• Title/Summary/Keyword: Lophodermium

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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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Molecular Identification and Diveristy of Endophytic Fungi Isolated from Pinus densiflora in Boeun, Korea (보은 지역의 소나무(Pinus densiflora)에서 분리한 내생균의 동정과 다양성)

  • Gil, Yi-Jong;Eo, Ju-Kyeong;Eom, Ahn-Heum
    • The Korean Journal of Mycology
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    • v.37 no.2
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    • pp.130-133
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    • 2009
  • The endophytic fungi were isolated from red pine trees (Pinus densiflora) that were distributed in three sites of Chungbuk, Korea. Twenty fungal isolates were isolated from 16 trees and divided into 8 groups by morphological characters. The fungal isolates were identified using the sequences of ITS region of rDNA; Lophodermium complex, Sydowia polyspora, Hymenula sp., Sistotrema brinkmannii, Septoria pini-thunbergii, Earliella sp. Lophodermium spp. were the most frequently found fungal species the across sites and firstly detected from Pinus species in Korea by molecular work.

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.

Molecular Identification of Endophytic Fungi Isolated from Needle Leaves of Conifers in Bohyeon Mountain, Korea

  • Yoo, Jae-Joon;Eom, Ahn-Heum
    • Mycobiology
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    • v.40 no.4
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    • pp.231-235
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    • 2012
  • Fungal endophytes are microfungi that live in plants without causing apparent symptoms of infection. This study was conducted to identify endophytic fungi isolated from leaves of coniferous trees in Bohyeon Mountain of Korea. We collected leaves of two species of coniferous trees, Pinus densiflora and Pinus koraiensis, from 11 sites in the study area. A total 58 isolates were obtained and identified using molecular and morphological characteristics. Four species of endophytic fungi were isolated from P. densiflora: Lophodermium conigenum, Leotiomycetes sp., Septoria pini-thunbergii, and Polyporales sp., while two fungal species were isolated from P. koraiensis: Eurotiomycetes sp. and Rhytismataceae sp. The most frequently isolated species were L. conigenum and S. pini-thunbergii.

Diversity of Endophytic Fungi Isolated from Pinus densiflora and Larix kaempferi in Mt. Oser, Korea (충남 오서산에 분포하는 소나무와 일본잎갈나무에서 분리한 내생균의 다양성)

  • Eo, Ju-Kyeong;Kim, Chang-Kyun;Lee, Hyang Burm;Eom, Ahn-Heum
    • The Korean Journal of Mycology
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    • v.41 no.3
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    • pp.137-141
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    • 2013
  • Diversity of endophytic fungi of two species associated with host plants, Pinus densiflora and Larix kaempferi in Mt. Oser were investigated. Endophytic fungi were isolated from surface sterilized leaves of the 13 host plants and identified by morphological traits and rDNA ITS sequences analysis. Totally 37 isolates were discovered and identified into 17 taxa. Of them, 59% isolates belonged to Leotiomycetes, 30% isolates Sordariomyetes, 8% isolates Dothideomycetes and 3% isolates Agaricomycetes. Results showed a similar diversity pattern with previous studies. Also, species diversity (H') of endophytic fungi isolated from L. kaempferi was higher than that from P. densiflora. The endophytic species composition showed significant differences between host plants. Particularly, taxon of Lophodermium is a major genus in the host plants. However, critical research of the endophytic species diversities within the genus in Korea is required. The communities of endophytic fungi isolated in this study showed differences in diversities and species composition between host plants.

Molecular Identification of Endophytic Fungi Isolated from Needle Leaves of Pinus thunbergii (곰솔(Pinus thunbergii)의 침엽에서 분리한 내생균의 분자적 동정)

  • Kim, Chang-Kyun;Eo, Ju-Kyeong;Eom, Ahn-Heum
    • The Korean Journal of Mycology
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    • v.40 no.4
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    • pp.183-186
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    • 2012
  • Endophytic fungi were isolated from needle leaves of Pinus thunbergii distributed in Boryeong of Korea. Total 7 species of fungi were identified using partial sequences of ITS and LSU regions of nuclear DNA Anthostomella sepelibilis, Beltrania sp., Cladosporium sp., Coniochaeta velutina, Entonaema pallida, Lophodermium sp. and Nigrospora sphaerica sphaerica. The endophytic fungi, Beltrania sp. was the most dominant species isolated from P. thunbergii in this study. Results indicate that the distribution of endophytic fungi in the leaves of P. thunbergii could be influenced by environments of the fungal habitat.

Fungal Endophytes Isolated from Needle Leaves of Three Coniferous Species on Mt. Seodae of Korea

  • Eo, Ju-Kyeong;Kim, Chang-Kyun;Eom, Ahn-Heum
    • The Korean Journal of Mycology
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    • v.43 no.2
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    • pp.133-136
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    • 2015
  • We investigated endophytic fungi diversity of two Pinaceae species (Pinus densiflora, Pinus rigida) and one Cupressaceae species (Juniperus rigida) on Mt. Seodae, Korea. In total, 34 isolates were obtained from 19 host plants and identified according to internal transcribed spacer (ITS) region. As a result, they were placed in 13 taxa. Among them, 52.9% belonged to Leotiomycetes, 32.3% belonged to Sordariomycetes, 5.8% belonged to Agaricomycetes, and 3.0% for isolates belonged to either Eurotiomycetes, Dothideomycetes or Ustilaginomycetes. In particular, Lophodermium growing in pine would be an especially important instance of biodiversity for endophytes, suggesting that further study examining its ecological function in the environment is critical.

Diversity of Endophytic Fungi Isolated from Pinus densiflora and Juniperus rigida Distributed in Mt. Baekryeonsan and Mt. Johangsan, Korea

  • Eo, Ju-Kyeong;Park, Hyeok;Eom, Ahn-Heum
    • The Korean Journal of Mycology
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    • v.46 no.4
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    • pp.437-446
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    • 2018
  • We investigated the biodiversity of endophytic fungi in Pinus densiflora and Junipreus rigida from Mt. Baekryeonsan and Mt. Johangsan in Korea. In total, 59 isolates were discovered from 26 host plants and identified using sequences from the rDNA internal transcribed spacer (ITS) region. Twenty taxa of endophytic fungi were identified in this study; 62% of isolates belonged to Leotiomycetes, 34% belonged to Sordariomyetes, and 4% belonged to Agaricomycetes. Results confirmed three previously unreported endophytic fungi in Korea: Phanerochaete concrescens, Creosphaeria sassafras, and Scopuloides rimosa. Community analysis showed that the fungal diversity patterns of the samples from Mt Baekryeonsan and Mt. Johangsan are similar to those from previous studies and varied depending upon host and locality.