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共同培养Bacillus菌株以提高抗菌活性

Charlie Tran¹, Russell S Addison¹, Ian E Cock²

¹Institute of Biomedicines and Glycomics (IBG), Griffith University, Nathan, QLD 4111, Australia.

Antibiotics (Basel, Switzerland)

|September 27, 2025

概括

共同培养Bacillus菌株显著增强了细菌生长和抗菌化合物生产. 这种多菌株方法产生了强大的新型抗微生物药物,其稳定性得到改善,为传统抗生素提供了有希望的替代品.

科学领域:

微生物学微生物学
生物技术是生物技术.
药物发现药物发现药物发现

背景情况:

细菌益生菌混合物被认可用于抗微生物生产.
需要探索共同培养的细菌菌株的协同作用潜力.
了解组合配方的机制至关重要.

研究的目的:

评估共培养Bacillus菌株对细菌生长和抗菌素生产的影响.
分析共同培养的细菌提取物的化学特征和抗菌活性.
研究产生的抗微生物代谢物的稳定性和作用机制.

主要方法:

细菌菌株 (BPR-11,BPR-16,BPR-17) 被培养成单种和多种培养.
通过光学密度测量细菌生长和密度.
使用LC-MS分析生物活性提取物;对病原体进行抗菌活性测试.

主要成果:

与单一种植相比,共同培养的菌株显示出明显更高的细菌生长率 (OD 2.67).
共同培养的提取物表现出强大的抗菌活性 (MIC 25μg/mL) 对抗C.perfringens,大肠杆菌,黄金杆菌.
LC-MS显示,共培养中抗菌代谢物如表面素C的产量增加;表面素C类似物显示出高稳定性.

结论:

多菌株共培养Bacillus益生菌是一种可行的策略,用于增强抗微生物开发.
共同培养中的协同效应导致增长和强大的抗微生物代谢物产生.
这些发现为从微生物联盟中开发新的,稳定的抗微生物剂提供了洞察力.

关键词:

细菌杆菌是一种抗微生物药物抗微生物药物共同文化是一种共同文化.

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