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Katherine Helliwell

@kehelliwell.bsky.social
876 followers 1.9K following 9 posts

Algae enthusiast, Associate Professor @UniofExeter, joint appointment @thembauk Algal ecophysiology | signalling | microbiome | molecular microbiology | diatoms!

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Reposted by Katherine Helliwell
Glen Wheeler @glwheeler2.bsky.social · 28/11/2025
Exciting SWBio PhD opportunity to study cell signalling in marine diatoms during heat stress. Deadline 3rd December 2025 @swbiodtp.bsky.social @kehelliwell.bsky.social @thembauk.bsky.social @exetermarine.bsky.social
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Reposted by Katherine Helliwell
Katherine Helliwell @kehelliwell.bsky.social · 02/09/2025
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
doi.org
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.
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Reposted by Katherine Helliwell
The Marine Biological Association @thembauk.bsky.social · 29/08/2025
🧪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
Phyoplankton, lit up with fluorescence, magnified by microscope.
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Katherine Helliwell @kehelliwell.bsky.social · 02/09/2025
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
doi.org
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.
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Reposted by Katherine Helliwell
MBA Library @nmbluk.bsky.social · 20/08/2025
#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
Black and white photograph of Marie Lebour, wearing a white laboratory coat and standing outside the Marine Biological Association
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Katherine Helliwell @kehelliwell.bsky.social · 12/08/2025
🚀 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
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Katherine Helliwell @kehelliwell.bsky.social · 12/08/2025
🚀 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
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Reposted by Katherine Helliwell
Katherine Helliwell @kehelliwell.bsky.social · 31/07/2025
🌊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
tinyurl.com
Nutrient Co-limitation of Marine Microbes: Exploring Cellular to Ecosystem-Level Effects
Nutrient availability limits microbial growth in marine ecosystems globally. Accumulating evidence has highlighted the prevalence of nutrient co-limitation, whereby two or more nutrients restrict mari...
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Katherine Helliwell @kehelliwell.bsky.social · 31/07/2025
🌊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
tinyurl.com
Nutrient Co-limitation of Marine Microbes: Exploring Cellular to Ecosystem-Level Effects
Nutrient availability limits microbial growth in marine ecosystems globally. Accumulating evidence has highlighted the prevalence of nutrient co-limitation, whereby two or more nutrients restrict mari...
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Reposted by Katherine Helliwell
Vandepoele lab @vandepoelelab.bsky.social · 16/07/2025
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
vandepoelelab.be
Jobs | Vandepoele Lab
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Katherine Helliwell @kehelliwell.bsky.social · 04/07/2025
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 🤎💛💚🌊
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Katherine Helliwell @kehelliwell.bsky.social · 04/07/2025
Exciting postdoc opportunity here👇📢📢 investigating diatom sensing @mldiatoms.bsky.social @thembauk.bsky.social @exetermarine.bsky.social come join us! #protistsOnSky #diatoms #signalling
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Prof David Sims @thesimslab.bsky.social · 05/06/2025
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
science.org
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...
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The Marine Biological Association @thembauk.bsky.social · 18/06/2025
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....
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Flora Vincent @floravincent.bsky.social · 17/06/2025
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
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Laura Eme @lauraeme.bsky.social · 17/06/2025
🎉 Now out “Phylogenomic analyses indicate the archaeal superphylum DPANN originated from free‑living euryarchaeal‑like ancestors” www.nature.com/articles/s41...
nature.com
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.
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Noelle Held @proteocean.bsky.social · 05/06/2025
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...
usc.wd5.myworkdayjobs.com
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...
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Reposted by Katherine Helliwell
Jordi Solana @jordisolana.bsky.social · 01/06/2025
🚨 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...
exeter.ac.uk
LSI PhD programme | Living Systems Institute | University of Exeter
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Jelena Godrijan 🫧❾🌊🦋 @godi.bsky.social · 16/05/2025
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
shorturl.at
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.
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Reposted by Katherine Helliwell
Jelena Godrijan 🫧❾🌊🦋 @godi.bsky.social · 31/05/2025
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
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Gaspar Jekely @jekely.biologists.social.ap.brid.gy · 26/05/2025
Great PhD opportunities at the Stazione Zoologica Anton Dohrn in Naples (Italy). 6 fellowships are available to carry out interdisciplinary training. www.szn.it/index.php/it/bandi-e-con… Topics include the function of […]
biologists.social
Original post on biologists.social
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Julie Robidart @robidart.bsky.social · 24/05/2025
This is a super unique senior role on our technology team, during an exciting time for technology investment in the UK 👇
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The Marine Biological Association @thembauk.bsky.social · 22/05/2025
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
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Department of Plant Sciences Cambridge @camplantsci.bsky.social · 20/05/2025
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
Professor Julian Hibberd, Head of the Department of Plant Sciences and Fellow at Emmanuel College, University of Cambridge
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Katherine Helliwell @kehelliwell.bsky.social · 22/05/2025
My lithop flowered!! 😯💚
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Bryce Stewart @bd-stew.bsky.social · 08/05/2025
'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 🌊🐙🪸🦞🐟
mba.ac.uk
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
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The Marine Biological Association @thembauk.bsky.social · 08/05/2025
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
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.
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Michael Brockhurst @brockhurstlab.bsky.social · 29/04/2025
This meeting will be great! Abstract submission open now See you 26-27 Nov in Liverpool microbiologysociety.org/event/societ...
microbiologysociety.org
Understanding and predicting microbial evolutionary dynamics - 2025 meeting
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Corina Brussaard @brussaard7.bsky.social · 12/04/2025
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/...
science.org
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...
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Roli Roberts @roliroberts.bsky.social · 04/04/2025
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/...
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Katherine Helliwell @kehelliwell.bsky.social · 04/04/2025
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
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Katherine Helliwell @kehelliwell.bsky.social · 24/03/2025
📢Excited to share TWO ERC-funded postdoc positions!🧪Are you passionate about molecular mechanisms and marine microbial interactions?🌊🔬Join us in dissecting antagonistic diatom-bacteria interactions, by the sea! tiny.cc/xlfe001 @thembauk.bsky.social @exetermarine.bsky.social Please msg to hear more!
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Katherine Helliwell @kehelliwell.bsky.social · 24/03/2025
📢Excited to share TWO ERC-funded postdoc positions!🧪Are you passionate about molecular mechanisms and marine microbial interactions?🌊🔬Join us in dissecting antagonistic diatom-bacteria interactions, by the sea! tiny.cc/xlfe001 @thembauk.bsky.social @exetermarine.bsky.social Please msg to hear more!
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SAME18-BCN @same18-bcn.bsky.social · 22/03/2025
🌊 Save the Date! 🌍 #SAME18 — Aquatic Microbiomes on a Changing Planet 📍 Barcelona, Spain | 🗓️ Sept 28 – Oct 3, 2025 At the iconic PRBB 🧬🌿 Join us to explore the frontiers of aquatic microbial ecology. 📢 Stay tuned for more info and follow us on Bluesky! #MicrobialEcology #MarineMicrobiology #SAME18
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Vandepoele lab @vandepoelelab.bsky.social · 17/03/2025
#diatoms #genomics #resources DiatOmicBase: a versatile gene-centered platform for mining functional omics data in diatom research @theplantjournal.bsky.social onlinelibrary.wiley.com/doi/10.1111/... joint work with @afalciat.bsky.social
onlinelibrary.wiley.com
DiatOmicBase: a versatile gene‐centered platform for mining functional omics data in diatom research
In recent years, diatoms have become the subject of increasing interest because of their ecological importance and their biotechnological potential for natural products such as pigments and polyunsat...
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Wolfgang Huber @wkhuber.bsky.social · 19/03/2025
Interested in doing a sabbatical at EMBL, at one of its 6 sites in Barcelona, Cambridge, Grenoble, Hamburg, Heidelberg or Rome? Funding call with deadline 15 June, decisions in July. www.embl.org/about/info/s...
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ehehenberger.bsky.social @ehehenberger.bsky.social · 12/03/2025
PhD position available in Ceske Budejovice (Czechia), funded by ERC KLEPTOS, to study plastid endosymbiosis in kleptoplastidic protists. Are you curious about this process and do you like sampling/cultivation of protists? Join our team by applying here: jobs.bc.cas.cz/en/detail/243 #protistsonsky
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Katherine Helliwell @kehelliwell.bsky.social · 22/03/2025
Beautiful!
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