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''Aquifex aeolicus'' is a rod-shaped bacterium with a length of 2 to 6 micrometers and a diameter of around half a micrometer. It is one of a handful of species in the Aquificae phylum, an unusual group of thermophilic bacteria that are thought to be some of the oldest species of bacteria. ''A. aeolicus'' grows best in water between 85 to 95 °C, and can be found near underwater volcanoes or hot springs. It requires oxygen to survive (though it can grow in levels of oxygen as low as 7.5 ppm), and its method of respiration produces water as a byproduct. ("Aquifex" means "water-maker.") Members of the species tend to form large cell conglomerations, of up to 100 individual cells. It was discovered around islands north of Sicily. The genome of ''A. aeolicus'' has been successfully mapped. This was made easier by the fact that the length of the genome is only about a third of the length of the genome for ''E. coli''. Comparison of the ''Aquifex aeolicus'' genome to other organisms showed that around 16% of its genes originated from the Archaea domain. It has the smallest genome of any known non-parasite. Its total genome is 1.5 Mb long and contains 1512 genes. Additionally, it contains a single extrachromosomal element (ECE). ''A. aeolicus'' is good candidate for biotechnological use due to its high stability against oxygen and high temperature. This can be useful for improving industrial processes. == References == 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Aquifex aeolicus」の詳細全文を読む スポンサード リンク
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