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우광복,장진성,장계선,어주경,이은희 서울大學校農業生命科學大學附屬樹木園 2008 서울大學校 樹木園 硏究報告 Vol.- No.26
This study was carried out to investigate the flora of major mountains located in Gwanghwa Island, Incheon Metropolitan City. Three or four times of field collection were conducted for four sites (Mt. Hyeolgu & Toemo, Mt. Haemyeong, Mt. Hwagae and Mt. Bongcheon) in 2007. Totally 67 families, 164 genera, and 215 taxa were collected. The flora of surveyed area contained 16 taxa of conservation priority grade. The total scored points of the surveyed area were 40 points. The points for collection sites were listed as follows; Mt. Hyeolgu & Toemo (16 points), Hwagae-san (16), Haemyeong-san (14), and Bongcheon-san (8). Clematis brachyura Maxim., Viburnum carlesii Hems!' found at Mt. Haemyeong in Seokmo Island, which are endemic and rare in Korea, need to be paid attention for consersation.
Ju-Kyeong Eo,Ahn-Heum Eom 고려인삼학회 2009 Journal of Ginseng Research Vol.33 No.4
The effects of benomyl treatment on ginsenoside and arbuscular mycorrhizal (AM) symbiosis in the roots of Panax ginseng that were collected from two sites in Korea were investigated. The ginseng roots that were treated with benomyl showed different species compositions of AM fungi colonizing the ginseng roots, compared to untreated roots. In the analysis of ginsenoside, Rc was significantly higher in benomyl untreated roots than in benomyl treated roots. The results suggest that AM fungal species composition and ginsenosides in ginseng root could be influenced by the benomyl treatment.
( Ju-kyeong Eo ),( Jae-eui Cha ),( Ahn-heum Eom ) 한국균학회 2023 韓國菌學會誌 Vol.51 No.4
Bamboo is host to diverse range of fungi, however, research on bambusicolous fungi remains insignificant in Korea. The genus Apiospora is prevalent in various environments, particularly as endophytic fungi in Poaceae, to which bamboo belongs. In this study, endophytic fungi were isolated from stems of Pseudosasa japonica collected from Gongjusi, Korea. To identify these endophytic fungi, we observed morphological characteristics and conducted phylogenetic analysis using internal transcribed spacer (ITS), large subunit ribosomal DNA (LSU), and β-tubulin (TUB2) DNA, identifying and describing an unrecorded fungus, Apiospora pseudosinensis.
One Unrecorded Endophytic Fungi from Sub-alpine Conifer, Rhizosphaera pini
( Ju-kyeong Eo ),( Eunsu Park ) 한국균학회 2019 韓國菌學會誌 Vol.47 No.2
An endophytic fungus, Rhizosphaera pini strain NIE7426, was isolated from the sub-alpine coniferous tree Abies nephrolepis in Mt. Nochu of Gangwon Province. It was characterized by macroscopic and microscopic features, as well as the internal transcribed spacer (ITS) 1, 2 and 5.8S sequences. All morphological and molecular features support the first recognition of this taxon in Korea. In addition, this study adds A. nephrolepis as a host plant R. pini.
Dermea piceina (Dermateaceae): An Unrecorded Endophytic Fungus of Isolated from Abies koreana
( Ju-kyeong Eo ),( Eunsu Park ),( Han-na Choe ) 한국균학회 2020 韓國菌學會誌 Vol.48 No.4
We found an unrecorded endophytic fungus, Dermea piceina J.W. Groves, isolated from alpine conifer Abies koreana . Until now only one Dermea species, D . cerasi, has been reported in Korea. In this study, we compared morphological characteristics and DNA sequences, including internal transcribed spacer and 28S ribosomal DNA, of D . piceina isolated from A. koreana with those of related species. Here, we present morphological and molecular characters of this fungus for the first time in Korea.
( Ju-kyeong Eo ),( Eunsu Park ),( Suhwan Kim ),( Han-na Choe ) 한국균학회 2021 韓國菌學會誌 Vol.49 No.3
The unrecorded fungus Galactomyces pseudocandidus de Hoog & M.T. Sm. was isolated and cultured from an introduced species, Procambarus clarkii, in Korea. Two related species, Galactomyces citri-aurantii and Geotrichum candidum, have been reported, but no other Galactomyces spp. have been found in Korea. In this study, we isolated G. pseudocandidus from the digestive tract of American crayfish using RGY (river water-glucose-yeast) medium and then compared the morphological and molecular characteristics of this species with those of related species. As a result, we confirmed that G. pseudocandidus is an unrecorded fungus in Korea, so we described and reported the cultural characteristics and microstructures, such as conidia.
Unrecorded Soil Fungi Isolated from the Dokdo, Korea
Eo, Ju-Kyeong,Park, Eunsu,Choi, Jae-Wook,Shin, Hyun-Chul,Choi, Seung-Se,Park, So-Yeon National Institute of Ecology 2022 국립생태원회보(PNIE) Vol.3 No.3
Two unrecorded fungi, Diaporthe perseae and Fusarium falciforme, were isolated from soil sampled from Dokdo in Korea. There have been many reports of Diaporthe sp. and Fusarium sp. in mainland Korea but none of them have reported in Dokdo so far. We used the morphological features and two molecular markers including the internal transcribed spacer and translation elongation factor 1-α region to compare and analyze these species with the closely related taxa. As a result, we confirmed that these fungi were unrecorded soil fungi in Korea. Then, the cultural and morphological characteristics such as the conidia of these two fungal species could be clarified. These results are expected to help us to understand the distribution of fungi in Dokdo and manage the Dokdo Island Natural Reserve.
Diversity of Endophytic Fungi Isolated from Korean Ginseng Leaves
( Ju Kyeong Eo ),( Min Seok Choi ),( Ahn Heum Eom ) 한국균학회 2014 韓國菌學會誌 Vol.42 No.2
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.
Eo, Ju-Kyeong,Eom, Ahn-Heum The Korean Society of Ginseng 2009 Journal of Ginseng Research Vol.33 No.4
The effects of benomyl treatment on ginsenoside and arbuscular mycorrhizal (AM) symbiosis in the roots of Panax ginseng that were collected from two sites in Korea were investigated. The ginseng roots that were treated with benomyl showed different species compositions of AM fungi colonizing the ginseng roots, compared to untreated roots. In the analysis of ginsenoside, Rc was significantly higher in benomyl untreated roots than in benomyl treated roots. The results suggest that AM fungal species composition and ginsenosides in ginseng root could be influenced by the benomyl treatment.