Alessandro Garritano
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alegarritano.bsky.social
Alessandro Garritano
@alegarritano.bsky.social
🇧🇷 Marine biologist 🌊 & bioinformatician🧬 @UNSW exploring the secrets of bacterial metabolism & life in the deep-sea .
✈️ geek in my free time
Pinned
Deep-sea menage à trois? A sponge, an archaeon, and a bacterium rely on carbon & vitamin B12 exchange — until a virus crashes the party! Discover how ammonia-oxidation and viral lysis drive this unique #symbiosis! doi.org/10.1093/isme... #Metagenomics 🧪
#Bioinformatics 🧬💻 #SymbioSky
Simple Porifera holobiont reveals complex interactions between the host, an archaeon, a bacterium, and a phage
Abstract. The basal metazoan phylum Porifera (sponges) is increasingly used as a model to investigate ecological and evolutionary features of microbe–anima
doi.org
Reposted by Alessandro Garritano
NEW pub in @science.org 🥳

Is it sponges (panels A & B) or comb jellies (C & D) that root the animal tree of life?

For over 15 years, #phylogenomic studies have been divided.

We provide new evidence suggesting that...

🔗: www.science.org/doi/10.1126/...
November 13, 2025 at 8:34 PM
Here, we show that deep below, corals and feather stars don’t just share space – they share microbes. Endozoicomonadaceae + Nitrosopumilaceae inhabit both hosts in a “promiscuous” symbiosis that may fuel nitrogen cycling in the deep sea.
doi.org/10.1186/s401... 🌊🪸🧪 #Bioinformatics 🧬💻 #SymbioSky
November 13, 2025 at 6:11 AM
Reposted by Alessandro Garritano
Drift, dispersal limitation and homogeneous selection as a key processes shaping prokaryotic community assembly in marine sediments academic.oup.com/ismecommun/a... #jcampubs
October 24, 2025 at 5:29 AM
Reposted by Alessandro Garritano
Happy to share that the paper describing Autocycler is now 100% up:
doi.org/10.1093/bioi...
(1/3)
Autocycler: long-read consensus assembly for bacterial genomes
AbstractMotivation. Long-read sequencing enables complete bacterial genome assemblies, but individual assemblers are imperfect and often produce sequence-l
doi.org
September 29, 2025 at 4:11 AM
Reposted by Alessandro Garritano
🌐 Global PhD & Faculty Opportunities Open Now! 🧬🐛
Discover a wide range of PhD and faculty-level openings across microbiology, ecology, evolutionary biology, environmental science, and more, spread across top institutions worldwide.

tinyurl.com/3jknvu4y
ecoevojobs.net 2025-26
tinyurl.com
August 20, 2025 at 9:59 AM
New review out in Annual Review of Marine Science! 🌊🧫
We explore how ammonia-oxidising microbes form symbioses with marine hosts - fueling the nitrogen cycle, fixing carbon, and possibly feeding their hosts.
#Metagenomics 🧪
#Bioinformatics 🧬💻 #SymbioSky
🔗 doi.org/10.1146/annu...
Symbiotic Ammonia Oxidation in the Marine Environment | Annual Reviews
Ammonia oxidation is a fundamental step in the marine nitrogen cycle, catalyzing the conversion of ammonia to nitrite or nitric oxide and generating reductive power for the autotrophic growth of micro...
doi.org
August 7, 2025 at 8:18 AM
Great work on Asgardarchaea by @snobsi.bsky.social, @juliameltzer.bsky.social, @xabivc.bsky.social and collaborators
So excited to finally show the world a project years in the making. A huge group effort with lots of expertise leading to a unique #Asgard syntrophy story. Very fortunate to have been involved in cultivating and analysing this wonderful organism ❤️
Our new preprint with a new #Asgard from stromatolites (and its Desulfobacterota companion). Complete circularised genomes of both, cool #cryoem images, protein modelling, etc

Big group effort with a lot of people involved
#archaeasky #archaea
www.biorxiv.org/content/10.1...
July 23, 2025 at 11:03 PM
This looks like a great resource for drawing metabolic schemes and the proteins involved. Lost countless hours looking for the subcellular location of specific enzymes and very keen to give this a try
December 9, 2024 at 11:18 PM
Reposted by Alessandro Garritano
Keeping your symbiosis genes on a plasmid is a smart move if you have multiple potential hosts. Here a gut bacterial symbiont, but same is true for N-fixing Rhizobia.
www.science.org/doi/10.1126/...
A conserved bacterial genetic basis for commensal-host specificity
Animals selectively acquire specific symbiotic gut bacteria from their environments that aid host fitness. To colonize, a symbiont must locate its niche and sustain growth within the gut. Adhesins are...
www.science.org
December 7, 2024 at 1:17 PM
Hoje, nosso último artigo ganhou destaque no Brasil! 🇧🇷 Nomeamos uma nova ordem e família viral em homenagem a dois deuses da mitologia brasileira. Um pequeno passo para valorizar a ciência e cultura nacionais.
www.bbc.com/portuguese/a...

História completa: academic.oup.com/ismej/articl...
O vírus descoberto nas profundezas da costa do RJ que ganhou nome da mitologia indígena - BBC News Brasil
Pesquisa revelou a existência de um intricado sistema de simbiose que garante a sobrevivência em ambientes inóspitos e pode render no futuro novas soluções para lidar com as mudanças climáticas.
www.bbc.com
December 4, 2024 at 7:03 AM
Reposted by Alessandro Garritano
‘A place of joy’: why scientists are joining the rush to Bluesky

For me, it certainly feels good to be here!

@natureportfolio.bsky.social @bsky.app

www.nature.com/articles/d41...
‘A place of joy’: why scientists are joining the rush to Bluesky
Researchers say the social-media platform — an alternative to X — offers more control over the content they see and the people they engage with.
www.nature.com
November 22, 2024 at 6:49 AM
Deep-sea menage à trois? A sponge, an archaeon, and a bacterium rely on carbon & vitamin B12 exchange — until a virus crashes the party! Discover how ammonia-oxidation and viral lysis drive this unique #symbiosis! doi.org/10.1093/isme... #Metagenomics 🧪
#Bioinformatics 🧬💻 #SymbioSky
Simple Porifera holobiont reveals complex interactions between the host, an archaeon, a bacterium, and a phage
Abstract. The basal metazoan phylum Porifera (sponges) is increasingly used as a model to investigate ecological and evolutionary features of microbe–anima
doi.org
November 21, 2024 at 8:09 PM
Nice collaboration with a great team. Congrats to @lilly_hill and Camila Messias for the countless works of work. This is a great isolation method for anyone studying in hospite Symbiodiniaceae out there. 🧪 #Bioinformatics 🧬💻

www.sciencedirect.com/science/arti...
March 22, 2024 at 6:03 AM
A nice paper on microbial dark matter revealing that in situ devices increase coral's microbes culturability up to 570% is out on iScience 🧪. This device, initially used in soils, has proved to be useful in marine sponges and, now, in corals as well.
www.sciencedirect.com/science/arti...
#SymbioSky
November 14, 2023 at 10:01 PM
Finally started migrating from X to bsky and hoping to connect with more people interested in #Bioinformatics 🧬💻. Thanks @amanzanom.bsky.social for all the tips so far and if someone out there have any good tips, please let me know!
November 7, 2023 at 11:48 PM