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Jeong, Woong-Seob,Matsumoto, Toshio,Seon, Kwang-Il,Lee, Dae-Hee,Ree, Chang-Hee,Park, Young-Sik,Nam, Uk-Won,Pyo, Jeong-Hyun,Moon, Bong-Kon,Park, Sung-Joon,Cha, Sang-Mok,Park, Jang-Hyun,Lee, Duk-Hang,Le 한국우주과학회 2010 한국우주과학회보 Vol.19 No.1
The main payload of STSAT-3 (Science and Technology Satellite 3), MIRIS (Multipurpose InfraRed Imaging System) is the first Korean infrared space mission to explore the near-infrared sky with a small astronomical instrument, which is being developed by KA
Comparative analysis of chloroplast genomes and 45S nuclear ribosomal DNAs within 9 perilla species
Seon-Hwa Bae,In-Seon Jeong,Ye-Ji Lee,Myoung-Hee Lee,Jeong-Hee Lee,Ung-Han Yoon,Jang-Ho Hahn,Tae-Ho Kim 한국육종학회 2015 한국육종학회 심포지엄 Vol.2015 No.07
Perilla is a annual herb plant of the mint family, Laminaceae and mainly cultivated in eastern Asia, i.e. Korea, China and Japan. In response to an increased interest for healthy supplement food from the public, people are focusing on the properties of perilla. The applicable parts of perilla plants are the leaves and seeds. Perilla has been cultivated as a source of unsaturated fatty acid oil. But in spite of advantage of the important nutritional traits the genome or molecular studies on perilla remains largely unknown. Sequence comparisons of chloroplast (cp) genomes or nuclear ribosomal DNA (nrDNA) are of great important to provide a evidence for taxonomic studies or species identification or understanding mechanisms that underlie the evolution of perilla species. So, we tried to study a structural analysis of perilla genome and 45s nrDNA using 9 species (3 Diploid; Perilla B-17, P. hirtella, P. setoyensis / 6 Tetraploid; YCPL 285, YCPL 170, YCPL 205-1, YCPL 181-1, YCPL 177-1, YCPL 207-1). The complete cp genome and nrDNA of 9 perilla species were determined using Illumina sequencing technology and analyzed on the variance in base level between perilla B-17 and salvia miltiorrhiza. Total chloroplast genome size of perilla B-17 as a reference was 152,589 bp in length. We also identified an slightly overlapped intergenic regions between salvia miltiorrhiza and B-17. The results above will contribute to growing of molecular or genome structure and functional genomics of perilla available in studying perilla biology. For further study, we will look for genetic diversity of perilla species.
Le Ve Van,Ko So-Ra,Kang Mingyeong,Jeong Seonah,Oh Hee-Mock,Ahn Chi-Yong 한국미생물·생명공학회 2023 Journal of microbiology and biotechnology Vol.33 No.11
The three Gram-negative, catalase- and oxidase-positive bacterial strains RS43T , HBC28, and HBC61T , were isolated from fresh water and subjected to a polyphasic study. Comparison of 16S rRNA gene sequence initially indicated that strains RS43T , HBC28, and HBC61T were closely related to species of genus Curvibacter and shared the highest sequence similarity of 98.14%, 98.21%, and 98.76%, respectively, with Curvibacter gracilis 7-1T . Phylogenetic analysis based on genome sequences placed all strains within the genus Curvibacter. The average nucleotide identity (ANI) and digital DNA–DNA hybridization (dDDH) values between the three strains and related type strains supported their recognition as two novel genospecies in the genus Curvibacter. Comparative genomic analysis revealed that the genus possessed an open pangenome. Based on KEGG BlastKOALA analyses, Curvibacter species have the potential to metabolize benzoate, phenylacetate, catechol, and salicylate, indicating their potential use in the elimination of these compounds from the water systems. The results of polyphasic characterization indicated that strain RS43T and HBC61T represent two novel species, for which the name Curvibacter microcysteis sp. nov. (type strain RS43T =KCTC 92793T =LMG 32714T ) and Curvibacter cyanobacteriorum sp. nov. (type strain HBC61T =KCTC 92794T =LMG 32713T ) are proposed.
Anti-inflammatory Activity of Pyrrolizidine Alkaloids from the Leaves of Madhuca pasquieri (Dubard).
Hoang, Le Son,Tran, Manh Hung,Lee, Joo Sang,To, Dao Cuong,Nguyen, Van Thu,Kim, Jeong Ah,Lee, Jeong Hyung,Woo, Mi Hee,Min, Byung Sun Pharmaceutical Society of Japan 2015 Chemical & pharmaceutical bulletin Vol. No.
<P>A novel pyrrolizidine alkaloids, madhumidine A (1), and two known alkaloids, lindelofidine benzoic acid ester (2) and minalobine B (3) were isolated from the leaves of Madhuca pasquieri (Dubard) H. J. LAM. The chemical structures of these alkaloids were established mainly by NMR techniques and mass spectrometry. Their anti-inflammatory activity was evaluated against lipopolysaccharide-induced nitric oxide production in macrophage RAW264.7 cell. In addition, the cytotoxic activity of all isolated compounds was tested against a panel of cancer cell lines.</P>