モナスクス・パープルレウス (Monascus purpureus) のモナコリンKの増産をミュータゲネシスと窒素源の最適化を通じて強化した
Chen Yang1, Yang Yajing1, Hong Housheng1
1Nanjing Tech University, Nanjing, China.
Journal of basic microbiology
|February 12, 2026
まとめ
研究者はモナスクス菌を改良した.
科学分野:
- バイオテクノロジーと微生物発酵
- メタボリックエンジニアリング
- 自然製品合成 自然製品合成
背景:
- モナスクス菌は,脂質低下効果で知られている化合物であるモナコリンK (MK) を生産するのに価値があります.
- MKの収穫量を最適化することは,その治療的応用にとって極めて重要です.
- 固体発酵は,真菌栽培の一般的な方法である.
研究 の 目的:
- モナスクス菌のモナコリンK (MK) 産量を,ミュータゲネシスと栄養補給を通じて改善する.
- 強化されたMK生産の基礎となる代謝メカニズムを調査する.
- 効率的なMKバイオシンセシスのための高収量Monascus株を開発する.
主な方法:
- 大気および室温プラズマ (ARTP) 変異遺伝は,変異株を生成するために使用されました.
- L-アルギニンサプリメントは,固体発酵でMKの生産を高めるためにテストされました.
- 代謝経路の変化を分析するために,非ターゲットのメタボロミックスを用いた.
- MKの定量化は,確立された分析方法を使用して行われました.
主要な成果:
- C-23と指定された突然変異株は,MKの生産能力の向上を示した.
- L-アルギニンのサプリメントは,MKの収穫量を97.3%大幅に増加させ,9.45 mg/gに達しました.
- メタボロミック分析により,L-アルギニンは,アミノ酸,コファクター,炭水化物,脂質代謝に関わる経路を調節することが明らかになった.
- これらの代謝の変化は,MK過剰生産のメカニズムについての洞察を提供します.
結論:
- ARTP突然変異とL-アルギニン補給の併用アプローチは,MonascusのMK産生を高めるのに効果的です.
- L-アルギニンは,MK生物合成に不可欠な代謝経路の調節に重要な役割を果たします.
- この研究は,モナコリンKの生産のために優れたモナスクス菌株を開発するための戦略的方法を提供します.
- この発見は,真菌における天然産物合成の代謝調節の理解に貢献する.
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