细菌静态活动Vibrio parahaemolyticus 菌体460s1及其内溶素
Yingshan Liang1, Tian Shi1, Bingbing Heng1
1School of Food Science and Engineering, Wuhan Polytechnic University, Wuhan, Hubei, China.
Foodborne pathogens and disease
|August 19, 2025
概括
一种新型的菌体,460s1有效控制了中的耐药性Vibrio parahaemolyticus. 它的内素还对抗耐药菌株表现出广泛的化活性,为控制食源性病原体提供了有前途的解决方案.
科学领域:
- 微生物学 微生物学
- 细菌学 细菌学是一门学科.
- 食品安全 食品安全
背景情况:
- 维布里奥帕拉海莫利蒂库斯 (Vibrio parahaemolyticus) 是一种重要的食物传播病原体.
- 耐药菌株越来越普遍,这给公共卫生带来了挑战.
- 菌体为控制耐药细菌提供了抗生素的潜在替代品.
研究的目的:
- 隔离和表征一种对抗Vibrio parahaemolyticus有效的细菌菌体.
- 评估菌体及其衍生的内素在控制Vibrio parahaemolyticus中的有效性.
- 评估菌体460s1及其内素作为生物控制剂的潜力.
主要方法:
- 隔离和表征Vibrio parahaemolyticus 菌体460s1.1. 的特征
- 通过测定不同温度和pH值的菌体活动.
- 宿主范围分析和在中的in-situ抑制试验.
- 菌素460s1的基因组测序和内素基因 (ORF53) 的鉴定.
- 恩多利辛的表达和净化以及其溶解活性的评估.
主要成果:
- 菌体460s1表现出广泛的活动 (30-50°C,pH3-10),并溶解了16/23种Vibrio parahaemolyticus菌株.
- 菌体460s1显著抑制了中的Vibrio parahaemolyticus生长,在15°C时减少了3.46 log CFU/g的细菌数量.
- 对菌体基因组进行测序,发现了105个ORF,其中包括ORF 53编码内素.
- 表达的内素降低了细菌的光学密度,并显示了对20种抗微生物耐药的Vibrio parahaemolyticus菌株的溶解活性.
结论:
- 菌体460s1是一种有效的药物,可以控制Vibrio parahaemolyticus,包括耐药菌株.
- 来自菌素460s1的内溶素对抗多药耐药性Vibrio parahaemolyticus表现出显著的性活性.
- 菌体460s1及其内素在食品安全应用中代表了预防和控制Vibrio parahaemolyticus的宝贵工具.
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