各种细菌和帕尼细菌Spp. 从土壤中分离出来的产物化合物具有强大的抗菌活性,对抗临床相关的病原体
Michael Moran1, Hogan Turner1, Joseph Yanchar1
1Department of Microbiology and Molecular Biology, Brigham Young University, Provo, Utah, USA.
MicrobiologyOpen
|December 11, 2025
概括
土壤细菌Paenibacillus profundus对MRSA和CRE等耐药病原体表现出强大的抗菌活性. 这一发现为开发新抗生素提供了有希望的途径,以应对日益严重的抗生素耐药性危机.
科学领域:
- 微生物学 微生物学
- 药物发现 药物发现 药物发现
- 基因组学就是基因组学.
背景情况:
- 抗生素耐药性是一个日益增长的全球健康威胁.
- 迫切需要新型抗菌剂来对抗多药耐药 (MDR) 病原体.
- 土壤细菌,特别是Bacillus和Paenibacillus物种,是已知的生物活性化合物的来源.
研究的目的:
- 为了研究土壤衍生的Bacillus和Paenibacillus分离物的抗菌潜力.
- 为了识别具有针对临床意义的MDR病原体的活性的特定菌株.
- 在有前途的隔离物中探索抗微生物生产的遗传基础.
主要方法:
- 选29种Bacillus和Paenibacillus土壤分离物的抗菌活性.
- 抗微生物测定 (和) 针对耐甲基金色葡萄球菌 (MRSA) 和耐卡巴胺的肠杆菌 (CRE).
- 通过16S rRNA测序和用antiSMASH进行基因组挖掘来识别物种.
主要成果:
- Paenibacillus profundus 7.5 和 M4.5 菌株表现出强大的广泛抗菌活性.
- 观察到许多CRE菌株的显著抑制.
- 基因组挖掘揭示了生物合成基因集群 (NRPSs,PKSs,RiPPs),类似于已知的抗微生物药物,如聚米辛B和胆素.
结论:
- 帕尼巴西勒斯深度是新型抗菌化合物的有希望的来源.
- 鉴定出来的基因集群为开发新抗生素提供了目标.
- 土壤衍生细菌继续成为解决抗生素耐药性的宝贵资源.
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