Brad Weiler

@bradweilerdives.bsky.social

Postdoc @miamirosenstiel.bsky.social and NOAA AOML Coral Program 🪸 | PhD from @delCampoLab | Coral Holobiont Function and Composition through Health and Disease 🔬🦠🧬

The symbiotic relationship between coral and algae was cemented when the animal began ferrying bicarbonate molecules into the symbiosome through a transporter protein, which the algae photosynthesized into glucose and then fed back to its host. “I think about it as an everlasting gobstopper” -Cleves

Christie Wilcox@nerdychristie.bsky.social · 4w ago

Corals and the algae that they host are touted as one of the greatest partnerships in nature. But this symbiosis probably didn't start out harmoniously. In this edition of #ScienceAdviser: the story of a beautiful friendship that began as a break-in www.science.org/content/arti... @science.org 🧪

The symbiotic algae (purplish brown) in the tissues of this Galaxea fascicularis coral (green) may have initially intended to steal from the animal, not partner with it.  Brandon Sanchez Mejia/UC Berkeley

"Pokemon" is short for "pocket monsters". "Digimon" is short for "digital monsters". Therefore, "salmon" is short for "saltwater monsters". (You might object: salmon spend a big part of their life in freshwater. But pokemon spend a big part of their life outside pockets too!)

Amazing opportunity to work with incredible scientists🧑‍🔬. Please share widely!! #ProtistsOnSky #coralreefs

Institut de Biologia Evolutiva (IBE)@ibe-barcelona.bsky.social · last mo.

📣 WE ARE HIRING! 📣 Join @ibe-barcelona.bsky.social with a new Laboratory Technician position in #delCampoLab!🤿🦠 🧬In the #CORALPROS project investigates the protists (unicellular eukaryotes) living within corals. #JoinOurTeam 👉https://shorturl.at/vGg1E

Our method, savont, for generating amplicon sequence variants (ASVs) for long-read amplicons is now on bioRxiv. Work with @lh3lh3.bsky.social and help from @mkddueholm.bsky.social and team (Marie Riisgaard-Jensen, @kirk3gaard.bsky.social, Kasper Skytte Andersen) github.com/bluenote-157... 1/6

bioRxiv Bioinfo@biorxiv-bioinfo.bsky.social · 2mo ago

Sensitive long-read amplicon sequence variant recovery with savont https://www.biorxiv.org/content/10.64898/2026.05.26.727271v1

We identified a high abundance of vibrios associated with ichthyocarbonates with the metabolic potential for CaCO3 precipitation. Specifically, we observe the expression of ureR by Photobacterium damselae subsp. damselae, which can induce the precipitation of CaCO3 via the production of bicarbonate!

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In the last paper from my PhD (out now in Microbiome): how do deep-sea sponges survive where food is scarce? Their microbiomes oxidise ammonia & break down hard-to-degrade carbon to fuel mixotrophic growth. doi.org/10.1186/s401... #symbiosis! #Metagenomics 🧪 #Bioinformatics 🧬💻 #SymbioSky

Ammonia oxidation and recalcitrant carbon degradation fuel mixotrophic growth in the symbiont community of a deep-sea sponge - Microbiome

Background Sponges are important members of shallow-water, benthic ecosystems, where they often rely on their microbial symbionts to acquire organic or inorganic carbon. Sponges are also found in the deep sea, however, how they metabolically interact there with their symbionts remains underexplored. Here, we combined metagenomic, metatranscriptomic and stable-isotope labelling approaches to investigate the metabolic activities of the microbial community of the deep-sea sponge Calyx sp. Results Approximately 84% of the total estimated microbial abundance was composed of nine heterotrophic phyla, whilst the remaining 16% consisted of two autotrophic ammonia-oxidising archaea. Metatranscriptomic analysis revealed the high expression of genes involved in the degradation of recalcitrant polysaccharides of algal origin, suggesting that an undegraded fraction of marine snow plays a role in the nutrition of this deep-sea holobiont. Additionally, we detected active ammonia oxidation and carbon fixation pathways in the autotrophic community members and, through ex situ incubations with labelled carbonate show a potential to fix 13.67 mg CO2 per g dry weight in a year. Conclusions This study highlights the mixotrophic lifestyle of a deep-sea sponge microbiome, expanding our knowledge of the sponge–microbe symbiosis in the oligotrophic environment of the deep ocean. Video Abstract Graphical Abstract

doi.org

If you're a senior PhD student or recent graduate interested in doing work at the intersection of AI and microbial genomics and/or microbiomes, please feel free to reach out to discuss the possibility of applying together for an MIT Novo Nordisk Fellowship engineering.mit.edu/novo-nordisk

Novo Nordisk Fellowship

Potential areas of focus for postdoctoral fellows participating in the MIT-Novo Nordisk Postdoc Program include, but are not limited to, the following: Your complete application should include: In the...

engineering.mit.edu

Postdocs and early-career researchers, this is for YOU! Join ASM’s FREE webinar, "Building Impact, Not Just CVs: Thriving with Limited Resources." 📅 April 7 | ⏰ 10–11 a.m. ET 💻 Virtual Register here: asm.social/2QY

A hand turning a dial with the word "impact" printed on it. The dial includes "low", "medium" and "high" options.