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Spirochaeta americana : ウィキペディア英語版 | Spirochaeta americana
''Spirochaeta americana'' is a relatively newly discovered single-celled extremophile. This haloalkaliphilic and obligately anaerobic bacterium can be found in the bleach-like highly alkaline, salty, deep waters of California's Mono Lake.〔〔(【引用サイトリンク】title=A New Form of Life )〕 ==Physical characteristics== ''S. americana'' has long helically coiled cells, is gram-negative, and is chemotrophic in its metabolism. Spirochaeta also have unique flagella, sometimes called ''axial filaments'', which run lengthwise between the cytoplasmic membrane and outer membrane. These cause a twisting motion which allows the spirochaete to move about. Despite the extreme environment that they require, "their cell walls are very delicate, and it is difficult to keep them alive for long periods in the laboratory," says Dr. Elena Pikuta, one of the discoverers of ''S. americana''.
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「Spirochaeta americana」の詳細全文を読む
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