Seth Bordenstein
@symbionticism.bsky.social
3.7K followers 360 following 380 posts
Scientist, Huck Professor: Microbiome, Virome, Symbiosis, Evolution, Genetics, Phylosymbiosis, Holobiont, Wolbachia, Phage | Director of One Health Microbiome Center @psumbiome.bsky.social | SciEd: @wolbachiaproj.bsky.social | @holobiontbiology.bsky.social
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symbionticism.bsky.social
Microbiomes are the foundation of the biosphere. Hosts such as humans, bees, and plants have never been just hosts. They are complex units of biological organization upon which various forces act to shape composition, form, and function. www.science.org/doi/10.1126/...
The disciplinary matrix of holobiont biology
Uniting life’s seen and unseen realms guides a conceptual advance in research
www.science.org
Reposted by Seth Bordenstein
bielleogy.bsky.social
To the Full Professors out there who actually lift people up, advocate for those with less power and voice, and who care about colleagues and trainees doing well over arbitrary gatekeeping... I see you and am grateful for you.
symbionticism.bsky.social
Thanks for the baton pass Colm and Kat! Just hired someone.
symbionticism.bsky.social
🎙️ OPEN INVITATION | One Health Microbiome Symposium:
Food safety expert and keynote Martin Wiedmann is renowned for his pioneering research on the causes and control options for foodborne and zoonotic pathogens. Join the food sci and chat with Martin in May '26

www.huck.psu.edu/institutes-a...
symbionticism.bsky.social
The band back together looks fab. What a duo you two are!
Reposted by Seth Bordenstein
gibbological.bsky.social
Had a lovely time chatting with @markowenmartin.bsky.social for the second time on his Matters Microbial podcast!

Thanks for having me, Mark! And thanks for this service you provide to our community 🙏

@isbscience.org @asm.org @microbetv.bsky.social

youtu.be/wdwTma0gV4k
Matters Microbial #110: Enumerating the Microbiome
YouTube video by MicrobeTV
youtu.be
Reposted by Seth Bordenstein
stcmicrobeblog.bsky.social
absolutely wild, from the Small Molecules Considered (SMC) branch:
"...this work provides another piece in a complex biological puzzle aiming to understand the persistent and pervasive nature of 𝘞𝘰𝘭𝘣𝘢𝘤𝘩𝘪𝘢 endosymbionts." (doi.org/10.1016/j.ce...)
#MicroSky #SymbioSky
kaurr.bsky.social
#Wolbachia has puzzled scientists with its power to rewire insect reproduction. What if I tell you that we found one of the keys Wolbachia use to rewire its host AND a small molecule inhibitor uses this key to mimic what this microbe has mastered for millions of years.

www.cell.com/cell-reports...
Beyond Wolbachia—Can a small molecule control insect reproduction?
Kaur et al. demonstrate reduced histone acetylation as a key mechanism underpinning Wolbachia’s paternal-effect embryonic lethality trait in Drosophila melanogaster. Recapitulation of this trait by in...
www.cell.com
Reposted by Seth Bordenstein
symbionticism.bsky.social
Science is generally wondrous. Yet the paper (out in a few weeks) that this Journal Preview covers is one of the biggest WOW moments of my scientific career. Illustrious credit to @kaurr.bsky.social who dreamed it. With this evidence, we end a mechanistic debate on the nature of the CI trait.
kaurr.bsky.social
#Wolbachia has puzzled scientists with its power to rewire insect reproduction. What if I tell you that we found one of the keys Wolbachia use to rewire its host AND a small molecule inhibitor uses this key to mimic what this microbe has mastered for millions of years.

www.cell.com/cell-reports...
Beyond Wolbachia—Can a small molecule control insect reproduction?
Kaur et al. demonstrate reduced histone acetylation as a key mechanism underpinning Wolbachia’s paternal-effect embryonic lethality trait in Drosophila melanogaster. Recapitulation of this trait by in...
www.cell.com
Reposted by Seth Bordenstein
kaurr.bsky.social
#Wolbachia has puzzled scientists with its power to rewire insect reproduction. What if I tell you that we found one of the keys Wolbachia use to rewire its host AND a small molecule inhibitor uses this key to mimic what this microbe has mastered for millions of years.

www.cell.com/cell-reports...
Beyond Wolbachia—Can a small molecule control insect reproduction?
Kaur et al. demonstrate reduced histone acetylation as a key mechanism underpinning Wolbachia’s paternal-effect embryonic lethality trait in Drosophila melanogaster. Recapitulation of this trait by in...
www.cell.com
symbionticism.bsky.social
Evolution has a strong story to tell for microbiomes, and I love the ways that colleagues keep pushing phylosymbiosis further into new categories. Host phylogeny is the primary contributor to variance in bacterial microbiomes, viromes, & KEGG-based / CAZy-based functional profiles in 23 marsupials.
symbionticism.bsky.social
#Phylosymbiosis in six sympatric rodents from the Yucatan Peninsula. Family richness, common taxonomic components of bacteria, and beta dispersion have a phylogenetic component. Comparatively, dominant species (q2) did not. Nice use of comparative method!

link.springer.com/article/10.1...
Evolutionary and Ecological Drivers of Gut Microbiota in Wild Rodent Species from the Yucatán Peninsula - Microbial Ecology
The host-microbiome association is considered a coevolutionary process, in which the microbiome provides important functions for host development, physiology and health. However, the ecological and evolutionary forces shaping the diversity and structure of the bacterial communities that form the microbiome are still being elucidated. We assessed the composition of gut microbiota in six rodent species from three geographic regions across the Yucatán peninsula, Mexico. We evaluated the contribution of host species identity, phylogenetic relationships, and geography to the rodents’ gut microbiota, using 16S rRNA V4 sequences. We performed a comprehensive set of analytical approaches, including Hill numbers, machine learning, and phylogenetic comparative frameworks. Our results show that phylosymbiosis is one of the main mechanisms driving microbiota dissimilitude across species and specific microbiota diversity traits. Additionally, the microbial pool in each region was geographically differentiated, shaped by the rodent community ensemble, while ecological filtering rendered a microbial pool characteristic of each species. The environment also played a significant role for some species like Heteromys gaumeri, while dietary habits showed a stronger signal for Oryzomys couesi. Rodents with more specialized habits like Ototylomys phyllotis (semi-arboreal, folivorous) had higher bacterial diversity. The abundance of eight bacterial families determined key differences of the gut microbiota which, in addition to phylogeny and geography, are associated with distinct diet and metabolic functions among rodents. Distinct metabolic functions were related, among others, to toxins metabolism and digestion of complex food components. Overall findings show that both evolutionary and ecological drivers influence these rodents gut microbial structure and composition.
link.springer.com
symbionticism.bsky.social
Inside the bricks and below Eden where the microscopes nest in safety, we science here.
symbionticism.bsky.social
Hard to avoid, but good to point out. Thanks!
Reposted by Seth Bordenstein
holobiontbiology.bsky.social
This is next level, important, and inspiring. Very well done.

"Holobiont–holobiont interactions across host–ectoparasite systems"

parasitesandvectors.biomedcentral.com/articles/10....
Reposted by Seth Bordenstein
gilbertjacka.bsky.social
Microbes = climate allies.
Our new editorial calls for a global alliance to put microbial science at the center of climate action. 🌱🌍

Because microbes cross every border—so should our solutions.
👉 doi.org/10.1093/sumb...
Microbes without borders: uniting societies for climate action
Abstract. The climate crisis is one of the greatest challenges of our time, yet the role of microorganisms remains underrecognized in climate science and p
doi.org
Reposted by Seth Bordenstein
asm.org
ASM @asm.org · 14d
Microbes know no borders, nor should efforts to harness their potential for climate solutions. ASM & 9 other partners have launched a global strategy to position microbial science as a pillar of climate action.

🔗Read the press release & #mbio editorial: asm.org/climatestrat...

#ClimateAction
Microbes Without Borders: Uniting Societies for Climate Action
symbionticism.bsky.social
Perfectly stated and indeed very interesting Patrick!
symbionticism.bsky.social
What stood out is that human and other primate holobionts exhibit mycobiome phylosymbiosis to a modest degree, whereby related primate species harbor more similar gut fungal communities. Notably, a few fungal taxa codiverge and cospeciate on time scales that that match hominid evolutionary history.