The Nitroplast, a Nitrogen-Fixing Organelle https://schaechter.asmblog.org/schaechter/2024/07/the-nitroplast-a-nitrogen-fixing-organelle.html @STCmicrobeblog

Nitrogen-fixing organelle in a marine alga https://pubmed.ncbi.nlm.nih.gov/38603509/

"With its reduced genome size, metabolic dependency, and synchronous division, the #nitroplast is now an intrinsic part of the B. bigelowii cell architecture. It also offers another beautiful example of how time and #evolution provide the fabric for continuous biological innovations."

#protists #algae #microbes #bacteria #symbiosis #genomics

Discovery of Nitrogen-Fixing Cell-organelle Nitroplast in a Eukaryotic Algae   
Biosynthesis of proteins and nucleic acid require nitrogen however atmospheric nitrogen is not available to eukaryotes for organic synthesis............
#cyanobacteria #eukaryoticsignatureproteins #nitrogenfixation #nitroplast #prokaryotes
Umesh Prasad

https://www.scientificeuropean.co.uk/sciences/biology/discovery-of-nitrogen-fixing-cell-organelle-nitroplast-in-a-eukaryotic-algae/

TIL: a new organelle evolved through endosymbiosis was discovered, which can fix nitrogen: a #nitroplast

https://arstechnica.com/science/2024/04/researchers-find-a-new-organelle-evolving/

(the other two are mitochondria and chloroplasts, making it just three?)

Interestingly, #wikipedia does not yet have a entry: https://en.wikipedia.org/wiki/Nitroplast

Fascinating to see science in progress :-)

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

Scientists discover first nitrogen-fixing organelle https://news.ucsc.edu/2024/04/nitrogen-fixing-organelle.html

Nitrogen-fixing organelle in a marine alga https://www.science.org/doi/10.1126/science.adk1075

"The #organelle is the 4th example in history of primary #endosymbiosis — the process by which a prokaryotic cell is engulfed by a eukaryote and evolves beyond #symbiosis into an organelle... It’s very rare that organelles arise from these types of things... the #nitroplast appears to have evolved about 100 million years ago"

#protists #algae #microbes