细菌菌体LMC感染Listeria monocytogenes从禽类便中获得的完整基因组序列
1Department of Food and Nutrition, College of Science and Technology, Kookmin University, Seoul, South Korea.
Microbiology resource announcements
|May 22, 2025
概括
在禽类便中发现了一种针对Listeria monocytogenes的新型细菌. 这种菌体对L. monocytogenes表现出显著的抗菌活性,为病原体控制提供了潜力.
科学领域:
- 微生物学 微生物学
- 病毒学 病毒学
- 基因组学就是基因组学.
背景情况:
- 李斯特菌 (Listeria monocytogenes) 是一种重要的食物传播病原体.
- 菌体为控制细菌感染提供了抗生素的潜在替代品.
研究的目的:
- 为了分离和描述一个向Listeria monocytogenes的菌体.
- 分析隔离的菌体的基因组和形态.
- 评估菌体对L. monocytogenes的抗菌疗效.
主要方法:
- 从禽类便中分离细菌菌体.
- 全基因组测序和分析.
- 传输电子显微镜用于形态学.
- 针对L. monocytogenes的抗菌分析.
主要成果:
- 一种针对Listeria monocytogenes的菌体 (LMC) 被成功分离出来.
- LMC基因组为42,151 bp,具有59个开放的读取框架和36.58%的GC含量.
- 菌体拥有一个二面体体和一个长的尾巴.
- 在LMC中,L. monocytogenes ATCC 19115.5的抗菌活性较高.
结论:
- 鉴定出来的LMC菌体是控制Listeria monocytogenes的一个有希望的候选物.
- 基因组和形态学数据为进一步的菌体应用开发提供了基础.
- 菌体疗法是对抗L. monocytogenes感染的一种可行的策略.
相关概念视频
Lysogenic Cycle of Bacteriophages
62.0K
In contrast to the lytic cycle, phages infecting bacteria via the lysogenic cycle do not immediately kill their host cell. Instead, they combine their genome with the host genome, allowing the bacteria to replicate the phage DNA along with the bacterial genome. The incorporated copy of the phage genome is called the prophage. Some prophages can re-activate and enter the lytic cycle. This often occurs in response to a perturbation, such as DNA damage, but can also transpire in the absence of...
62.0K
Lytic Cycle of Bacteriophages
70.5K
Bacteriophages, also known as phages, are specialized viruses that infect bacteria. A key characteristic of phages is their distinctive “head-tail” morphology. A phage begins the infection process (i.e., lytic cycle) by attaching to the outside of a bacterial cell. Attachment is accomplished via proteins in the phage tail that bind to specific receptor proteins on the outer surface of the bacterium. The tail injects the phage’s DNA genome into the bacterial cytoplasm. In the...
70.5K


