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A hyperthermophile is an organism that thrives in extremely hot environments—from 60 °C (140 °F) upwards. An optimal temperature for the existence of hyperthermophiles is often above 80 °C (176 °F). [ 1 ]
Aquifex means water-maker in Latin, and refers to the fact that its method of respiration creates water. Aquifex tend to form cell aggregates composed of up to 100 individual cells. Aquifex spp. are thermophilic and often grow near underwater volcanoes or hot springs . [ 2 ]
A colony of thermophiles in the outflow of Mickey Hot Springs, Oregon, the water temperature is approximately 60 °C (140 °F). Many hyperthermophilic Archaea require elemental sulfur for growth. Some are anaerobes that use the sulfur instead of oxygen as an electron acceptor during anaerobic cellular respiration .
Pyrococcus furiosus is a strictly anaerobic, heterotrophic, sulfur-reducing archaea originally isolated from heated sediments in Vulcano, Italy by Fiala and Stetter. It is noted for its rapid doubling time of 37 minutes under optimal conditions, meaning that every 37 minutes the number of individual organisms is multiplied by two, yielding an exponential growth curve.
The only unique enzymes to this pathway are pyruvate synthase, pyruvate:water dikinase, and PEP carboxylase. Because so many of the steps in the DC/4-HP pathway are seen in other pathways, there were only a few unique enzymes to the DC/4-HP pathway, making it difficult to determine the existence of this pathway for a long time.
Rock and dust samples retrieved by NASA from the asteroid Bennu exhibit some of the chemical building blocks of life, according to research that provides some of the best evidence to date that ...
Hoka is one of the most popular brands of running and walking shoes out there today, and if you want a white sneaker that marries style and performance, we highly recommend the new Clifton 9.
Thermus aquaticus is a species of bacteria that can tolerate high temperatures, one of several thermophilic bacteria that belong to the Deinococcota phylum. It is the source of the heat-resistant enzyme Taq DNA polymerase, one of the most important enzymes in molecular biology because of its use in the polymerase chain reaction (PCR) DNA amplification technique.