• Title/Summary/Keyword: 형태동정

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Isolation and Identification of the Amylolytic Yeast Hansenula and its Haploid Mutant (전분이용성 Hansenula의 분리동정 및 변리주 개발)

  • 구영조;박완수;신동화;유태종
    • Microbiology and Biotechnology Letters
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    • v.13 no.2
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    • pp.129-135
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    • 1985
  • The amylolytic yeasts were isolated from natural sources. Among them, a strain FRI YO-32 was selected as one of the genetically potential microorganisms and was identified as a strain of Hansenula anomala var anomala. Genetic markers were introduced into the isolated haploid strains of the strain FRI YO-32 and Saccharomyces cerevisiae by conventional mutagenic procedures with EMS or MNNG.

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Direct Cannulation of a Calvarial Diploic Vein for Embolization of a Symptomatic Intraosseous Arteriovenous Fistula: A Case Report (두개관 판사이정맥의 직접 관삽입술을 통한 유증상 골내 동정맥루의 색전술: 증례 보고)

  • Jung In Jo;Chang-Woo Ryu;Hak Cheol Ko;Hee Sup Shin
    • Journal of the Korean Society of Radiology
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    • v.83 no.3
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    • pp.712-718
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    • 2022
  • Diploic arteriovenous fistulas (AVFs) or intraosseous dural AVFs are rare arteriovenous shunts. A diploic AVF is formed between a meningeal artery and an intraosseous diploic vein or the transosseous emissary vein, and the nidus is located exclusively within the bone. Currently, endovascular embolization with a transvenous approach is considered the treatment of choice for most dural AVFs. However, in the absence of an accessible venous channel, an alternate treatment approach should be considered. Herein, we report a case of a diploic AVF that was treated using embolization with transosseous direct cannulation.

Identification of Beauveria spp. Isolated from Mulberry Longicorn Beetle (Apriona germari Hope) using Polymerase Chain Reaction (뽕나무 하늘소(Apriona germari Hope)로부터 Beauveria속 사상균의 분리 및 PCR에 의한 동정)

  • 서종복;진병래
    • Journal of Sericultural and Entomological Science
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    • v.37 no.2
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    • pp.167-171
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    • 1995
  • To develope a microbial pesticide for the control of mulberry longicorn beetle, Apriona germari, Beauveria spp. were isolated from the infected Apriona germari larvae. The morphology of Beauveria spp. was observed by phase contrast and scanning electron microscope. In addition, the Beauveria spp. isolated from Apriona germari were identified by the random amplification of polymorphic DNA using polymerase chain reaction. The results showed that the Beauveria spp., SFB-1A and SFB-3A, isolated from Apriona germari were identified with B. bassiana and B. brongniartii, respectively, suggesting that the random amplification of polymorphic DNA is effective for the identification of Beauveria spp.

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Isolation and Numerical Identification of Antibiotic-Producing streptomyces sp. for Methicillin Resistant Strphylococcus aureus (메치실린 내성 포도상구균에 유효한 항생물질을 생산하는 Streptomyces sp. YSK-681의 분리 및 수리 동정)

  • 김중배;이동희;신운섭;고춘명
    • The Korean Journal of Food And Nutrition
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    • v.11 no.3
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    • pp.340-346
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    • 1998
  • The strain YSK-681 has been selected for antibiotic-producing strain against methicillin resistant Staphylococcus aureus(MRSA) form 1,000 strains of actinomycetes which had been isolated from soil. The strain YSK-681 has been identified on the point of morphological, cultural, physiological and chemical characteristics. Forty-one taxonomic unit characters were tested and the data were analysed numerically using the TAXON program. The isolate was classified into the major cluster 29 of Streptomyces and best-matched to Streptomyces lydicus. Therefore, it was concluded that the isolate was identified to be Streptomyces lydicus.

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Identification of Orchid Mycorrhizal Fungi Isolated from Terrestrial Orchids in Mt. Hambaek, Korea (함백산의 난초과 식물의 뿌리에서 난균근균의 분리 및 동정)

  • Lee, Bong-Hyung;Han, Han-Kyeol;Eom, Ahn-Heum
    • The Korean Journal of Mycology
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    • v.43 no.2
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    • pp.129-132
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    • 2015
  • In this study, orchid mycorrhizal fungi (OMF) were isolated from four terrestrial orchids on Mt. Hambeak, Platnathera chlorantha, Platnathera mandarinorum, Cephalanthera falcate, and Cephalanthera longibracteata. OMF were identified using morphological and sequences analysis of fungal internal transcribed spacer (ITS) regions by specific primer of basidiomycetous orchid mycorrhizas; ITS1-OF and ITS4-OF. Four species of orchid mycorrhizal fungi were identified as Ceratobasidium sp, Epulorhiza anaticula, Tulasnella calospora and Tulasnella sp.

Physiological Characteristics of Actinomycetes Isolated in the Upland Soils (밭 토양에서 분리한 방선균의 생리적 특성)

  • Park, Kyoung-Soo
    • Korean Journal of Soil Science and Fertilizer
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    • v.25 no.4
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    • pp.394-400
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    • 1992
  • In the isolated 280 Actinomycetes strains, 12 groups of Streptomyces were 87.2% and 3groups of Non-Streptomyces were 12.8%, respectively. Streptomyces with sporophore of the spiral chain form reached to 80% of all the Streptomyces isolates. Surface morphology of spores have been determined with the electron microscope ; two groups have a spiny surface, 10 groups have a smooth surface. Isolated Actinomyceles groups were indentified as Streptomycetes groups and Non-Streptomyces groups. Actinomycetes isolates were selected as the strains having predominant antibacterial activities against the microorganisms among the 15 groups which has antibacterial activities. Selected Actinomycetes isolates showed high antibiotic sensitivity of S-9 strain(8.46 r/ml), S-6 strain(6.23 r/ml), S-2 strain(7.24 r/ml) against Pseudomonas aeruginosa (ATCC 27857), Escherichia coli (ATCC 25922) and Staphylococcus aureus(ATCC 6538).

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Identification and Characteristics of a Purple, Non-Sulfur Bacterium Rhodobacter sp. EGH-24 from Korea Coast

  • 김기한;차미선;이나은;이정은;이상준;박재림
    • Proceedings of the Korean Environmental Sciences Society Conference
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    • 2003.11b
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    • pp.233-235
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    • 2003
  • 한국 서해안과 남해안 47개소의 해수와 mud 시료로부터 광합성세균으로 유추되는 13개의 균주를 분리하였고, agar-shake tube method와 RAPD-PCR을 이용하여 4개 서로 다른 균주를 순수분리 하였다. 4개의 균주 중 폐수분해능이 가장 뛰어난 균을 선정하여, 형태학적, 배양적, 생화학적 특성 및 16S rRNA sequencing에 의한 동정결과 purple, sulfur bacteria 쪽에 가까웠으나 형태학적, 배양학적, 생화학적 특성이 purple, non-sulfur bacteria의 Rhodobacter 속에 가장 근접하여, Rhodobacter sp. EGH-24로 명명하였다.

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한국산 다슬기과 담수패류 분포

  • 이준상
    • Proceedings of the Korean Society of Fisheries Technology Conference
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    • 2003.05a
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    • pp.378-379
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    • 2003
  • v. Martens(1905)은 국내 다슬기과 담수패류를 모두 1속 15종 및 3아종으로 기록하였다. 그 후 많은 학자들에 의하여 형태 및 분류에 대한 연구를 시도하여 근래에 이르러 한국산 다슬기과 담수패류는 3속 7종 및 1아종(Choi &. Yoon, 1997), 3속 6종 및 1아종(Kwon et al, 2001)으로 정리하고 있다. 다슬기과 패류는 서식지에 따른 형태 변이가 매우 심하고, 또한 v.Martens(1905)에 의하여 발표된 18종의 동종이명 정리에 대한 국내외 학자간의 견해 차이가 정리되어 있지 않아 현재까지도 정확한 종 동정과 분류가 난해한 분류군인다. (중략)

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A Taxonmical Study on The Family of Longidoridae(Nematoda) in Korea. 1. There Unrecorded Species of Longidoridae (한국에 있어서 Longidoridae과 선충의 분류학적 연구 1.한국산 Longidoridae과의 3 미기록종에 관하여)

  • 최영연;문일성
    • Korean journal of applied entomology
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    • v.27 no.3
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    • pp.165-170
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    • 1988
  • Taxonomical study on the Longidoridae from korea were undertaken at Kyungsangbuk-do. Three species belomging to two Longidoridae were identified. Xiphinema zulu, X. setatiae and Longidoridae sylphus were newly reported from Korea.

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