• Title, Summary, Keyword: Fungi

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Effects of Cadmium on Radial Growth and Dry Mass Production of Ectomycorrhizal Fungi

  • Kim, Chang-Gi;Power, Sally Anne;Bell, John Nigel Berridge
    • The Korean Journal of Ecology
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    • v.27 no.5
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    • pp.301-306
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    • 2004
  • The sensitivity to Cd of three ectomycorrhizal fungi, Paxillus involutus, Suillus bovinus and Rhizopogon subcaerulescens, was assessed and compared in terms of radial growth and dry mass production, using both agar and liquid culture. The radial growth of S. bovinus and R. subcaerulescens was significantly reduced at the lowest concentration (0.1mg Cd/L). The 50% effective concentration (EC$_{50}$) values calculated from radial growth rates of the ectomycorrhizal fungi showed that the sensitivity of the fungi to Cd was greatest in S. bovinus and lowest in R. subcaerulescens. Cadmium addition also significantly decreased dry mass production of the ectomycorrhizal fungi. The sensitivity of the fungi to Cd in terms of dry mass production, was greatest in S. bovinus and lowest in P. involutus. Higher growth rates of P. involutus and melanisation of R. subcaerulescens appeared to contribute to reduced Cd toxicity.

Effects of Mycorrhizal and Endophytic Fungi on Plant Community: a Microcosm Study

  • Park, Sang-Hyun;Eom, Ahn-Heum
    • Mycobiology
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    • v.35 no.4
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    • pp.186-190
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    • 2007
  • This study was conducted to investigate the effects of foliar endophytic fungi and arbuscular mycorrhizal fungi (AMF) on plant community structure in experimental microcosms containing an assemblage of five species of plants (Oenothera odorata, Plantago asiatica, Trifolium repens, Isodon japonicas and Aster yomena). Leaves of Sasa borealis, Potentilia fragarioides, and Viola mandshurica were collected in Chungbuk, Korea. Endophytic fungi were isolated from the surface sterilized leaves and identified to species level using molecular and morphological techniques. Four isolates of the endophytic fungi were inoculated to the leaves of host plants in the microcosms. Also, three species of AMF spores were extracted from pure cultures and the mixture of the three species inoculated to the roots of the plants. After four months of growth in a green house, effects of both symbiotic fungi on plant species diversity, community composition and productivity were examined. The plant species diversity showed significant differences with inoculation of the symbiotic fungi. Results indicate that AMF significantly affect plant productivity and plant community structure.

Distribution of Airborne Fungi in the Public Facilities (다중이용시설 내 공기 중의 진균 분포)

  • Koh, Yeon-Ja;Gong, Young-Woo;Lee, Jae-Mann;Go, Jong-Myoung;Kim, Yong-Hee;JeGal, Seung
    • Journal of environmental and Sanitary engineering
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    • v.22 no.4
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    • pp.77-85
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    • 2007
  • Recently, there is increasing interest in indoor air pollution. Fungal spores are one of the pollutants that is the causes of hypersensitivity reactions, bronchial asthma, allergic rhinitis. This study was performed to assess the levels of fungi concentration in public facilities and airborne fungi were collected with the air sampler using DRBC(Dichloran rose bengal chloramphenicol) agar. It was found that airborne fungi concentration were related to the humidity and the people movement. 10 genera of fungi was isolated and identified and the most common culturable fungi were Penicillium, Cladosporium, and Aspergillus.

Relationship between Climatic Factors and the Distribution of Higher Fungi in Byeonsanbando National Park, Korea

  • Jang, Seog-Ki;Hur, Tae-Chul
    • Mycobiology
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    • v.42 no.1
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    • pp.27-33
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    • 2014
  • From April 2009 to October 2011, we surveyed the higher fungi in the Byeonsanbando National Park, Korea. In total, we identified 2 kingdoms, 3 divisions, 7 classes, 22 orders, 63 families, 149 genera, and 313 species (including 6 undocumented taxa: 2 families, 2 genera, and 2 species). Seventeen 17 orders, 49 families, 128 genera, and 286 species belonged to Basidiomycota; 7 orders, 9 families, 15 genera, and 21 species were of Ascomycota; and 4 orders, 5 families, 6 genera, and 6 species of primordial fungi. Among the Basidiomycota, Agaricomycetes were represented by 47 families, 126 genera, and 282 species. The most common fungi were Boletaceae (33 species), followed by Russulaceae (30), Agaricaceae (27), and Amanitaceae (24). Various species of most of the higher fungi occurred during periods with average temperatures of $23{\sim}24.9^{\circ}C$, maximum temperatures of $28{\sim}31.9^{\circ}C$, minimum temperatures of $22{\sim}22.9^{\circ}C$, > 82% relative humidity, and > 200 mm precipitation.

Four Species of Montagnulaceae Unrecorded in Korea and Isolated from Plant Litter in Freshwater

  • Goh, Jaeduk;Mun, Hye Yeon;Oh, Yoosun;Chung, Namil
    • The Korean Journal of Mycology
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    • v.44 no.4
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    • pp.263-270
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    • 2016
  • Freshwater is a diverse and complex environment for fungi and provides several types of habitat including plant litter, sediment, and carcasses. We collected plant litter from the main stream and branch streams of Nakdong River, Sohancheon in Samcheok, and Geumoreum in Jeju. From several samples of plant litter, we isolated 8 fungal strains belonging to 4 Montagnulaceae species unrecorded in Korea: Paraconiothyrium archidendri, Paraphaeosphaeria sporulosa, Paraphaeosphaeria michotii, and Paraphaeosphaeria viridescens. These fungi were identified by phylogenetic analysis using the internal transcribed spacer (ITS) region and examination of morphological characteristics. Montagnulaceae is known as one of the families in Pleosporales and includes coniothyrium-like fungi. In this study, we described phylogenetic analysis and mycological characteristics of these species, and this is the first report of these taxa in Korea.

Taxonomic Investigations on Korean Higher Fungi(V) (한국산 고등 균류의 분석학적 연구(V))

  • 김병각
    • YAKHAK HOEJI
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    • v.22 no.2
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    • pp.91-114
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    • 1978
  • To investigate the fungal flora in Korea, the basidio-mycetes and other higher fungi were collected in Seoul and Gyung-gi Province and examined for identification. Nine species and two varieties were identified and two of them, Agaricus xanthodermus Gen. and Lactarius nigroviolascens var. marginatus Smith & Hesler, were found to be unrecorded fungi. The total number of the higher fungi in Korea now exceeds 600 species including those reported during the past five years.

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Medicinal Fungi in Korea (한국산 약용 균류)

  • Ahn, Duk-Kyun
    • The Korean Journal of Mycology
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    • v.20 no.2
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    • pp.154-165
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    • 1992
  • Some kinds of fungi have long been used for a medicine in the Orient. The 162 species (82 genera) of the medicinal fungi were listed here for the reference.

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The New Method To Improve Pine-Fungi Activity By Customed Forest Tending (기술사마당 - 맞춤형 숲 가꾸기를 통한 송이균류 활력증대방안)

  • Chun, Myung-Seog
    • Journal of the Korean Professional Engineers Association
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    • v.42 no.5
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    • pp.50-54
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    • 2009
  • The new method to improve pine-fungi activity are needed by customed forest tending. Fungi is essencial for human life. Pine-mushroom (Trichroma matsutake)products are related to fungi activity. These are improved by customed forest tending. For example, species arrangement, thinning ratio, light control, water supply etc.

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