• Title/Summary/Keyword: Biological Resources

검색결과 3,736건 처리시간 0.028초

국내 산림식물 11종의 항산화 활성 (Antioxidant Activity of 11 Species in Korean Native Forest Plants)

  • 조명래;이종석;이사라;손연경;배창환;여주홍;이해석;마진경;이옥환;김종예
    • 한국식품영양학회지
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    • 제28권6호
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    • pp.1098-1106
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    • 2015
  • This study aimed to investigate antioxidant activities from 11 forest plants, and determine their total phenolics, flavonoids and proantocyanidins contents. In addition, the antioxidant activities were correlated with antioxidant compounds. Among the samples, Cornus officinalis, Castanea crenata, Lindera erythrocarpa, Carpinus laxiflora and Pourthiaea villosa showed significantly higher 2,2-diphenyl-1-picrylhydrazyl (DPPH) ($IC_{50}=21.12{\sim}28.93{\mu}g/mL$) and 2,2'-azino-bis(3-ethylbenzothia zoline-6-sulfonic acid) (ABTS) ($IC_{50}=28.18{\sim}52.55{\mu}g/mL$) radical scavenging ability with reducing power ($IC_{50}=59.91{\sim}93.64{\mu}g/mL$) than other plants; and C. crenata, L. erythrocarpa and Rubus coreanus showed strong nitric oxide (NO) inhibition activity (${\geq}60%$). In addition, L. erythrocarpa, C. laxiflora and P. villosa showed higher oxygen radical absorbance capacity (ORAC) values (${\geq}1,100{\mu}M$ TE/g sample) than other samples. High total phenolic contents were observed in C. crenata (429.11 mg GAE/g), L. erythrocarpa (437.11 mg GAE/g), C. laxiflora (408.67 mg GAE/g) and P. villosa (404.11 mg GAE/g). The DPPH and ABTS radical scavenging activity with reducing power were significantly correlated with total phenolic contents ($R^2=0.71{\sim}0.79$), but total phenolic contents were not correlated with NO inhibition and ORAC ($R^2=0.35{\sim}0.43$). Therefore, these results suggested that C. officinalis, C. crenata, L. erythrocarpa, C. laxiflora and P. villosa are potential natural antioxidative candidate ingredients.

백령도 지역의 관속식물상 (A Floristic Study of Baengnyeongdo (Isl.) in Korea)

  • 김중현;남기흠;김선유;김진석;최지은;이병윤
    • 한국자원식물학회지
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    • 제26권2호
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    • pp.178-213
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    • 2013
  • 본 연구는 백령도의 관속식물을 밝히고 주요 식물들의 분포를 조사하였다. 2011년 8월부터 2012년 11월까지 총 5회에 걸쳐 수행되었다. 그 결과 관속식물은 124과 411속 647종 8아종 68변종 7품종 2교잡종으로 총 732분류군이 확인되었으며, 처음으로 밝혀진 분류군은 193분류군이었다. 이 중 환경부 지정 멸종위기야생식물은 2분류군, 한국 고유종 8분류군, 식물구계학적 특정식물 78분류군, 희귀식물 20분류군이 조사되었다. 또한 남 북방계식물 30분류군, 염생식물 43분류군이 발견되었다. 귀화식물은 92분류군으로 확인되었으며, 귀화율은 12.5%로 나타났다.

Development of microsatellite markers to assess the genetic diversity of the red-tongue viper, Gloydius ussuriensis (Reptilia: Viperidae) on the Korean Peninsula

  • Jung A Kim;Mu-Yeong Lee;Hye Sook Jeon;Min Seock Do;Kyo Soung Koo;Sang-Cheol Lee;Ji-Hwa Jung;Yoon-Jee Hong;Junghwa An
    • Journal of Species Research
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    • 제12권4호
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    • pp.281-285
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    • 2023
  • The red-tongue viper(Gloydius ussuriensis) is one of only three species of the genus Gloydius found in South Korea. Gloydius ussuriensis has a narrow activity radius and is distributed nationwide, and this species was reported to have the largest population among the Korean species in genus Gloydius. Preliminary results of a phylogenetic analysis using part of the mitochondrial DNA indicated that domestic G. ussuriensis is not comprised of monophyletic groups, and morphological analysis showed differences between domestic populations. In this study, we developed 17 microsatellites for the analysis of G. ussuriensis genetic diversity based on these characteristics. These microsatellites were developed using six multiplex panels, which could be employed to validate 80 G. ussuriensis specimens from different geographical regions in South Korea. The average number of alleles per locus was 12.2 and ranged from 4 to 25 alleles; the observed heterozygosity ranged from 0.238 to 0.950 and the expected heterozygosity ranged from 0.213 to 0.933. As a result of assessing four inland populations, a high level of genetic diversity was confirmed. These newly developed markers will be useful for further studies on the population structure and evolutionary history of the G. ussuriensis.

Biological Resources Potential and the Recent State of International Cooperation in Indonesia

  • Park, Chang-Ho;Junaedi, Ahmad;Lee, Mi-Ra;Lee, Yeon-Hee
    • Interdisciplinary Bio Central
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    • 제2권4호
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    • pp.11.1-11.8
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    • 2010
  • Indonesia is a mega-biodiversity country having at least one trillion US Dollars value of biological resources per year over the next 20 years. Indonesia is home to 11 percent of the world's flowering plant species and 12 percent of all mammals. Many of Indonesia's species and more than half of the archipelago's endemic plant species are found nowhere else on the Earth. This information is just a small portion of all higher plants and animals being found in Indonesia. Former studies described that total number of species in Indonesia is estimated more than 1,000,000 and most of them remain unknown scientifically. Most of lower plants and animals have not been studied yet, so that greatest portion of Indonesia's biological resources has never been assessed with respect to its economic value or conservation status. Many developed countries are building cooperation with Indonesia on resources, mainly in the fields of grant aid, socio-economic services, R & D, researcher exchange, technology transfer, infrastructure, education/training, finance, etc. Indonesia will obtain greater benefits and management of its biological richness via increasing its international capacity to add value and information to its biological diversity. These goals can be achieved by close international collaboration on search of important biological resources and other bioactive products that have potential economic values. Development of biological resource-based technology stands as the industry of the $21^{st}$ century and, therefore, Indonesia has a unique opportunity to lead the process in the world.

Comprehensive and synthetic inventory of Dokdo Island, Republic of Korea

  • Ui Wook Hwang;Hyun Soo Rho;Bia Park;Eun Hwa Choi;Cho Rong Shin;Sa Heung Kim;Jongrak Lee;Hack Cheul Kim;Mann Kyoon Shin;Taeseo Park;Jumin Jun;Heegab Lee;Jong Eun Lee;Yoon Sik Oh;Jung-Goo Myoung;Chang Geun Choi;Jin Hee Park;Seon-joo Park;Jimin Lee;Jaeho Lee;Hyeok Yeong Kwon;Kyu Tae Park;Chun Woo Lim;Seung Wook Jung;Mi Jin Lee;Yucheol Lee;Yeongheon Shin;Hee-Jung Choi;Young Wook Lee;Hyun Jong Kil;Jin-Han Kim;Myung-Suk Kang;Eun-Young Lee;Sang-Hwa Lee;Young Hyo Kim;Jongwoo Jung;Kuem Hee Jang;Young Jin Lim;Shi Hyun Ryu;Won-Gi Min;Joo Myun Park;Hyojin Lee;Minsu Woo;Yun-Bae Kim;Sehun Myoung
    • Journal of Species Research
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    • 제12권spc호
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    • pp.1-69
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    • 2023
  • This study aims to establish a comprehensive, synthetic inventory system for the fauna and flora of Dokdo Island, Republic of Korea, which has been conducted by a specialized research group consisting of more than 50 experts. The research was conducted over five years(2015-2019) and supported by the National Institute of Biological Resources, Ministry of Environment, Republic of Korea. All possible publications on the fauna and flora of Dokdo Island over the last 68 years from 1952 to 2020 were reviewed. As a result, 1,302 species were found on Dokdo Island during the study period. An updated list of 1,963 species was created. This is expected to be of great help for the conservation and national publicity of important indigenous biological resources of Dokdo Island.

Tripterygium wilfordii (Celastraceae): A new generic and species record for the flora of Vietnam

  • HAI, Do Van;QUANG, Bui Hong;BACH, Tran The;BINH, Tran Duc;CHOUDHARY, Ritesh Kumar;LEE, Joongku
    • 식물분류학회지
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    • 제51권3호
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    • pp.319-325
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    • 2021
  • Tripterygium wilfordii Hook.f. (Celastraceae), collected from Phia Oac-Phia Den National Park of Vietnam, is reported here as a new generic and species record for the flora of Vietnam. The genus Tripterygium differs from other genera of Celastraceae by its samara fruits, which become three-winged at maturity, and a scandent shrub. Taxonomic notes, descriptions, line drawing and photographs are provided, together with short notes on the distribution, ecology and phenology of Tripterygium wilfordii Hook.f. (Celastraceae).