Cho, Jang-Cheon


Publications
10

Cultivation of marine bacteria of the SAR202 clade

Citation
Lim et al. (2023). Nature Communications 14 (1)
Names
“Lucifugimonas marina” “Lucifugimonas” “Lucifugimonadales” “Lucifugimonadaceae”
Abstract
AbstractBacteria of the SAR202 clade, within the phylum Chloroflexota, are ubiquitously distributed in the ocean but have not yet been cultivated in the lab. It has been proposed that ancient expansions of catabolic enzyme paralogs broadened the spectrum of organic compounds that SAR202 bacteria could oxidize, leading to transformations of the Earth’s carbon cycle. Here, we report the successful cultivation of SAR202 bacteria from surface seawater using dilution-to-extinction culturing. The grow

Metabolic Versatility of the FamilyHalieaceaeRevealed by the Genomics of Novel Cultured Isolates

Citation
Li et al. (2023). Microbiology Spectrum 11 (2)
Names
Litorirhabdus singularis Ts Marimicrobium litorale Litorirhabdus Seongchinamella marina Paraluminiphilus aquimaris Ts Paraluminiphilus
Abstract
Although the familyHalieaceae(OM60/NOR5 clade) is an abundant and cosmopolitan clade widely found in coastal seas and involved in interactions with phytoplankton, a limited number of cultured isolates are available. In this study, we isolated six pure culturedHalieaceaestrains from coastal seawaters and performed a comparative physiological and genomic analysis to give insights into the phylogeny and metabolic potential of this family.

Heme auxotrophy in abundant aquatic microbial lineages

Citation
Kim et al. (2021). Proceedings of the National Academy of Sciences 118 (47)
Names
“Planktophila rubra” “Planktophila aquatilis”
Abstract
Significance Heme is essential for respiration. As a cofactor of cytochromes, heme functions as a main electron carrier in all respiratory electron transport chains. Therefore, it is natural to expect all respiring and free-living microorganisms to make heme. Against this expectation, here we show that the acI lineage, one of the most abundant bacterial groups in freshwater environments, is unable to biosynthesize heme and requires exogenous heme. Furthermore, we provide genomic eviden

Culturing the ubiquitous freshwater actinobacterial acI lineage by supplying a biochemical ‘helper’ catalase

Citation
Kim et al. (2019). The ISME Journal 13 (9)
Names
“Planktophila aquatilis” “Planktophila rubra”
Abstract
Abstract The actinobacterial acI lineage is among the most successful and ubiquitous freshwater bacterioplankton found on all continents, often representing more than half of all microbial cells in the lacustrine environment and constituting multiple ecotypes. However, stably growing pure cultures of the acI lineage have not been established despite various cultivation efforts based on ecological and genomic studies on the lineage, which is in contrast to the ocean from which abun

Genome Sequence of “Candidatus Aquiluna” sp. Strain IMCC13023, a Marine Member of the Actinobacteria Isolated from an Arctic Fjord

Citation
Kang et al. (2012). Journal of Bacteriology 194 (13)
Names
Aquiluna “Aquiluna rubra”
Abstract
ABSTRACT We report the genome sequence of actinobacterial strain IMCC13023, isolated from arctic fjord seawater. Phylogenetic analysis of 16S rRNA gene showed that the strain is related to “ Candidatus Aquiluna rubra.” The genome information suggests that strain IMCC13023 is a photoheterotroph carrying actinorhodopsin, with the smallest genome ever reported for a free-living member of the Actinobacteria .

Complete Genome Sequence of “ Candidatus Puniceispirillum marinum” IMCC1322, a Representative of the SAR116 Clade in the Alphaproteobacteria

Citation
Oh et al. (2010). Journal of Bacteriology 192 (12)
Names
Puniceispirillum marinum Ts Puniceispirillum
Abstract
ABSTRACT The complete genome sequence of “ Candidatus Puniceispirillum marinum” IMCC1322, the first cultured representative of the SAR116 clade in the Alphaproteobacteria , is reported here. The genome contains genes for proteorhodopsin, aerobic-type carbon monoxide dehydrogenase, dimethylsulfoniopropionate demethylase, and C 1 compound metabolism. The genome information proposes the SAR116 group to be

Litoricolaceae fam. nov., to include Litoricola lipolytica gen. nov., sp. nov., a marine bacterium belonging to the order Oceanospirillales

Citation
Kim et al. (2007). International Journal of Systematic and Evolutionary Microbiology 57 (8)
Names
Litoricolaceae
Abstract
A Gram-negative, non-motile, chemoheterotrophic, facultatively aerobic, short-rod-shaped bacterium, designated IMCC1097T, was isolated from coastal seawater (10 m depth) of the East Sea, Korea. The temperature, pH and NaCl ranges for growth were 15–30 °C, pH 5.0–10.0 and 1.5–10 % NaCl. The colonies of the strain were very small, having a mean diameter of 0.05 mm. 16S rRNA gene sequence data indicated that the strain was most closely related to genera within the class Gammaproteobacteria. Members

Puniceicoccus vermicola gen. nov., sp. nov., a novel marine bacterium, and description of Puniceicoccaceae fam. nov., Puniceicoccales ord. nov., Opitutaceae fam. nov., Opitutales ord. nov. and Opitutae classis nov. in the phylum ‘Verrucomicrobia’

Citation
Choo et al. (2007). International Journal of Systematic and Evolutionary Microbiology 57 (3)
Names
Puniceicoccaceae Opitutia “Didemniditutus”
Abstract
A Gram-negative, chemoheterotrophic, facultatively anaerobic coccus, designated IMCC1545T, was isolated from the digestive tract of a marine clamworm, Periserrula leucophryna, inhabiting a tidal flat of the Yellow Sea. Cells of strain IMCC1545T are non-motile, dividing by binary fission. The predominant fatty acids are anteiso-C15 : 0 and C18 : 0. The respiratory quinone is menaquinone-7 and the DNA G+C content is 52.1 mol%. Phylogenetic analyses based on 16S rRNA gene sequences using three tree