• Title/Summary/Keyword: New genus

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Antioxidant and antimicrobial constituents of Crucianella maritima L.

  • Badr, Jihan M.
    • Natural Product Sciences
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    • v.14 no.4
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    • pp.227-232
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    • 2008
  • Phytochemical further investigation of the chloroform extract of the aerial parts of Crucianella maritima L. (Rubiaceae) growing in Egypt resulted in the isolation of a new anthraquinone; 3-formyl-1-hydroxy-2-methoxy anthraquinone (3) along with the four known compounds isolated for the first time from the genus Crucianella; alizarin-1-methyl ether (2), 1,4-dihydroxy-2-methoxy anthraquinone (5), 1, 3, 6-trihydroxy-2-methoxy anthraquinone (7) and the flavonol kaempferol (8), beside four known compounds previously isolated from the same plant. The structures of the isolated compounds were established based on different spectroscopic data including UV, IR, EIMS, 1D and 2D-NMR. Moreover, the antioxidant and antimicrobial activities of the isolated compounds were evaluated.

Lignans from Lonicerae caulis

  • Yean, Min-Hye;Kim, Ju-Sun;Lee, Je-Hyun;Kang, Sam-Sik
    • Natural Product Sciences
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    • v.16 no.1
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    • pp.15-19
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    • 2010
  • A new 2,7'-cyclolignan named lonicerinol (1) along with eight known lignans, (-)-epipinoresinol (2), (-)-pinoresinol (3), $9{\alpha}$-hydroxypinoresinol (4), 7R,8S-dihydrodehydrodiconiferyl alcohol (5), ($\pm$)-neo-olivil (6), (+)-isolariciresinol (7), 3-methoxy-8,4'-oxyneoligna-3',4,7,9,9'-pentol (8), and (-)-pinoresinol 4-O-glucoside (9), were isolated from the caulis of Lonicera japonica THUNB. (Caprifoliaceae). All of these constituents except for (-)-pinoresinol (3) and $9{\alpha}$-hydroxypinoresinol (4) are reported for the first time from the genus Lonicera. The structures and absolute configurations of these compounds were determined on the basis of spectroscopic analysis, including CD and 1D- and 2D-NMR techniques and chemical methods.

New Reports of Snapping Shrimps, Alpheus paralcyone and A. spongiarum (Decapoda: Caridea: Alpheidae) from Korea (한국미기록 원통발딱총새우와 해면원통발딱총새우(십각목 : 생이절 : 딱총새우과) 의 보고)

  • Hyeyoung Koo;Kim, Won
    • Animal Systematics, Evolution and Diversity
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    • v.20 no.1
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    • pp.21-29
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    • 2004
  • As a result of continuous taxonomic study on shrimps collected from Korean waters, two alpheid shrimps, Alpheus paralcyone and A. spongiarum, are newly reported from Korean waters. These species belong to the crinitus group of the genus Alpheus. Korean Alpheidae fauna now consists of 18 species of six genera.

First Report of Two Diogenid Species of Hermit Crabs (Crustacea: Decapoda: Anomura) from Korea

  • Jung, Jibom;Kim, Won
    • Animal Systematics, Evolution and Diversity
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    • v.31 no.2
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    • pp.107-113
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    • 2015
  • Two diogenid hermit crab species, Dardanus lagopodes and Diogenes deflectomanus, are newly reported from Korea. Dardanus lagopodes is distinguished from the other species of genus Dardanus in Korea by having setae with cream-colored tips on the cephalothorax and the following characteristics: ocular peduncles somewhat longer than antennular peduncles, and the pereopod without a longitudinal sulcus and scute-like projections. Diogenes deflectomanus is similar to D. nitidimanus but can be distinguished by having the fixed finger of the left cheliped bent slightly downwardly and the following characteristics: slightly shorter ocular peduncle, elongated left cheliped with small granules on the surface, right cheliped without calcareous teeth on the cutting edge of the dactylus, and the minute spine of post-median margin of the telson is not well developed. The geographical distributions of these two species are extended by the present study. In particular, D. deflectomanus in the current study is the first report outside Chinese waters. Now, 20 species of the family Diogenidae are known in Korean waters.

First Records of Three Crabs (Crustacea: Decapoda) from Korea

  • Lee, Kyu-Hyun;Ko, Hyun-Sook
    • Animal Systematics, Evolution and Diversity
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    • v.24 no.1
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    • pp.17-24
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    • 2008
  • Three crab species, Macromedaeus orientalis, Eriphia smithi, and Ocypode cordimana, from Jejudo Island are recorded for the first time in Korea. M. orientalis was collected under the rocks by SCUBA diving in 20m and at low tidal mark. However, E. smithi and O. cordimana were collected in crevices of the rock at low tidal mark and in a burrow of sand beach at supra tidal mark, respectively. At present, E. smithi is the only species of the genus represented in Korean waters. Including the new records in this study, the established brachyuran fauna in Korea now comprises 203 species.

Checklist of Mosquitoes (Culicidae) in Korea (한국산 모기과(Culicidae)의 목록)

  • 이관우
    • Parasites, Hosts and Diseases
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    • v.25 no.2
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    • pp.207-209
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    • 1987
  • A systematic mosquito taxonomic study in Korea was established by Lee in 1971. Since then, many species have been recorded as new to Korea. However, much of this taxonomic information has been distributed in a number of scientific publications. This fork attempts to combine this information into a single document, as well as to synthesize revised taxonomic synonyms of species cccurring in Korea. Four species, Culex vora.x, Culex kangi, Aedes kobayashii and Culiseta kanayamensis listed in our previous paper, are synonyms of Culex kalifaxii, Cutex jackseni, Aedes alehtorowi and Culiseta bergrothi, respectively. Culex annulus is a misidentified species of Culex pseudovishnui. The subspecies Cutes pipiens quinquefassiatus and subgenus Manscnia (Ccquillettidia) were treated as full species and genus respectively in a catalog of the mosquitoes of the world. However, not all current authors agree to those specific and generic treatment. Based on available publications the total number of mosquito species recorded in Korea is now 52 representing 9 genera. Forty-five of these 52 are confirmed species with preserved specimen representation. As collection of specimen continues, there is a possibility that representative of 7 unconfirmed species will be found. 1 hope this paper will provide useful information for entomology workers who are interested in mosquito taxonomy in Korea.

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First Record of Cladosiphon umezakii (Ectocarpales, Phaeophyceae)in Korea

  • Cho, Ga-Youn;Boo, Sung-Min
    • ALGAE
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    • v.24 no.2
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    • pp.79-83
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    • 2009
  • Recently deschbed new species, Cladosiphon umezakii Ajisaka (Ectocarpales,Phaeophyceae) is reported in Korea based on morphology and plastid rbcL sequences. Cladosiphon umezakii occurred on low intertidal to subtidal zone along the south and southeast coasts in Korea. Thalli are gold to dark brown, ercct, cylindrical, irregularly branched,and very mucoid. Unitocular zoidangium is developed at the base uf assimilatory filaments. Assimilatory filaments are very long. Eight specimens of the pecies collected from Korea clustered with those of C. umezakii in Japan in rbcL tree. The pecies showed a sister relationship with C. okamuranus. The occurrence of this warm water species is thought an example of northward migration of marine algae caused by global warming. Because C. umezakii is of the economica! importance of the genus as foods and medidnes, the study on mass culture of the species is necessary in korea.

A New Species of the Genus Pseudodiaptomus(Copepoda, Calanoida) from Korean Estuarine Waters with Remarks on its Molecular Variation

  • Soh, Ho-Young;Suh, Hae-Lip
    • Proceedings of the Korean Society of Fisheries Technology Conference
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    • 2001.05a
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    • pp.471-472
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    • 2001
  • Recently many studies show that genetic characters can be used to provide unambiguous taxonomic discrimination when morphological characters are not practical for routine identification to species level (Bucklin et al., 1996, 1998; Lindeque et al., 1999). The internal transcribed spacer (ITS) regions of the nuclear ribosomal DNA are also one of appropriate markers for species-level studies because it contains sufficient diversity to address intra- and interspecific phylogenetic relationships in invertebrates (Odorico and Miller,1997; Schizas et al., 1999). (omitted)

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Pseudolepidapedon kobayashii (Digenea: Allocreadiidae) from the Olive Flounder (Paralichthys olivaceus) of the Korean Southern Sea (남해 연안 넙치(Paralichthys olivaceus)에 기생하는 이생흡충류, Pseudolepidapedon kobayashii, 1종에 대한 국내 보고)

  • Kim, Ki-Hong;Kwon, Se-Ryun;Ahn, Kyoung-Jin;Huh, Sung-Hoi
    • Journal of fish pathology
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    • v.12 no.1
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    • pp.63-65
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    • 1999
  • Pseudolepidapedon kobayashii collected from the alimentary canal of the olive flounder, Paralichthys olivaceus, which were caught at the Chinhae Bay, was reported for the first time in Korea, and P. olivaceus was recorded as a new host for P. kobayshii. The morphological characteristics of P. kobayashii were described and compared with the other species in the genus.

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Characterization of a New Leuconostoc Species Isolated from Fresh Garlic

  • Lee, Se-Hi;Choi, Jong-Hoon;Kim, Youn-Soon;Kyung, Kyu-Hang
    • Food Science and Biotechnology
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    • v.14 no.3
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    • pp.416-419
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    • 2005
  • Unknown bacterium isolated from garlic was characterized using phenotypic methods, phylogenetic analysis, DNA-DNA hybridization, and cultural methods. The strain was identified as typical leuconostoc; Gram-positive, non-sporeforming, heterofermentative, catalase-negative and spherical. Although its 16S rRNA gene sequence showed high homology to Leuconostoc argentinum DSM $8581^T$(99.8%), DNA-DNA hybridization experiments indicated it represents novel genomic species in the genus Leuconostoc. The garlic-specific leuconostoc was more resistant to antimicrobial activity of garlic compared to other common laboratory lactic acid bacteria, and was even stimulated by low concentrations (1-2%) of garlic extract supplemented in trypticase soy broth. Growth stimulation was concentration-dependent when tested with residual aqueous layer after solvent extraction of fresh whole garlic extract.