表面素的抗真菌活性对抗细胞菌种子
Xinyue Wang1, Liangqiang Chang1, Qinggui Lian1
1Xinjiang Key Laboratory of Oasis Agricultural Pest Management and Plant Protection Resources Utilization, College of Agronomy, Shihezi University, Shihezi 832003, China.
Biomolecules
|January 28, 2026
概括
表面素有效地抑制了森林病原体Cytospora chrysosperma的生长,通过破坏其三碳酸循环和能量生产. 这种抗真菌化合物还会损害细胞膜,并触发自,导致细胞死亡.
科学领域:
- 菌类学 菌类学是指菌类学.
- 生物化学 生物化学
- 植物病理学 植物病理学
背景情况:
- 植物 (Cytospora chrysosperma) 对林业和水果产业构成重大威胁.
- 表面素是一种Bacillus代谢物,具有已知的抗真菌特性.
- 表面素对植物病原体的精确抗真菌机制需要进一步阐明.
研究的目的:
- 为了研究表面素对Cytospora chrysosperma的抑制机制.
- 为了确定抑制C. chrysosperma生长的表面素的有效度.
主要方法:
- 使用MIC和半最大有效度评估了Surfactin的疗效.
- 通过显微镜观察到形态和超结构变化.
- 分析了细胞膜完整性,活性氧物种 (ROS) 积累和能量代谢.
- 转录组分析被用来识别分子标.
主要成果:
- 表面素显著抑制了C. chrysosperma,MIC为2 mg/mL.
- 表面素破坏了状体形态,损害了细胞膜的完整性,并诱导了ROS积累.
- 能量产生受到抑制,由降低的ATP含量和降低的酶活动 (ATPase,糖酸脱酶) 证明.
- 表面素通过向酸合成酶来干扰三酸循环,导致代谢障碍和自.
结论:
- 表面素通过多种机制有效地抑制了C. chrysosperma的生长.
- 向三酸循环和破坏能量代谢是surfactin的主要抗真菌作用.
- 表面素是一种潜在的生物控制剂,用于控制C. chrysosperma感染.
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