• Title/Summary/Keyword: 종 동정

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Taxonomical Studies on Dinoflagellates in Masan Bay I. Genus Prorocentrum Ehrenberg (마산만 일대 와편모조류의 분류학적 연구 I. Prorocentrum 속에 대하여)

  • 유광일;이준백
    • 한국해양학회지
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    • v.21 no.1
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    • pp.46-55
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    • 1986
  • The causative organism of red tied occurred mainly in embayments along southern coast of Korea mostly composes of dinoflagellate species. Among them Genus Prorocentrum is predominant in Masan Bay and it has already reported eight Prorocentrum species from this area. The authors have identified five species of Genus Prorocentrum during the year of 1982 in the surveyed area and each species was described by means of the observation with light microscope as well as scanning electron microscopy. An additional species, p.dentatum is new to Korean waters.

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A Taxonomic Study on Genus Moina (Branchiopoda, Cladocera, Moinidae) of Korea (한국산 Moina 속 (새각 강, 지각 목, 모이나물벼룩 과) 물벼룩류의 분류학적 연구)

  • Yoon, Seong-Myeong;Kim, Won
    • Animal Systematics, Evolution and Diversity
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    • v.8 no.1
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    • pp.89-106
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    • 1992
  • The specimens belonging to genus Mina collected from various freshwater habitats at 65 localties in South Korea during the period from July 1983 to July 1991 were examined. As a result of the present study, three species were identified and one of which was newly reported from Korea. We provided a key to four species of the genus Moina occurring in Korea and described and illustrated males and ephipoidal females poorly known in Korea as well as parthenogenetic females of the three species.

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Taxonomic Review of the Genus Eupithecia (Lepidoptera : Geometridae : Larentiinae) from Korea (II) (한국산 애기물결자나방속의 분류학적 정리(II))

  • 오성환
    • Korean journal of applied entomology
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    • v.32 no.4
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    • pp.440-449
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    • 1993
  • Six species of the genus Eupithecia: E. okadai Inoue, E. scribai Prout, E. perpaupera Inoue, E. kobayashii Inoue, E. tripunctaria Herrich-Sch ffer, and E. virgaureata Doubleday are newly reported from Korea, with illustration of genitalia of both sexes. Further 5 previously known species are also included.

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Volatile Flavor Compounds Identified from the Sauces Made with Waste of Shrimp, Crab and Lobster (새우, 게 및 바다가재의 부산물로 만든 소스의 휘발성 향기 성분)

  • Lee, Kyeoung-Im;Cho, Ji-Eun;Ahn, Hung-Ki
    • Culinary science and hospitality research
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    • v.13 no.1 s.32
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    • pp.119-128
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    • 2007
  • Volatile flavor compounds of sauces made from shrimps, crabs or lobsters were analyzed by the combination of canister system, gas chromatography(GC) and mass selective detector(MSD). Of 72 total volatile compounds from 4 kinds of sauces, 45 compounds were identified from shrimp sauce(SS). Ten alkanes, 5 ketones, 3 aldehydes were obtained from SS. Especially, 3-methyl-2-butanone, 2-pentanamine, isobutane, 3-methyl-2-butanol, carbon disulfide and dimethyl sulfide were predominant compounds in SS. In crab sauce(CS), there were 18 compounds identified, including 4 alcohols, 4 alkanes, 3 aldehydes, 2 ketones, acid and amine. 2-Methoxy ethanol, trimethyloxirane and 3-buten-1-ol were special volatile compounds in CC. Volatile compounds from lobster head sauce(LHS) or lobster shell sauce(LSS) were 16 or 18 kinds respectively. The major volatile compounds of LHS were formic acid, 1-propanethiol, $\beta$-pinene and allyl sulfide, and those of LSS were acids, pentane, 3-methyl-1-butanol and 2,4-dimethyl-3-pentanone. It was thought that the volatile compounds identified from sauces as well as shrimps, crabs or lobsters might come from wine, onions, bay leaves or celery used as minor ingredients.

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16S rDNA-PCR and RFLP Analysis for rapid identification of Spoilage Bacteria from low Salt Cucumber Brine (저염 발효오이로부터 16S rDNA-PCR과 RFLP분석을 통한 부패균의 신속한 확인)

  • 김재호;장혜영
    • KSBB Journal
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    • v.19 no.1
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    • pp.72-77
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    • 2004
  • The aim of this study was to isolate and identify the spoilage bacteria in the low salt cucumber brine. The PCR amplicons comprising a portion of the 16S rRNA gene of the isolated colonies were directly sequenced and the untrimmed whole sequencing results of the unknown strains were aligned with the type strains using BLAST of NCBI. Then Sequence Aligner and Sequence Match of RDP confirmed the outcome. The identified isolates were eight species and belong to three genuses: Clostridium, Lactobacillus, and Bacillus. The RFLP pattern of the 16S rRNA gene of isolates verified the identified species. From now on the complex spoiling process of law salt fermented cucumber could be analyzed using the isolated species individually or with certain combinations.

Use of 16S-23S rRNA Intergenic Spacer Region for identification in the fish pathogenic Streptococcus iniae (16S-23S rRNA Intergenic Spacer Region을 이용한 어류 병원성Streptococcus iniae의 분자생물학적 동정)

  • Jeong, Yong-Uk;Gang, Bong-Jo;Park, Geun-Tae;Heo, Mun-Su
    • Journal of fish pathology
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    • v.17 no.2
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    • pp.91-98
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    • 2004
  • This study was performed for the identification of Streptococcus sp. from cultured flounders (Paralichthys olivaceus) showing streptococcosis in the Jeju island. We isolated 10 strains of Streptococcus iniae from the cultured olive flounders with streptococcosis. Isolated strains were identified in S. iniae since they have formed the expected band through performing PCR assay using specific primers, Sin-1 (5'-CTAGAGTACACATGTACT(AGCT)AAG-3') and Sin-2 (5'-GGATTTTCCACTCCCATTAC-3'). In addition to 16S-23S rRNA intergenic spacers (ISR), operon structure of isolated strains showed that all strains had three 16S-23S rRNA ISR band patterns. The 16S-23S rRNA ISR sequence of isolated strains showed 96% sequence identity with S. iniae (GenBank accession number AF 048773). This paper is the first report that S. iniae is associated with streptococcosis of Olive flounder in Korea.

Malacofauna of Geojedo Island, Korea (거제도 해산 연체동물상)

  • 노분조;최병래;이종락;길현종
    • Animal Systematics, Evolution and Diversity
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    • v.14 no.3
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    • pp.257-278
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    • 1998
  • 1992년 7월부터 1997년 7월까지 거제도 연안 14개 지점에서 채집된 표본들을 동정, 분류한 결과 4강 63과 149종이 밝혀졌고 이 중 한국 미기록종 1종 (Odostomia omaensis 기생이빨고둥)을 포함하여 45종 91종은 거제도 미기록종이었다. 거제도 해산 연체동물은 과거의 문헌에 기록된 것을 포함하여 다판강 5과 13종, 복족강 38과 105종, 이매패강 22종 45종, 굴족강 1과 1종으로 총 66과 164종이며 이에 대한 목록과 한국미기록종에 대한 재기재를 하였다.

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Domestic Unrecorded Species Found in the Eastern Part of Jeju Island (제주 동부지역에서 발견된 국내 미기록 자생버섯 보고)

  • Lee, Seung Hak;Ko, Pyung Yeol;Jeun, Yong Chull
    • The Korean Journal of Mycology
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    • v.46 no.2
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    • pp.105-113
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    • 2018
  • In this study, we report the occurrence of four domestic mushrooms (among 317 samples) that were previously undocumented in the eastern part of Jeju Island in Korea. To identify the mushrooms, DNA sequences of the mushrooms were analyzed by comparing them with the data available in NCBI GenBank. Mushrooms were identified as Agaricus flocculosipes, Amanita concentrica, Coprinopsis strossmayeri, and Favolus acervatus, none of which have been previously documented in Korea. Furthermore, microscopic observations revealed that the morphology of the four mushrooms was consistent with the features of the species matched by the DNA sequences analysis.

Distribution of Benthic Molluscs in Soft Bottom of the Southern Sea of Korea (남해 연성저질에 서식하는 연체동물의 분포)

  • Je, Jong-Geel;Chang, Man;Park, Heung-Sik
    • The Korean Journal of Malacology
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    • v.7 no.1
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    • pp.30-48
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    • 1991
  • 한국해역 종합 해양자원도 작성연구(남해)의 일환으로 저서생물 분포 연구를 위한 조사가 1990년 7월과 8월에 남해에 위치한 83개 조사정점에서 수행되었다. 각 정점에서 van Veen그랩으로 3회씩 채집된 저서 생물 표본 가운데 연체동물만을 선별 그들의 분포 양상을 파악하고자 종 동정과 함께 군집구조 분석을 하였다. 조사에서 채집된 연체동물은 모두 679개로 다섯개 강에 102종으로 동정되었으며, 이매패류가 출현종수(84.3%)에서나 출현개체수(92.3%)에 있어서 절대우점하였다. 전체 연체동물군집에서 우점하는 일곱 종(이매패류 여섯 종, 무판류 한 종)이 전체 출현개체수의 61.0%를 차지하였다. 남해의 연체동물은 종은 다양한 반면에 서식밀도나 생물량은 매우 빈약하였다. 출현종의 서식 유무에 따른 유사도로써 집괴분석한 결과 다섯개의 조사정점군으로 나누어지고, 이 들은 특징적인 분포 특성을 갖는 두 정점군과 혼합된 특성을 나타내는 세정점군으로 대별되었다. 전자의 두 정점군은 Raetellops Pulchella와 Periploma otohimeae로 대표되는 황해의 저층냉수의 영향을 받는 세립퇴적물 군집과 뚜렷한 대표종은 없지만 대마난류의 영향을 받는 이질성의 조립퇴넉물 군집으로 정의할 수 있었다. 대마난류의 영향을 받는 정점군의 군집은 황해저층냉수의 정점군에 비해 종 다양도는 높지만, 서식생물량은 현저히 적었다. 아울러 연체동물의 분포와 남해의 퇴적환경이나 수괴의 조성과 변화를 고려하여 남해에 서식하는 저서생물 군집에 있어서 네 개의 분포구역이 있을 것으로 추정하여 그 범위와 경계를 제안한다.

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Volatile Flavor Components in Korean Salt-Fermented Anchovy (한국산 멸치젓의 휘발성 향기성분에 관한 연구)

  • Cha, Yong-Jun
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.21 no.6
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    • pp.719-724
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    • 1992
  • Volatile components in Korean salt-fermented anchovy were analyzed by simultaneous steam distillation-solvent extraction/gas chromatography/mass spectrometry. Seventy-three volatile compounds were detected in sample. Among these, 58 compounds were positively identified and were composed mainly of aldehydes, ketones, alcohols, nitrogen-containing compounds, esters, sulfur-containing compounds, furans and miscellaneous compounds. The amounts of aldehydes was the highest in flavor compounds detected in sample and next followed by alcohols, furans, esters and ketones. In particular, the following high ratios were observed : 3-methylbutanal, 1-penten-3-ol, ehtylacetate, 2-ethylfuran.

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