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Updated: Jul 16, 2026

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Next-generation Sequencing of 16S Ribosomal RNA Gene Amplicons
Published on: August 29, 2014
16S rRNA配列は,自然界のコミュニティで多くの培養されていない微生物を明らかにしています
D M Ward1, R Weller, M M Bateson
1Department of Microbiology, Montana State University, Bozeman 59717.
Nature
|May 3, 1990
まとめ
伝統的な方法は,微生物のコミュニティの研究を制限しています. 16SリボソームRNAを用いた培養独立分析により,温泉における広範囲の未培養微生物多様性が明らかになり,以前の憶測が確認されました.
科学分野:
- 微生物学 微生物学とは
- 分子生物学は分子生物学である.
- 環境科学 環境科学
背景:
- 伝統的な微生物学的方法は,多様な自然微生物のコミュニティを特徴づけるのに苦労しています.
- 培養に依存する技術は本質的に偏りがあり,微生物のほんの一部を培養します.
- 培養の制限のため,微生物の80%以上は未発見のままであると推定されています.
研究 の 目的:
- 温泉の微生物コミュニティの組成を,文化独立のアプローチを用いて調査する.
- この環境における培養されていない微生物の多様性の範囲を評価する.
- 未発見の微生物の生命の広大な範囲に関する仮説を検証する.
主な方法:
- 温泉の微生物コミュニティの培養独立分析を行った.
- 16SリボソームRNA (rRNA) を標的分子として利用した.
- 環境サンプルから直接遺伝子素材を分析した.
主要な成果:
- 温泉の微生物コミュニティ内で有意な多様性が確認されました.
- 以前は培養できなかった微生物のかなりの割合を特定しました.
- この発見は,ほとんどの微生物が未発見のままであるという考えを裏付けている.
結論:
- 16S rRNA分析のような,培養系から独立した方法は,微生物の多様性を理解するために不可欠です.
- 自然環境にある微生物の大多数は,従来の栽培には適さない.
- この研究は,地球の微生物生物圏とその生化学的能力に関する現在の知識の限界を強調しています.
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