内部植物性Streptomyces spp.的抗菌潜力. 从花生 (Arachis hypogaea) 根中分离出来:生物活性分析和分子对接研究
Rehab M Mohamed1, Mohamed E El Awady2, Asmaa M Fahim3
1Department of Botany and Microbiology, Faculty of Science, Sohag University, Sohag, 82524, Egypt.
Scientific reports
|February 10, 2026
概括
来自花生根的内生菌 Streptomyces 对抗性细菌表现出强大的抗菌活性. 这些微生物产生新型化合物,为新的抗菌药物提供了有希望的自然来源.
科学领域:
- 微生物学 微生物学
- 自然产品化学 自然产品化学
- 计算生物学 计算生物学
背景情况:
- 抗菌素耐药性 (AMR) 是一个日益增长的全球健康威胁.
- 自然来源,如内菌,对于发现新的抗菌剂至关重要.
研究的目的:
- 为了研究从花生根中分离出的内性Streptomyces的抗菌潜力.
- 为了识别和表征由这些Streptomyces菌株产生的生物活性化合物.
- 评估这些化合物与细菌蛋白标的结合相互作用.
主要方法:
- 从花生根样本中分离和培养Streptomyces.
- 抗菌活性查针对格拉姆阳性和格拉姆阴性细菌.
- 使用气体染色学-质谱学 (GC-MS) 和富里埃变换红外光谱学 (FT-IR) 识别代谢物.
- 对抗细菌蛋白点的分子对接和动力学模拟.
主要成果:
- 有两个Streptomyces菌株,S. rochei RSA1和Streptomyces sp. 这两种菌株. RSA2,表现出显著的广泛抗菌活性.
- 确定了9种生物活性化合物,其中2 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 和2,4 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 丁是最为丰富的 (>96%).
- 分子模拟证实了化合物和细菌标之间的强烈相互作用,其中S. rochei RSA1显示最稳定的复合物.
结论:
- 由花生衍生而来的内性菌株Streptomyces是新型抗菌代谢物的宝贵来源.
- 这些已识别的化合物显示出开发针对多药耐药性感染的新治疗策略的潜力.
- 对这些化合物的进一步研究可能会导致对细菌疾病的有效治疗.
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