两种细菌菌株的圆形基因组能够在含有CO2的大气中生长
David Heidler von Heilborn1, Alexander Bartholomäus2, André Lipski1
1Institute of Nutritional and Food Science, Food Microbiology and Hygiene, University of Bonn , Bonn, Germany.
Microbiology resource announcements
|November 29, 2023
概括
这项研究介绍了从肉制品中分离出来的两个细菌菌株 - - Brochothrix thermosphacta 和 Rathayibacter sp. 的圆形基因组. 纳米孔测序被用来分析这些在富含二氧化碳的大气下生长的细菌.
科学领域:
- 微生物学 微生物学
- 基因组学就是基因组学.
- 食品科学 食品科学 食品科学
背景情况:
- 布罗科特里克斯热和拉塔伊巴克特菌 sp. 是食物产品中发现的细菌.
- 改性大气层包装 (MAP) 用于延长食品的保质期.
- 了解细菌基因组对于食品安全和质量至关重要.
研究的目的:
- 测序和组装Brochothrix thermosphacta DH-B18和Rathayibacter sp. 的完整的圆形基因组. 在 DH-RSZ4.4 中.
- 为从生肉中分离出来的这些细菌物种提供基因组资源.
- 分析细菌适应于富含二氧化碳的环境.
主要方法:
- 细菌菌株从原始香肠和骨样本中分离.
- 在富含二氧化碳的改性大气中培养细菌.
- 使用纳米孔技术进行全基因组测序.
- 用于基因组组装和表征的生物信息分析.
主要成果:
- 对于Brochothrix thermosphacta DH-B18和Rathayibacter sp.均获得了完整的圆形基因组序列. 在 DH-RSZ4.4 中.
- 这些基因组为这些食物传播细菌的遗传构成提供了洞察力.
- 分析揭示了特定的基因组特征,可能与在富含二氧化碳的环境中生长有关.
结论:
- 提出的基因组代表了未来研究布罗科特里克斯热和拉萨菌种的宝贵资源.
- 基因组数据可以帮助理解在食品加工和储存中的细菌行为.
- 进一步的研究可以利用这些基因组来开发控制食品中腐烂或致病细菌的策略.
相关概念视频
Genomic DNA in Prokaryotes
43.9K
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...
43.9K
Prokaryotic Cells
35.0K
Prokaryotes are small unicellular organisms that include the domains — Archaea and Bacteria. Bacteria include many common microorganisms, such as Salmonella and E. coli, while the Archaea include extremophiles that live in harsh environments, such as volcanic springs.
Like eukaryotic cells, all prokaryotic cells are surrounded by a plasma membrane, have genetic material in the form of single, circular DNA, a cytoplasm that fills the interior of the cell, and ribosomes that synthesize...
Like eukaryotic cells, all prokaryotic cells are surrounded by a plasma membrane, have genetic material in the form of single, circular DNA, a cytoplasm that fills the interior of the cell, and ribosomes that synthesize...
35.0K
Bacterial Signaling
32.4K
Bacterial signaling can occur within bacteria (intracellular) or between bacteria (intercellular). At times, a group of bacteria behaves like a community. To achieve this, they engage in quorum sensing, the perception of higher cell density that causes changes in gene expression. Quorum sensing involves both extracellular and intracellular signaling. The signaling cascade starts with a molecule called an autoinducer (AI). Individual bacteria produce AIs that move out of the bacterial cell...
32.4K
Prokaryotic Transcriptional Activators and Repressors
21.1K
The organization of prokaryotic genes in their genome is notably different from that of eukaryotes. Prokaryotic genes are organized, such that the genes for proteins involved in the same biochemical process or function are located together in groups. This group of genes, along with their regulatory elements, are collectively known as an operon. The functional genes in an operon are transcribed together to give a single strand of mRNA known as polycistronic mRNA.
Transcription of prokaryotic...
Transcription of prokaryotic...
21.1K


