• 제목/요약/키워드: species collection

검색결과 552건 처리시간 0.026초

Instability in in vitro fruiting of Cordyceps militaris (L.) Link

  • Shrestha, Bhushan;Hong, Seok-Un;Han, Sang-Kuk;Kim, Ho-Kyung;Sung, Jae-Mo
    • 한국생물공학회:학술대회논문집
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    • 한국생물공학회 2001년도 추계학술발표대회
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    • pp.359-362
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    • 2001
  • Traditionally, Cordyceps species have been used as a part of herbal medicine in Oriental countries, including Korea a for intemal health, vigorosity and to cure different diseases related to heart, lung etc. In the recent years, research on artificial fruiting of different Cordyceps species including C. militaris has been carried out in the world because of their medicinal value. Variationas well as instability occur during artificial fruiting. Instability observed in the in vitro fruiting of C. militaris is reported in the present study.

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Mycoflora of Soybeans Used for Meju Fermentation

  • Kim, Dae-Ho;Kim, Seon-Hwa;Kwon, Soon-Wo;Lee, Jong-Kyu;Hong, Seung-Beom
    • Mycobiology
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    • 제41권2호
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    • pp.100-107
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    • 2013
  • Diverse fungi are present in Korean traditional meju and they are known to play an important role in fermented soybean products. To determine the origin of the fungi in meju, we examined the mycoflora of soybeans from 10 traditional meju factories. The samples were untreated or treated with sodium hypochlorite, and placed on malt extract agar (MEA), dichloran 18% glycerol agar (DG18), and dichloran rose bengal chloramphenicol agar (DRBC) medium. A total of 794 fungal strains were isolated and they were identified as 41 genera and 86 species. From sodium hypochlorite untreated soybeans, the genera, Cladosporium (55%), Eurotium (51%), Fusarium (33%), Penicillium (22%), and Aspergillus (exclusion of Eurotium) (20%), were mainly isolated, and Eurotium herbariorum (22%), Eurotium repens (18%), Cladosporium tenuissimum (18%), F. fujikuroi (18%), Aspergillus oryzae/flavus (7%), and Penicillium steckii (6%) were the predominant species. In case of sodium hypochloritetreated soybeans, Eurotium (31%) and Cladosporium (5%) were frequently isolated, but Aspergillus (excluding Eurotium), Penicillium and Fusarium which were frequently isolated from untreated soybeans, were rarely isolated. Eurotium herbariorum (21%), Eurotium repens (8%), and Cladosporium tenuissimum (3%) were the predominant species. Of the 41 genera and 86 species isolated from soybeans, 13 genera and 33 species were also found in meju. These results suggest that the fungi on soybeans may influence the mycoflora of meju.

해양 생태계 부착 미세조류 채집을 위한 소재 비교 연구 (Comparison of Materials for Collection of Adhesive Microalgae in Marine Ecosystems)

  • 박재영;기장서
    • Ocean and Polar Research
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    • 제45권1호
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    • pp.1-9
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    • 2023
  • Marine microalgae have different collection methods depending on their habitat. In the case of adhesive microalgae, it is difficult to separate organisms from the substrate surface, and contamination is likely to occur during the sampling process. In this study, we analyzed the collection efficiency of adhesive microalgae using three artificial fiber materials (nylon, blend fabric, and viscose rayon). Each fiber showed different fiber diameter and pore characteristics (nylon 26.09 ㎛, blend fabric 56.6 ㎛, viscose rayon 101.3 ㎛). In addition, attached organisms were collected on the surface of artificial substrates at Bukseong Port in Incheon using each tested fiber material. After that, we investigated the population and species composition. The highest number of cells was found in nylon, which was 8 times higher than in the least collected viscose rayon material. In addition, we identified 24 microalgal species from the substrate, demonstrating that the species composition differed from that of surface water. The number of collected microalgae species varied depending on the fiber materials, with nylon containing all the adhesive microalgae. In contrast, only a few microalgae were observed in other fibers. These results suggest that, of the tested fibers, nylon material may be suitable for collecting adhesive microalgae. As a result, this study may be useful for future research on adhesive microalgae.

An inventory of Korean living collections in the Arnold Arboretum of Harvard University, USA

  • Lee, Sang Jun;Kim, Jung-Hyun;Nam, Gi-Heum;Kim, Min-Ha;Lim, Chae Eun
    • Journal of Species Research
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    • 제3권2호
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    • pp.183-194
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    • 2014
  • As part of a study to understand the current status of Korean plant species propagated in foreign countries, we conducted extensive surveys on Korean living collections in the Arnold Arboretum of Harvard University, the oldest public arboretum in North America. Specifically, we collected and identified the voucher specimens of the living collections and further examined the collection databases to understand the history of how Korean plants were introduced to the Arboretum. We found that a total of 154 Korean taxa (belonging to 49 families and 81 genera) have been planted in the arboretum. Most plants originated from seeds that were directly collected in Korea or obtained via seed exchanges with botanical gardens in Asia, Europe, and U.S.A. Of the 154 taxa, 16 are Korean endemic species, and three are listed as endangered species. In addition, 62 taxa are as floristic regional indicator species of Korea used by the Ministry of Environment.

Taxonomical Characteristics of Xylaria spp. Collected from Malaysia

  • Lee, Yang-Soo;Han, Sang-Sub;Jeong, In-Soo
    • Mycobiology
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    • 제30권4호
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    • pp.193-196
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    • 2002
  • Five species of the genus Xylaria are recognized on Malaysia materials: X. hypoxylon(L. FR.) Grev, X. allantoidea(Berk.) Fr., X. cubensis(Mont.) Fr., X. curta Fr. and X. grammica(Mont.) Fr.. The collection of Xylaria allantoidea from Malaysia is compared to the collection from Taiwan in morphological characters. The species are described their the host and cultural characteristics by a bright microscope and a scanning electron microscope.

2010-2012년 어류표본사업에서 채집된 한국 남해 어류 종 목록 (Fish Species Collected by the Fish Collection Project from the Southern Sea of Korea during 2010-2012)

  • 문대연;정현경;명정구;최정화;권혁준;백진욱;홍성열;김성용
    • 한국수산과학회지
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    • 제48권4호
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    • pp.507-528
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    • 2015
  • The Fish Collection Project collected 356 fish species from the Southern Sea of Korea during 2010-2012, 55 more than previously collected. The fishes belonged to 3 classes, 29 orders and 128 families. The 5 dominant orders, Perciformes, Scorpaeniformes, Pleuronectiformes, Tetraodontiformes, and Clupeiformes, accounted for ~80% of the identified species. Additionally, 126 species were collected from the Southern Sea for the first time, while 85 species that had been found in previous collections were not seen. The species variety of fish in the Southern Sea may be influenced by its unique oceanographic conditions such as increased water temperatures in coastal areas, so regular surveys would assist our understanding of the fish community. We suggest that various collection methods, including diving, be used to collect fish species inhabiting rocky shore or deep-sea areas, where commercial fishing gear is difficult to deploy.

독도 곤충상 조사에 따른 최근 종 조성도 변화 보고 (Report on the Change of the Species Composition in Insects Inhabiting in Dokdo, Korea)

  • 강현준;홍의정;권오석
    • 생태와환경
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    • 제46권1호
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    • pp.60-66
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    • 2013
  • A two-year survey on the insect fauna of Dokdo located at the eastern end of Korean territory, was carried out from 2009 to 2010. A total of 11 Orders 65 Families 131 Genera 133 Species of insects was reported to exist in Dokdo by Park et al. (2012). This study was focused on the collection of small insects (under 1 mm in body length) in Dokdo. Form the collection, the comparison of the species composition to past records in Dokdo was carried out.