试丁林作为一种抑制Vibrio splendidus的抗菌试剂的特征
Huirong Yang1,2, Ya Li1,2, Weibo Shi1,2
1Collaborative Innovation Center for Zhejiang Marine High-Efficiency and Healthy Aquaculture, Ningbo University, Ningbo, 315832, People's Republic of China.
Applied microbiology and biotechnology
|May 24, 2024
概括
三氨酸有效地抑制了Vibrio splendidus的生长和毒性. 这种天然化合物向细菌鞭毛,蛋白酶和生物膜形成,LuxO1被确定为控制V. splendidus感染的潜在分子标.
科学领域:
- 海洋微生物学 海洋微生物学
- 发现抗微生物药物发现.
- 细菌病原发生的细菌.
背景情况:
- 斑杆菌 (Vibrio splendidus) 是一种海洋细菌,在水产养殖中造成重大损失.
- 迫切需要针对V. splendidus感染的有效控制策略.
- 三丁是一种天然的生物活性化合物,表现出抗菌性质.
研究的目的:
- 调查三氨酸对Vibrio splendidus AJ01.01的生长和毒性因素的影响.
- 在V. splendidus.中识别平林的潜在分子标.
主要方法:
- 确定三对细菌生长和生物膜形成的影响.
- 使用SDS-PAGE和LC-MS.分析运动性,血液溶解活性和细胞外蛋白表达 (蛋白酶,鞭毛).
- 通过实时RT-PCR进行基因表达分析.
- 分子对接以预测LuxO和ATP/三氨酸之间的相互作用.
主要成果:
- 特里普坦林 (10微克/毫升) 完全抑制了V. splendidus AJ01的生长.
- 三氨酸降低了运动性和溶血活性,但增加了生物膜的形成.
- 基因表达分析揭示了鞭毛和血解素基因的下调,以及蛋白酶和生物膜形成基因的上调.
- 分子对接表明,松氨酸与LuxO1的潜在竞争性结合,LuxO1是一种依赖西格玛-54的转录调节器.
结论:
- 三素通过抑制生长,鞭毛和细胞外蛋白酶,同时促进生物膜的形成,作为杀菌剂对抗V. splendidus.
- 在西格玛-54依赖的转录调节器LuxO1是一个潜在的分子点为三氨酸的作用.
- 丁作为一种治疗剂,可以控制海洋环境中的V. splendidus感染.
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