David Demory
@d2mory.bsky.social
430 followers 670 following 11 posts
Quantitative microbial ecology and evolution, oceanography, microbes and their viruses. Researcher @cnrs.bsky.social and @OOBanyuls.
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d2mory.bsky.social
Thanks for the great collaboration with Prof. Hiro Ogata and Dr. Hisashi Endo at the Institute of Chemical Research of @kyotouniversity.bsky.social; Prof. @joshuasweitz.bsky.social at the @umaryland.edu; and our funders, The @simonsfoundation.org and the ICM at Kyoto University 🙏
d2mory.bsky.social
We integrated mathematical modelling with in situ metagenomics using the TARA Oceans and TARA Arctic datasets, and we recapitulated virus presence and absence in the ocean through a model describing temperature-driven cell-based interactions between viruses and phytoplankton.
d2mory.bsky.social
PhD opportunity in marine virus eco-evo dynamics

Joint CNRS–UBC program: @cnrsbiologie.bsky.social × @ubcoceans.bsky.social

📍 Banyuls-sur-Mer, France (LBBM UMR8176)
🗓️ Start: Oct 2025 | Duration: 3 years
🔍 Skills: Modelling, Bioinformatics, Marine Virology

🔗 Apply: emploi.cnrs.fr/Offres/Docto...
Portail Emploi CNRS - Offre d'emploi - Contract doctoral M/F- integrative biology of photosynthetic organisms and associated microorganisms
emploi.cnrs.fr
Reposted by David Demory
layeb.bsky.social
Grateful for the opportunity to work with such an amazing team, to our collaborators around the 🌍 and the Nomis foundation for supporting our work.

New insights into the diversity and biogeography of bacteria in glacier-fed streams across 11 mountain ranges, out now in @nature.com
d2mory.bsky.social
Japan w/ Hisashi Endo and Hiroyuki Ogata at ICR Kyoto Univ, USA w/ @joshuasweitz.bsky.social at Univ. of Maryland and France w/ @cnrsbiologie.bsky.social, @sorbonne-universite.fr, @sbroscoff.bsky.social, LBBM at OOB Banyuls and Tara Oceans Foundation.
d2mory.bsky.social
Our results highlight that temperature-driven cellular mechanisms can drive the community dynamics and biogeography of marine viruses.

This multidisciplinary study has been possible through great collaborations involving 3 continents: (5/6)
d2mory.bsky.social
We used a mathematical model describing the temperature-driven virus-host dynamics to predict MpV-s distribution. We found that viral abilities to lyse and infect were good predictors of MpV-s presence and absence. (4/6)
d2mory.bsky.social
By reconstructing virus phylogeny, we found that MpV-s were clustered into cryophile groups, growing mainly at low temperature below 10°C, or cryo-mesophile groups, growing from cold to more than 20°C. (3/6)
d2mory.bsky.social
We focused on prasnoviurses infecting Micromonas (MpV), a picoeukaryote genus distributed from poles to tropics. We explored the distribution of isolated MpV-s in Tara datasets and highlighted that temperature is the main descriptor of their community composition. (2/6)
Reposted by David Demory
joshuasweitz.bsky.social
Delighted to share this paper out via Virus Evolution:

academic.oup.com/ve/advance-a...

in which we develop and assess a quantitative method to infer phage and bacterial mutations driving changes in infection phenotypes arising in coevolutionary dynamics.

a 🧵 about people (and some science)
Predicted infections with phage/host mutation models
d2mory.bsky.social
We are delighted to announce that the registrations are now open for the 12th Aquatic Virus Workshop (AVW12), to be held in Banyuls-sur-Mer (France), May 5-9 2025. Consider to register early because we have limited space!
avw12.sciencesconf.org
avw12.sciencesconf.org/data/header/...