... emergence of life on the early Earth' organized by S. Leach, I. Smith and C. Cockell Hyperthermophiles in the history of life Karl O. Stetter Abstract: Today, hyperthermophilic ('superheat-loving') bacteria and archaea are found within high-temperature environments, representing the upper temperature border of ...
... for disproving the ancestry of hyperthermophiles. A more recent paper (2004, 4) seems to re-establish hyperthermophiles as being ancient, and use...the enzyme gyrase as being hyperthermophile's recent acquirement from archaea...transfer has been found in hyperthermophiles. Indeed, this evidence does not...Advances 2002 3. "A non-hyperthermophilic ancestor for Bacteria," Nature, 2002...
..., and many reactions can't occur without metal cofactors. Since both of these are provided around hydrothermal vents, it seems a likely place. [snip] Cited: ... 3. "A non-hyperthermophilic ancestor for Bacteria," Nature, 2002 That the LUCA would be an obligate aerobe seems counterintuitive to me as well. But there is really nothing paradoxical about it. The LUCA was not the ...
...evidence for disproving the ancestry of hyperthermophiles. A more recent paper (2004, 4) seems to re-establish hyperthermophiles as being ancient, and use ... the enzyme gyrase as being hyperthermophile's recent acquirement from archaea,... transfer has been found in hyperthermophiles. Indeed, this evidence does not ... Advances 2002 3. "A non-hyperthermophilic ancestor for Bacteria," Nature, 2002 ...
You're correct in showing criticism for the hyperthermophilic origin of the LCA. Truth is that the first dividing cell may have been a mesophile. However, given how deeply rooted thermophiles are in the tree of life, I feel its better evidence than the contrary. It is also good to note that many enzymes using metal cofactors are also highly divergent and well rooted. Since ...
... this area appears to be controversial. For example consider this paper from Oct 29, 2006: ``Hyperthermophiles in the history of life. Stetter KO. [...] Based on their growth requirements, HT...>> Of course it's controversial. That's the point. You can no longer assume that hyperthermophiles are close to the base of the tree of life because the so-called "...
...this area appears to be controversial. For example consider this paper from Oct 29, 2006: ``Hyperthermophiles in the history of life. Stetter KO. [...] Based on their growth requirements, ...> Of course it's controversial. That's the point. You can no longer assume that hyperthermophiles are close to the base of the tree of life because the so-called "phylogenetic ...
... area appears to be controversial. For example consider this paper from Oct 29, 2006: ``Hyperthermophiles in the history of life. Stetter KO. [...] Based on their growth requirements, ....'' Of course it's controversial. That's the point. You can no longer assume that hyperthermophiles are close to the base of the tree of life because the so-called "phylogenetic tree ...
... of the family tree of life - e.g.: ``Results of rRNA and other molecular techniques have placed hyperthermophilic bacteria and archaea at the roots of the phylogenetic tree of life'' ...and the idea that they are similar to their distant ancestors: ``Extremophiles, especially hyperthermophiles, possess slow
... rRNA and other molecular techniques have placed hyperthermophilic bacteria and archaea at the roots of ... similar to their distant ancestors: ``Extremophiles, especially hyperthermophiles, possess slow „evolutionary clocks‰ That is, they ... their ancestors as compared to other organisms Hence, hyperthermophiles today are similar to hyperthermophiles ...
