先进的发酵技术增强了来自Phyllosticta capitalensis的二氧化类生物杀虫剂的生产
Nicolas Reyes Castillo1,2, Jorge Rojas López-Menchero3,4, William A Pacheco Useche3
1Instituto de Ciencias Agrarias (ICA-CSIC), Serrano 115Dpdo, 28006, Madrid, Spain. nireyesca@ica.csic.es.
Scientific reports
|March 7, 2025
概括
创新的发酵技术显著提高了由内生菌Phyllosticta capitalensis产生的二氧化和三氧化代谢产物. 玻璃羊毛支被证明是最有效的用于提高二氧化氨酸衍生物产量和生物杀虫剂活性.
科学领域:
- * * 自然产品化学 自然产品化学
- * 菌群学 * 菌群学
- * 农业科学 农业科学
背景情况:
- *内生真菌,如Phyllosticta capitalensis,产生有价值的二次代谢产物.
- * 培养方法会影响真菌代谢产物的产量和多样性.
- *研究新的发酵技术对于优化天然产品的发现至关重要.
研究的目的:
- * 评估Phyllosticta capitalensis (隔离YCC4) 产生的二氧化和二氧化二次代谢物.
- *评估不同发酵技术 (MPEC和SAF) 对代谢物产量和生物活性的影响.
- * 确定最佳的种植条件,以提高代谢物产量.
主要方法:
- *使用微粒增强培养 (MPEC) 培养Phyllosticta capitalensis,使用本托尼特和粉,以及使用金属网和玻璃羊毛进行表面粘附发酵 (SAF).
- *使用染色学和光谱学方法对乙酸提取物进行二氧化衍生物和三烯的分析.
- * 对提取物对虫Myzus persicae和根结线虫Meloidogyne javanica的生物活性进行评估.
主要成果:
- * 鉴定出多种类型的二氧化衍生物 (甲基尼纳德酸,甲基尼纳德酸C,乙基尼纳德酸,甲基尼纳德酸D,基尼纳德酸甲基) 和甲基烯 (甲基尼纳德酸A,B,甲基尼纳德酸C,B,甲基尼纳德酸I).
- *在不同的发酵条件下观察到代谢物产量和生物杀虫剂活性的显著变化.
- *SAF中的玻璃羊毛 (GW) 显著增强了二氧化衍生物的生产.
结论:
- *像MPEC和SAF这样的创新栽培方法可以显著调节内菌中的二次代谢物产量.
- * 玻璃羊毛 (GW) 被确定为一种高性能材料,可以改善二氧化衍生物的生产.
- *这项研究突出了优化真菌发酵的潜力,以发现和生产有价值的生物活性化合物和生物农药.
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