揭示了来自泰戈斯河河口的Actinomycetota生物活性潜力
José Diogo Neves Dos Santos1,2, Eugénia Pinto3,4, Jesús Martín5
1Department of Biology, Faculty of Sciences, University of Porto, Rua Do Campo Alegre, S/N, 4169-007, Porto, Portugal. zesantox@gmail.com.
概括
研究人员探索了河口细菌的新型抗菌化合物,以对抗日益增长的抗生素耐药性. 他们发现了几种生物活性菌株,包括一种新物种,产生了有前途的天然产品.
科学领域:
- 微生物学 微生物学
- 自然产品化学 自然产品化学
- 环境科学 环境科学
背景情况:
- 全球旅行和滥用抗生素导致抗生素耐药性显著增加.
- 像河口这样的未经探索的环境是新生物活性天然产品的潜在来源.
- 动因菌群是众所周知的抗菌化合物的生产者.
研究的目的:
- 从泰戈斯河口分离和特征化河口行为菌总菌株.
- 为了选这些分离物对抗病原细菌和真菌的抗微生物生物活性.
- 用色谱和质谱技术识别生物活性化合物.
主要方法:
- 使用常规和IChip技术分离actinomycetotal菌株.
- 制备来自孤立培养的提取物.
- 针对黄金葡萄球菌,大肠杆菌,烟杆菌,白杆菌和红杆菌的抗微生物敏感性测试.
- 使用高性能液体染色学 (HPLC) 和高分辨率质谱法 (HRMS) 进行生物活性提取物的脱复制.
主要成果:
- 获得了来自3个属的105个actinomycetotal分离物,其中包括一种新物种Streptomyces meridianus.
- 在12种针对S. aureus,2种针对E. coli,4种针对A. fumigatus,3种针对C. albicans和10种针对T. rubrum菌株的提取物中观察到抗菌活性.
- 复制发现了28种已知的生物活性分子,35种在自然产品词典 (DNP) 中的潜在匹配,以及18种未被描述的化合物.
结论:
- 河口行为菌总菌株是发现新抗微生物天然产品的有希望的来源.
- 鉴定到的新型物种和化合物需要进一步研究治疗潜力.
- 这项研究强调了探索未经探索的环境对于新药发现的重要性.
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