Sung-Keun Rhee

In-Tae Cha12
Kyung June Yim9
Seong Woon Roh9
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To optimize oligonucleotide probe design criteria, PCR products with different similarities to probes were hybridized to a functional gene microarray designed to detect homologous genes from different organisms. In contrast to more restrictive probe designs based on a single criterion, simultaneous consideration of the percent similarity (< or =90%), the(More)
The ammonium-oxidizing microbial community was investigated in a granular sludge anaerobic ammonium-oxidizing (anammox) reactor that was operated for about 1 year with high anaerobic ammonium oxidation activity (up to 0.8 kg NH(4)(+)-N m(-3) day(-1)). A Planctomycetales-specific 16S rRNA gene library was constructed to analyse the diversity of the anaerobic(More)
MOTIVATION Analysis of the functions of microorganisms and their dynamics in the environment is essential for understanding microbial ecology. For analysis of highly similar sequences of a functional gene family using microarrays, the previous long oligonucleotide probe design strategies have not been useful in generating probes. RESULTS We developed a(More)
Ammonia-oxidizing archaea (AOA) are ubiquitous and abundant and contribute significantly to the carbon and nitrogen cycles in the ocean. In this study, we assembled AOA draft genomes from two deep marine sediments from Donghae, South Korea, and Svalbard, Arctic region, by sequencing the enriched metagenomes. Three major microorganism clusters belonging to(More)
  • In-Tae Cha, Kyung June Yim, Hye Seon Song, Hae-Won Lee, Dong-Wook Hyun, Kil-Nam Kim +9 others
  • 2014
Two Gram-stain negative, rod-shaped and motile extreme halophiles, designated CBA1107T and CBA1108, were isolated from non-purified solar salt. Based on the phylogenetic analysis, strains CBA1107T and CBA1108 were shown to belong to the genus Halolamina, with similarities for the 16S rRNA gene sequences between strains CBA1107T and Halolamina pelagica(More)
A halophilic archaeal strain, designated CBA1105T, was isolated from non-purified solar salt. Strain CBA1105T was found to have three 16S rRNA genes, rrnA, rrnB and rrnC; similarities between the 16S rRNA gene sequences were 99.5–99.7 %. The phylogenetic analysis of the 16S rRNA gene sequences showed that strain CBA1105T forms a distinct clade with the(More)
Alluvial aquifers are one of the mainwater resources in many countries. Iron reduction in alluvial aquifers is often a major anaerobic process involved in bioremediation or causing problems, including the release of As trapped in Fe(III) oxide. We investigated the distribution of potential iron-reducing bacteria (IRB) in riverine alluvial aquifers (B1, B3,(More)
  • In-Tae Cha, Kyung June Yim, Hye Seon Song, Hae-Won Lee, Dong-Wook Hyun, Kil-Nam Kim +10 others
  • 2014
A halophilic archaeon, designed strain CBA1103T, was isolated from non-purified solar salt. The cells of strain CBA1103T were observed to be Gram-stain negative and pleomorphic, and the colonies appear red. Strain CBA1103T was observed to grow between 20 and 55 °C (optimum 37 °C), and in NaCl concentrations of 10–30 % (w/v) (optimum 15 %) with 0–0.5 M(More)
A novel, red-pigmented, pleomorphic and short rod-shaped haloarchaeon, designated B8T, was isolated from a salt-fermented seafood. Strain B8T was found to be able to grow at 20–45 °C, in the presence of 15–30 % (w/v) NaCl and at pH 7.0–9.0. The optimum requirements were found to be a temperature range of 35–40 °C, pH 8.0 and the presence of 25 % NaCl. The(More)
A novel mesophilic, methylotrophic, methanogenic archaeon, designated strain EK1T, was enriched and isolated from wetland sediment. Phylogenetic analysis showed that strain EK1T was affiliated with the genus Methanomethylovorans within the family Methanosarcinaceae, and shared the highest 16S rRNA and methyl-coenzyme M reductase alpha-subunit gene sequence(More)