Publications by authors named "Kaekyoung Kwon"
Article Synopsis
- Ammonia-oxidizing archaea (AOA) are important microorganisms in the ocean's carbon and nitrogen cycles, and this study focuses on their genomes from deep marine sediments in South Korea and the Arctic.
- Researchers identified two distinct AOA genomes named Ca. "Nitrosopumilus koreensis" AR1 and "Nitrosopumilus sediminis" AR2, revealing their genetic similarities and differences compared to other known AOA.
- The genomes exhibited unique traits, such as varying protein contents and a gene cluster for urea utilization in AR2, indicating specialization, and suggest interactions between AOA and co-cultured bacteria in terms of sulfur and nitrogen metabolism.
A photoautotrophic cyanobacterium, Rubidibacter lacunae was reported in 2008 for the first time. The type strain, KORDI 51-2(T), was isolated from seawater of Chuuk lagoon located in a tropical area. Although it belonged to a clade exclusively comprised of extremely halotolerant strains by phylogenetic analyses, R.
View Article and Find Full Text PDFAmmonia-oxidizing archaea (AOA) are ubiquitous in various marine environments and play important roles in the global nitrogen and carbon cycles. We here present a high-quality draft genome sequence of an ammonia-oxidizing archaeon, "Candidatus Nitrosopumilus koreensis" AR1, which was found to dominate an ammonia-oxidizing enrichment culture in marine sediment off Svalbard, the Arctic Circle. Despite a significant number of nonoverlapping genes (ca.
View Article and Find Full Text PDFA bacterial strain (B2-7(T)) capable of degrading a wide range of polycyclic aromatic hydrocarbon compounds (2-4 rings) was isolated from a water sample taken from Botan Oil Port in Xiamen, China. The isolate was Gram-negative, short-rod-shaped, aerobic, non-motile and formed yellow-pigmented colonies on LB medium. Cells of strain B2-7(T) were catalase-positive and oxidase-negative.
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