• 제목/요약/키워드: resources identification

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An updated taxonomy of the family Linderniaceae in Korea

  • Bazarragchaa, Badamtsetseg;Yang, Seungah;Kim, Hyoun Sook;Lee, Sang Jin;Lee, Joongku
    • 농업과학연구
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    • 제46권4호
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    • pp.1007-1018
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    • 2019
  • In the present study, according to morphological observations followed by recent circumscriptions, we have classified the Korean taxa of the family Linderniaceae into Scrophulariaceae sensu lato has been considered in several works, though the taxa have remained undefined because identification work was mostly done according to vegetative morphological features, such as the leaf shape, leaf margins, and leaf venation. The taxa of Linderniaceae are mostly considered to be weeds and, for correct identification, it is necessary to clarify their taxonomic characteristics. Morphological studies were carried out using samples collected in the field. Micro-morphological observations of the vegetative and floral parts were also performed using light microscopy (LM) and scanning electron microscopy (SEM). We concluded that important characteristics are reproductive morphologies viz. calyx, stamen structure, capsule shape, calyx ratio with capsule, inflorescence morphology, and seed morphology. As a result, we formulated taxa descriptions and provided a key of the genera of Linderniaceae in Korea. Lindernia crustacea (L.) F. Muell. is transferred to Torenia crustacea (L.) Cham. & Schltdl. Lindernia micrantha D. Don and L. angustifolia (Benth.) Wettstein are a synonym of Vandellia micrantha (D. Don) Eb. Fisch., Schäferh. & Kai Müll. Lindernia attenuata Muhl. and L. dubia var. major (Pursh) Pennell are a synonym of Lindernia dubia (L.). Lindernia verbenifolia (Colsm.) Pennell is a synonym of Bonnaya antipoda Druce. Our study reports the presence of four genera: Bonnaya, Lindernia, Torenia, and Vandellia, comprising six taxa under the family Linderniaceae in Korea.

일천궁과 토천궁에서 발생하는 총채벌레류의 분자동정 (Molecular Identification of Thrips in Two Medicinal Crops, Cnidium officinale Makino and Ligusticum chuanxiong Hort)

  • 정충렬;정대희;박홍우;김현준;전권석;윤정범
    • 한국약용작물학회지
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    • 제27권1호
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    • pp.17-23
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    • 2019
  • Background: Cnidium officinale Makino and Ligusticum chuanxiong Hort. are important medicinal crops in Korea. However, there is insufficient information on the identification of thrips, which attack these plants. Until now, one species of thrips has been recorded as a main pest. Methods and Results: To identify the thrips emerging in C. officinale Makino and L. chuanxiong Hort., these plants were independently cultivated in two local areas. Thirty individuals of each plant species were selected randomly and surveyed for the presence of thrips. After confirming the existence of thrips, 100 thrips individuals were collected from each crop using the beating method. To identify thrips species, we performed PCR-restriction fragment length polymorphism (RFLP)-based analysis using ITS2 primer sets. Six thrips species were identified: western flower thrips (Frankliniella occidentalis), flower thrips (F. intonsa), onion thrips (Thrips tabaci), chrysanthemum thrips (T. nigropilosus), chilli thrips (Scirtothrips dorsalis), and grass thrips (Anaphothrips obscurus). The proportion of these species differed between the host plant species. Conclusions: Six thrips species were major pests of two medicinal crops. Integrated pest management is required to control these thrips species, and will enhance the yield and quality of C. officinale and L. chuanxiong.

온라인 자료 식별체계 실태조사를 기반으로 한 납본연계방안 제안 연구 (Study on the Proposal for Deposit Linkage Plan Based on the Survey of Online Material Identification System)

  • 노영희;손애경;이경선;장인호;정영미;차현주
    • 정보관리학회지
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    • 제41권1호
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    • pp.133-162
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    • 2024
  • 디지털화가 급속히 진행됨에 따라, 온라인 자료의 식별 및 관리의 중요성이 대두되고 있다. 특히, 디지털 콘텐츠의 효율적인 유통 및 보존을 위한 체계적인 식별체계의 필요성이 증가하고 있다. 본 연구는 이러한 시대적 요구에 부응하여, 온라인 자료의 식별 및 관리를 위한 현행 식별체계의 실태를 조사하고, 이를 납본과 연계하여 보다 체계적인 관리 및 활용 방안을 모색하는 것을 목적으로 한다. 이를 위해 온라인 자료 식별체계와 발급실태를 조사하고 온라인 자료에 관련된 선행연구를 분석하였다. 분석결과를 기반으로 한 납본 연계방안은 다음과 같이 세 가지로 요약할 수 있다. 첫째, 납본의 우선순위 및 활용성을 위해 납본과 이용의 상호보완 강화, 납본의 우선순위 부여, 납본자료의 활용성 증대 전략이 요구된다. 둘째, 국제표준번호를 기반으로 한 납본 연계 방안으로서, ISBN과 UCI의 연계 납본, 국제표준자료번호와 납본 연계, 국제표준번호와 UCI의 메타데이터연계, UCI와 ICN의 연계 통합, 납본시스템 고도화를 위한 자동화 기술 도입 전략이 요구된다. 셋째, 위에서 제안한 전략들이 그 효과적으로 작용하기 위해서는 정책적인 지원도 같이 이루어져야 할 것이다. 한국서지표준센터의 납본 역할 강화를 포함하여 출판사와의 협력강화, 납본자료에 대한 보상, 납본제도에 대한 인식 제고 및 제도적 보상 등의 측면에서 고려되어야 할 부분이 있다.

한국 제주도에서 채집된 촉수과(Mullidae) 어류 1첫기록종, Upeneus subvittatus (First Record of Goatfish Upeneus subvittatus (Pisces: Mullidae) from Jeju Island, Korea)

  • 최시원;명세훈;이정훈;김정년
    • 한국수산과학회지
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    • 제57권2호
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    • pp.169-176
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    • 2024
  • On November 9, 2022, a goatfish (Mullidae) that had not been previously reported in Korea was collected during offshore fisheries resources research near Jeju Island. Based on the morphological identification, this goatfish was identified as the genus Upeneus owing to the presence of palatine teeth and vomerine teeth, as well as the proximal part of anterior part of second dorsal fin. Additionally, through molecular identification, the previously unreported goatfish was identified as U. subvittatus with a 99.8% match in the mtDNA COI region. Goatfish U. subvittatus has no patterns on its body and dark bands on both the lower and upper caudal fins, making it well distinguishable from the four species of genus Upeneus reported in Korea. U. vittatus, reported in Japan, showed morphological differences from U. subvittatus in that the dark band on the lower lobe of the caudal fin was wider, and longitudinal stripes were present on the body. Based on the morphological characteristics of U. subvittatus, we suggest a new Korean name, "Jul-mu-nui-kko-li-chog-su".

동물식별 개체이력정보 추적을 위한 RFID 검색 시스템 구현에 관한 연구 (The Study on RFID Traceability System for Animal Identification)

  • 백민호;고성석
    • 산업경영시스템학회지
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    • 제31권1호
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    • pp.116-123
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    • 2008
  • Food and Agriculture Organization (FAO) and many countries make an effort to conserve and utilization of animal genetic resources to prepare for our unpredictable future. In order to protect the customer and the producer from the animal diseases and unjust distribution, many country seek to appropriate solution. Among the solutions, RFID technology can be used as a basic technology, since this technology can be applied in the conservancy and utilization of animal genetic resources, object management for improved animal and traceability of animal's distribution flow. There are two main issues in making the efficient RFID environment. The first issue is the standardization of code system for object identification. International Organization for Standard (ISO) published the standard which regulates RFID of animal (ISO 11784 and ISO 11785). Based on these standards, many countries have tried to establish their national standard. In Korea, National Institute of Animal Science (NIAS) playa main role in establishing the standard of object identification code based on ISO 11784. Even though the standard format of object's identification is well established, the RFID system may not be operated well without the standardization of RFID network and related equipment. In Korea, National Internet Development Agency of Korea (NIDA) has proposed the RFID Network at 2006, which can be applied in the different kind of system at each phase. But, the implementation case of this RFID Network does not reported yet, since many company or agency who introduce RFID technology, implemented as an isolated individual system. In our study, we show that RFID network can be utilized for any kind of system at each phase, and propose the improvement point in order to be widely used.

미토콘드리아 12S rRNA 유전자의 종 특이적 PCR-RFLP Fingerprint를 이용한 식육 원료의 판별 (Identification of Meat Species Using Species-Specific PCR-RFLP Fingerprint of Mitochondrial 12S rRNA Gene)

  • 박종근;신기현;신성철;정구용;정의룡
    • 한국축산식품학회지
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    • 제27권2호
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    • pp.209-215
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    • 2007
  • 본 연구는 mt DNA 12S rRNA 유전자의 PCR-RFLP 분석기법을 이용하여 다양한 식육자원 및 각종 가공 육제품의 원료육에 대한 정확하고 재현성 높은 축종 및 육종 감별기술을 개발하기 위하여 수행되었다. 국내에서 유통되고 있는 9종류 축종(소, 돼지, 양, 염소, 말, 사슴, 닭, 오리 및 칠면조)의 육류로부터 12S rRNA유전자의 특정 염기서열을 포함하는 primer를 설계 제작하여 PCR-RFLP 분석을 실시하였다. 각 공시축의 근육조직으로부터 genomic DNA를 추출하고 PCR 증폭 반응을 수행한 후 얻어진 PCR 증폭산물(약 455 bp)을 Tsp5091와 MboI 제한효소로 각각 절단한 결과 Tsp5091 제한효소는 포유류 6종간에서 그리고 MboI 제한효소는 가금류 3종간에서 명확한 차이를 보이는 종 특이적인 PCR-RFLP profile을 검출하였다. 따라서 본 연구에서 개발한 12S rRNA 유전자의 종 특이적 DNA 분자표지는 각종 원료육 및 가공 육제품의 육종 및 축종 판별에 매우 유용한 동물 종 감별 DNA marker로 이용될 수 있을 것이다.

음파검층과 밀도검층 자료에서 산출된 이방성 변수를 이용한 지층 구분 (Formation Identification using Anisotropic Parameters from Sonic and Density Logs)

  • 장성형;김태연;황세호
    • 지질공학
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    • 제27권3호
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    • pp.323-330
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    • 2017
  • 지하 지층의 확인은 지표면 지질조사, 시추코어 분석, 시추코어 관찰, 물리검층 자료 분석 등의 다양한 방법을 이용한다. 이 가운데 물리검층 자료는 원위치에서 연속적으로 물성을 제공하므로 시추코어 분석 자료와 더불어 지층의 확인에 활용되고 있다. 본 연구에서는 완전파형 음파검층과 밀도검층 자료에서 이방성 변수를 구하고 이를 이용하여 지층의 구분에 적용하고자 하였다. 톰슨 이방성 변수(${\varepsilon},\;{\delta},\;{\eta}$)는 바쿠스(Backus) 평균법을 P파와 S파 속도, 밀도검층 자료에 적용하여 계산하였다. 이와 같은 방법을 캐나다 블랙풋의 물리검층 자료에 적용한 결과, 12개 구간으로 지층을 구분 할 수 있 수 있었다. 즉, 탄성파 속도 이방성을 반영하는 톰슨 이방성 값의 변화에서 지층의 구분이 가능하였고 지층 구분에 많이 이용하는 자연감마선검층 자료가 없는 경우에도 톰슨 이방성 변수를 이용하여 지층 구분이 가능함을 알 수 있었다.

Molecular Identification and Effects of Temperature on Survival and Growth of Hybrids between Haliotis gigantea Gmelin (♀) and Haliotis discus hannai Reeve (♂)

  • An, Hye Suck;Han, Jong Won;Hwang, Hyun-Ju;Jeon, Hancheol;Jung, Seung-Hyun;Jo, Seonmi;Choi, Tae-Young;Hyun, Young Se;Song, Ha Yeun;Whang, Ilson
    • 한국해양생명과학회지
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    • 제2권2호
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    • pp.83-89
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    • 2017
  • In abalones, interspecific hybridization has been suggested as a possible means to increase production and desired traits for the industry. In Korea, Haliotis gigantea is considered a species with a larger size and higher temperature tolerance than H. discus hannai. However, H. discus hannai is considered the most valuable and popular fishery resource due to its better acceptance and higher market prices. Thus, viable interspecific hybrids have been produced by artificial inseminating H. gigantea eggs with H. discus hannai sperm. However, the reciprocal hybrid cross was not successful. In this study, the hybridity and the growth and thermal tolerance performance of the interspecific hybrids were examined. A combination of various assays revealed maximum growth occurrence at 21℃ and the higher growth rate in the hybrids than that of H. discus hannai parent. In addition, the growth and survival at high-temperature (28℃) of the hybrids was equivalent to that of the highly tolerant H. gigantea parent, suggesting new possibilities to overcome the mass mortality in H. discus hannai during high temperature periods of summer season in Korea. Furthermore, the induced interspecific hybrid status was confirmed by the presence of species-specific bands for each parental species of the random amplified polymorphic DNA (RAPD) profiles using universal rice primer (URP), which could be used as speciesspecific markers to distinguish the hybrids and their parental species.