まとめ
Blakeslea trispora (-) 株は, (+) 株によって作られた前駆体からトリスポリック酸C性ホルモンを合成します. この合成のための酵素は,アクティディオンによって抑制されないため,構成的であるように思われる.
科学分野:
- 菌類学 菌類学とは
- バイオケミストリー バイオケミストリー
- 生殖生物学 生殖生物学
背景:
- ブレイケスリア・トリスポラ (Blakeslea trispora) は,トリスポル酸の生物合成における役割で知られている真菌です.
- トリスポル酸は性ホルモンとして機能し,真菌の交配と繁殖を媒介する.
- 合成経路には,異なる交配株 (+ および -) の異なる寄与が含まれています.
研究 の 目的:
- Blakeslea trispora.でトリスポル酸Cの起源と合成を調査する.
- (+) 菌株によって合成された前駆物質の性質を特定する.
- (-) 株におけるトリスポリック酸C合成に責任のある酵素が誘導性か構成性かを判断する.
主な方法:
- Blakeslea trispora (+) と (-) 株の培養について.
- クロロフォームを使用して (+) 株の培養基から非酸性前駆物質の抽出.
- アクティディオンが (-) 株で分離された前駆体からトリスポリック酸の合成に及ぼす効果を試験する.
主要な成果:
- Blakeslea trisporaの (-) 株は, (+) 株によって提供される前駆体からトリスポリック酸Cを合成する.
- これらの前駆体は,クロロフォーム抽出で分離できる非酸性化合物です.
- アクティディオンは,これらの孤立した前駆体からトリスポリック酸Cの合成を阻害しませんでした.
結論:
- Blakeslea trisporaの (-) 株におけるトリスポリック酸Cの合成は, (+) 株からの前駆者を利用しています.
- (-) 株内のトリスポリック酸C合成に関与する酵素は,アクティディオンによる抑制の欠如によって示されるように,構成的である.
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