• Title/Summary/Keyword: Foliar endophytes

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Diversity of Endophytic Fungi Isolated from Korean Ginseng Leaves

  • Eo, Ju-Kyeong;Choi, Min-Seok;Eom, Ahn-Heum
    • Mycobiology
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    • v.42 no.2
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    • pp.147-151
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    • 2014
  • We investigated the diversity of the foliar endophytes of Korean ginseng. Endophytic fungi were isolated from healthy leaves of mountain-cultivated ginseng (MCG) and field-cultivated ginseng (FCG) at 4 sites in Chungbuk Province. A total of 24 species of fungal endophytes were identified using molecular approaches. Additionally, the diversity of these endophytic fungi was compared between MCG and FCG. The major isolated endophytes were Edenia gomezpompae and Gibberella moniliformis in the MCG and FCG samples, respectively. The results suggest that ginseng endophytes have different community structures in different environments, and this understanding may prove useful in ginseng cultivation.

Diversity of Foliar Endophytic Fungi Inhabiting Coniferous Trees in Korea

  • Eo, Ju-Kyeong;Eom, Ahn-Heum
    • The Korean Journal of Mycology
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    • v.46 no.3
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    • pp.205-211
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    • 2018
  • Fungal endophytes are defined as fungi inhabiting plant tissues, causing no apparent disease. As the agricultural and ecological importance of endophytes has increased, many studies have been performed on various aspects, ranging from basic identification, taxonomy, and evolution to secondary metabolites with potential for human use. In the Korean Peninsula, conifers are the most commonly found evergreen trees, with approximately 30 to 60 reported taxa. Studies on the effect of conifer-associated endophytes on the host plants are required for the preservation and conservation of coniferous forests which decline by climate change and deforestation. This review summarizes the diversity of endophytic fungi in coniferous trees of Korea and their relationship with host plants.

Identification of Unrecorded Endophytic Fungi Isolated from Leaves of Woody Plants in Jejudo, Korea (제주도에 서식하는 목본 식물의 잎에서 분리한 미기록 내생균)

  • Lee, Bong-Hyung;Kim, Dong-Yeo;Park, Hyeok;Eo, Ju-Kyeong;Lee, Hyang Burm;Eom, Ahn-Heum
    • The Korean Journal of Mycology
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    • v.44 no.4
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    • pp.252-258
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    • 2016
  • In this study, endophytic fungi were isolated from the leaves of five species of woody plants in Jeju, Korea, namely Chamaecyparis obtusa, Cryptomeria japonica, Torreya nucifera, Ilex crenata, and Camellia japonica. The isolated fungal endophytes were identified based on their morphological and molecular characteristics including a sequence analysis of the internal transcribed spacer and 26S regions of rDNA and ${\beta}$-tubulin genes. Ten species of fungal endophytes have not been previously reported in Korea, namely Mycosphaerella aleuritidis, Neofusicoccum eucalyptorum, Neofusicoccum parvum, Phyllosticta citrichinensis, Phyllosticta cryptomeriae, Phomopsis cotoneastri, Sphaerulina rhododendricola, Guignardia mangiferae, Lophodermium jiangnanense, and Lophodermium minus.

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.

Diversity of Foliar Endophytic Fungi Isolated from Lindera obtusiloba in Korea (생강나무(Lindera obtusiloba)의 잎에서 분리한 내생균의 다양성)

  • Kim, Chang-Kyun;Eo, Ju-Kyeong;Eom, Ahn-Heum
    • The Korean Journal of Mycology
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    • v.40 no.3
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    • pp.136-140
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    • 2012
  • Leaves of Lindera obtusiloba were collected from four sites in Gangwon Province, Korea. Endophytic fungi were isolated from the leaves and identified using ITS sequences of rDNA. Total twelve species belonging of endophytic fungi were identified; Alternaria alternata, Annulohypoxylon annulatum, Creosphaeria sassafras, Diaporthe eres, Discosia sp., Epicoccum nigrum, Glomerella acutata, Glomerella cingulata, Paraconiothyrium brasiliense, Pestalotiopsis neglecta, Phomopsis amygdali, Xylaria sp. The endophytic fungus, Phomopsis amygdali, was the most dominant species isolated from L. obtusiloba in this study and the fungal diversities varied in the different sites.