¿Qué es Sukunaarchaeum, el microbio al filo de la vida? El microbio Sukunaarchaeum, de genoma mínimo, mueve el límite de la vida; conserva ribosomas, sin apenas metabolismo y depende de su huésped. Es una arquea extremada­mente minimalista, detectada por p...

¿Qué es Sukunaarchaeum, el microbio al filo de la vida? #Sukunaarchaeum #Ciencia #Microbiología #Arqueas #Genómica #VidaCelular #Biología #DPANN #Investigación #Océano #12dediciembre #felizviernes #NoticiasCiencia #España #Divulgación
donporque.com/que-es-sukun...

Phylogenetic reconciliation supports a methanogenic ancestor of the Archaea and a derived origin for host-associated lineages The phylogeny of the Archaea continues to be revisited and revised as new groups are discovered and phylogenetic methods improve, but key questions about their early evolution remain. It has been sugg...

#Archaea, #DPANN, #phylogenetic_reconciliation
New preprint online!
www.biorxiv.org/content/10.1...

Nested parasitism in hypersaline environments: viruses and virus satellites of haloarchaea and their nanosized cellular symbionts It is increasingly recognized that hyperparasitism, whereby a parasite exploits a host which itself is a parasite, is a common phenomenon across ecosystems and domains of life. Here, to explore hyperp...

After 3 years of work, we are thrilled to submit this preprint. In collaboration with DEEM Team, we uncovered the complex interactions between haloarchaea, nanohaloarchaea, and their respective viruses and virus satellites. See🧵

www.biorxiv.org/content/10.1...

#DPANN #ArchaealViruses #Satellite

Cell-to-cell interactions revealed by cryo-tomography of a DPANN co-culture system - Nature Communications DPANN is a widespread and diverse group of archaeal obligate ectosymbionts that depend on their host for proliferation. Here, authors use cryo-ET and proteomics to reveal intercellular proteinaceous n...

4) intercellular communication, and host adaptation in response to #DPANN attachment remain unknown.

Here, we use electron cryotomography (cryo-ET) to show that the #Microcaldus #variisymbioticus ARM-1 may interact with its host, Metallosphaera javensis AS-7

2) Did these #ectosymbionts adapt better and better to the development of increasingly complex organisms?

We briefly name a group of #archaea that could be involved in this pathway:

#DPANN is a widespread and diverse group of #archaea characterised by their small size,