Mastodawn

@kielkontrovers @tagesschau oh das finde ich krass und deutlich zu wenig differenziert. #Archeä die #Methan bildenden Bakterien waren mit die ersten auf diesem Planeten. Ich frage mal so, ähnlich undifferenziert den Ursprung des Lebens verbieten? Dann sollten wir aufpassen das kein Blatt in einen Teich oder See fällt. Alles sollte kompostiert werdern! Die Nutzung von #Biogas erlaubt es uns aus einem natürlichen Zersetzungsprozess den direkten Übergang von Organischen Lebens unabhängig von Tier oder Pflanze in #CO2 in einen gut steuerbaren Zwischenschritt Methan oder eben #Biogas zu gewinnen. Aus dem Biogas lässt sich übrigens viel einfacher co2 abscheiden als aus der Luft. Bei der Verbrennung von Methan aus Biogas wird dann final nicht mehr CO2 freigesetzt also bei der natürlichen Zersetzung aber mit Energiegewinnung.

cathill Dec 26

Humanity should not expect to be able to communicate with extraterrestrial life, considering that there are hardly any life forms on Earth that we are able to fully communicate with. How many species of plants, bacteria, archea, or protists can humans fully communicate with?
#aliens #extraterrestrials #firstcontact #language #interspeciescommunication #animals #plants #bacteria #archea #protists #humans #intelligentlife

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Keiran Rowell Jul 20, 2025

Gaze over this beautiful detail of the archeal ribosome, with the archea-only proteins in red. (The very core of the ribosome is thought to almost never change across all life)

Then have a look at the amazing H-bonding network of the catalytic peptide transfer ribosomal-RNA site (Fig. 2). The tRNA entry point gets blocked by a unique protein "dual ribosomal subunit inhibitor (Dri)" under stress conditions and locks everything into place (Fig. 4).

#archea #evolution #RNA

Keiran Rowell Jul 20, 2025

Structure of an archaeal ribosome reveals a
divergent active site and hibernation factor | Nature Micro

https://rdcu.be/ewZ3S

"Ribosomes translate mRNA into protein. Despite divergence in ribosome structure over the course of evolution, the catalytic site, known as the peptidyl transferase centre (PTC) is thought to be nearly universally conserved. Here we identify clades of archaea that have highly divergent ribosomal RNA sequences in the PTC."

#archea #structuralbiology #ribosome #cryoEM

Planetární ekolog Jun 1, 2025

Thaumarchaeota (Mikrobiologie 🦠)

Thaumarchaeota je archeální kmen, jehož vyčlenění z kmene Crenarchaeota bylo navrženo v roce 2008 na základě sekvenace genomu Cenarchaeum symbiosum. Tato změna byla dále podpořena sekvenací genomů Nitrosopumilus maritimus a Nitrososphaera gargensis v roce 2010. Jedná se o amoniak oxidující archea. Specifickým znakem tohoto kmene je membránový lipid crenarchaeol, který se vys...

https://cs.wikipedia.org/wiki/Thaumarchaeota

#Thaumarchaeota #Archea #Mikrobiologie

Marc Robinson-Rechavi May 29, 2025

#archea #xkcd

http://xkcd.com/3095

Archaea

xkcd

CellBioNews Mar 7, 2025

Simultaneous #aerobic and #anaerobic #respiration in a Yellowstone #thermophile challenges scientific norms

#mightymicrobes #extremophiles #chemolithotroph #genomic #metabolism #bacteria #archea #funded_by_NASA #funded_by_us

https://phys.org/news/2025-03-simultaneous-aerobic-anaerobic-respiration-yellowstone.html

Simultaneous aerobic and anaerobic respiration in a Yellowstone thermophile challenges scientific norms

Montana State University has long been a hub for research on the many unique features of nearby Yellowstone National Park, and now a doctoral student in one of the university's microbiology laboratories has published a paper on how some hot-spring-dwelling organisms thrive in their extreme environments.

Phys.org

American Naturaliﬆ Feb 26, 2024

Some plants are able to control soil nitrification by interfering with the activity of nitrifying bacteria and archea. Ardichvili et al. explore the consequences of control and plant preference for ammonium vs. nitrate on ecosystem productivity and more.
https://www.journals.uchicago.edu/doi/10.1086/729090

#plants #nitrifyingBacteria #archea #ammonium #nitrate #ecosystem

CellBioNews Sep 26, 2023

Newly discovered deep-sea #enzyme breaks down #PET plastic.

#bacteria #archea #microbes #PET46

https://phys.org/news/2023-09-newly-deep-sea-enzyme-pet-plastic.html

Newly discovered deep-sea enzyme breaks down PET plastic

Plastic pollution is increasingly affecting the health of coasts and oceans. One well-known problem is plastic bottles made from polyethylene terephthalate, or PET.

Phys.org

CellBioNews Jul 7, 2023

#Extracellular #cytochrome #nanowires appear to be ubiquitous in #microbes.

#bacteria #archea #Geobacter #bioinformatics #electron_transport #Pyrobaculum

https://phys.org/news/2023-07-extracellular-cytochrome-nanowires-ubiquitous-microbes.html

Extracellular cytochrome nanowires appear to be ubiquitous in microbes

A Geobacter bacteria isolated from a contaminated ditch in Oklahoma has an unusual appendage—a long extracellular nanowire that can conduct electricity. The electron transport chain in this nanowire carries electrons from the bacteria to an insoluble external electron acceptor to help the microbe make energy. Such long-range electron transfers at a micron-scale are thought to have played an important role in microbial metabolism on the early Earth.

Phys.org