从的消化组织中分离出来的Pseudomonas composti特别通过PSL细胞外多糖体与诺罗病毒GII.6结合
Yongxin Yu1, Feng Han2, Mingshu Yang3
1College of Food Science and Technology, Shanghai Ocean University, Shanghai, China; Laboratory of Quality and Safety Risk Assessment for Aquatic Products on Storage and Preservation (Shanghai), Ministry of Agriculture, China.
International journal of food microbiology
|September 4, 2023
概括
某些菌细菌结合特定的诺罗病毒菌株,影响环境传播. 这项研究确定了Pseudomonas composti通过其PSL外聚糖化合物与诺罗病毒GII.6结合.
科学领域:
- 环境微生物学环境微生物学
- 病毒学 病毒学
- 食品安全 食品安全
背景情况:
- 是人类诺罗病毒传播的关键载体.
- 在的消化组织 (ODT) 中,诺罗病毒和细菌之间的相互作用尚未得到充分理解.
研究的目的:
- 为了研究诺罗病毒是否与的消化组织中存在的细菌结合.
- 为了确定参与这些相互作用的特定细菌菌株和诺病毒基因型.
主要方法:
- 从ODT中分离和识别细菌菌株 (Pseudomonas composti,Enterobacter cloacae) 的方法.
- 使用流细胞计,共聚焦显微镜,ELISA和基因淘汰突变体,对结合细菌细胞和细胞外多糖体 (EPSs) 的诺病毒 (GII.4,GII.6 P域) 的分析.
主要成果:
- 肠杆菌 (ODT-32) 没有与诺罗病毒GII.4或GII.6P域结合.
- 伪omonas composti (ODT-54) 特别与诺罗病毒 GII.6 P 域结合.
- 这种结合是由通过遗传和生物化学分析确定的PSL外聚糖介导的.
结论:
- 的消化道细菌表现出特定的结合特定的诺罗病毒基因型的菌株依赖的方式.
- Pseudomonas composti 的 Psl 外聚糖在诺罗病毒 GII.6 的结合中起着至关重要的作用.
- 这些发现增强了我们对诺罗病毒传播和环境持久性的理解.
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