開かれた海洋の表面水における細菌の光合成
Z S Kolber1, C L Van Dover, R A Niederman
1Environmental Biophysics and Molecular Ecology Program, Institute of Marine and Coastal Sciences, Rutgers University, New Brunswick, New Jersey 08901-8521, USA.
Nature
|September 23, 2000
まとめ
エアロビック細菌の光合成は,熱帯および温帯の海に広く広がっており,以前の仮定に挑戦しています. これらのバクテリアは,地表水における全体的な光合成電子輸送に大きく貢献します.
科学分野:
- マリン・マイクロバイオロジー
- 光合成の研究研究である.
- バイオジオケミストリー バイオジオケミストリー
背景:
- シアノバクテリアによる酸素 fotosynthesisは,歴史的に無酸素 fotosynthesisを無酸素ゾーンに制限しました.
- 酸素耐性 fotosynthetic 細菌の発見は,この理解を変えました.
- エアロビックバクテリアの光合成のグローバル分布と重要性については,ほとんど不明のままです.
研究 の 目的:
- 地球上の海洋における有酸素細菌の光合成の分布と流行を調査する.
- これらのバクテリアの光合成能力を評価するために.
- 海洋の全体的な光合成への寄与を決定する.
主な方法:
- 熱帯太平洋と温帯大西洋の水域での生体物理学的測定.
- 光合成の電子輸送率の定量化.
- 酸素性フォトオートロフとの比較分析.
主要な成果:
- エアロビック細菌の光合成は,熱帯の東太平洋と温帯の北西大西洋の地表水域に広く広がっています.
- これらのバクテリアは,研究された上部海洋地域における全光合成電子輸送の2~5%を占めています.
- 広範囲にわたる有酸素細菌の光合成に関する最初の生体物理的証拠を提供する.
結論:
- アエロビック細菌の光合成は,現代の海洋生態系における重要なプロセスです.
- この結果は,世界の海洋原産物生産モデルを再評価することを必要としています.
- 海洋の光合成細菌は,これまで認識されていたよりも多様な役割を果たしています.
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