#endosymbiont — Public Fediverse posts

This is pretty cool. Not often somebody gets to announce the discovery of a whole new branch of life. The cells contain mitochondria unlike any known before. Features support the #endosymbiont theory of #mitochondria origins, that they were originally separate animals but one got swallowed by something else but didn’t die. Instead lived and we’re all descended from that pair, a dom & a sub?🤷🏽 #science
https://www.sciencealert.com/newly-discovered-organism-could-represent-a-whole-new-branch-in-the-tree-of-life

Scientists discover more #mitochondria-like #symbionts with surprising metabolic capacities https://phys.org/news/2024-12-scientists-mitochondria-symbionts-metabolic-capacities.html

Genetic potential for aerobic respiration and #denitrification in globally distributed respiratory #endosymbionts https://www.nature.com/articles/s41467-024-54047-x

"They found a unique #bacterium that lives inside a ciliate (#protists) and provides it with energy... reminiscent of #mitochondria, with the key difference that the #endosymbiont derives energy from the respiration of nitrate, not oxygen."

In our study “Wolbachia in Antarctic terrestrial invertebrates: Absent or undiscovered?” https://doi.org/10.1111/1758-2229.70040 we summarise the diversity of terrestrial #invertebrates and discuss why #Wolbachia - the common #endosymbiont of invertebrates was not found in #Antarctica. Literature and in silico search did not show the presence of Wolbachia in samples collected in Antarctica. Samples of species which are prevalent in Antarctica but collected on other continents can be infected with Wolbachia.

Von der Symbiose zum Organell: In einer Meeresalge ist ein bakterieller Symbiosepartner dabei, sich in ein neuartiges Zellorganell zu verwandeln, das Stickstoff fixierern kann. #Organell #Endosymbiose #Endosymbiont #Stickstoff #Evolution
https://www.scinexx.de/news/biowissen/erstes-stickstoff-speicherndes-organell-entdeckt/

Very interesting story about the #nitroplast, a potential new organelle resulting from #symbiosis between nitrogen-fixing bacteria and the #microalgae *Braarudosphaera bigelowii* based on subcellular imaging and proteomic data.
Possibly a new model to study the evolutionary transition from #endosymbiont to organelle.
https://www.science.org/doi/10.1126/science.adk1075

With a Perspective comment by Ramon Massana
https://www.science.org/doi/10.1126/science.ado8571
#evolution #protists

.@aquabolina & @TheLadybirdman explore a #PLOSBiology study of a novel male-killer #endosymbiont hidden by co-infection & host resistance, highlighting complexity of host-microbe interactions in natural systems. Primer: https://plos.io/3ziNMtx Paper: https://plos.io/3TEicQe

.@aquabolina & @TheLadybirdman explore a #PLOSBiology study of a novel male-killer #endosymbiont hidden by co-infection & host resistance, highlighting complexity of host-microbe interactions in natural systems. Primer: https://plos.io/3ziNMtx Paper: https://plos.io/3TEicQe

.@aquabolina & @TheLadybirdman explore a #PLOSBiology study of a novel male-killer #endosymbiont hidden by co-infection & host resistance, highlighting complexity of host-microbe interactions in natural systems. Primer: https://plos.io/3ziNMtx Paper: https://plos.io/3TEicQe

Latest on #leech #symbionts!

Evolution of an alternative genetic code in a leech #endosymbiont

https://doi.org/10.1101/2023.03.27.534433

Great collaboration with friends and colleagues @Alejand27087755 & @sebastian_kvist 1/4

@DOME_Vienna @ib_unam @ROMtoronto @eebtoronto @naturhistoriska

Unexpected #endosymbiont complexity in a fly species, wherein a #Wolbachia bacterium that kills males lives alongside a second strain that causes #CytoplasmicIncompatibility in the same host @MosWhisperer @drosobachia @PEARG_Lab &co #PLOSBiology https://plos.io/3TEicQe

Unexpected #endosymbiont complexity in a fly species, wherein a #Wolbachia bacterium that kills males lives alongside a second strain that causes #CytoplasmicIncompatibility in the same host @MosWhisperer @drosobachia @PEARG_Lab &co #PLOSBiology https://plos.io/3TEicQe

Unexpected #endosymbiont complexity in a fly species, wherein a #Wolbachia bacterium that kills males lives alongside a second strain that causes #CytoplasmicIncompatibility in the same host @MosWhisperer @drosobachia @PEARG_Lab &co #PLOSBiology https://plos.io/3TEicQe

#Marinomyxa marina presence in #Halophila stipulacea #meadow near a #fish farm in south #Evoikos Gulf (#Greece)

https://www.sciencedirect.com/science/article/abs/pii/S0304377022001279

#Invasion #marine #coastal #Endosymbiont #parasite #invasive

#Advent Day14: #Drosophila hydei was originally a South American #Cactus specialist, but is now a global commensal https://www.sciencedirect.com/science/article/pii/S1055790312001789 and is the UK’s only common repleta-group fly. It has been studied as a host to parasitic mites https://doi.org/10.1017/s0031182016000305 and for a fascinating interaction between #Parasitoid wasps and defensive #Endosymbiont Spiroplasma https://doi.org/10.1371/journal.pone.0012149 . It also briefly held the crown for the longest drosophilid sperm, at around 10 body-lengths https://www.pnas.org/doi/abs/10.1073/pnas.91.20.9277

How cells gain control over their bacterial #symbionts https://phys.org/news/2022-12-cells-gain-bacterial-symbionts.html

Host-#symbiont interactions in #Angomonas deanei include the evolution of a host-derived dynamin ring around the #endosymbiont division site https://www.cell.com/current-biology/fulltext/S0960-9822(22)01776-6

Similar to #mitochondria and #chloroplasts, the #genome of the #bacterium is already reduced... The integration is sufficiently advanced for cell division to occur synchronously: When the host divides, so does the bacterium.

Paper alert 🚨
Report of a novel “Ca. Trichorickettsia” representative #Endosymbiont of the #Ciliate Pseudokeronopsis (Spirotrichea, Urostylida)

https://doi.org/10.3390/d14121032

#protists #MicrobialEukaryotes #endosymbiosis