通过氧化物介导,通过准TCA循环和线粒体功能来调节Aspergillus flavus的无性发育
Kunlong Yang1, Yue Luo1, Tongzheng Sun1
1JSNU-UWEC Joint Laboratory of Jiangsu Province Colleges and Universities, School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China.
Journal of hazardous materials
|April 28, 2024
概括
这项研究表明,氧化 (NO) 通过损害线粒体功能来破坏Aspergillus flavus发育. 来自A. oryzae的代谢物诱导NO,为这种病原体提供潜在的抗真菌策略.
科学领域:
- 微生物学 微生物学
- 生物化学 生化学
- 菌类学 菌类学是指菌类学.
背景情况:
- 氧化 (NO) 是一个关键的信号分子,但其在机会性病原体Aspergillus flavus中的功能尚不清楚.
- 开发针对A. flavus的新型抗真菌策略是必不可少的,因为它对农业和健康的影响.
研究的目的:
- 研究NO在A. flavus发育中的作用.
- 探索NO介导途径作为一种抗真菌策略的潜力,以抗A. flavus,使用来自阿斯伯吉洛斯 (AO) 的代谢物.
主要方法:
- 转录组分析以确定NO合成基因.
- 代谢分析用于研究代谢中断,特别是在三碳酸 (TCA) 循环中.
- 测量线粒体膜潜力 (Δψm) 和ATP生成.
- 对TCA循环酶的S-化分析.
主要成果:
- AO代谢物通过诱导NO合成来抑制A. flavus的无性发育.
- 通过减少线粒体膜潜力和ATP生产,NO损害了A. flavus.
- NO诱导了关键的TCA循环酶的S-化,包括阿基尼酶 (Acon) 和糖酸脱酶 (Sdh2).
结论:
- 氧化是调节A. flavus无性发育的一个关键因素.
- NO 干扰了 A. flavus 的线粒体功能和能量代谢,呈现出一种新的抗真菌标.
- 无NO介导的干扰为控制A. flavus感染提供了一个有希望的策略.
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