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非Clostridium botulinum菌株含有bont基因集群的机会特征

Tomasz Grenda¹, Anna Grenda², Anna Jakubczyk³

¹Department of Hygiene of Animal Feeding Stuffs, National Veterinary Research Institute in Pulawy, Patyzantow 57, 24-100 Pulawy, Poland.

Pathogens (Basel, Switzerland)

|September 28, 2024

概括

毒素基因集群在各种Clostridium物种和其他属中发现,而不仅仅是Clostridium botulinum. 一些物种表现出双重作用,作为食用动物或益生菌,同时也引起疾病,突出了微生物安全问题.

科学领域:

微生物学微生物学
遗传学遗传学是一个
食品安全食品安全

背景情况:

肉毒素 (bont) 基因群主要与肉毒 Clostridium botulinum 有关.
然而,在其他Clostridium物种 (例如,C. baratii,C. butyricum) 甚至在不同的属 (如Enterococcus faecium) 中也发现了类似的基因集群.
其中一些非C. botulinum物种具有双重性质,可以作为肠道共生物或益生菌,同时也可以作为机会性病原体.

研究的目的:

在Clostridium botulinum之外的微生物中调查类似肉毒素的基因集群的存在和影响.
要突出某些Clostridium菌株和其他携带这些集群的属的双重性质.
检查机会主义微生物中肉毒群表达的遗传机制和微生物安全方面.

主要方法:

关于肉毒素基因分布的研究的文献综述.
分析各种细菌物种中波特状集群的遗传数据.
评估这些微生物的病原性潜力和环境发生情况.

主要成果:

在C. baratii,C. butyricum,C. sporogenes和Enterococcus faecium等中存在类似肉类基因集群.
某些物种,如C.butyricum,可以既有益 (益生菌),又具有病原性 (引起肉毒,死性肠球炎).
在一些非C. botulinum物种中,bot相关基因的生物活性仍未完全阐明,这引发了潜在的安全问题.

结论:

毒素基因集群的分布比以前假设的更广泛,需要重新评估细菌分类.
这些微生物的双重性质强调了了解它们的遗传机制和生态作用的重要性.
进一步的研究对于评估与环境和临床环境中这些机会性细菌相关的微生物安全风险至关重要.

关键词:

在 BoNT BoNT 中使用.C. 巴拉蒂亚的情况在C. botulinum中使用.C. 黄油 (butyricum) 是一种植物.C. 杂草原体杂草原体克洛斯特里迪亚姆 (Clostridium) 是一种

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