現代の真核植物プランクトンの進化
Paul G Falkowski1, Miriam E Katz, Andrew H Knoll
1Institute of Marine and Coastal Sciences, Rutgers University, 71 Dudley Road, New Brunswick, NJ 08540, USA. falko@imcs.rutgers.edu
まとめ
海洋生態系は,構造と機能のために真核植物プランクトンに依存しています. メソゾーイク時代には,海洋の有機物質の流動に不可欠なダイオトーム,ココリトフォア,そしてダイノフラゲラットの出現が見られました.
科学分野:
- マリン・バイオロジー マリン・バイオロジー
- パレオントロジー・パレオントロジー
- 海洋学 海洋学とは
背景:
- ユカリオット植物プランクトンは,海洋生態系の構造と生態学的機能に不可欠です.
- サイアノバクテリアに数値的に劣っているにもかかわらず,それらは重要な有機物質の流れを誘導します.
- 3つの主要な植物プランクトン群 (ダイノフラゲラート,ココリトフォール,ダイオトーム) の出現は,中生期に起こった.
研究 の 目的:
- ディノフラゲラート,ココリトフォア,ダイオトームの生態学的上昇の背後にある地質学,地化学,生物学的要因を調査する.
- これらの重要な植物プランクトン群における二次共生の進化的意義を理解する.
主な方法:
- 地質学的記録のレビュー. 地質学的記録のレビュー.
- 地化学プロキシの分析. 地化学プロキシの分析.
- 生物学的進化の経路の検討.
主要な成果:
- 中生紀は,重要な植物プランクトン群の多様化と生態学的優位性にとって重要な時期でした.
- 祖先の赤い藻から生まれた二次共生は,これらの支配的なクラードの共通の特徴です.
- これらの植物プランクトン群は,海洋生物地球化学と食物網に大きな影響を与えた.
結論:
- ダイノフラゲラット,ココリトフォア,ダイアトムの出現は,現代の海洋生態系を根本的に形作りました.
- 彼らの進化の歴史を理解することは,海洋の生産性と炭素循環を理解する鍵です.
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