Related Experiment Video
Updated: Jun 6, 2026
09:44
Characterization of a Pathogenic Escherichia coli Strain Derived from Oreochromis spp. Farms Using Whole-Genome Sequencing
Published on: December 23, 2022
Complete genome sequence of Streptococcus thermophilus strain ND03
Zhihong Sun1, Xia Chen, Jicheng Wang
1State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, 800 Lihu Avenue, Wuxi 1214122, China.
Journal of Bacteriology
|December 7, 2010
Summary
The complete genome sequence of Streptococcus thermophilus strain ND03, a dairy starter from China, was analyzed. This analysis provides insights into its genetic makeup compared to other related strains.
Area of Science:
- Microbiology
- Genomics
- Food Science
Background:
- Streptococcus thermophilus is a key bacterium in dairy fermentation, particularly for yogurt production.
- Strain ND03 is a commercial dairy starter originating from naturally fermented yak milk in China.
- Understanding the genome of dairy starter strains is crucial for optimizing fermentation processes.
Purpose of the Study:
- To present the complete genome sequence of Streptococcus thermophilus strain ND03.
- To compare the ND03 genome with other publicly available Streptococcus thermophilus genomes.
- To provide genomic insights into a commercially relevant Chinese dairy starter strain.
Main Methods:
- Whole-genome sequencing of Streptococcus thermophilus strain ND03.
- Bioinformatic analysis and comparative genomics.
- Genome assembly and annotation.
Main Results:
- The complete genome sequence of Streptococcus thermophilus strain ND03 has been successfully determined.
- Comparative analysis revealed unique genomic features of ND03 in relation to other sequenced strains.
- The genome sequence provides a foundation for understanding the strain's functional capabilities.
Conclusions:
- The genome sequence of Streptococcus thermophilus ND03 offers valuable data for dairy starter culture development.
- Genomic insights can aid in the selection and improvement of strains for yogurt manufacturing.
- This study contributes to the understanding of Streptococcus thermophilus diversity in China.
More Related Videos
Related Concept Videos
01:29Modern Molecular Taxonomy
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...
00:46Genomic DNA in Prokaryotes
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...
01:30Bacterial Phylum Spirochaetes
Spirochetes, unique bacteria in the phylum Spirochaetes, are gram-negative, motile, tightly coiled, slender, and flexible. They inhabit aquatic sediments and animals, with some causing diseases like syphilis. Spirochetes are classified into eight genera based on habitat, pathogenicity, phylogeny, and characteristics.Their distinctive motility arises from endoflagella, located within the cell’s periplasm. These endoflagella anchor at the cell poles and extend along the cell length, encased by a...
01:24Bacterial Phylum Tenericutes
The phylum Tenericutes, which includes the single class Mollicutes, comprises bacteria that lack cell walls. The term "Mollicutes" derives from the Latin word mollis, meaning "soft." These organisms are among the smallest known and are commonly referred to as mycoplasmas due to the prominence of the genus Mycoplasma, which includes well-known human pathogens. Despite their inability to stain gram-positively (a result of their lack of cell walls), mycoplasmas are phylogenetically related to the...
01:21Hyperthermophilic Bacteria
Domain Bacteria includes some unique hyperthermophilic species. They exhibit remarkable adaptations that enable survival in extreme environments.Thermotoga species are rod-shaped, gram-negative, non-sporulating hyperthermophiles that form a sheath-like envelope called a toga. They ferment sugars or starch, producing lactate, acetate, CO₂, and H₂, and can also grow via anaerobic respiration using H₂ and ferric iron. Found in hot springs and hydrothermal vents, over 20% of their genes show strong...