从奶酪盐水中分离的乳球菌BIM BV-114的全基因组分析,热和紫外线耐受性
Aliaksandra Herasimovich1, Artur Akhremchuk1, Leonid Valentovich1
1The Institute of Microbiology of the National Academy of Sciences of Belarus, Kuprevich str., 2, 220084, Minsk, Belarus.
Research in microbiology
|April 30, 2024
概括
这项研究描述了乳球菌菌体BIM BV-114的特征,一种Ceduovirus,详细介绍了其快速的溶解周期,热稳定性和UV耐受性. 这些发现有助于更好地了解用于乳制品工业控制的毒性菌体.
科学领域:
- 微生物学 微生物学
- 病毒学 病毒学
- 食品科学 食品科学 食品科学
背景情况:
- 乳球菌,特别是Ceduovirus,对乳制品生产中的Lactococcus lactis初始培养物构成重大威胁.
- 需要有效的控制策略来缓解乳制品设施中的菌体污染.
研究的目的:
- 从工业奶酪盐水中分离出来的毒性乳球菌BIM BV-114的特征.
- 研究其生物特性,基因组和与宿主防御机制的潜在相互作用.
主要方法:
- 乳球菌菌体BIM BV-114的分离和表征.
- 溶解周期参数的确定 (潜伏期,溶解时间).
- 对热稳定性和UV辐射耐受性的评估.
- 基因组测序和对开放式读取框架 (ORF) 的分析.
主要成果:
- 菌体BIM BV-114表现出一个短的溶解周期 (23±5分钟潜伏,90±5分钟溶解).
- 它表现出高热稳定性 (在95°C下7分钟后失活) 和UV耐受性 (15分钟失活时间).
- 基因组分析揭示了与其他ceduovirus的相似之处,其中特定的基因可能参与宿主相互作用和热耐受性.
结论:
- 菌体BIM BV-114非常适应于乳制品环境中的持久性.
- 了解其遗传构成和特性有助于开发乳制品技术中乳球菌的控制策略.
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