The two species were selected because one is a hyperthermophile
, meaning it thrives under extremely hot temperatures, and the other is a thermophile, which thrives under warm temperatures.
Not a great place to set up house--unless you're a hyperthermophile
Leaderless transcripts of the crenarchaeal hyperthermophile
In early 1998, investigators announced they had deciphered the complete DNA sequence of Aquifex aeolicus, a bacterium known as a hyperthermophile
because it can survive temperatures reaching 95 [degrees] C.
According to an article in the International Herald Tribune, hyperthermophiles
are a "goldmine for biotechnology companies, which are isolating, cloning and selling [hyperthermophile
] heat-stable enzymes for use in genetic engineering.
However, the processes behind these HGT remain mysterious, especially for hyperthermophiles
The sulfide-rich water jets create chimneylike structures around each superheated plume, supporting a rich ecosystem of hyperthermophiles
(the environment can be about 230 degrees Fahrenheit) that survive on chemosynthesis (converting sulfides into energy).
So these microbes known as hyperthermophiles
may have existed on Mars when the planet was much warmer than it is now," he added.
Notable groups of Archaea include thermophiles and hyperthermophiles
(which can tolerate high temperatures), halophiles (which can tolerate high salt concentrations), and methanogens (which produce methane, a greenhouse gas, as part of their metabolism).
The physiology and ecology of sulfate- reducing bacteria, methanogenic bacteria, hyperthermophiles
, and fermentative and chemolithotrophic bacteria are covered.
According to 16S r-tRNA analysis, hyperthermophiles
Archaea and Bacteria are at the root of the Phylogenetic Tree.
About 60 new species of hyperthermophiles
have been discovered since these types of communities were first encountered in the late 1970s in a tectonically active area north of the Galapagos Islands.