• Title/Summary/Keyword: taxonomic study

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Molecular Epidemiology of Listeria monocytogenes by Ribotyping

  • Yang, Byoung-Seon
    • Biomedical Science Letters
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    • v.8 no.2
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    • pp.77-82
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    • 2002
  • Ten Listeria monocytogenes were isolated from clinical specimens and mussels, and their physio-biochemical characters were compared with the type strains. Ribotyping was used as a taxonomic tool to determine molecular epidemiological marker. Chromosomal DNA was cleaved with restriction enzymes HindIII and EcoRI. The fragment were subjected to Southern blot hybridization with 165 rDNA from B. subtilis by PCR. EcoRI patterns of Listeria strains showed 6 to 8 bands ranging from 0.75 kb to 11 kb band and they were classified into 6 groups. In comparison, HindIII patterns revealed that 5 to 7 bands ranging from 2.75 kb to 7.75 kb band and they classified into 5 groups. The various patterns of Listeria strains were observed within genus, species and isolated sources. 165 rRNA gene restriction patterns (ribotyping) are useful in epidemiological and taxonomic study.

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A Taxonomic Review of the Genus Tachinus Gravenhorst in Korea (Insecta: Coleoptera: Staphylinidae) (한국산 시베리아뾰족반날개속 (곤충강: 딱정벌레목: 반날개과)의 분류학적 재검토)

  • Kim, Hye-Jin;Ahn, Kee-Jeong
    • Korean Journal of Environmental Biology
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    • v.18 no.1
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    • pp.125-131
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    • 2000
  • A taxonomic study of the tachyporine genus Tachinus Gravenhorst in Korea is presented. Five species are recognized, three of which are reported for the first time in Korea [Tachinus (Tachinoderus) nigriceps Sharp, Tachinus (Tuchinus) sharpi Bernhauer & Schubert, and Tachinus (Tachinus) yezoensis Li]. The differences and illustrations of morphological characters among members of the Korean Tachinus species are presented. [Taxonomy, Coleoptera, Staphylinidae, Tachinus, Korea].

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A Taxonomic Study of Family Dinophysiaceae Stein (Dinophysiales, Dinophyta) in Korean Coastal Waters

  • Shin, Eun-Young;Park, Jong-Gyu;Yeo, Hwan-Goo
    • Ocean and Polar Research
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    • v.26 no.4
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    • pp.655-668
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    • 2004
  • A taxonomic survey of the dinoflagellate family Dinophysiaceae Stein was conducted on 17 locations off the coast of Korea. A total of twelve species have been identified and described, of which eight species, Dinophysis dens Pavillart D. infundibulus Schiller, D. irregulare Lebour, D. lapidistrigiliformis Abe, D. mitra(Schutt) Abe vel Balech, D. parvula(Schutt) Jorgensen, D. rapa(Stein) Balech, Phalacroma sphaeroideum Schiller, are new records for Korea and six are potentially toxic.

Taxonomic notes on five species of Gracilariaceae from Hainan, China

  • Yang, Mi-Yeon;Dong, Jun-De;Kim, Myung-Sook
    • ALGAE
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    • v.27 no.3
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    • pp.175-187
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    • 2012
  • Hainan is the second largest and southernmost island of China, and it harbors many species of the family Gracilariaceae. In this study, we conducted molecular and morphological analyses of gracilarian specimens collected from Hainan Island, to clarify their taxonomic identity and phylogenetic relationships. Five species of Gracilariaceae in Hainan were determined through maximum likelihood and Bayesian analysis of rbcL sequence data. Based on the phylogenetic trees and morphology, Hainan specimens were identified as three species of Gracilaria, one species of Gracilariopsis, and one species of Hydropuntia, namely, G. salicornia, G. tenuistipitata, Gracilaria sp., Gp. bailiniae and H. edulis. This is the first report of the molecular phylogeny of Gracilariaceae on Hainan Island, and it helps to clarify the taxonomy and distribution of gracilarian species in the Asia-Pacific region.

Taxonomic Study of Amphiroa rigida Lamouroux (Rhodophyta) in Korea (한국산 홍조 몽우리두층게발에 관한 분류학적 연구)

  • Choi , Do-Sung
    • ALGAE
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    • v.22 no.3
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    • pp.159-165
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    • 2007
  • Morphological and anatomical characters of Amphiroa rigida Lamouroux were investigated with field materials and taxonomic accounts are given to the species. The species grows in the subtidal zone of Cheju island, and is characterized by semiendophytic habit in Hydrolithon onkodes. The species is well defined by about 1 cm height, loosely tufted thallus with irregular branches, two-tiered geniculum with equal length, geniculum tier connecting by oblique end walls, and conceptacles buried in cortices of intergeniculum. Korean isolates have etrasporangial, male and female conceptacles. The structure and developmental patterns of conceptacles are very similar to those shown in previous studies.

A taxonomic review of Korean Polygonatum (Ruscaceae) (한국산 둥굴레속(Polygonatum, Ruscaceae)의 분류학적 재검토)

  • Jang, Chang-Gee
    • Korean Journal of Plant Taxonomy
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    • v.32 no.4
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    • pp.417-447
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    • 2002
  • Polygonatum taxa of Korea were classified as two sections, three series and 14 species and 2 varieties and reviewed taxonomically. Among the examined taxa, endemics in Korea were recorded as two species; P. grandicaule Y. S. Kim, B. U. Oh & C. G. Jang and P. infundiflorum Y. S. Kim, B. U. Oh & C. G. Jang. The habitat of Korean unrecorded species, P. acuminatifolium Kom. and P. odoratum var. odoratum were confirmed in this study. Keys to the sections, series and species including description of each taxon were provided here.

Taxonomic study on Korean Aphyllophorales (5) - on some unrecorded genera and species -

  • Lee, Jin-Sung;Jung, Hack-Sung
    • Mycobiology
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    • v.34 no.4
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    • pp.166-175
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    • 2006
  • A total of 149 species and 209 strains of Korean Aphyllophorales in Seoul National University Fungus Collection (SFC) were analyzed by taxonomic and phylogenetic methods. Among those examined fungal specimens, 9 genera Abundisporus, Antrodiella, Cyphellopsis, Dendrothele, Dichomitus, Laxitextum, Piloderma, Skeletocutis and Tubulicrinis, and 23 species, Abundisporus fuscopurpureus, Antrodiella semisupina, Auriporia pileata, Cantharellus subalbidus, Clavulina cinerea, Cyphellopsis confusa, Dendrothele acerina, Dichomitus campestris, Haplotrichum aureum, Heterobasidion annosum, Hyphoderma argillaceum, Hyphodontia tropica, Inonotus dryophilus, Ischnoderma benzoinum, Laxitextum bicolor, Phanerochaete radicata, Phellinus lonicericala, Piloderma byssinum, Skeletocutis nivea, Tomentella terrestris, Trametes elegans, Trametes tenuis, and Tubulicrinis accedens were confirmed as new to Korea and registered here with descriptions.

First Record of Discothyrea sauteri Forel (Hymenoptera: Formicidae: Proceratiinae) from Korea (한국미기록종 Discothyrea sauteri Forel(벌목: 개미과: 배굽은침개미아과)의 보고)

  • Shin, Dong Oh;Yoon, Sun Woo;Lyu, Dong Pyeo
    • Korean journal of applied entomology
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    • v.59 no.2
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    • pp.79-81
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    • 2020
  • The species, Discothyrea sauteri Forel, 1912 (Hymenoptera: Formicidae: Proceratiinae), was documented for the first time in Korea. In this study, the morphological characteristics, representative images of this species, and a taxonomic key of the genera of the Korean Proceratiinae are provided.

Taxonomic Accounts of Jania (Rhodophyta, Corallinaceae) in Korea (한국산 홍조 산호밀과 애기산호말속 (Jania) 식물에 대한 분류학적 검토)

  • 최도성
    • Journal of Plant Biology
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    • v.36 no.2
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    • pp.151-157
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    • 1993
  • Taxonomic accounts are given to four species of Jania, Rhodophyta from Korea; J. adhaerens Lamouroux, J. nipponica (Yendo) Yendo, J. radiata (Yendo) Yendo and J. yenoshimensis (Yendo) Yendo. J. adhaerens is an epiphyte and characterized by massive tufts with decussate-dichotomous branches. J. nipponica growing on the rocks is different from other plants by erect tuft with low-angle dichotomous branches. J. radiata has a small epiphytic thallus (5 mm) and flat, flabellate-dichotomous branches. And J. yenoshimensis grows on the rocks in sublittoral regions and has compressed, fastigate, regular-dichotomous branches. This species is distinguished form others by the formation of slender moniliform branchlets. Among these, J. yenoshimensis is first reported in Korea in this study.

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Taxonomic Accounts on Four Species of Corallinaceae from Ullungdo Island, Korea (울릉도산 홍조 산호말과 식물 4종에 대한 분류학적 검토)

  • 이인규
    • Journal of Plant Biology
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    • v.37 no.4
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    • pp.453-458
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    • 1994
  • Taxonomic accounts are given to the four species of Corallinaceae, Amphiroa beauvoisii lamouroux, Jania yenoshimensis (Yendo) Yendo, Serraticardia maxima (Yendo) Silva and Corallina officinalis linnaeus, collected from Ullungdo Island, Korea. S. maxima (Y endo) Silva is introduced for the first time in Korea in this study. J. yenoshimensis (Yendo) Yendo accords well with the type speciemens but is very similar to J. arborescens in outer appearance. However it is distinguished from that in height and branching pattern. C. officinalis accords well with other plants collected from Europe and Japan except for large number of medullary cell layers.layers.

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