シタケキノコの硫黄の化学反応
Eileen Yu Sneeden1, Hugh H Harris, Ingrid J Pickering
1Stanford Synchrotron Radiation Laboratory, Stanford Linear Accelerator Center, 2575 Sand Hill Road, MS 69, Menlo Park, California 94025Gómez.
Journal of the American Chemical Society
|January 15, 2004
まとめ
アリウム植物とシイタケキノコの硫黄の化学成分は,細胞破壊によって大きく異なっています. アリウムハーブには硫黄化合物の変化が顕著であり,シイタケキノコは最小限の変化を示し,異なる酵素処理を示しています.
科学分野:
- バイオケミストリー バイオケミストリー
- 植物科学 植物科学について
- 菌類学 菌類学とは
背景:
- アリウムハーブ (例えば,ニンニク,洋) とシイタケキノコは,同様の硫黄の生化学を提案しています.
- 従来の分析は,これらの硫黄化合物の理解を制限しています.
- アリウムにおける細胞分解は,硫黄酸化物の前駆体から様々な硫黄種への酵素的変換を誘発する.
研究 の 目的:
- 細胞破壊時のアルリウム植物とシイタケキノコのインシット硫黄の生化学を調査し比較する.
- これらの有機体における硫黄化合物の変換に責任を負う酵素経路の違いを明らかにする.
主な方法:
- In situ硫黄KエッジX線吸収スペクトロスコーピーを用いた.
- 分析は,無傷のアルリウム植物と破壊されたアルリウム植物,シイタケキノコの標本の両方で行われました.
主要な成果:
- アリウム植物では,細胞破裂後に硫黄の形態が予想される変化を示した.
- シータケキノコは,細胞破壊時に硫黄の形態に重大な変化を示さなかった.
- シイタケキノコのC-Sライアスは濃度が低く,ニンニクと比較して前駆体割れが不完全である.
結論:
- 硫黄の生化学は,アルリウム植物とシイタケキノコの細胞分解後の間で大きく異なる.
- シタケキノコの硫黄化合物の変換は,より低い活性と潜在的阻害を持つ複数の酵素 (ガンマグルタミルトランスペプチダゼとC-Sリアゼ) に依存しています.
- 異なる硫黄プロファイルは,草食動物に対する異なる防御機構と異なる代謝経路を反映している可能性が高い.
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