!
Can’t wait to share more cuke science and photos soon β€” stay tuned!
@msarscentre.bsky.social

18.11.2025 11:27 πŸ‘ 17 πŸ” 4 πŸ’¬ 0 πŸ“Œ 1

We are welcoming a new critter at the Centre - the Norwegian red sea cucumber! These colorful echinoderms will be featured in @emclaereboudt.bsky.social's #MSCActions project on chemosensation πŸ§ͺ Of course, they had a moment in the spotlight with our in-house photographer @alexandrejan.bsky.social ✨

18.11.2025 13:01 πŸ‘ 20 πŸ” 6 πŸ’¬ 0 πŸ“Œ 0
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Happy #worldjellyfishday πŸͺΌ
Here is a juvenile Chrysaora colorata, one of my favourite species of scyphomedusa, native to the Californian coast.

03.11.2025 20:54 πŸ‘ 12 πŸ” 3 πŸ’¬ 0 πŸ“Œ 0
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Tiny sea cucumbers, big mysteries! πŸͺ±
Out sampling for my MSCA project SensHolo at the @msarscentre.bsky.social, at the University of Bergen, πŸ‡³πŸ‡΄β€” exploring how these mini echinoderms sense their world.
Plus a few bonus echinoderms! 🌊✨

20.10.2025 10:32 πŸ‘ 26 πŸ” 5 πŸ’¬ 0 πŸ“Œ 0
Drawing of various Ctenophore anatomies showing the diversity of the phylum. center/front, top left, and right are lobate ctenophores, center/back is a beroid or nuda ctenophore, center/right is a cydippid or tentacled ctenophore, and bottom/left is a benthic ctenophore

Drawing of various Ctenophore anatomies showing the diversity of the phylum. center/front, top left, and right are lobate ctenophores, center/back is a beroid or nuda ctenophore, center/right is a cydippid or tentacled ctenophore, and bottom/left is a benthic ctenophore

A drawing of the Blood belly comb jelly ctenophore (comb jelly) which is known for its stricking red coloration that helps it live in the deep sea

A drawing of the Blood belly comb jelly ctenophore (comb jelly) which is known for its stricking red coloration that helps it live in the deep sea

Happy Ctenophore day! Its a perfect day to celebrate such a small yet beautifully diverse phyla that comes in a wide array of shapes and colors. #Ctenophoreday

04.10.2025 13:38 πŸ‘ 50 πŸ” 21 πŸ’¬ 3 πŸ“Œ 2

incredible artwork 🀩

05.10.2025 11:54 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Amazing pictures, Alex! As always 😍

05.10.2025 11:52 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Happy Ctenophore Day!
These glowing ocean drifters look like jellyfish but aren’t! They’re comb jellies, shimmering creatures that light up the sea with rows of beating cilia πŸ’™πŸŒˆ
Which species can you identify? πŸ‘€ Most are raised in @pawelburkhardt.bsky.social lab
#CtenophoreDay #CombJelly #Ctenophore

04.10.2025 18:21 πŸ‘ 1835 πŸ” 299 πŸ’¬ 44 πŸ“Œ 12
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HAPPY CTENOPHORE DAY (part II).

A full bucket of ctenophores for Ctenophore day - time to shimmer🌈🌊✨

Please watch till end: Mnemiopsis & Pleurobrachia included.

Alexandre @alexandrejan.bsky.social filmed and caught this ctenophore at the same time @msarscentre.bsky.social #ctenophores #GoPro

04.10.2025 17:08 πŸ‘ 27 πŸ” 5 πŸ’¬ 0 πŸ“Œ 0
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HAPPY CTENOPHORE DAY (part I).

The fjords around Bergen are full with Mnemiopsis right now. Movie by the amazing @alexandrejan.bsky.social @msarscentre.bsky.social #ctenophores #GoPro

04.10.2025 13:16 πŸ‘ 35 πŸ” 9 πŸ’¬ 1 πŸ“Œ 0

Excited to share our new work on the 3D architecture of the ctenophore aboral organ!

We explored its remarkable cellular diversity and integration with the syncytial nerve net, uncovering connectivity and insights into the evolution of sensory complexes.

www.biorxiv.org/content/10.1...

28.06.2025 13:03 πŸ‘ 45 πŸ” 17 πŸ’¬ 0 πŸ“Œ 0
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Our new paper is out: "The 3D architecture of the ctenophore aboral organ & the evolution of complex integrative centers in animals.

We reveal a remarkable cell type diversity, nerve net condensation, a multilayered circuit & gene expression profiles.

www.biorxiv.org/content/10.1... #ctenophores

28.06.2025 06:55 πŸ‘ 76 πŸ” 29 πŸ’¬ 4 πŸ“Œ 5

Congrats, Meghan!

05.02.2025 21:12 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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The curious case of the comb jelly Joan Soto-Angel and Pawel Burkhardt describe a comb jelly with the ability to reverse its development to an earlier stage of life.

The curious case of the comb jelly | Science Sessions | PNAS www.pnas.org/post/podcast...

Listen to our podcast where we describe a #ctenophore with the ability to reverse its development to an earlier stage of life.

@joanjsoto.bsky.social @msarscentre.bsky.social @pnas.org #rejuvenation

11.12.2024 12:28 πŸ‘ 31 πŸ” 13 πŸ’¬ 0 πŸ“Œ 1
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Group Leader Positions (Researcher I, code 1110) (270380) | University of Bergen Job title: Group Leader Positions (Researcher I, code 1110) (270380), Employer: University of Bergen, Deadline: Sunday, December 15, 2024

πŸ“’Only two weeks left to apply for a Group Leader position at the Centre! Join us in #SunnyBergen to lead exciting marine science πŸ§ͺ in a fantastic environment πŸ‘Send your application, and share with your network!
πŸ”— tinyurl.com/4bwn8u3n @embl.org

28.11.2024 14:39 πŸ‘ 10 πŸ” 10 πŸ’¬ 0 πŸ“Œ 3

Our ctenophores say hi to Bluesky πŸ‘‹πŸΌ

26.11.2024 21:32 πŸ‘ 37 πŸ” 9 πŸ’¬ 0 πŸ“Œ 0
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Group Leader Positions (Researcher I, code 1110) (270380) | University of Bergen Job title: Group Leader Positions (Researcher I, code 1110) (270380), Employer: University of Bergen, Deadline: Sunday, December 15, 2024

We are hiring Group Leaders! One month left to apply ⏳ Join us in beautiful Bergen for a chance to lead exciting science in a supportive environment! 🌊
πŸ”— tinyurl.com/4bwn8u3n

14.11.2024 13:29 πŸ‘ 26 πŸ” 20 πŸ’¬ 0 πŸ“Œ 0