来自内性真菌Trichoderma koningiopsis WZ-196的植物毒性含海米基泰尔的多基基泰德与OSMAC战略和分子网络技术
Xin-Jing Li1,2, Rui Zhang1, Hao-Feng Huang1
1School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China.
Journal of natural products
|August 11, 2025
概括
内性真菌产生了具有显著植物毒性活动的新型血性多基基. 这些化合物显示出作为天然生物除草剂的潜力,为合成选项提供了替代品.
科学领域:
- 自然产品化学 自然产品化学
- 菌类学 菌类学是指菌类学.
- 农业化学研究 农业化学研究
背景情况:
- 内生菌是生物活性二次代谢产物的丰富来源.
- 多基类动物,特别是具有半基结构的多基类动物,往往表现出多样化的生物活动.
- 寻找新型,环保的除草剂正在进行中.
研究的目的:
- 从内性真菌*Trichoderma koningiopsis* WZ-196.6中分离和描述含有黑米凯特的多基凯特.
- 评估这些化合物的植物毒性活动与模型植物系统相比.
- 探索这些天然产品作为生物除草剂的潜力.
主要方法:
- 利用一株多化合物 (OSMAC) 策略与分子网络相结合,用于化合物发现.
- 采用了全面的光谱分析,包括核磁共振 (NMR) 和电子循环二元化 (ECD) 计算,以阐明结构.
- 评估植物毒性使用*Arabidopsis thaliana* (双胞体) 和*Oryza sativa* (单胞体) 作为生物测试模型.
主要成果:
- 成功分离了30种含有高氧化基甲的多基基,包括10种新化合物 (1-10) 和20种已知的类似物 (11-30).
- 大多数孤立的化合物在两种植物模型中都对苗木生长表现出显著的抑制作用.
- 化合物9对*A. thaliana* (IC50 = 8.09 μM),化合物24对*O. sativa* (IC50 = 9.42 μM) 显示出强烈的活性,在测试条件下超过了草甘的疗效.
结论:
- 来自*Trichoderma koningiopsis*的含有海米凯特的多基凯提具有显著的植物毒性.
- 这些发现强调了内菌作为开发新型生物除草剂的来源的潜力.
- 这些已识别的化合物代表了可持续杂草管理策略的有希望的线索.
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