• Title/Summary/Keyword: Acaulospora

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Identification of Mycorrhizal Fungi Identified on Citrus Orchard Soils in The Island of Cheju (제주도 감귤원 토양에서 분리한 공생균근균의 동정)

  • Lee, Yong-Se;Chung, Jong-Bae;Moon, Doo-Khil
    • The Korean Journal of Mycology
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    • v.26 no.1 s.84
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    • pp.97-102
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    • 1998
  • VA-mycorrhizal spores were collected from the 14 citurs orchards of different soil textures and locations in Cheju island. Five species and two kinds of spores were identified as based on the morphological characteristics of the spores; Acaulospora bireticulata, Glomus deserticola, G. geosporum, G. vesiculiferum, and Sclerocystis pachycaulis. Additionally, two kind spores of Acaulospora were also observed but difficult to be identified in this moment. Glomus deserticola and unidentified spores of Acaulospora (brown spores sized 90 to $125\;{\mu}m$ in diameter) were most frequently observed in the all soil specimens in Cheju, while the other kinds of spores were rarely observed in the soil of Cheju.

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Acaulospora jejuensis, a New Species in Glomeromycota from Korea

  • Park, Hyeok;Ka, Kang-Hyeon;Eom, Ahn-Heum
    • The Korean Journal of Mycology
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    • v.49 no.4
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    • pp.425-431
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    • 2021
  • New species of arbuscular mycorrhizal fungi (Glomeromycota), Acaulospora jejuensis, was isolated from rhizosphere soils of Miscanthus sinensis in the grassland in Jeju Island of Korea. The species was identified using the morphological characteristics of the spores and the molecular phylogenetic analysis using partial DNA sequences from small subunit rDNA (SSU), internal transcribed spacer (ITS), and large subunit rDNA (LSU). Phylogenetic analysis placed the fungal species in a distinct clade within genus Acaulospora. Also, the species exhibited the morphological characteristics distinct from the other members of the genus. Therefore, Acaulospora jejuensis was described as a novel species from Korea.

Arbuscular mycorrhizal spores found from the soils of the leguminous plants in Korea (두과식물에서 발견된 내생균근 포자들)

  • Ahn, Tae-kun;Lee, Min-Woog;Ka, Kang-Hyeon;Lee, Sang-Sun
    • The Korean Journal of Mycology
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    • v.20 no.2
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    • pp.95-108
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    • 1992
  • Sixty five soil specimens were collected from the nineteen leguminous plant roots throughout 9 sites in four Provinces from Augast 12 to November 21, 1991. VA-mycorrhizal spores isolated from the collected soils were identified and classified into four genera 21 species. However, six spores were newly found and described here: Acaulospora elegans, A. undulata, Glomus laminated spores of. macrocarpus var. macrocarpus, Gl. WUMI%3, Gl. scintillans, Scutellospora verrucosa. Species of three spores that belong to 3 genera; Acaulospora sp., Glomus sp., Scutellospora sp. were unidentified.

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Acaulosproa koreana, a New Species of Arbuscular Mycorrhizal Fungi (Glomeromycota) Associated with Roots of Woody Plants in Korea

  • Lee, Eun-Hwa;Park, Sang-Hee;Eo, Ju-Kyeong;Ka, Kang-Hyeon;Eom, Ahn-Heum
    • Mycobiology
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    • v.46 no.4
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    • pp.341-348
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    • 2018
  • A new species of arbuscular mycorrhizal fungi (Glomeromycota), Acaulospora koreana, was isolated from forest soils in South Korea. This novel fungus was collected from the rhizosphere of Lindera obtusiloba and Styrax obassia in forest and propagated with Sorghum bicolor in pot. Morphological characteristics of spores of A. koreana are rarely distinguished from Acaulospora mellea, which is reported as one of the most abundant mycorrhizal species in Korea. However, molecular evidence of rDNA sequence using improved primers for glomeromycotan fungal identification strongly supported that A. koreana is different from A. mellea but also any other species belonging to the genus Acaulospora. This is the first novel glomeromycatan fungus introduced in South Korea, but it suggests that there is a high possibility for discovering new arbuscular mycorrhizal fungi considering the abundance of plant species and advanced phylogenetic analysis technique.

Community Structure of Arbuscular Mycorrhizal Fungi in the Islands of Chungnam, Korea (충남 섬 지역 근권 토양의 수지상균근균 군집 구조)

  • Lee, Jeong-Youn;Lee, Eun-Hwa;Ka, Kang-Hyeon;Eom, Ahn-Heum
    • The Korean Journal of Mycology
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    • v.44 no.1
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    • pp.16-22
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    • 2016
  • Five islands (Sinjindo, Mado, Daenanjido, Wonsando, and Sapsido) and the coastal area (Muchangpo) in Chungnam, Korea, were selected to determine the diversity of arbuscular mycorrhizal (AM) fungi. Soil-inhabiting AM fungi were isolated and identified on the basis of morphological characteristics and sequence analyses of 18s rDNA. The differences in the fungal community structures were compared among sites. As a result, 24 species of AM fungi were identified, of which two species of AM fungi, Acaulospora brasiliensis and Redeckera fulvum, were isolated for the first time in Korea. This study revealed that AM fungal spore abundance was low and the genus Acaulospora was dominant in most of the islands. AM fungal community structures in five Islands were highly similar. However, the coastal area, Muchangpo, had different AM fungal community structure from the islands.

Endomycorrhizal Fungi identified on the Soils in Forest and Coast Areas (산림 및 해안지역에서 발견된 내생균근)

  • Eom, Ahn-Heum;Lee, Sang-Sun
    • The Korean Journal of Mycology
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    • v.17 no.1
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    • pp.14-20
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    • 1989
  • The presence of endomycorrhizal fungi was examined on the soils collected from the followings; Cryptomeria japonica dominant forest (Wan San Park, Jun Ju city) and two coast areas (Digitaria sanginalis dominant; Sin Chang Ri, Young Il Kun and Pragmited communis dominant; Sap Kyo Cheon, A San). Six species in Endogonales were identified; Glomus intraradices, G. occulum, G. clarum, Acaulospora bireticulata, Scutellospora aurigloba, and Sc. gilmorei.

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First Report of Arbuscular Mycorrhizal Fungi in Korea: Acaulospora delicata,Dentiscutata colliculosa, and Racocetra alborosea.

  • Park, Hyeok;Ka, Kang-Hyeon;Eom, Ahn-Heum
    • The Korean Journal of Mycology
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    • v.48 no.3
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    • pp.209-215
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    • 2020
  • Spores of arbuscular mycorrhizal fungi (phylum Glomeromycota) were isolated from rhizosphere soil collected in Korea. We identified the morphological characteristics of the spores and performed a phylogenetic analysis using the rDNA 18S, 5.8S, and 28S regions. To the best of our knowledge, we confirm the presence of three species of glomeromycotan fungi previously not reported in Korea, namely Acaulospora delicata, Dentiscutata colliculosa, and Racocetra alborosea. We described the morphological characteristics and results of phylogenetic analysis of these species.

Diversity of Arbuscular Mycorrhizal Fungi of Woody Plants in Mt. Munan (문안산의 목본식물과 공생하는 수지상균근균의 다양성)

  • Park, Sang-Hee;Eo, Ju-Kyeong;Ka, Kang-Hyeon;Eom, Ahn-Heum
    • The Korean Journal of Mycology
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    • v.39 no.1
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    • pp.1-6
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    • 2011
  • This study was conducted to reveal the diversity of arbuscular mycorrhizal fungi (AMF) in Mt. Munan, based on the morphological and molecular characters. Soil and root samples were collected from the rhizosphere of host plants including Lindera obtusiloba, Stephanandra incisa, Styrax obassis and Symplocos sawafutagi and AMF were trap-cultured with Sorghum bicolor as a host plant in a greenhouse. The spores were extracted from the cultured soils and five species were identified using morphological and molecular characteristics; Acaulospora longula, A. mellea, Ambispora leptoticha, Gigaspora margarita and Paraglomus occultum. The distribution of AMF showed different trends according to host plants. The dominant AMF species were A. longula in L. obtusiloba, A. leptoticha in S. incisa, S. obassis and S. sawafutagi.

Effect of Arbuscular Mycorrhizal Fungi on Growth of Korean Ginseng (Panax ginseng C. A. Mey.) Seedlings (수지상균근균이 인삼 (Panax ginseng C. A. Mey.)의 생장에 미치는 영향)

  • Kil, Yi-Jong;Eo, Ju-Kyeong;Eom, Ahn-Heum
    • The Korean Journal of Mycology
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    • v.41 no.2
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    • pp.81-94
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    • 2013
  • The purpose of this study was to investigate effects of inoculation of arbuscular mycorrhizal fungi (AMF) on growth of Korean ginseng (Panax ginseng C. A. Mey.) seedlings. Five species of AMF (Glomus mosseae, Glomus intraradices, Glomus etunicatum, Acaulospora longula, Acaulospora trappei) were inoculated to ginseng seedlings at 60 days after ginseng seed germination. Dry weights, heights of the plants and chlorophyll fluorescence were measured at 120 days after inoculation of AMF. Dry weights and shoot heights were increased in seedlings inoculated with AMF compared to the controls without AMF. However, chlorophyll fluorescence of seedlings with AMF showed no significant difference compared to the control.