(1/16) Nearly two-thirds of ocean carbon fixation flows through a diverse organelle: the pyrenoid. Our new paper maps its 3D architecture in the alga Chlorella and identifies new proteins — expanding the toolkit to engineer this CO2-concentrating machine into crops🧵 #Pyrenoid #CCM #Photosynthesis
Jonas Blomme
@jonasblomme.bsky.social
Biologist | Associate professor working on Seaweed | Phycology Research Group and Plant Genome Editing Group (University of Ghent) | Posts about plant and marine science | https://jacobslab.sites.vib.be/en/ulva
Excited to share our latest preprint on #PhycologyFriday. We map out the carbon fixation pathway for the first time in a multicellular alga, the green seaweed Ulva, and reveal a unique Rubisco-Linker interaction in the pyrenoid, a chloroplast condensate. Below I summarize some key points. #seaweeds
A spatial atlas of the seaweed CO2-fixation machinery reveals a unique Rubisco condensation mechanism https://www.biorxiv.org/content/10.64898/2026.07.16.738900v1
EPOS1 is required for normal pyrenoid starch sheath assembly and CO2-fixation in Chlamydomonas Liat Adler, et al. nph.onlinelibrary.wiley.com/share/UGKQVT... #PlantScience
Breaking News! Code: y-axis alert! As of July 5th, the Nino 3.4 sea-surface temperature anomaly has now crossed 1.80°C above the 1991-2020 mean. ' The Nino 3.4 SST is now 3.46 standard deviations above the 1991-2020 mean:
A versatile tool for gene editing in the diatom Thalassiosira pseudonana academic.oup.com/plphys/artic... @plantphys.bsky.social
A versatile tool for gene editing in the diatom Thalassiosira pseudonana
An integrated genetic toolkit enables systematic molecular investigation of ocean diatoms, microscopic algae that contribute approximately one-fifth of glo
academic.oup.com
Green micro-transformation... Kasai et al report improved genetic transformation efficiency in Coccomyxa sp. KJ, thereby enabling functional genomics in this non-model green #microalga that inhabits diverse aquatic & terrestrial environments The secret ingredient? Zeocin doi.org/10.1093/pcp/...
Global warming is ocean warming! This graph shows temperature anomalies averaged over the global ocean, using Argo profiling data since 2004. While sea surface temps can fluctuate, deeper waters display a consistent warming trend—indicative of Earth's overall climate. #ShowYourStripes
The Thermo Fisher situation keeps getting worse. We've now collected 450+ problematic images presented as verification data in TF's antibody catalog. This includes: 🖌️ Dozens more images with duplications or painting 🖨️ Hundreds of blots that all share the same background (behold slideshow below)
I am looking for a postdoctoral fellow to join my team to work on the interplay between endocytosis and autophagy. The 3-year project runs in collaboration with the Dagdas lab @plantophagy.bsky.social and can start asap. Interested candidates can apply via the link below. jobs.vib.be/apply/134365
Our new experimental evolution study across 30+ locations using the plant Arabidopsis thaliana —— we direct "see" adaptation and extinction to different climates at the genetic as it happens! Read it in Science dx.doi.org/10.1126/scie... @ucberkeleyofficial.bsky.social @hhmi-science.bsky.social
Golden Gate 🧬 builds complex T-DNAs for plant transformation & gene editing — but what if we used it to make binary vector backbones? Glad to contribute to Jonas De Saeger's (Jacobs lab @psb-vib.bsky.social ) preprint on BackBone Builder 🔧🌱 tinyurl.com/4ycydjhe
2025 was the hottest year on record for ocean heat content. Unfortunately, we now say this every year. 🥹 "In addition to setting a new record in 2025, the global ocean continues to show sustained and intensified warming." + #OpenAccess Study: doi.org/10.1007/s003... + Data: www.ocean.iap.ac.cn
Climate visuals: Here are all the figures you need for showing the changes in climate in your presentations! by @edhawkins.org ed-hawkins.github.io/climate-visu... An additional one here: nph.onlinelibrary.wiley.com/doi/10.1111/... 🧪🌍🌐 #ClimateChange
Climate variations over the last 2000 years provide valuable context and help answer questions about how unusual the recent changes are. Now with added global sea level rise: climatelabbook.substack.com/p/climate-ch... Graphics: ed-hawkins.github.io/climate-visu...
Interested to learn more about Plant Biotechnology? Enroll in our one-year Subsequent Master program and enjoy a training at Europe's largest Agro-biotech campus: masterplantbiotechnology.ugent.be
Algal pyrenoids—condensates that mediate ~1/3 of Earth’s CO2 fixation—change size and number as cells divide. Our data suggest a simple control mechanism: a kinase that continuously ejects material from the condensate! ☀️🌍🔬💧 #Biophysics #Photosynthesis www.biorxiv.org/content/10.1...
Our article about Sea lettuce #seaweed biodiversity is now published in TAXON: "Incorporating historic specimens to reassess Ulva diversity in the Netherlands and Belgium" We found Ulva shanxiensis, a freshwater species, for the first time outside China! onlinelibrary.wiley.com/doi/10.1002/...
🌿🌊Annals of Botany invites submissions to a new Special Issue on "Macroalgae and ecosystem services", edited by AoB editors Mick Hanley and Kira Krumhansl and guest editor Louise Firth. (1/3) @louisefirth.bsky.social
For this #PhycologyFriday I'm happy to share my ✨new paper✨ about #kelp disease -> rdcu.be/ets28 Pink-spot disease occurs in kelp nurseries across North America and Europe according to our survey and we identified a bacteria (Algicola sp.) as the likely causative agent. 🦑 #aquaculture
Kelp forests on the coast of Maine are in decline owing to rapid ocean warming and are being replaced by turf algae, which alter the ecosystem’s chemistry, hindering the recovery of kelp forests. Learn more in this week's issue of Science: scim.ag/4dwzl8j
I will forever be haunted by this footage. Trawling has only been filmed underwater a few times in documentary history, and never with such clarity. What’s so heart-rending about these shots is watching how the animals don’t just get swept up — they swim for their lives. 🌎🦑🧪
Online now: Positive selection and relaxed purifying selection contribute to rapid evolution of sex-biased genes in green seaweed Ulva link.springer.com/article/10.1...
Positive selection and relaxed purifying selection contribute to rapid evolution of sex-biased genes in green seaweed Ulva - BMC Ecology and Evolution
Background The evolution of differences in gamete size and number between sexes is a cornerstone of sexual selection theories. The green macroalga Ulva, with incipient anisogamy and parthenogenetic ga...
link.springer.com
Giving up on #photosynthesis: How a borrowed bacterial gene allows marine #diatoms to live on a #seaweed diet phys.org/news/2025-04... Diatom heterotrophy on brown algal polysaccharides emerged through HGT, gene duplication, & neofunctionalization journals.plos.org/plosbiology/... #algae #protists
POSTDOC POSITION in the group of @alaingoossenspsb.bsky.social @viblifesciences.bsky.social More info here: jobs.vib.be/j/108923/pos...
Postdoctoral Researcher - VIB
OverviewThe group of Specialized Metabolism, led by Prof. Alain Goossens at the VIB-UGent Center for Plant Systems Biology, and the metabolic engineering researc
jobs.vib.be
Expanding the toolkit for ploidy manipulation in Chlamydomonas reinhardtii nph.onlinelibrary.wiley.com/doi/10.1111/... @newphyt.bsky.social
Expanding the toolkit for ploidy manipulation in Chlamydomonas reinhardtii
Whole-genome duplications, widely observed in plant lineages, have significant evolutionary and ecological impacts. Yet, our current understanding of the direct implications of ploidy shifts on shor.....
nph.onlinelibrary.wiley.com
In a new Science study, cryo–electron tomography captures the in-cell architecture of the mitochondrial respiratory chain, illuminating how the coordinated action of molecular machines drives life’s fundamental energy conversion. Learn more in this week's issue: scim.ag/3FA3Ygq
Qiangnan Feng (Nowack lab @moritznowack.bsky.social @psb-vib.bsky.social ) shows that cell-type specific elevated autophagy in root hairs extends their lifespan by suppressing premature senescence and age-induced programmed cell death www.biorxiv.org/content/10.1...
Root hair lifespan is antagonistically controlled by autophagy and programmed cell death
Root hairs are tubular tip-growing extensions of root epidermal cells that enhance root surface area for water and nutrient uptake. While mechanisms governing root hair fate, polarity, and tip growth ...
biorxiv.org
Join the GMI as a Junior Group Leader! The GMI is seeking a talented scientist to lead an independent research group, addressing fundamental questions in molecular plant biology. More information is below.