πŸ‡¨πŸ‡¦ Marc Strous
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marcstrous.bsky.social
πŸ‡¨πŸ‡¦ Marc Strous
@marcstrous.bsky.social
400 followers 91 following 75 posts

Canada Research Chair in Geomicrobiology. Fascinations include alkaline soda lakes and ancient groundwater.

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Marc Straus is an American oncologist, art collector, poet, and writer. He is the author of more than 40 scientific papers on the treatment of various types of cancer. Straus was among the first oncologists to introduce the use of continuous infusion for the delivery of chemotherapy, a practice that has since become standard. .. more

Environmental science 56%
Biology 18%
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marcstrous.bsky.social
πŸ‡¨πŸ‡¦ Marc Strous @marcstrous.bsky.social Β· 2d
Nice work, completed under nearly impossible circumstances: www.mdpi.com/2223-7747/14...

Reposted by Jonathan A. Eisen, Marc Strous

kivenson.bsky.social
Veronika Kivenson @kivenson.bsky.social Β· 2d
New paper out: An archaeal genetic code with all TAG codons as pyrrolysine: www.science.org/doi/10.1126/...
An archaeal genetic code with all TAG codons as pyrrolysine
Multiple genetic codes developed during the evolution of eukaryotes and bacteria, yet no alternative genetic code is known for archaea. We used proteomics to confirm our prediction that certain archae...
www.science.org

Reposted by Katharine Hayhoe, Marc Strous, Dustin Mulvaney

gruberte.bsky.social
Emily Grubert @gruberte.bsky.social Β· 4d
🚨job alert🚨

I'm looking to hire at least one PhD student for next year, looking at decarbonization-oriented technology deployment within an ethical frame of resource allocation and justice outcomes.

Full ad attached! Pref for CEEES admissions; deadline is 1 January.
Screenshot, job description: The β€œEthical Technology Transitions to Mitigate Climate Change” program seeks one PhD student to be advised by Dr. Emily Grubert either in Notre Dame’s Civil and Environmental Engineering and Earth Sciences (CEEES) program (School of Engineering) or the Sustainable Development (SD) program (Keough School of Global Affairs). This position is fully funded for four years (anticipated stipend: $36,000/year) and will be supported by the resources associated with the Ethics and the Common Good program chair for three years, with remaining funding to come from other sources that might carry additional deliverable requirements (e.g., a secondary project) that will be clearly communicated to the candidate. The primary research area for this position will focus on ethical considerations related to technology deployment for reducing and removing greenhouse gas emissions from the atmosphere, with a particular focus either on modeling distributional effects of particular deployment patterns associated with net-zero greenhouse gas emissions pathways (CEEES PhD) or on designing governance systems for emerging technology systems, including Carbon Dioxide Removal (CDR); hydrogen; renewable electricity; or end use electrification technologies (SD PhD). Teaching requirements are aligned with the requirements of the specific degree program. Funding is available for conference attendance, and students will have the opportunity to work with and/or mentor undergraduate research assistants.

Reposted by Simon Roux, Marc Strous, Maria Faticov

daanspeth.bsky.social
Daan Speth @daanspeth.bsky.social Β· 5d
Our paper describing the GlobDB is now published in @bioinfoadv.bsky.social
doi.org/10.1093/bioa...

The GlobDB is the largest species dereplicated genome database currently available, containing 306,260 species representatives.
More information on globdb.org 1/5
πŸ–₯️🧬🦠
GlobDB: a comprehensive species-dereplicated microbial genome resource
AbstractMotivation. Over the past years, substantial numbers of microbial species’ genomes have been deposited outside of conventional INSDC databases.Resu
doi.org

Reposted by Marc Strous

brettbergie.bsky.social
Brett Bergie (she/her) @brettbergie.bsky.social Β· 7d
β€œMy own experience prescribing puberty blockers has demonstrated enormous psycho-social benefits in youth who feel a quiet desperation watching their bodies change in ways they can’t control […] A puberty blocker provides them with a pause […] with no effects on fertility, and is 100% reversible.”
Opinion: As a physician, I see how gender-affirming care benefits youth
Alberta’s moves to restrict treatment are based in ignorance and misinformation
www.theglobeandmail.com

Reposted by Marc Strous

monicarooney.bsky.social
Smell the Onions @monicarooney.bsky.social Β· 7d
State-level anti-transgender laws increased incidents of past-year suicide attempts among trans and nonbinary young people by 7–72%

Reposted by Marc Strous

courtellingson.bsky.social
Court Ellingson @courtellingson.bsky.social Β· 7d
Once again, Alberta’s UCP Government plans to suspend Charter Rights of Albertans.

First to attack teachers’ rights, now trans youth.

The Justice Minister proudly said his voice is the final voice on this matter.

It is not. The voice of the people is the final voice.

Plz RT

#abpoli #ableg #yyc

Reposted by Marc Strous, Lindsay M. Tedds

albertadoctors.bsky.social
Alberta Medical Association @albertadoctors.bsky.social Β· 7d
Today, government introduced Bill 9 legislation invoking the notwithstanding clause to override a court ruling that protects youth access to gender-affirming care. This places government between a patient and their physician, undermining clinical autonomy. www.albertadoctors.org/news/publica...

marcstrous.bsky.social
πŸ‡¨πŸ‡¦ Marc Strous @marcstrous.bsky.social Β· 15d
Should also say i thougt all the other findings were interesting and convincing, nice work!

marcstrous.bsky.social
πŸ‡¨πŸ‡¦ Marc Strous @marcstrous.bsky.social Β· 15d
Also, although many current eukaryotes need a high ATP production rate to maintain their expanded genomes, FECA/LECA likely not yet needed that, as it's genome may still have been relatively small, like current Archaea and many current protists or fungi. Just my 2 cts

marcstrous.bsky.social
πŸ‡¨πŸ‡¦ Marc Strous @marcstrous.bsky.social Β· 15d
@archaeal.bsky.social, I have reservations about the conclusions of this paper because of muddling kinetic and stoichiometric aspects. Yes micropcompartments can boost rates but that will never affect energy yields as suggested, so cannot compensate for not using O2.

Reposted by John Kennedy, A. E. Dessler, Marc Strous

weatherwest.bsky.social
Daniel Swain @weatherwest.bsky.social Β· 22d
I just recorded a short video--essentially an updated version of my social media threads--on the Bill Gates climate memo. Despite agreeing with some points therein, I still think its framing is fundamentally flawed and thus also its key conclusions.
Thoughts from a climate scientist on the Bill Gates climate memo
I wanted to offer my thoughts, as a climate scientist, on the widely discussed memo published by Bill Gates in late October 2025. While I actually do agree with some of the specific points made therein regarding the urgent global need to accelerate efforts to reduce global poverty and improve human
www.youtube.com

Reposted by Katharine Hayhoe, Marc Strous

climateclara.bsky.social
Clara Burgard @climateclara.bsky.social Β· 28d
πŸŒŠπŸ§ŠπŸ‡¦πŸ‡Ά
I am happy and proud to present our #platformist team effort out in @nature.com!
www.nature.com/articles/s41...
We examine if, when, and why #Antarctic #ice shelves will no longer be viable, at the latest, due to changes in #atmosphere and #ocean conditions.
A little 🧡 for the experts...
1/7
Ocean warming threatens the viability of 60% of Antarctic ice shelves - Nature
The viability of Antarctic ice shelves under low rates and high rates of global warming is modelled to estimate when it will become unfeasible for the ice shelves to maintain their present-day shape.
www.nature.com

Reposted by Marc Strous

nadineziemert.bsky.social
Nadine Ziemert @nadineziemert.bsky.social Β· 29d
Happy to share our newest manuscript about the discovery and hererologous expression of metanodin, a new lassopeptide with unprecedented structural features directly from soil metagenomes. pubs.acs.org/doi/full/10....
#secmet #lassopeptides #syntheticbiology
Discovery and Heterologous Expression of the Soil Metagenome-Derived Lasso Peptide Metanodin with an Unprecedented Ring Structure
Culture-independent metagenomic approaches have proven to be effective tools for identifying previously hidden biosynthetic gene clusters (BGCs) encoding novel natural products with potential medical relevance. However, producing these compounds remains challenging as metagenomic BGCs often originate from organisms phylogenetically distant from available heterologous hosts. Lasso peptides, a subclass of ribosomally synthesized and post-translationally modified peptide (RiPP) natural products, exhibit diverse bioactivities, yet no lasso peptide has previously been discovered directly from a metagenome. Here, we report the discovery and heterologous expression of the first soil metagenome-derived lasso peptide. Expression of its biosynthetic gene cluster in Escherichia coli, followed by mass spectrometry analysis, strongly supported the predicted amino acid sequence and lasso structure of the peptide. Notably, this lasso peptide is the first to feature asparagine as the ring-forming residue at position one. Taxonomic analysis of the corresponding BGC identified an uncultivated member of the Steroidobacterales family (Gammaproteobacteria) as the closest known relative of the potential native host. These findings underscore the potential of metagenomic genome mining to reveal structurally novel RiPPs and to expand our understanding of the natural diversity of lasso peptides.
pubs.acs.org

Reposted by Marc Strous

blindmath.bsky.social
Andrew Krause @blindmath.bsky.social Β· 29d
We're advertising a PhD at the intersection of mathematical ecology, metallobiology, and microbiology to study the impact of metals on microbial communities with @thecopperdoctor.bsky.social @kateduncan.bsky.social and Denis Patterson. Come join us in lovely Durham!

iapetus.ac.uk/studentships...
When nutrients turn toxic: how metals shape microbial coexistence
iapetus.ac.uk

Reposted by Marc Strous

kostchristian.bsky.social
Christian Kost @kostchristian.bsky.social Β· 29d
#microsky #mevosky @spp2389.bsky.social

A PhD position is available in my lab to work on:

Emergence and self-organisation of bacterial metabolism in consortia of cross-feeding bacteria.

Please RT

Deadline: 12.11.25

More infos πŸ‘‡
shorturl.at/rAKAT

marcstrous.bsky.social
πŸ‡¨πŸ‡¦ Marc Strous @marcstrous.bsky.social Β· Oct 23
www.nature.com/articles/d41...
What makes PhD students happy? Good supervision
Supervisors who invest in positive mentoring relationships with their PhD candidates also reap the benefits for their own research.
www.nature.com

marcstrous.bsky.social
πŸ‡¨πŸ‡¦ Marc Strous @marcstrous.bsky.social Β· Oct 11
Wow

Reposted by Simon Roux, Marc Strous

jcamthrash.bsky.social
Cameron Thrash @jcamthrash.bsky.social Β· Oct 8
Direct single-molecule detection and super-resolution imaging with a low-cost portable smartphone-based microscope www.nature.com/articles/s41... #jcampubs
Direct single-molecule detection and super-resolution imaging with a low-cost portable smartphone-based microscope - Nature Communications
Loretan and colleagues present a low-cost smartphone-based microscope capable of detecting single-molecule fluorescence. This approach opens doors to personalised and widely distributed applications in diagnostics, biosensing, and science education.
www.nature.com

Reposted by Elena Litchman, Marc Strous, Allan Konopka , and 1 more

jebyrnes.bsky.social
Jarrett Byrnes @jebyrnes.bsky.social Β· Oct 7
Heeeeey #Microbial #Ecology folk! My department has a job opening for a tenure track Microbial Ecologist! Feel free to DM me with questions. Come join our awesome supportive whip-smart & kind crew in the Biology Department of @umassboston.bsky.social! employmentopportunities.umb.edu/boston/en-us...
The ISC - your new home at UMass Boston? The view of Boston Harbor from front of campus

Reposted by Marc Strous

jcamthrash.bsky.social
Cameron Thrash @jcamthrash.bsky.social Β· Oct 6
Global constraint principle for microbial growth laws www.pnas.org/doi/abs/10.1... #jcampubs
Global constraint principle for microbial growth laws | PNAS
Understanding complex living systems requires identifying universal phenomenological laws that are independent of species and molecular-biological ...
www.pnas.org

Reposted by Andy Baker, Jed O. Kaplan, Marc Strous

watershedlab.bsky.social
Dr Dan Shugar πŸ‡¨πŸ‡¦ @watershedlab.bsky.social Β· Oct 3
🚨FOUR tenure track positions in my dept @ucalgary.bsky.social @ucalgaryscience.bsky.social in applied & computational geophysics, subsurface geochemistry, sedimentary geology, and sustainable soil science. careers.ucalgary.ca/search/jobs?...

(please reskeet widely!) #academicsky πŸ§ͺβš’οΈπŸ‡¨πŸ‡¦
Opportunities matching 'earth'
Search 4 Careers available at University of Calgary.
careers.ucalgary.ca

marcstrous.bsky.social
πŸ‡¨πŸ‡¦ Marc Strous @marcstrous.bsky.social Β· Sep 26
My lab is attempting ancestral reconstruction of some very large trees using ALEml (amalgamated likelihood). Does anyone know if a multithreaded implementation of ALE is available somewhere? Our HPC is unhappy with us running a single thread for >24h on the bigmem node...

Reposted by Marc Strous

jcamthrash.bsky.social
Cameron Thrash @jcamthrash.bsky.social Β· Sep 26
A roadmap for equitable reuse of public microbiome data www.nature.com/articles/s41... #jcampubs
A roadmap for equitable reuse of public microbiome data - Nature Microbiology
In this Consensus Statement, a consortium of microbiome scientists discuss current sequencing data sharing policies and propose the use of a Data Reuse Information (DRI) tag to promote equitable and collaborative data sharing.
www.nature.com

Reposted by Marc Strous

jcamthrash.bsky.social
Cameron Thrash @jcamthrash.bsky.social Β· Sep 23
BONCAT-Live for isolation and cultivation of active environmental bacteria journals.asm.org/doi/full/10.... #jcampubs

Reposted by Marc Strous

jcamthrash.bsky.social
Cameron Thrash @jcamthrash.bsky.social Β· Sep 19
GPU-accelerated homology search with MMseqs2 www.nature.com/articles/s41... #jcampubs
GPU-accelerated homology search with MMseqs2 - Nature Methods
Graphics processing unit-accelerated MMseqs2 offers tremendous speedups for homology retrieval from metagenomic databases, query-centered multiple sequence alignment generation for structure predictio...
www.nature.com

Reposted by Marc Strous

jeffinerca.bsky.social
Dr. Jennifer Pett-Ridge @jeffinerca.bsky.social Β· Sep 18
isme-microbes.org/isme-scholar...
Call for Applications – ISME Scholar Mobility Fund – ISME
ISME supports MSc/PhD graduate students and postdocs to develop academically via the Scholar Mobility Fund. Please submit your application by 1 October to study at a host institution abroad.
isme-microbes.org

marcstrous.bsky.social
πŸ‡¨πŸ‡¦ Marc Strous @marcstrous.bsky.social Β· Sep 18
Rings true... we can do better than that. www.nature.com/articles/d41...
Equity in science is a beautiful lie β€” and I’m done pretending
Science isn’t really moving towards equity; institutions are just perfecting the appearance of equity. We need to build an alternative system.
www.nature.com

Reposted by Marc Strous

cstross.bsky.social
Charlie Stross @cstross.bsky.social Β· Sep 13
Here's a GIANT one: C3 photosynthesis using RUBISCO is inefficient, but scientists have designed and run a new and more efficient photosynthetic pathway in Arabidopsis:

https://arstechnica.com/science/2025/09/new-pathway-engineered-into-plants-lets-them-suck-up-more-coβ‚‚/

marcstrous.bsky.social
πŸ‡¨πŸ‡¦ Marc Strous @marcstrous.bsky.social Β· Sep 10
Major step forward in pinning down legal responsibility for climate change: Unravelling the individual contributions of Energy Companies to specific heatwaves: www.nature.com/articles/s41...
Systematic attribution of heatwaves to the emissions of carbon majors - Nature
Climate change made 213 historical heatwaves reported over 2000–2023 more likely and more intense, to which each of the 180 carbon majors (fossil fuel and cement producers) substantially contributed.
www.nature.com