全基因组测序和比较基因组学揭示了Bacillus velezensis AM12的抗菌潜力和适应性特征
Qianqian Lin1, Fengzhi Pan1, JinJin Yang2
1College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, 524088, China.
Functional & integrative genomics
|January 17, 2026
概括
一种海洋细菌,Bacillus velezensis AM12,表现出广泛的抗菌活性. 它的基因组揭示了新的抗微生物化合物和潜在的新候选药物开发.
科学领域:
- 微生物学 微生物学
- 基因组学就是基因组学.
- 药物发现 药物发现 药物发现
背景情况:
- 抗微生物耐药性需要新的治疗药物.
- 海洋环境是独特的微生物的丰富来源,具有潜在的生物活性.
研究的目的:
- 为了隔离和表征一种具有抗菌性质的海洋Bacillus velezensis菌株.
- 阐明其广谱活动的基因组基础.
- 为了确定新的抗微生物候选者.
主要方法:
- 隔离和选的海洋细菌.
- 全基因组测序和Bacillus velezensis AM12的分析.
- 对二次代谢物基因集群的生物信息挖掘 (antiSMASH,BAGEL4).
- 对抗微生物预测的比较基因组学和机器学习.
主要成果:
- 百菌 velezensis AM12 证明了对八种食源性病原体的抑制活性.
- 基因组分析显示了14个二次代谢物和4个细菌/RiPP位点.
- 确定了新型细菌素样群 (ComX,LCI) 和独特的杀菌素成分.
- 使用机器学习预测了七种高可信度抗微生物候选物.
结论:
- B. velezensis AM12的基因组为其广泛的抗菌活性提供了洞察力.
- 新型抗微生物化合物和独特的细菌素表明潜在的新药线索.
- 建立了一个系统的框架,用于从基因组数据中识别新的抗微生物.
更多相关视频
09:44Characterization of a Pathogenic Escherichia coli Strain Derived from Oreochromis spp. Farms Using Whole-Genome Sequencing
Published on: December 23, 2022
2.8K
08:58Isolation and Identification of Waterborne Antibiotic-Resistant Bacteria and Molecular Characterization of their Antibiotic Resistance Genes
Published on: March 3, 2023
7.7K
相关概念视频
Modern Molecular Taxonomy
599
Advancements in molecular biology have revolutionized the identification and characterization of bacteria, with multiple methods leveraging DNA sequencing for enhanced precision. As sequencing technologies improve and costs decline, these approaches are increasingly used in clinical, environmental, and evolutionary studies.Multilocus Sequence Typing (MLST) examines several housekeeping genes, essential chromosomal genes encoding cellular functions, to distinguish strains. Approximately...
599
Antibiotic Selection
59.4K
Overview
59.4K
Applications of Molecular Taxonomy
517
Molecular taxonomy has revolutionized the understanding and classification of bacteria, providing precise insights into their diversity, evolutionary relationships, and ecological roles. By utilizing molecular techniques such as DNA sequencing and fingerprinting, researchers have made significant strides in various fields related to bacterial studies.Resolving Taxonomic AmbiguitiesMolecular taxonomy has been instrumental in distinguishing closely related bacterial species initially thought to...
517
Development of Antibiotic Resistance
1.3K
Antibiotic resistance is a major public health concern that arises when bacteria evolve mechanisms to withstand the effects of antibiotic treatments. This resistance can be intrinsic, acquired through genetic mutations, or transferred between bacteria via horizontal gene transfer. The development of antibiotic resistance poses significant challenges in treating bacterial infections and necessitates ongoing research to develop new therapeutic strategies.Intrinsic resistance occurs when bacterial...
1.3K
Genomic DNA in Prokaryotes
48.3K
The genome of most prokaryotic organisms consists of double-stranded DNA organized into one circular chromosome in a region of cytoplasm called the nucleoid. The chromosome is tightly wound, or supercoiled, for efficient storage. Prokaryotes also contain other circular pieces of DNA called plasmids. These plasmids are smaller than the chromosome and often carry genes that confer adaptive functions, such as antibiotic resistance.
Genomic Diversity in Bacteria
Although bacterial genomes are much...
Genomic Diversity in Bacteria
Although bacterial genomes are much...
48.3K
Defense Against Bacterial Pathogens
2.6K
The human immune system is a complex network of cells, tissues, and organs that work together to defend the body against bacterial infections. It consists of various immune cells, each playing a specific role in the defense mechanism.
Phagocytes
Phagocytes are the frontline soldiers of the immune system. They include neutrophils and macrophages. Neutrophils are the most abundant type of white blood cell and are quickly mobilized to the site of infection. Macrophages are larger cells that patrol...
Phagocytes
Phagocytes are the frontline soldiers of the immune system. They include neutrophils and macrophages. Neutrophils are the most abundant type of white blood cell and are quickly mobilized to the site of infection. Macrophages are larger cells that patrol...
2.6K
