• Title/Summary/Keyword: Korean Society of Mycology

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Studies on the Components of Sarcodon aspratus(I) (능이의 성분(成分)에 관한 연구(硏究)(제1보)(第1報))

  • Park, Wan-Hee
    • The Korean Journal of Mycology
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    • v.11 no.2
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    • pp.85-89
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    • 1983
  • The aims of this study were to investigate various components and their physiological activities of Sarcodon aspratus (Berk.) S. Ito which grows wildly in Korea, belonging to the family Thelephoraceae. The analysis of the powered carpophore of this fungus by TLC and an amino acid autoanalyzer revealed that it contained twenty-one free amino acids and that twenty­two total amino acids were identified in its acid hydrolysate. These amino acids were also quantified.

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A Study on the Components of Lentinus lepideus Fr.(1) (잣버섯의 성분(成分) 연구(硏究)(I))

  • Kim, Sung-Won
    • The Korean Journal of Mycology
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    • v.7 no.1
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    • pp.9-11
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    • 1979
  • The carpophores of Lentinus lepideus Fr. which grows wildly in Korea were collected in Gyeong Gi Province to examine the chemical components of the fungus. They were extracted with a mixture of chloroform and methanol. From the extract four spots were detected by TLC. One of these spots was identified as ergosterol by TLC, GLC and chemical tests.

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Pattern of Spore Discharge Over Hymenial Surfaces (자실층표면(子實層表面)에서 포자(胞子) 이탈(離脫)양상)

  • Okhuoya, J.A.
    • The Korean Journal of Mycology
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    • v.16 no.2
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    • pp.57-59
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    • 1988
  • Considerable variations in spore productivity were detected within the area of single hymenial surfaces of certain polypores. The hymenium has in irregular patterns, areas of low as well as high spore production, common both in the periphery(young) as well as in the inner(old)part. These have been recorded as isospore diagrams showing that the basidia all over the hymenia are at different stages of development.

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Two New Species and a New Chinese Record of Hypocreaceae as Evidenced by Morphological and Molecular Data

  • Zeng, Zhao Qing;Zhuang, Wen Ying
    • Mycobiology
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    • v.47 no.3
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    • pp.280-291
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    • 2019
  • To explore species diversity of Hypocreaceae, collections from Guangdong, Hubei, and Tibet of China were examined and two new species and a new Chinese record were discovered. Morphological characteristics and DNA sequence analyses of the ITS, LSU, $EF-1{\alpha}$, and RPB2 regions support their placements in Hypocreaceae and the establishments of the new species. Hypomyces hubeiensis sp. nov. is characterized by occurrence on fruitbody of Agaricus sp., concentric rings formed on MEA medium, verticillium-like conidiophores, subulate phialides, rod-shaped to narrowly ellipsoidal conidia, and absence of chlamydospores. Trichoderma subiculoides sp. nov. is distinguished by effuse to confluent rudimentary stromata lacking of a well-developed flank and not changing color in KOH, subcylindrical asci containing eight ascospores that disarticulate into 16 dimorphic part-ascospores, verticillium-like conidiophores, subcylindrical phialides, and subellipsoidal to rod-shaped conidia. Morphological distinctions between the new species and their close relatives are discussed. Hypomyces orthosporus is found for the first time from China.

Antifungal Activity of Withametelin, a Withanolide Isolated from Datura metel

  • Singh, U.P.;Prakash, Om;Ray, A.B.
    • Mycobiology
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    • v.29 no.2
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    • pp.96-99
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    • 2001
  • Withametelin, a steroidal compound isolated from leaves of Datura metel L.(Solanaceae), showed antifungal activity against some plant pathogenic as well as saprophytic fungi tested in vitro. Except Curvularia maculans and Colletotrichum sp., spore germination of all the other 23 fungi was inhibited significantly at 125 to 1000 ppm. Out of the 25 fungi tested, Curvularia sp., Cercospora abelmoschi, Heterosporium sp., Erysiphe cichoracearum and Ustilago cynodontis were most sensitive as there was complete inhibition of germination at 1000 ppm. Similarly, spores of Alternaria brassicae, Curvularia lunata and Helminthosporium pennisetti showed less than 3% germination at the same concentration. Rest of the fungi showed more than 15% spore germination at the same concentration.

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Effect of 1-corydalmine, an Alkaloid Isolated from Corydalis chaerophylla Roots on Spore Germination of Some Fungi

  • Basha, S. Ameer;Jha, R.N.;Pandey, V.B.;Singh, U.P.
    • Mycobiology
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    • v.35 no.2
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    • pp.69-71
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    • 2007
  • 1-Corydalmine, an alkaloid isolated from roots of Corydalis ehaerophylla inhibited spore germination of some plant pathogenic as well as saprophytic fungi e.g. Alternaria brassicae, A. brassicieola, A. solani, Curvularia lunata, C. maculans, C. sp., C. pallseens, Erysiphe pisi, Fusarium udum, Helminthosporium species, H. penniseti and a Heterosporium species. 1-Corydalmine significantly inhibited spore germination of all the fungi at 100 to 1500 ppm. It was effective against all the fungi at 1500 ppm. C. lunata was highly sensitive to this chemical even at 250 ppm.

Taxonomical Characteristics of Tropical Species of Xylaria Collected from Taiwan (대만산 Xylaria속 열대종의 분류학적 특성)

  • Lee, Yang-Soo
    • The Korean Journal of Mycology
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    • v.27 no.1 s.88
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    • pp.73-75
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    • 1999
  • Three species of the genus Xylaria are recognized on Taiwan materials: X. allantoidea (Berk.) Fr. and X. obovata (Berk.) Fr.; including one new record X. curta Fr., having $9.0-10.8{\times}3.9-5.4\;{\mu}m$ ascospores, in Taiwan. The collection of Xylaria allantoidea from Taiwan is compared to other collections in morphological characters. The species are described from the host and in culture by a bright microscope and a scanning electron microscope.

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A New Record of the Genus Camarops (Boliniaceae) in Korea

  • Kim, Changmu;Lee, Jin Sung;Lim, Young Woon
    • The Korean Journal of Mycology
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    • v.42 no.4
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    • pp.341-343
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    • 2014
  • Camarops ustulinoides (Henn.) Nannf., belonging to the family Boliniaceae (Order Boliniales), is reported as new to Korea. The morphological characteristics and molecular phylogenetic analysis based on the nucLSU region sequence confirm the recognition of this taxon. Illustrated descriptions of C. ustulinoides are provided.

Bremia lactucae causing Downy Mildew on Lactuca serriola in Korea

  • Lee, Jin A;Kim, Bora;Lee, Dong-Jae;Choi, Young-Joon
    • The Korean Journal of Mycology
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    • v.49 no.3
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    • pp.379-383
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    • 2021
  • Lactuca serriola L. (syn. L. scariola L.), commonly known as prickly lettuce, invaded Korea in the late 1970s. The plant has since become widely naturalized and disruptive to native plant communities. In May 2020, downy mildew infections were observed on L. serriola in Gimje-si, Korea. Molecular phylogenetic and morphological analyses identified the causal agent as Bremia lactucae. This is the first report of B. lactucae infection on L. serriola in Korea.