BIOL240 Lecture Notes - Lecture 11: Nitrosopumilus, Nanoarchaeum Equitans, Ignicoccus
15 Mar 2019
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Document Summary
Of archaea do not contain d amino acids. Super phyla has several phyla within like tack (thaumarchaeota, aigarcheota, crenarchaeota, korarchaeota). Hard to culture genomes of koracrhaeota because they are very rare. Thaumarchaeota easiest to culture: nitrosopumilus maritimus, they can oxidize ammonia imp. In the n cycle: only a few types of bacteria could do this, thau. Is a separate phylum for many mesophilic crenarchaeotes: they do most of the oxidizing in the world. Like in soil to provide for the plants: can be cultured from aquariums, some are mesophiles (15 -40c, some are psychrophiles <15c imp. For the biogeochemical cycling of c and n in ocean if you compare with bacteria, archaea outnumber bacteria by 3:1 in the oceans. So they usually use nutrients that are in smaller in conc. Korarchaeota: distinct 16s rrna sequence obtained from hydrothermal environments, no species have been cultivated yet, one genome available. Aigarchaeota: no species have been cultivated yet, one genome available thermophile.
