来自菲律宾的五种Usnea物种的抗菌活性和代谢概况的比较研究
Thomas Edison E Dela Cruz1,2,3, Lawrence P Timbreza1,2, Ek Sangvichien4
1The Graduate School, University of Santo Tomas, España Blvd., Manila 1015, Philippines.
Journal of fungi (Basel, Switzerland)
|November 24, 2023
概括
来自Usnea属的虫显示出作为抗生素的新来源的希望. 来自Usnea物种的提取物有效抑制了多药耐药细菌,突出了它们在抗菌药物发现中的潜力.
科学领域:
- 自然产品化学 自然产品化学
- 微生物学 微生物学
- 药理学是指药理学,即药理学是指药理学.
背景情况:
- 抗生素耐药性是一个日益增长的全球健康威胁,需要发现新型抗菌剂.
- ,特别是乌斯内亚属的,以产生多样化和生物活跃的二次代谢产物而闻名.
- 探索Usnea物种为识别新的抗生素结构或作用机制提供了潜在的途径.
研究的目的:
- 为了研究在菲律宾北部采集的Usnea种类的抗菌潜力.
- 评估Usnea提取物对抗多药性ESKAPE病原体和其他微生物的疗效.
- 为了确定负责抗微生物活性的生物活性化合物.
主要方法:
- 使用形态和生化方法收集和识别Usnea物种.
- 制备原始柳提取物和检测体外抗菌活性对标准和多药耐药细菌和酵母的测试.
- 使用薄层染色学 (TLC) 和高性能液体染色学 (HPLC),包括TLC-生物自拍学,对液体化合物的化学分析.
主要成果:
- 鉴定了46个Usnea标本,包括Usnea baileyi,U. diffracta,U. glabrata,U. longissima和U. rubicunda. 这些标本包括在内.
- 原始提取物在体外表现出显著的抑制作用,对抗格拉姆阳性细菌,包括耐美西林金黄色葡萄球菌和Enterococcus faecalis.
- 在HPLC分析中,检测到24个酸峰值,TLC-生物自拍识别了特定的生物活性化合物,如乌斯尼克酸,沙拉酸和酸.
结论:
- 来自菲律宾的乌斯内亚鱼具有强大的抗菌特性,可以对抗主要耐药性病原体.
- 鉴定到的鱼酸是开发新抗菌药物的有希望的候选人.
- 这项研究强调了水作为新型抗生素发现的丰富来源的价值.
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