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Items tagged with: protists
Happy to share the latest manuscript from our lab, in which we propose that eukaryotes evolved from a genomic chimera of Asgard archaea and giant viruses.
https://www.biorxiv.org/content/10.1101/2024.04.22.590592v1
This is a controversial topic, but we believe we have strong evidence to suggest a critical viral role in eukaryogenesis.
#viruses #protists #eukaryotes #evolution #TreeOfLIfe #archaea
Chimeric Origin of Eukaryotes from Asgard Archaea and Ancestral Giant Viruses
The details surrounding the evolution of complex cells remain some of the most enduring mysteries in biology.bioRxiv
#Mutualism on the edge: Understanding the #Paramecium–#Chlorella symbiosis https://journals.plos.org/plosbiology/article?id=10.1371%2Fjournal.pbio.3002563
"Exploring the mechanisms that underpin #symbiosis requires an understanding of how these complex interactions are maintained in diverse model systems. The ciliate #protist, Paramecium bursaria, offers a valuable insight into how emergent endosymbiotic interactions have evolved."
#protists #algae #microbes #ciliates
Mutualism on the edge: Understanding the Paramecium–Chlorella symbiosis
Exploring the mechanisms that underpin symbiosis requires an understanding of how these complex interactions are maintained in diverse model systems.journals.plos.org
Nice paper examining virophage-mediated antiviral defense in protists!
Endogenous virophages are active and mitigate giant virus infection in the marine protist Cafeteria burkhardae
Tom Cavalier-Smith prize DEADLINE EXTENDED https://www.isep-protists.com/post/tcs-prize-deadline-extended
We are pleased to announce that we are extending the deadline for Tom Cavalier-Smith prize nominations to January 31st, and that in light of the complicating factor of the Covid-19 pandemic, we are extending eligibility to 4 years post-PhD.
The Tom Cavalier-Smith prize recognizes contributions to evolutionary #protistology, or related fields (e.g. #protists #biology, #biodiversity or #ecology), by #EarlyCareerResearchers.
Tom Cavalier-Smith prize DEADLINE EXTENDED
We are extending the deadline for Tom Cavalier-Smith prize nominations to January 31stISEP
Single-celled #protists in the #guts of #animals thrive without #mitochondria, study finds.
#oxymonads #evolution #phylogenomics
https://phys.org/news/2023-12-single-celled-protists-guts-animals-mitochondria.html
Single-celled protists in the guts of animals thrive without mitochondria, study finds
Almost all eukaryotic organisms, from plants and animals to fungi, can't survive without mitochondria, which generate chemical energy using oxygen.Science X (Phys.org)
New #ISEPpapers! The #protist #Aurantiochytrium has universal subtelomeric rDNAs and is a host for #mirusviruses: Jackie Collier et al. https://www.cell.com/current-biology/fulltext/S0960-9822(23)01368-4
#protists #microbes #protistology #microbiology #viruses #virology #genomics
Postdoc position in microbial OMICS and microplastics (fixed-term for 36 months) (m/f/x) at Leibniz-Institut für Gewässerökologie und Binnenfischerei
We're looking for: Postdoc position in microbial OMICS and microplastics (fixed-term for 36 months) (m/f/x) (Full or Part Time) • Neuglobsow, Stechlin, Deutschlandkarriere-igb.softgarden.io
Long-read-based genome assembly reveals numerous endogenous viral elements in the green algal bacterivore Cymbomonas tetramitiformis
Abstract. The marine tetraflagellate Cymbomonas tetramitiformis has drawn attention as an early diverging green alga that uses a phago-mixotrophic mode of nutriGyaltshen, Yangtsho (Oxford University Press)
How did #eukaryotes evolve for extreme temps? https://www.futurity.org/high-temp-eukaryotes-2972442-2/ #protists
#ExtremeEnvironments offer an unprecedented opportunity to understand #microbial #eukaryotic #ecology, #evolution, and #genome #biology: Hannah Rappaport & Angela Oliverio https://www.nature.com/articles/s41467-023-40657-4
“several lineages of #amoebae were often recovered from extremely high temperature environments. Studying those lineages may yield great insight into how eukaryotic cells can adapt to life in extremely hot environments.”
How did eukaryotes evolve for extreme temps? - Futurity
Researchers are investigating microbial eukaryotic life in extreme environments, like Lassen National Park's geothermal lake.Dan Bernardi-Syracuse (Futurity)
Hello everyone!
I’m an associate prof at Virginia Tech studying viral diversity. Lately my group has been focusing on giant viruses, but we are also interested in other protist viruses, and the role of viral endogenization in host genome evolution.
#GiantViruses #ViralDiversity #TreeOfLife #Protists #Microbiology #Bioinformatics #Evolution #Virology #Genomics
Recently we have been examining the strange and complex genes encoded in giant virus genomes!
https://doi.org/10.1093/femsre/fuad053
Important study from Bellas et al showing that protists have a huge diversity of endogenous DNA viruses in their genomes!
Large-scale invasion of unicellular eukaryotic genomes by integrating DNA viruses
https://www.pnas.org/doi/10.1073/pnas.2300465120
And a commentary about these exciting findings from @giant_virus and myself -
Endogenous DNA viruses take center stage in eukaryotic genome evolution
"To reflect the importance of microbes and to create a home for microbiology research using genetics, PLOS Genetics will be launching a new section on Microbial Genetics. "
https://journals.plos.org/plosgenetics/article?id=10.1371/journal.pgen.1010695
#microbiology #microbes #bacteria #protists #archaea
#eukaryotes #protists #evolution #anaerobes #mitochondria
https://journals.asm.org/doi/full/10.1128/msystems.00013-23?af=R
#protists
"The evidence suggests that the GSBP-spasmin protein complex is the functional unit of the mesh-like contractile fibrillar system, which, coupled with various other subcellular structures, provides the mechanism for repetitive ultrafast cell contraction and extension."
https://www.science.org/doi/10.1126/sciadv.add6550
#protists
Polyketide compounds and their analogues cause shellfish poisoning, and dinoflagellates may utilize a combination of Type I multi-domain and single-domain PKS proteins to synthesize them.
'Transcriptomic analysis of polyketide synthesis in dinoflagellate, Prorocentrum lima'
#protists #MicrobialEukaryotes
https://doi.org/10.1016/j.hal.2023.102391