线性阿基诺基基提德Neotetrafibricin A,B和C在微生物相互作用中具有杀菌和信号功能
Mario K C Krespach1, Maira Rosin1, Kirstin Scherlach2
1Department of Molecular and Applied Microbiology, Leibniz Institute for Natural Product Research and Infection Biology (Leibniz-HKI), Beutenbergstrasse 11a, 07745, Jena, Germany.
Chembiochem : a European journal of chemical biology
|September 11, 2025
概括
线性 arginoketides,像Streptomyces的neotetrafibricin A,杀死土壤微藻,并触发真菌代谢物生产. 这揭示了它们在各种土壤生态系统中作为跨王国信号的作用.
科学领域:
- 微生物生态学 微生物生态学
- 自然产品 化学 化学
- 生物化学 生物化学
背景情况:
- 土壤微生物群非常多样化,通过自然产品调解微生物相互作用.
- 阿尔金诺基提德是参与这些相互作用的专门代谢物.
- 线性 arginoketides 对土壤微藻的影响仍然未被探索.
研究的目的:
- 调查线性 arginoketides 对土壤微藻的影响.
- 确定neotetrafibricin的来源和功能.
- 探索neotetrafibricin在王国间信号传输中的作用.
主要方法:
- 基因组挖掘用于识别neotetrafibricin生物合成基因集群 (BGC).
- 在Streptomyces mashuensis中的基因破坏,以研究neotetrafibricin生产.
- 杀菌剂对克拉米多马纳斯的测试进行了强化.
- 菌共同培养实验,以评估诱导素酸生产.
主要成果:
- 斯特雷普托米切斯·马舒恩西斯 (Streptomyces mashuensis) 生产的是线性阿尔吉诺基基提德新四纤维素A.
- 尼奥特拉纤维素A对克拉米多马纳斯强硬菌表现出杀藻作用.
- 尼奥特拉纤维素A诱导阿斯伯吉卢斯尼杜兰斯的酸生产,表明跨王国信号传输.
- 确定了新型的同源新四纤维素C.
- 结构-活性关系研究表明,终端氨基基组和糖部分对活性不必.
结论:
- 尼奥特拉纤维素作为细菌和真菌,以及细菌和微藻之间的跨王国信号分子.
- 这项研究扩展了线性 arginoketides 在土壤微生物生态学中已知的功能.
- 新四纤维素在陆地环境中显示出作为多功能信号化合物的潜力.
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