• 제목/요약/키워드: Cultural and morphological characteristics

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Classification of Protected Flora through Delphi Method (전문가 델파이 조사를 통한 천연기념물 식물 유형 개발)

  • Son, Ji Won;Shin, Jin Ho;Lee, Jae Jin;Kim, Do Hee
    • Korean Journal of Heritage: History & Science
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    • v.49 no.4
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    • pp.218-227
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    • 2016
  • Protected Flora are natural heritage that involve a wide variety of valuable natural values and cultural values. Over time, "Cultural Properties Preservation Law" has been changing the definition and the criteria of Protected Flora. In addition to the academic value and the rarity of the plant, historical, ethnic and landscape values have become increasingly important. For that reason the declaration and management processes of the Protected Flora need to be improved. However, the current statute has focused on the morphological characteristics of the plants which have a limit to encompass various values of the plant. It also does not correspond to the definition of Protected Flora and its declaration criteria stated on the "Cultural Properties Preservation Law." For this reason, the main purpose of this study is to develop new types of Protected Flora so that various Protected Flora can be discovered in the future.

On the Identification of Strains and the Cultural Characteristics of Flammulina velutipes in Korea (한국산 팽나무 버섯의 계통류별과 그 배양적 특성에 관한 연구)

  • 윤정구
    • Korean Journal of Microbiology
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    • v.12 no.4
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    • pp.159-179
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    • 1974
  • In order to investigate morphological and cultural characteristics of strains in species, Flammulina velutipes, the author collected isolates of Flammultina velutipes at 49 locations in Korea and cultivated these isolates on the various kinds of solid media. After investigating the cultural characteristics, appeared on the various media, he obtained the following results : 1. The variation of colors in the fruit bodies is connected with the variation of climatic environments(composite effects between mean temperature in January and number of rain days of 1mm and over precipitation). The author, therfore, can find out the trend that brown type is distributed in the midland climatic region and yellow type in the southern climatic regoin. 2. Two types can be classified into several strains respectively : the strain of abundant or insufficient productivity, and strain of selectivity or non-selectivity of media. 3. According to the results of mutual comparison of soluble mycelial proteins by disc electrophoresis using polyacrylamide gels, each type has special common protein fractions(brown type : band located at 26..5mm position from surface of gel, yellow type : band located at 24.5mm position from surface of gel), and each strain has special protein fractions too. Therefore this phenomenon seems to support the results obtained by the above-stated morphological and cultural studies. 4. In the adaptability of strains to the temperature, every strain has the nature of growing in lower temperature(the optimum temperature of 20.deg.C to 25.deg.C) except that YI-1 strain has the optimum temperatue of $25^{\circ}C$-26^{\circ}C. And mycelial growth of every strain is discontinued at $35^{\circ}C.$ 5. In the adaptability of strains to the H-ion concentration, every strain has wide adaptable range of H-ion concentration, and has optimum range of pH 5.5 to 6.6 in mycelial growth excepting YA01, BI-2 and YI-1. 6. In the utility of carbon sources, the mycelial growth of every strain is very poor on the media containing xylose(average diameter of mycelial growth : 18mm), and most strains utilize favorably sucrose(39mm), maltose(37mm) and dextrose(35mm) in mycelial growth. In the utility of nitrogen sources, every strain utilizes favorably organic nitrogens(36 mm)more than inorganic nitrogens (25 mm), and utilizes fully peptone nad asparagine in organic nitrogens. Especially BA-1, BIK-2 and YA-1 strains grow vigorously on each media containing various carbon and nitrogen sources. 7. The characteristic tests of the number of days required for mycelial growth, the number of days requried for sprout of young bodies, the length of stipe and the number of fruit bodies formation seem to be useful methods in the early selection of the strain of the abundant productivity.

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Molecular and Morphological Characterization of a Taxol-Producing Endophytic Fungus, Gliocladium sp., from Taxus baccata

  • Sreekanth, D.;Sushim, G.K.;Syed, A.;Khan, B.M.;Ahmad, A.
    • Mycobiology
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    • v.39 no.3
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    • pp.151-157
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    • 2011
  • The endophytic fungal populations of different tissues of Taxus baccata grown at high altitudes in West Bengal, India were explored. These isolated fungal populations represented different genera, which were screened for taxol production using immunoassay technique. The culture AAT-TS-$4_1$ that produced taxol was identified as Gliocladium sp. based on its cultural, morphological characteristics, internal transcribed spacer, and 18S rRNA sequence analysis. Kinetics of taxol production as a function of culture growth were investigated.

Phylogenetic Placement and Morphological Characterization of Sclerotium rolfsii (Teleomorph: Athelia rolfsii) Associated with Blight Disease of Ipomoea batatas in Korea

  • Paul, Narayan Chandra;Hwang, Eom-Ji;Nam, Sang-Sik;Lee, Hyeong-Un;Lee, Joon-Seol;Yu, Gyeong-Dan;Kang, Yong-Gu;Lee, Kyeong-Bo;Go, San;Yang, Jung-Wook
    • Mycobiology
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    • v.45 no.3
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    • pp.129-138
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    • 2017
  • In this study, we aimed to characterize fungal samples from necrotic lesions on collar regions observed in different sweetpotato growing regions during 2015 and 2016 in Korea. Sclerotia appeared on the root zone soil surface, and white dense mycelia were observed. At the later stages of infection, mother roots quickly rotted, and large areas of the plants were destroyed. The disease occurrence was monitored at 45 and 84 farms, and 11.8% and 6.8% of the land areas were found to be infected in 2015 and 2016, respectively. Fungi were isolated from disease samples, and 36 strains were preserved. Based on the cultural and morphological characteristics of colonies, the isolates resembled the reference strain of Sclerotium rolfsii. Representative strains were identified as S. rolfsii (teleomorph: Athelia rolfsii) based on phylogenetic analysis of the internal transcribed spacer and large subunit genes along with morphological observations. To test the pathogenicity, sweetpotato storage roots were inoculated with different S. rolfsii strains. 'Yulmi' variety displayed the highest disease incidence, whereas 'Pungwonmi' resulted in the least. These findings suggested that morphological characteristics and molecular phylogenetic analysis were useful for identification of S. rolfsii.

Isolation and Characterization of a Chitinolytic Enzyme Producing Marine Bacterium, Aeromonas sp. J-5003

  • Choi Yong Un;Kang Ji Hee;Lee Myung Suk;Lee Won Jae
    • Fisheries and Aquatic Sciences
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    • v.6 no.1
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    • pp.1-6
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    • 2003
  • A chitinolytic enzyme-producing bacterium was isolated from sea water on the coast of Busan. The bacterium was identified as Aeromonas sp. based on its morphological, cultural and biochemical characteristics and designated Aeromonas sp. J-5003. The strain produced two chitinoloytic enzymes: chitinase and chitobiase. The optimum culture conditions of the strain for production of chitinoloytic enzymes were investigated. For the production of chitinase, the major components of medium were colloidal chitin $0.5\%$, glucose $0.2\%$, yeast extract $0.25\%$ and peptone $0.25\%$ while for the production of chitobiase, they were colloidal chitin $0.5\%$, galactose and tryptone $0.2\%$. The optimum cultural temperature and initial pH for the production of chitinase and chitobiase were $30^{\circ}C$ and pH 7.0, respectively.

Characteristics of Korean Popular Music Festival Fashions According to Popular Music Genres and their Relevance to Music -Focusing on the Years 2019, 2022, and 2023- (대중음악 장르에 따른 국내 대중음악 페스티벌 패션의 특성과 음악과의 연관성 -2019, 2022, 2023년도를 중심으로-)

  • Hye-Won Lee
    • Journal of the Korean Society of Clothing and Textiles
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    • v.48 no.2
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    • pp.211-232
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    • 2024
  • This study examines the morphological and expressive aspects of fashion and its connection to music at Korean music festivals. The research involves a theoretical review and a case study analyzing fashion and music at rock, EDM, hip-hop, and jazz festivals in Korea from 2019 to 2023. The process of selecting fashion cases was reviewed by experts in the field of fashion, and expert focus group interviews were used. The study found that while fashion and music differ in terms of their fundamental morphological components of sensory media, they share features in terms of sensory harmony between their components. In terms of expressive aspects of fashion, it was found that the subject and object of expression are the same for the artist and for the audience. Both music and fashion have sensory transmission and communication between the subject and the audience, and both transmit personal and social meaning. Using these commonalities as indicators of relevance, a relevance evaluation was conducted. As a result of the evaluation, popular music festival fashion and music were interpreted as having a high degree of relevance in terms of expressing emotions and tastes, providing a sense of belonging to a community, and conveying cultural meaning.

Studies on the Morphology and the Mycelial Cultivation of Poria cocos (Fr.) Wolf. (복령(茯笭)의 형태(形態) 및 균사배양(菌絲培養)에 관한 연구(硏究))

  • Hong, In-Pyo;Lee, Min-Woong;Kim, Kwang-Po;Lee, Sang-Sun
    • The Korean Journal of Mycology
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    • v.19 no.1
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    • pp.54-60
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    • 1991
  • In the traditional medicine, the basidiocarps of Poria cocos (Fr.) Wolf naturally collec­ted have been widely used as a traditional remedy for dropsy, diarrhea, gonorrhea and nervous disease more than 3500 years ago. It was recently found to be composed of the particular compounds having antitumor effects. Therefore, its demand has been gradually increased, whereas it is still dependent upon the natural harvest. The artificial cultivation of P. cocos was carried out to observe the morphological characteristics and to investigate the cultural characteristics of P. cocos isolates collected. The morphological characteristics of its basidiocarps was observed. The physiological aspects of its isolates were also investigated.

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Identification and Pathogenicity of Rhizoctonia species Isolated from Turfgrasses (잔디에서 분리한 Rhizoctonia spp.의 동정과 병원성)

  • Lee, Du-Hyung;Choe, Yang-Yun;Lee, Jae-Hong;Kim, Jin-Won
    • The Korean Journal of Mycology
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    • v.23 no.3 s.74
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    • pp.257-265
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    • 1995
  • Morphological characteristics and pathogenicity of Rhizoctonia species causing blight diseases of turfgrasses were studied. The species were identified as Rhizoctonia cerealis Van der Hoeven, R. oryzae Ryker et Gooch, and R. solani $K{\ddot{u}hn}$ based on their morphological and cultural characteristics. Isolates of R. solani were assigned to anastomosis groups (AG) with cultural type 1 (1A), 2-2 (IIIB), and 2-2 (IV). R. cerealis, R. oryzae and R. solani induced sheath rot and foliar blight symptoms on creeping bentgrass (Agrostis palustris) and zoysiagrass (Zoysia japonica). Inoculation tests showed that disease severity with isolates of R. cerealis and R. oryzae were more serious to creeping bentgrass than zoysiagrass. AG 1(1A) isolates of R. solani were strongly pathogenic on creeping bentgrass, but moderate to zoysiagrass. AG 2-2 (III) isolates were moderately pathogenic to zoysiagrass, but weakly to creeping bentgrass. AG 2-2 (IV) isolates from zoysiagrass were moderately pathogenic to zoysiagrass, but weakly to creeping bentgrass.

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Molecular Phylogeny and Morphology of Tolypocladium globosum sp. nov. Isolated from Soil in Korea

  • Kallol Das;Jung-Joo Ryu;Soo-Min Hong;Seong-Keun Lim;Seung-Yeol Lee;Hee-Young Jung
    • Mycobiology
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    • v.51 no.2
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    • pp.79-86
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    • 2023
  • In this study, fungal strains designated as KNUF-22-14A and KNUF-22-15A were isolated from soil samples in Korea. These two strains were identified based on cultural and morphological characteristics as well as phylogenetic analyses and were found to be morphologically and phylogenetically identical. Upon their morphological comparison with closely related species, such as Tolypocladium album, T. amazonense, T. endophyticum, T. pustulatum, and T. tropicale, a difference in the size of short phialides [0.6-2.4(-9.3)×0.8-1.4 ㎛] was observed. Meanwhile, these strains had larger conidia (1.2-3.0×1.2-3.0 ㎛) than T. album, T. amazonense, T. endophyticum, and T. tropicale and smaller conidia than T. pustulatum. Phylogenetic analyses using a multi-locus datasets based on ITS, LSU, and SSU showed that KNUF-22-14A and KNUF-22-15A formed a distinct cluster from previously identified Tolypocladium species. Thus, these fungal strains isolated from soil in Korea are proposed as a novel species according to their characteristics and are named Tolypocladium globosum sp. nov.

A new record of Scleroconidioma sphagnicola isolated from soil in Korea

  • Ayim, Benjamin Yaw;Sung, Gihwan;Kang, In-Kyu;Lee, Seung-Yeol;Jung, Hee-Young
    • The Korean Journal of Mycology
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    • v.47 no.2
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    • pp.125-130
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    • 2019
  • A fungal isolate, designated KNU-JJ-1824, was isolated from a soil sample collected from a field on Jeju, Korea. Colonies of the isolates cultured on PDA, MEA and CMAD for 14 days grew to diameters of 49~51 mm, 60~63 mm, and 47~50 mm, respectively. The colonies of this fungal isolate were dark green in color on both sides, and had irregular margins on the PDA media. Mycelia submerged and exhibited clear lines from the center to the edge on MEA media. On CMAD media, they were dark brown to greenish-brown, with narrow white margins. The shape of the conidia was guttulate, fusiform or clavate, and $1.9{\sim}3.4{\times}6.5{\sim}10.2{\mu}m$ in size. A molecular phylogenetic tree was constructed using dataset from small subunit (SSU) rDNA and the internal transcribed spacer (ITS) regions, and the isolate was found to cluster with Scleroconidioma sphagnicola UAMH 9731. Based on the results of the phylogenetic tree analysis and the cultural and morphological characteristics, the isolate was identified as Scleroconidioma sphagnicola. We report S. sphagnicola for the first time in Korea.