Katherine Helliwell

Nitrogen status exerts dynamic control over phosphorus sensing and acquisition via PSR1 in colimited marine diatoms Diatoms exert reciprocal, fine-scale control of P acquisition by N availability, depending on the immediate needs of the cell.

How do diatoms cope with nitrogen and phosphorus colimitation? — Happy to share our new paper:

"Nitrogen status exerts dynamic control over phosphorus sensing and acquisition via PSR1 in colimited marine diatoms"
🔗 doi.org/10.1126/scia...

@exetermarine.bsky.social @thembauk.bsky.social

Phyoplankton, lit up with fluorescence, magnified by microscope.

🧪How do marine phytoplankton cope with shortage of two vital nutrients? New research @thembauk.bsky.social @exetermarine.bsky.social reveals a hierarchy in nutrient stress responses to nitrogen and phosphorus co-limitation of marine diatoms🧬 Read the paper: www.science.org/doi/10.1126/...

#diatoms

Nitrogen status exerts dynamic control over phosphorus sensing and acquisition via PSR1 in colimited marine diatoms Diatoms exert reciprocal, fine-scale control of P acquisition by N availability, depending on the immediate needs of the cell.

How do diatoms cope with nitrogen and phosphorus colimitation? — Happy to share our new paper:

"Nitrogen status exerts dynamic control over phosphorus sensing and acquisition via PSR1 in colimited marine diatoms"
🔗 doi.org/10.1126/scia...

@exetermarine.bsky.social @thembauk.bsky.social

Black and white photograph of Marie Lebour, wearing a white laboratory coat and standing outside the Marine Biological Association

#OTD in 1876 Marie Victoire Lebour was born. Marie Lebour was based @thembauk.bsky.social for much of her caeer, which primarily focused on planktonic larvae and other microplantkon. We are privileged to have her personal library and research material in the library and archive.

📷UM158

🚀 Exciting opportunity to launch your independent research career! @thembauk.bsky.social Reach out if you'd like to hear more. @mldiatoms.bsky.social #protistsonsky #ECR #AcademicJobs #Protistology #marinemicrobes

🚀 Exciting opportunity to launch your independent research career! @thembauk.bsky.social Reach out if you'd like to hear more. @mldiatoms.bsky.social #protistsonsky #ECR #AcademicJobs #Protistology #marinemicrobes

🌊Curious how multi-nutrient scarcity impacts marine microbes🦠? Excited to announce our #OSM26 session, Glasgow Feb 22-27! Join us in bridging cell biology, modelling & oceanography! tinyurl.com/zzt5s9su @exetermarine.bsky.social @thembauk.bsky.social @proteocean.bsky.social @cmarkmoore.bsky.social

🌊Curious how multi-nutrient scarcity impacts marine microbes🦠? Excited to announce our #OSM26 session, Glasgow Feb 22-27! Join us in bridging cell biology, modelling & oceanography! tinyurl.com/zzt5s9su @exetermarine.bsky.social @thembauk.bsky.social @proteocean.bsky.social @cmarkmoore.bsky.social

We are hiring! If you have experience in plant genomics + AI, or promoter engineering + synthetic biology, check out our two open postdoc positions (computational + wetlab): www.vandepoelelab.be/Jobs please re-share RT #ERC

We had a wonderful time at the Molecular Life of Diatoms meeting in Ghent last week!! Many stimulating conversations and fantastic talks. Huge thanks to the organizers for this splendid event #mld8 #protistsOnSky 🤎💛💚🌊

Exciting postdoc opportunity here👇📢📢 investigating diatom sensing @mldiatoms.bsky.social @thembauk.bsky.social @exetermarine.bsky.social come join us! #protistsOnSky #diatoms #signalling

Global tracking of marine megafauna space use reveals how to achieve conservation targets The recent Kunming-Montreal Global Biodiversity Framework (GBF) sets ambitious goals but no clear pathway for how zero loss of important biodiversity areas and halting human-induced extinction of thre...

NEW in @science.org Global tracking #MarineMegafauna shows <8% of areas used overlap w/ existing MPAs, while >75% of important areas overlapped by threats like #fishing #shipping & ocean warming - 30x30 goal will be insufficient for their conservation www.megamove.org @thembauk.bsky.social

We’re hiring! 🌊💼 Join our Operations team at our waterfront location in #Plymouth, where you'll be central to supporting us as a destination for #MarineBiology research & discovery.

🐟 Aquarium & Research Facilities Technician
🌊 Site Services Coordinator

More info: mymba.mba.ac.uk/job-listing....

Excited to share the lab's 1rst preprint! Rapid high-res immunofluorescence is now possible in cultured & environmental diatoms thanks to 4-fold expansion microscopy. A step-change for comparative cell biology in one of the most important phytoplankton groups on the planet 🥳
tinyurl.com/m9s5su7s 1/2

Phylogenomic analyses indicate the archaeal superphylum DPANN originated from free-living euryarchaeal-like ancestors - Nature Microbiology Phylogenetic reconstructions with conserved protein markers from the 11 known DPANN phyla reveal their monophyletic placement within the Euryarchaeota.

🎉 Now out “Phylogenomic analyses indicate the archaeal superphylum DPANN originated from free‑living euryarchaeal‑like ancestors” www.nature.com/articles/s41...

Assistant Director of the Center for Proteomics Discovery (Research Program Administrator) The USC Dana and David Dornsife College of Letters, Arts and Sciences is seeking a Research Program Administrator (non-Clinical) and Assistant Director of the USC Center for Proteomics Discovery. This...

I am hiring a research/technical specialist/manager to help us make the most out of new LC-MS instrumentation at USC! Please share the word and write me for more details. usc.wd5.myworkdayjobs.com/en-US/Extern...

LSI PhD programme | Living Systems Institute | University of Exeter

🚨 We’re recruiting PhD students! 🚨

Join the Stem Cell Biology and Evolution lab at @lsiexeter.bsky.social to study planarians, stem cells & evolution.

2 projects available - 1 week left to apply!
Interested and no PhD yet? Apply now. Or help us spread the word! 🙌

www.exeter.ac.uk/research/ins...

Advances in Coccolithophore Research 2025 The Advances in Coccolithophore Research meeting aims to bring together international early career and established coccolithophore scientists. This is a hybrid meeting hosted at the MBA, Plymouth.

Join us @thembauk.bsky.social in Plymouth for the 4th edition of the Advances in Coccolithophore Research
🌊 🔬🦠🧪📈 <Coccolithophore emoji>

⚠️Register Now: shorturl.at/ly1LT
#Coccolithophores #protistsonsky

Coccolithophore research on: Biogeochemistry, Cell Biology, Climate Change, Ecosystems

Today was a perfectly colorful day 🌈—on the way to sample coccolithophores, we stumbled upon a pink lake. Under the scope, I found green algae and diatoms in a “forest” of pink! 💗💚🔬
#protistsonsky #CoccoChannel #HRZZ

Great PhD opportunities at the Stazione Zoologica Anton Dohrn in Naples (Italy).

6 fellowships are available to carry out interdisciplinary training.

https://www.szn.it/index.php/it/bandi-e-concorsi/bandi-di-concorso/ph-d-program/ph-d-program-open-calls

Topics include the function of […]

This is a super unique senior role on our technology team, during an exciting time for technology investment in the UK 👇

Yet again we are seeing "unprecedented" marine heatwaves in 2025.

buff.ly/mnEcYcV

What will we see in 2025 & beyond? @dansmale1.bsky.social comments, “If this continues through the summer we would expect to see widespread biological impacts. This is a significant warming event."

buff.ly/U6iBTBN

Professor Julian Hibberd, Head of the Department of Plant Sciences and Fellow at Emmanuel College, University of Cambridge

Congratulations to Professor Julian Hibberd, Head of the Department of Plant Sciences, University of Cambridge, who has been elected as a Fellow of the Royal Society for his groundbreaking work on C4 photosynthesis.

Read more: tinyurl.com/y53wvve3

#PlantSciences 🧪

@cambridgebiosci.bsky.social

My lithop flowered!! 😯💚

Marine Biological Association makes key contribution to new documentary film Ocean with David Attenborough | Marine Biological Association Senior Research Fellow Dr Bryce Stewart and the Marine Biological Association's (MBA) research vessel ‘Sepia’ played a vital role in helping to create key

'Ocean with #DavidAttenborough' - Out in cinemas TODAY! I am super proud to have worked on the film with @thembauk.bsky.social colleagues on the RV Sepia & the incredible team at Silverback Films
www.mba.ac.uk/marine-biolo... The best ocean documentary I have every seen! #oceanfilm #mustwatch 🌊🐙🪸🦞🐟

Sir David Attenborough looks out to sea in Southern England. OCEAN WITH DAVID ATTENBOROUGH highlights the vital, achievable actions the world can take to restore the ocean and stabilise the climate, debuting in 2025. Photo by © Conor McDonnell.

Dr Bryce Stewart next to research vessel, MBA Sepia. Photo by © The Marine Biological Association.

A compass jellyfish off the coast of Pembrokeshire, United Kingdom. Photo by © Olly Scholey.

We’re proud to share that the MBA made a key contribution to #Ocean with #DavidAttenborough! 🎬🌊 This breathtaking new film showcases the wonder of life beneath the waves & exposes the realities & urgent challenges facing our ocean

➡️ www.mba.ac.uk/marine-biolo...

@bd-stew.bsky.social #OceanFilm

Understanding and predicting microbial evolutionary dynamics - 2025 meeting

This meeting will be great!

Abstract submission open now

See you 26-27 Nov in Liverpool

microbiologysociety.org/event/societ...

Cryptic infection of a giant virus in a unicellular green alga Latency is a common strategy in a wide range of viral lineages, but its prevalence in giant viruses remains unknown. Here we describe a 617 kbp integrated giant viral element in the model green alga C...

Latest findings on cryptic infection of giant viruses published in @ScienceMagazine. We discovered a large virus hiding within a green algal genome producing virions.
www.science.org/doi/10.1126/...

Q: Bored of photosynthesis and want to eat seaweed instead? What do you do? A: acquire an alginate lyase gene from bacteria, and massively duplicate & neofunctionalise it to generate you own alginate catabolism system. Cool paper from Jedd lab in @plosbiology.org - journals.plos.org/plosbiology/...

Yay, team members Courtney Swink, Ellen Harrison and Beth Tindall-Jones representing #marinemicrobes #diatoms this week at the annual @microbiologysociety.org meeting in Liverpool ! 🌊🔬👏👏👏 @thembauk.bsky.social @exetermarine.bsky.social #MicroBio25