• 제목/요약/키워드: Genus identification

검색결과 565건 처리시간 0.035초

A Newly Recorded Sea Cucumber of the Genus Psolus (Holothuroidea: Dendrochirotida: Psolidae) from the East Sea of Korea

  • Lee, Taekjun;Shin, Sook
    • Animal Systematics, Evolution and Diversity
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    • 제33권3호
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    • pp.195-199
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    • 2017
  • A sea cucumber was collected from Gonghyeonjin in the East Sea of Korea at a depth of 50 m on 22 June 2011 and was identified as Psolus phantapus (Strussenfelt, 1765). This species belongs to the family Psolidae of the order Dendrochirotida based on morphological characteristics and mitochondrial cytochrome c oxidase subunit I sequence analysis. Psolus phantapus, which widely distributes in the Arctic and North Atlantic Oceans, is newly recorded in the Korean fauna. Two Psolus species including the previously reported P. squamatus are recorded in the East Sea of Korea.

A Newly Recorded Basket Star of Genus Gorgonocephalus (Ophiuroidea: Euryalida: Gorgonocephalidae) from Korea

  • Kim, Donghwan;Shin, Sook
    • 환경생물
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    • 제33권2호
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    • pp.205-208
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    • 2015
  • Some euryalid specimens were collected with fishing nets from Mipo, Gyungsangnamdo and Aewol, Jejudo Island, Korea. They were identified as Gorgonocephalus eucnemis (${M\ddot{u}ller}$ & Troschel, 1842), belonging to family Gorgonocephalidae of order Euryalida, which was new to the Korean fauna. Their molecular analyses were done with newly intended COI primers of mitochondrial cytochrome oxidase I (COI) gene for the accurate molecular identification. The Korean G. eucnemis was coincident with this NCBI species as a result of Blast analysis, which showed the 99% similarity. In the current study, three Gorgonocephalus species have been reported from Korea.

New Record of Arctoseius cetratus (Sellnick, 1940) (Mesostigmata: Ascidae) Phoretic to Sciarid Fly from Mushroom Culture in Korea

  • Keum, Eunsun;Kang, Mingu;Jung, Chuleui
    • 환경생물
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    • 제33권2호
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    • pp.209-214
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    • 2015
  • The Mesostigmata is an order of Subclass Acari either parasiting to diverse invertebrates or free-living predatory in terrestrial ecosystem. Phoresy is one of the unique behaviors of wingless arthropod dispersal by attaching winged arthropods. We collected mites attached on the dorsal part of abdomen adult sciarid fly, from mushroom culture. The mites were identified as Arctoseius cetratus Sellnick, 1940 in the family of Ascidae. Arctoseius cetratus has short J2, Z1, Z2, and S1, S2 setae, not reaching the bases of following setae. Posterior half of dorsal shield with longitudinal garland of puncta between J and Z setae, peritremes extending anteriorly to midlevel of coxaII. The genus Arctoseius and species Arctoseius cetratus are the first record in Korea. We provided the detail description of the species including the identification key in the family with some ecological notes.

Phylogenetic relationships of Rosenvingea (Scytosiphonaceae, Phaeophyceae) from Vietnam based on cox3 and psaA sequences

  • Lee, Kyung Min;Hong, Dang Diem;Boo, Sung Min
    • ALGAE
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    • 제29권4호
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    • pp.289-297
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    • 2014
  • The taxonomic status and the distribution of Rosenvingea species need attention because of the difficulties in morphological identification in the laboratory as well as in the field. We analyzed mitochondrial cox3 and plastid psaA gene sequences from Rosenvingea species from Vietnam, Mexico and Panama in combination with morphological examinations. Our results confirmed the occurrence of R. intricata and R. orientalis in Vietnam. R. intricata formed dense decumbent mats with many flat branches, often inter-adhesive, and was up to 5 cm in diameter. R. orientalis thalli were up to 18 cm long with narrow (less than 2 mm in width) tubular to compressed fronds. Both cox3 and psaA phylogenies revealed the non-monophyly of the genus Rosenvingea, as reported previously for other scytosiphonacean genera.

Specific Detection of Vairimorpha spp. in Lepidoptera by Multiplex Polymerase Chain Reaction

  • Choi, Ji-Young;Je, Yeon-Ho;Kim, Jong-Gill;Choi, Young-Cheol;Kim, Won-Tae;Kim, Keun-Young
    • 한국잠사학회:학술대회논문집
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    • 한국잠사학회 2003년도 International Symposium of Silkworm/Insect Biotechnology and Annual Meeting of Korea Society of Sericultural Science
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    • pp.138-140
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    • 2003
  • We report the development of a multiplex PCR-based procedure for rapid, sensitive, and specific detection of entomopathgenic microspordia and differentiation of the genus Nosema and Vairimorpha and identification of the vairimorpha necatrix. (omitted)

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비피더스 연구동향 (Research Trends in Bifidobacterium)

  • 박명수;지근억
    • KSBB Journal
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    • 제25권4호
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    • pp.319-329
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    • 2010
  • Bifidobacteria comprises up to 25% of the cultivable fecal bacteria in adults and 80% in infants. Many in vivo and clinical research results supporting its efficacy in the prevention and improvement of gastrointestinal health have been accumulated. As a consequence, expert committee WHO/FAO expert committee recommended Bifidobacterium as representative probiotics together with Lactobacillus acidophilus. In this review, research trends in bifidobacteria concerning the classification and identification of the genus Bifidobacterium, modulation of intestinal microflora, improvement of constipation, prevention of diarrhea, alleviation of atopy and allergy, barrier function through antimicrobial activity andimmune enhancement of the host will be introduced. Several gene expression systems based on bifidobacterial plasmids have been developed and successfully used to express several heterologous genes including anticancer proteins in Bifidogacterium. In animal test, bifidobacteria was proven to be a promising candidate for safe gene delivery system which can specifically colonize in the solid tumor.

A Report on Five New Records of Nudibranch Molluscs from Korea

  • Jung, Daewui;Lee, Jongrak;Kim, Chang-Bae
    • Animal Systematics, Evolution and Diversity
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    • 제30권2호
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    • pp.124-131
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    • 2014
  • The Korean nudibranch faunal study has been conducted since 2011 and five species including Dermatobranchus otome Baba, 1992, Mexichromis festiva (Angas, 1864), Noumea nivalis Baba, 1937, Hoplodoris armata (Baba, 1993), and Okenia hiroi (Baba, 1938) were newly reported with re-descriptions and figures. Also, Noumea purpurea Baba, 1949 was re-described with illustrations because previous records for this species were given without a description. Two congeneric species in the genus Noumea could be distinguished by ground color, dorsal markings, color of the mantle edge and gills, and mantle and dorsal marking. In addition, mitochondrial cytochrome c oxidase subunit I (COI) sequences of five species were provided for further molecular identification study. Consequently, a total of 43 species have been reported for the Korean nudibranch fauna.

탄화수소를 자화하는 Pseudomonas의 분리동정 (Isolation and Identification of Pseudomonas Utilizing Hydrocarbon)

  • 김정국;이영록
    • 미생물학회지
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    • 제22권1호
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    • pp.29-34
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    • 1984
  • 서울 근교에서 채취한 河川水 및 土壤標品으로부터 238菌株의 탄화수소자화세균을 分離하였다. 分離된 菌株중 68菌株는 Pseudomonas屬으로 同定되었고, 11菌株는 Alcaligenes屬으로, 10菌株는 Acinetobacter屬으로 同定되었다. 68菌株의 Pseudomona중, 35菌株는 P. aeruginosa, 5菌株는 P. fluorescence, 10菌株는 P. putida, 그리고 2菌株는 P. mendocina로 각각 同定되었다.

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New Limoniinae crane flies (Diptera: Limoniidae) of Korea

  • Podenas, Sigitas;Byun, Hye-Woo
    • Journal of Species Research
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    • 제3권2호
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    • pp.167-182
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    • 2014
  • Korean species of Achyrolimonia, Dicranoptycha and Helius crane flies (Diptera: Limoniidae) are taxonomically revised. Identification keys, redescriptions and illustrations of all species and both sexes, if they were found in Korea, are presented. Genus Achyrolimonia is new record for the Korean peninsula, genera Dicranoptycha and Helius are new records for South Korea, species Helius (Helius) obliteratus (Alexander, 1920) is new record for the Korean peninsula and new record for the continent. Illustrations of females of D. diacantha Alexander, 1938 and H. gracillimus Alexander, 1938 are provided and female of D. prolongata Alexander, 1938 is described and illustrated for the first time.