Lauren Queiss

Lauren Queiss

@lqueiss.bsky.social

Fascinated by viruses, virus-virus interactions, & all things EM ๐Ÿ”ฌ @mpimarinemicrobio.bsky.social #Viruses #Vesicles #Microscopy #Microbes #Bacteria #Archaea #Protists

227 followers307 following8 posts

Lauren Queiss reposted

Somewhere, over the rainbow ๐ŸŒˆ (at the @biozentrum.unibas.ch), Sofie & Wojciech discovered how special cyanobacteria adapt to far-red light ๐Ÿšจ by completely remodeling their photosynthetic proteins and membranes ๐ŸŒฑ. An exquisite #TeamTomo study that spans scales and introduces hyperspectral CLEM. ๐ŸŒŽ๐ŸŒŠ๐ŸŒพ๐Ÿ”ฌ๐Ÿงช

sofie.rec@sofie-dot-rec.bsky.social

Iโ€™m very excited to share the first big project from my PhD (my first proper-first, yay!) where we use cryoET and a fun new flavour of CLEM to study the re-organisation of photosynthetic machinery of cyanobacteria growing beyond the red limit of light. doi.org/10.64898/202...

Lauren Queiss reposted

Beneath every wastewater treatment plant is a hidden world of microbial heroes. From bacteria-packed flocs to protozoa and nitrifiers, these tiny organisms clean our water, remove pollutants, recycle nutrients, and help protect public health every single day grupos.eez.csic.es/imili/wp-con...

grupos.eez.csic.eshttps://grupos.eez.csic.es/imili/wp-content/uploads/2025/07/biotechnology-life-in-wastewater-treatment-plants.pdf

Lauren Queiss reposted

Happy World Phage Day to all who celebrate... ... delighted to share new work led by Jacopo Marchi, Chadiga Khalek & joint w/Remy Chait on stable coexistence of phage with migrating bacteria driven by the forces of infection, lysis, and chemotaxis. A ๐Ÿงต at the interface between known & unknown.

science.orgStable coexistence and transport of lytic phage infections with migrating bacterial hostsBacteriophages (phages), viruses that exclusively infect bacteria, coexist with their bacterial hosts across diverse environments at densities exceeding 107ย per milliliter in marine surface waters, 10...

Lauren Queiss reposted

๐Ÿšจ New preprint ๐Ÿšจ Weโ€™ve discovered millions of viruses from sequencing data but we donโ€™t always know who they infect. Our new tool, VHAMSTeR generates broad virus host predictions across the tree of life (prokaryote, plant, animal, fungi and protist hosts)ย A thread ๐Ÿงต๐Ÿ‘‡ www.biorxiv.org/content/10.6...

biorxiv.orgViral host assignment across the tree of life with VHAMSTeRViruses infect organisms across the tree of life, but many are not associated with a specific host. Here we present VHAMSTeR (Virus Host Assignment Model using Sequence Transformers and Reading-frames...

Lauren Queiss reposted

Lauren Queiss reposted

Our description of fire amoeba, ๐˜๐˜ฏ๐˜ค๐˜ฆ๐˜ฏ๐˜ฅ๐˜ช๐˜ข๐˜ฎ๐˜ฐ๐˜ฆ๐˜ฃ๐˜ข ๐˜ค๐˜ข๐˜ด๐˜ค๐˜ข๐˜ฅ๐˜ฆ๐˜ฏ๐˜ด๐˜ช๐˜ด, is now online at Cell! Thanks @oliverio.bsky.social and amazing team for questioning the limits of eukaryotes! ๐Ÿ”ฅ www.cell.com/cell/fulltex...

cell.comA geothermal amoeba sets a new upper temperature limit for eukaryotesThe amoeba Incendiamoeba cascadensis demonstrates that eukaryotic life can withstand temperatures beyond what was thought possible and sheds light on molecular strategies for survival in extreme heat.

Lauren Queiss reposted

at first a preprint, then in STC ( smallthingsconsidered.blog/schaechter/2...) ...and now out in ๐˜Š๐˜ฆ๐˜ญ๐˜ญ...

H. B. Beryl Rappaport@hbrappap.bsky.social

Our description of fire amoeba, ๐˜๐˜ฏ๐˜ค๐˜ฆ๐˜ฏ๐˜ฅ๐˜ช๐˜ข๐˜ฎ๐˜ฐ๐˜ฆ๐˜ฃ๐˜ข ๐˜ค๐˜ข๐˜ด๐˜ค๐˜ข๐˜ฅ๐˜ฆ๐˜ฏ๐˜ด๐˜ช๐˜ด, is now online at Cell! Thanks @oliverio.bsky.social and amazing team for questioning the limits of eukaryotes! ๐Ÿ”ฅ www.cell.com/cell/fulltex...

Lauren Queiss reposted

Lauren Queiss reposted

(archaeal) cell divisionists take note ๐Ÿ‘‡ no, the diderm ๐˜๐˜จ๐˜ฏ๐˜ช๐˜ค๐˜ฐ๐˜ค๐˜ค๐˜ถ๐˜ด did ๐—ป๐—ผ๐˜ invent the nucleus, ๐—ฏ๐˜‚๐˜ something pretty similar to 'closed mitosis' (as in yeast). look @sbulgheresi.bsky.social ! #MicroSky #Archaea #ArchaeaSky

Florian Mayer@florianmayer.bsky.social

Excited to share our preprint on Ignicoccus cell divison: only the inner membrane divides, progeny cells accumulate in cell clusters and pop-out! www.biorxiv.org/content/10.6... Great work with the labs: @buzzbaum.bsky.social @curiousdina.bsky.social @anja1.bsky.social @tbharat-lab.bsky.social

Lauren Queiss reposted

Lauren Queiss reposted

Salty water flowing through Antarcticaโ€™s Blood Falls contains a distinct community of marine-specific microorganisms, providing evidence that the brine system beneath the glacier has a marine origin, according to a paper in Nature Geoscience. go.nature.com/3S6Csxw โš’๏ธ๐ŸŒŽ๐Ÿงช

Lauren Queiss reposted

Lauren Queiss reposted

Lauren Queiss reposted

Lauren Queiss reposted

๐Ÿ”ฌ ๐“๐Ž๐ƒ๐€๐˜: ๐ข๐•๐จ๐Œ ๐Ÿ๐ŸŽ๐Ÿ๐Ÿ” ๐Ž๐ง๐ฅ๐ข๐ง๐ž ๐’๐ž๐ซ๐ข๐ž๐ฌ โ€“ ๐’๐ž๐ฌ๐ฌ๐ข๐จ๐ง ๐Ÿ“: โฃโฃโฃโฃโฃโฃ ๐†๐ข๐š๐ง๐ญ ๐•๐ข๐ซ๐ฎ๐ฌ๐ž๐ฌโฃโฃโฃโฃโฃ โฃโฃโฃโฃโฃ โฃโฃ๐Ÿ—“ 25 Mar 2026โฃโฃโฃโฃโฃโฃโฃ โฐ 17:00 CET | 12:00 EDT | 09:00 PDTโฃโฃโฃโฃโฃโฃโฃ โฃโฃ๐‰๐จ๐ข๐ง: eu02web.zoom-x.de/j/6813954424... โฃโฃโฃโฃโฃ ๐Ÿ‘‰ ๐‘๐ž๐ ๐ข๐ฌ๐ญ๐ž๐ซ for links & updates:โฃโฃโฃโฃโฃโฃโฃ ๐Ÿ”— isvm.org/ivom โฃโฃโฃโฃโฃโฃโฃ #iVoM#Virology

Lauren Queiss reposted

Redox distribution of Asgard archaea and co-occurring taxa in microbial mats from an early Proterozoic ecosystem analog | bioRxiv https://www.biorxiv.org/content/10.64898/2026.03.20.713109v1?rss=1

biorxiv.orgRedox distribution of Asgard archaea and co-occurring taxa in microbial mats from an early Proterozoic ecosystem analogEukaryotes originated from the symbiosis of an Asgard archaeon, the alphaproteobacterial ancestor of mitochondria, and possibly additional bacterial contributions. This transition occurred in redox-transition environments such as microbial mats or shallow sediments ~2 billion years ago, when atmospheric oxygen was far lower than today. We investigated Asgard-enriched microbial mats from the low-oxygen, sulfidic Catherine volcano lake (Afar region, Ethiopia), mimicking early Proterozoic conditions. 16S rRNA gene metabarcoding, metagenomics, and metagenome-assembled genome analyses across redox-stratified layers of in situ and mesocosm-maintained mats revealed that Asgardarchaeota thrived in the sulfate-reduction zone, mainly co-occurring with Desulfurobacterota-Myxococcota, among others. Lokiarchaeia and Thorarchaeia preferred anoxic layers. Within Heimdallarchaeia, Heimdallarchaeales were enriched in upper layers, correlating with oxygen-tolerant hydrogenase and sulfate-reduction genes, and Hodarchaeales, in anoxic layers, correlating with methanogenesis. Although reactive-oxygen-species defense mechanisms were widespread, Asgardarchaeota lacked aerobic respiration. These results support the idea that Asgard archaea engaged primarily in syntrophic interactions with sulfate-reducers under early-Earth-like conditions. ### Competing Interest Statement The authors have declared no competing interest. European Research Council, https://ror.org/0472cxd90, 101141745, 787904 Agence Nationale de la Recherche, ANR-23-CE02-0016-01, ANR-22-CE02-0012 Gordon and Betty Moore Foundation, https://ror.org/006wxqw41, GBMF9739

Lauren Queiss reposted

Lauren Queiss reposted

#MicrobiologyMonday: Marine sediments store vast amounts of carbon. By infecting and lysing microbes, viruses shape biogeochemical cycling from coastal zones to the deep sea and influence long-term carbon storage. Get the story in #AppEnvMicro: asm.social/2Qv

Lauren Queiss reposted

๐ŸšจPreprint! Happy to share the research from my PhD โ€œGenome delivery of a contractile tailed phage and its superinfection exclusion mechanismโ€. We use cryoEM to study the genome ejection of the phage T4, revealing how the tape measure protein regulates the process. www.biorxiv.org/content/10.6...

Lauren Queiss reposted

โžก๏ธ preprint from the lab! Bacteria have loads of antiviral defences in their mobile genetic elements (MGEs). So when MGEs move between bacteria, the defences move with them, generating a fast turnover of defences in bacteria. But what about the antiviral defence turnover in the MGEs themselves? ๐Ÿค” ๐Ÿงต๐Ÿ‘‡

biorxiv.orgbiorxiv.org

Lauren Queiss reposted

Final version @nature.com of our paper describing unconventional multicellular development in a choanoflagellate inhabiting an extreme environment. A ton of new data since the first @biorxivpreprint.bsky.social preprint (which we've kept updating). A brief ๐Ÿงต (carried over from the old place)

Nature Portfolio@natureportfolio.nature.com

A study in Nature shows that the single-celled form of a tiny, aquatic organism can turn into a multicellular version by three different routes. The discovery adds insight to the possible origins of multicellular life, suggesting a previously unrecognized degree of flexibility. ๐Ÿงช

Lauren Queiss reposted