Sentences with word «archaeon»

Mitochondrial merger Eukaryotes have a number of innovations compared to their more primitive archaeon ancestors.

The first option, called the big - bang or mitochondria - early theory, predicts that a primitive archaeon engulfed a bacterium, an event that drove the development of eukaryotes.

So, some 2 billion years ago, scientists think that one archaeon engulfed a bacterium.

Intra - and intermolecular signal transduction mechanisms in membrane - embedded (photo --RRB- receptor / transducer complexes are studied using the photoreceptor / transducer complex NpSRII / NpHtrII, which is responsible for the photoactive behavior of the halophilic archaeon Natronomonas pharaonis.

Saccharolobus caldissimus gen. nov., sp. nov., a facultatively anaerobic iron - reducing hyperthermophilic archaeon isolated from an acidic terrestrial hot spring, and reclassification of Sulfolobus solfataricus as Saccharolobus solfataricus comb.

The complete 1.66 - megabase pair genome sequence of an autotrophic archaeon, Methanococcus jannaschii, and its 58 - and 16 - kilobase pair extrachromosomal elements have been determined by whole - genome random sequencing.

«It's still 100 per cent archaeon, but the presence of genes we usually associate with eukaryote cell biology is absolutely fascinating.»

Thermococcus gammatolerans — a flagellate archaeon that thrives in hot, oxygen - starved waters.

How the engulfment of a small bacterium by a larger archaeon more than a billion years ago resulted not in death, but in one of the most successful partnerships on earth.

«We found that M. kandleri is a «minimalist» archaeon whose regulatory and signaling systems are generally scaled down compared with those of other archaea,» the scientists write in Proceedings of the National Academy of Sciences.

Though neither the Thor or Loki microbe was the unknown ancestral archaeon, both hinted at its identity.

The latest publication of the Robinson - lab (Lancaster University, UK) in collaboration with the Ettema - lab is now available online at Nature Communications, regarding the «Functional reconstruction of a eukaryotic - like E1 / E2 / (RING) E3 ubiquitylation cascade from an uncultured archaeon» — the first time that the ubiquitination cascade has been demonstrated outside of eukaryotes.

Metallosphaera sedula is an extremely thermoacidophilic archaeon (Topt 73 °C, pHopt 2.0), originally isolat...

Using a genome - based approach, we identified and characterized a halophilic cellulase (Hu - CBH1) from the halophilic archaeon, Halorhabdus utahensis.

By tracking activity in almost all the genes of a free - living archaeon — which, like a bacterium, is a prokaryote — Bonneau was recently able to piece together how the genes affected one another's expression, enabling him to map the organism's «control circuit» as if it were a machine.

I was always interested in many things other than the object of my PhD (which involved, by the way, studying a thermostable DNA polymerase from the archaeon Thermococcus aggregans).

The genome of the archaeon known as Lokiarchaeum («Loki» for short) contains more «eukaryotic signature proteins» (ESPs) than any other prokaryote.

«This is a very eukaryotic - specific process, and for the first time, we found them in an archaeon,» Ettema said.

But it's unclear how the archaeon could have picked up that bacterium.

At some point, an archaeon or a primitive eukaryote engulfed a bacterium, developing a symbiotic relationship.

Or perhaps it will be an archaeon with signs of a symbiotic bacterium living within.

The researchers predict that, when Loki is finally isolated or cultured, «it will look more like an archaeon than a proto - eukaryote and will not have internal compartments or a vesicle - trafficking network.»

The team of microbiologists and biogeochemists now discovered an archaeon — the other branch of ancient prokaryotes besides bacteria — of the order Methanosarcinales that uses iron to convert methane into carbon dioxide.

This archaeon lives in deep sea vents near Japan, and survives by combining hydrogen and carbon dioxide — both detected in Enceladus's atmosphere — while excreting methane.

In 2015, Thijs Ettema and colleagues published a breakthrough study in which genomic data was described of «Loki», an archaeon living in the ocean floor that represented the closest living micro-organism of complex cellular life.

They found this opsin, called Jaws, in a type of single - celled marine organism called an archaeon (Ar - KEE - on).

Mircea Podar of ORNL's Biosciences Division led a team that isolated the archaeon Nanopusillus acidilobi, cultured these tiny microbes — just 100 to 300 billionths of a meter in size — and can now study how they interact with their host, another archaeon (Acidilobus).

The smaller creature gave its host energy, while the archaeon made sure the bacterium was safe and fed.

Woese argued that despite a superficial resemblance to bacteria, archaeons have a distinct evolutionary heritage and therefore belong in a separate category.

The organism, named Lokiarchaeota (Loki for short) for the wily trickster god of Norse myth, was an archaeon, but it looked like it could be related to more complex life - forms.

The scientists think that the archaeon ancestor was either a member of the Asgard group or a very close relative.

(singular: archaeon) a group of tiny organisms often living in extreme environments, such as ocean vents and salt lakes.