Lucas Santana Souza
LightNews LightNews
banner
lucasgenoma.bsky.social
Lucas Santana Souza
@lucasgenoma.bsky.social
25 followers 42 following 4 posts
Using mathematical models and individual-based simulations to study the social evolution of microbes, viruses, and endosymbiosis.
Posts Replies Media Videos
Reposted by Lucas Santana Souza
pamferretti.bsky.social
This work stems from the “Theory of Microbial Symbiosis” workshop held last year at HIMB (Hawaiʻi Institute of Marine Biology), supported by the Gordon and Betty Moore Foundation @moorefound.bsky.social. Grateful to Joan Roughgarden and Lisa McManus for organizing such a fantastic workshop!
Participants of the “Theory of Microbial Symbiosis” workshop standing together on the shore at the Hawaiʻi Institute of Marine Biology, with the ocean and trees in the background Two researchers discussing their results shown on a screen A group of four researchers gathered around a blackboard with equations. One is pointing at the board, another is writing on it, a third is taking notes on paper, and the fourth is observing the discussion A wooden building situated on the shore, with palm trees in the background. A group of people is gathered in front of the building, engaged in conversation
July 9, 2025 at 7:00 PM
Reposted by Lucas Santana Souza
pamferretti.bsky.social
Great team work with Maria Martignoni, Lisa McManus, Taom Sakal, Armun Liaghat @armunliaghat.bsky.social ,
Bethany Stevens, Kyle Dahlin, Lucas Souza @lucasgenoma.bsky.social, Zoe Cardon, Cynthia Silveira, Seth Bordenstein @symbionticism.bsky.social, and Joan Roughgarden.
July 9, 2025 at 7:00 PM
Reposted by Lucas Santana Souza
pamferretti.bsky.social
We discuss the limits of current theoretical host-microbe models and outline 3 key areas for future work:

1) Modelling the nested structure of holobionts
2) Capturing microbial transmission dynamics in #holobiont populations
3) Understanding symbiont-driven host evolution and speciation
The top of the image shows a coral reef with a zoomed-in section highlighting the coral holobiont (comprising coral cells, bacteria, phages, fungi, and zooxanthellae). Below each component is its genetic material, collectively forming the "hologenome." At the bottom, a wasp is shown as another example of a holobiont. On the left, the wasp hosts symbionts such as bacteria and phages. In the center, two wasps share some symbionts with each other and the environment. On the right, a wasp lineage undergoes speciation, resulting in two wasp species, each with a distinct symbiont composition.
July 9, 2025 at 7:00 PM
Reposted by Lucas Santana Souza
mariescopy.bsky.social
--PhD Publications by Sarah Garric--

#Photophysiology of the haploid form of the #cryptophyte Teleaulax amphioxeia
doi.org/10.1111/jpy....

Impaired photoacclimation in a #kleptoplastidic #dinoflagellate reveals physiological limits of early stages of #endosymbiosis
Impaired photoacclimation in a kleptoplastidic dinoflagellate reveals physiological limits of early stages of endosymbiosis
Dinophysis dinoflagellates use plastids stolen from prey. Garric et al. show that these plastids cannot synthesize a complete phycoerythrin, a crucial photosynthetic protein. Dinophysis thus relies on prey ingestion for photoacclimation. It is noteworthy that some Dinophysis have acquired phycoerythrin synthesis genes from cryptophytes during evolution.
www.cell.com
December 14, 2024 at 2:14 PM
Reposted by Lucas Santana Souza
plantenzo.bsky.social
You can find the study here:
Cook, N.M., Gobbato, G., Jacott, C.N. et al. Autoactive CNGC15 enhances root endosymbiosis in legume and wheat. Nature (2025). doi.org/10.1038/s415...
Autoactive CNGC15 enhances root endosymbiosis in legume and wheat - Nature
Nuclear calcium oscillations initiate plant–arbuscular mycorrhiza and nitrogen-fixing bacteria symbioses for nutrient acquisition, with a newly discovered autoactive CNGC15 mutant enhancing ...
doi.org
January 24, 2025 at 7:37 AM