• Title/Summary/Keyword: Unrecorded Fungi

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A Report of Five Unrecorded Fungal Species of Korea (국내 미기록 진균 5종 보고)

  • Ahn, Geum Ran;Kim, Bo Young;Lee, Geun Sick;Hyun, Min Woo;Lee, Chan Jung;Kim, Seong Hwan
    • The Korean Journal of Mycology
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    • v.44 no.4
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    • pp.240-246
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    • 2016
  • During a survey of the activities of fungi in steamed sweet potato, stored garlic, agricultural by-products for mushroom cultivation media, and pinewood chips from a pinewood nematode-infected tree, numerous fungal samples were isolated and identified. This study identified five species that have not been previously reported in Korea, namely Geomyces pannorum, Neopestalotiopsis javaensis, Penicillium allii, Penicillium chermesinum, and Ophiognomonia setacea. For all identified species, the cultural features of colonies formed on growth media, their morphological characteristics observed by a light microscope, and their molecular phylogenetic relationships based on nucleotide sequences of the internal transcribed spacer rDNA region or calmodulin gene were described.

Identification of Lophodermium Species Associated with Needle-cast Disease of Pines in Korea (한국(韓國) 소나무류(類)에 잎떨림병을 일으키는 Lophodermium 속(屬) 균(菌)의 동정(同定))

  • Lee, Seung Gue;Lee, Kyung Joon;La, Yong Joon;Yang, Seong Il;Yi, Chang Keun
    • Journal of Korean Society of Forest Science
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    • v.78 no.2
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    • pp.218-227
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    • 1989
  • Fallen and living pine needles bearing ascocarps were collected throughout the country from February, 1987 to October, 1988 to identify and describe Lophodermium species associated with Lophodermium needle cast disease of pines in Korea. All of the observed characteristics of given species were compared with published descriptions of the Lophodermium species. As a result of this study, six Lophodermium species were identified and described. L. pinastri was previously recorded while the other five species, i.e., L. australe, L. durzlabrum, L. nitens, L. pini-excelsae and L. pini-pumilae, were unrecorded in Korea. One Lophodermium species has not been fully identified in this study, and tentatively named as L. sp-1. L. australe was observed on the needles of Pinus rigida, P. rigida ${\times}$ taeda and P. taeda, L. pini-excelsae on P. parviflora and P. strobus, L. nitens, L. durilabrum and L. pini-pumilae on P. koraiensis, L. sp-1 on P. thunbergii and L. pinastri on P. densiflora and P. taeda. L. sp-1 was collected from the diseased regions of 2-year-old needles of P. thunbergii and L. durilabrum from P. koraiensis, suggesting pathogenic nature of these fungi.

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First Report of an Unrecorded Nematode-trapping Fungus, Arthrobotrys sinensis in Korea (국내 미기록 선충포식성 곰팡이 Arthrobotrys sinensis의 형태 및 분류)

  • Ha, Jihye;Kang, Heonil;Kang, Hangwon;Kim, Donggeun;Lee, Dongwoon;Kim, Yongchul;Choi, Insoo
    • Korean journal of applied entomology
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    • v.58 no.1
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    • pp.9-13
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    • 2019
  • Nematode-trapping fungi use various specialized traps to capture nematodes. A fungus that can capture nematodes in three dimensional adhesive networks was isolated from the soil around the root of Cucumis melo L. (Oriental melon) in Seongju, Korea. The conidiophores were found to be septate, hyaline, erect and $290-528(342.8){\mu}m$ high. It produces obovoid shape and 1-3 septate (commonly 2-septate) conidia with a size of $30.5{\times}20.3{\mu}m$. Molecular analysis of 5.8 S rDNA displayed 99% similarity to Arthrobotrys sinensis. On the basis of morphological, morphometric and molecular studies, the fungus was identified as A. sinensis. It is the first report in Korea which can be one of biological control resource of plant-parasitic nematode.