- Genomics and Phylogenetic Studies
- Microbial Community Ecology and Physiology
- Ginseng Biological Effects and Applications
- Pharmacological Effects of Natural Compounds
- Plant tissue culture and regeneration
- Aquatic Ecosystems and Phytoplankton Dynamics
- Natural product bioactivities and synthesis
- Enzyme Production and Characterization
- Protist diversity and phylogeny
- Olfactory and Sensory Function Studies
- Marine and coastal ecosystems
- Phytochemical compounds biological activities
- Microbial Metabolism and Applications
- Bee Products Chemical Analysis
- Biofuel production and bioconversion
- Chemical and Physical Properties in Aqueous Solutions
- Infections and bacterial resistance
- Biological Activity of Diterpenoids and Biflavonoids
- Circadian rhythm and melatonin
- Biochemical Analysis and Sensing Techniques
- Methane Hydrates and Related Phenomena
- Paraquat toxicity studies and treatments
- Heme Oxygenase-1 and Carbon Monoxide
- Marine and environmental studies
- Medicinal Plant Pharmacodynamics Research
National Institute of Biological Resources
2013-2022
Chung-Ang University
2013-2022
Korea Advanced Institute of Science and Technology
2005-2006
The taxonomic positions of six strains (including the type strain) Chryseobacterium meningosepticum ( King 1959 ) Vandamme et al. 1994 and strain miricola Li 2004 were re-evaluated by using a polyphasic approach. Phylogenetic analysis, based on 16S rRNA gene sequencing, showed that represent separate lineage from Chryseobacterium–Bergeyella–Riemerella branch within family Flavobacteriaceae (90·7–93·9 % similarities), which was supported phenotypic differences. Combined phylogenetic data C....
Confocal and scanning electron microscopic observations have previously shown the strong bacterial association of Microcystis aeruginosa cells on their surfaces. DNA-based analyses associated communities were carried out using two M. strains grown in laboratory eight newly collected cyanobacterial bloom samples. was most predominant species (66-100%) within phylum Cyanobacteria. Rhizobium, Hydrogenophaga Brevundimonas commonly found, Flavobacterium present all In total, 396 colonies from...
A Gram-stain-negative, non-spore-forming, facultatively anaerobic bacterium, designated strain SC18(T), was isolated from a tidal flat of Suncheon bay in South Korea. Cells were rod-shaped and motile by means polar flagellum. catalase-, oxidase- β-haemolysis-positive. Growth observed at 4-37 °C (optimum, 25-30 °C), pH 5.0-9.0 7.0) the presence 0-5.0 % (w/v) NaCl 0-2 %). The major cellular fatty acids summed feature 3 (comprising C16 : 1ω7c and/or 1ω6c), iso-C15 0 0. lipid pattern indicated...
Background: Several studies have reported that ginsenoside Rg3(S) is effective in treating metastatic diseases, obesity, and various cancers, however, its presence white ginseng cannot be estimated, only a limited amount present red ginseng. Therefore, the use of recombinant glycosidases from Generally Recognized As Safe (GRAS) host strain promising approach to enhance production Rg3(S), which may improve nutritional activity, human health, quality life. Method: Lactobacillus...
A novel xylan-degrading bacterium, S3-E T , was isolated from the biofilm of a membrane bioreactor. The cells this strain were Gram-positive, non-motile, non-spore-forming rods, produced primary branches and formed yellow colonies on nutrient agar. had chemotaxonomic markers that consistent with classification in genus Microbacterium i.e. MK-12, MK-11 MK-13 as major menaquinones, predominant iso- anteiso-branched cellular fatty acids, glucose galactose cell-wall sugars, peptidoglycan-type B2...
In this study, deep eutectic solvents (DESs) were synthesized using different ratios of choline chloride (CC) and dicarboxylic acids, their temperatures determined. The DES CC glutaric acid (GA), which showed a higher extraction efficiency than conventional solvents, was used for the flavonoid components from Pyrus ussuriensis leaves (PUL), evaluated response surface methodology. rutin, hyperoside, isoquercitrin identified through high-performance liquid chromatography (HPLC), equipped with...
A xylanolytic bacterium, US15 T , was isolated from swamp forest soil in Ulsan, Korea. The cells of the novel strain were Gram-positive, non-motile, short-rod-shaped and showed chemotaxonomic properties that consistent with its classification genus Microbacterium . Chemotaxonomic results MK-12 MK-11 as major menaquinones, predominating iso- anteiso-branched cellular fatty acids, glucose, galactose mannose cell-wall sugars, peptidoglycan-type B2 β glycolyl residues a DNA G+C content 66·5...
A Gram-stain-negative, strictly aerobic and halotolerant bacterial strain, designated strain NAP41T, was isolated from a sea tidal flat in the Yellow Sea of South Korea. Cells were non-motile cocci showing oxidase- catalase-positive activities. Growth NAP41T observed at 15-40 °C (optimum, 37 °C), pH 6.5-9.0 7.0-7.5) presence 0.5-12 % (w/v) NaCl 2 %). Strain contained summed feature 8 (comprising C18 : ω7c/C18 1ω6c) 0 as major fatty acids ubiquinone-10 sole isoprenoid quinone....
Ginsenoside Rh2(S) is a promising compound for the prevention of various kinds cancers, inflammation, and diabetes. However, due to its low concentration (<0.02%), researchers are still trying find an efficient glycoside hydrolase scaled-up production Rh2(S).Three hydrolases (BglBX10, Abf22-3, BglSk) were cloned in Escherichia coli BL21 (DE3) expressed recombinant enzyme was used through conversion PPD-type (protopanaxadiol) major ginsenosides (Rb1, Rc, Rd, except Rb2) extracted from Korean...
Strain MaA-C15 T , a Gram-stain-negative, non-spore-forming and strictly aerobic bacterium, was isolated from xenic culture of Microcystis aeruginosa in the Republic Korea. Cells were motile rods showing positive reactions catalase oxidase tests. Growth observed between 15 37 °C (optimum, 30 °C), pH 6.0 11.0 7.5) presence 0–2.0 % (w/v) NaCl 0 %). contained C 16 : 11-methyl-C 18 1 ω 7 c cyclo-C 19 8 summed feature (C 6 and/or ) as major cellular fatty acids ubiquinone-10 sole respiratory...
A Gram-stain-negative, strictly aerobic, catalase-positive and oxidase-positive bacterium, designated strain HR-AST, was isolated from a water sample of the Han River located in Republic Korea. Cells were motile rods with polar flagellum. Growth observed at 5-35 °C (optimum 25 °C) pH 6-8 7) presence 0-2 % (w/v) NaCl 0 %). Phylogenetic analysis based on 16S rRNA gene sequences revealed that HR-AST formed tight phylogenic lineage Zavarzinia compransoris LMG 5821T. Strain most closely related...
Cyanobacterial blooms are a global concern due to their adverse effects on water quality and human health. Therefore, we examined the of various compounds Microcystis aeruginosa growth. We found that NIES-298 cells were lysed rapidly by linear six-carbon sugar alcohols including mannitol, galactitol, iditol, fucitol, sorbitol, but not other alcohols. Microscopic observations revealed mannitol treatment induced crumpled inner membrane, an increase in periplasmic space, uneven cell surface...
Human epidermis is positioned at the interface with external environment, protecting our bodies against challenges, including air pollutants. Emerging evidence suggests that diesel particulate extract (DPE), a major component of pollution, leads to impairment diverse cellular functions in keratinocytes (KC). In this study, we investigated mechanism underlying DPE-induced KC apoptosis. We first addressed cell death occurring exposed DPE, paralleled by increased activation NADPH oxidases...
The fungus Aspergillus oryzae strain BP2-1 was isolated from the traditional malted starter culture nuruk. We report here draft whole-genome sequence of A. BP2-1, which is comprised 14 scaffolds with a total length 39,455,382 bp and GC content 47.13%.