• Title/Summary/Keyword: Helotiales

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Mitrula aurea sp. nov., A New Aero-Aquatic Species from the Republic of Korea

  • Sung-Eun Cho;Hyung So Kim;Young-Nam Kwag;Dong-Hyeon Lee;Jae-Gu Han;Chang Sun Kim
    • Mycobiology
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    • v.50 no.4
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    • pp.213-218
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    • 2022
  • The genus Mitrula (Mitrulaceae, Helotiales), as also known as swamp beacons, inhabits submerged, decaying vegetation in standing or decaying needles, twigs, leaves, and shallow water. They play an important role in carbon cycling in some freshwater ecosystems. In the herbarium of the Korea National Arboretum (KH), seven Mitrula specimens were collected during mushroom forays in the period from 2019 to 2021. The Korean collections were found to be macromorphologically closely related to M. paludosa and M. elegans, but micro-morphologically they could be distinguished by characteristics of slightly narrower asci and aseptate ascospores. Our molecular phylogenetic analyses of the internal transcribed spacer (ITS) and 28S rDNA regions also revealed that our specimens were related to M. paludosa and M. elegans, but formed a distinct clade. Based on these results, we reported our specimens as new to science and discussed the phylogeny and diversity of Mitrula species.

Diversity Analysis of Endophytic Fungi Isolated from the Roots of Coastal Plants in Taean Peninsula (태안반도에 자생하는 해안식물 뿌리에서 분리한 내생진균의 다양성 분석)

  • You, Young-Hyun;Yoon, Nam-Gyeong;Yoon, Hyeokjun;Kim, Hyun;Lim, Sung Hwan;Choo, Yeon-Sik;Kim, Jong-Guk
    • The Korean Journal of Mycology
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    • v.42 no.1
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    • pp.79-85
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    • 2014
  • Forty-two endophytic fungi were isolated from the roots of coastal plants, such as Aster sphathulifolius Maxim., Aster tripolium L., Phragmites australis, and Puccinellia nipponica Ohwi, naturally growing in Taean peninsula. The identity of the endophytic fungal strains was analyzed using the sequence of internal transcribed spacer regions. All fungi belonged to the phylum Ascomycota, and they were classified into eight orders (Botryosphaeriales, Capnodiales, Diaporthales, Dothideales, Eurotiales, Helotiales, Hypocreales, and Pleosporales) and thirteen genera (Alternaria, Aureobasidium, Cadophora, Cladosporium, Davidiella, Diaporthe, Fusarium, Gibberella, Macrophomina, Metarhizium, Neosartorya, Penicillium, and Phoma). Among the analyzed fungi, the fungi belonging to the genus Penicillium in Eurotiales were the most widely distributed. The host plant Aster tripolium L. was found to contain the most diverse endophytic fungal species among the coastal plants.

Proliferodiscus inspersus var. magniascus and Rodwayella citrinula, Two Unrecorded Taxa of Hyaloscyphaceae (Tribe Arachnopezizeae) in Korea

  • Han, Jae-Gu;Sung, Gi-Ho;Shin, Hyeon-Dong
    • Mycobiology
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    • v.42 no.1
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    • pp.86-91
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    • 2014
  • A fungal survey that targeted the tribe Arachnopezizeae (Hyaloscyphaceae, Helotiales) was conducted in Korea. One variety belonging to Proliferodiscus and one species belonging to Rodwayella are recorded for the first time from Korea. Proliferodiscus inspersus var. magniascus differs from P. earoleucus by its amyloid reaction in ascal apices and larger asci. Rodwayella citrinula is distinguished from other members of the genus by small ascospores and its occurrence on grasses. The descriptions, illustrations and cultural characteristics of the species are provided.

Diversity of Ectomycorrhizal fungi of Abies koreana at Mt. Halla (한라산 구상나무(Abies koreana)의 외생균근의 다양성)

  • Sim, Mi-Young;Eo, Ju-Kyeong;Eom, Ahn-Heum
    • The Korean Journal of Mycology
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    • v.37 no.2
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    • pp.134-138
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    • 2009
  • This study was conducted to investigate colonization of ectomycorrhizal fungi(ECM) in roots of Abies koreana which is an endemic and endangered species in Korea. Roots of A. koreana were collected at Mt. Halla. ECM root tips were classified using morphotyping and identified using sequences of internal transcribed spacer (ITS) region of the fungal rDNA. Total 8 species of ECM fungi were identified from roots of 11 seedlings of A. koreana : Cenococum geophilum, Russula brevipes, 2 species of Russula, 2 species of Thelephora, Cortinarius camphorates and 2 species of Helotiales. These species were known to be typical ectomycorrhizal fungi found in coniferous mature forests.

Endophytic Fungal Diversity Associated with the Roots of Coastal Sand-dune Plants in the Sindu-ri Coastal Sand Dune, Korea (신두리 해안사구에 자생하는 사구식물 내생진균의 다양성 분석)

  • You, Young-Hyun;Seo, Yeonggyo;Yoon, Hyeokjun;Kim, Hyun;Kim, Ye-Eun;Khalmuratova, Irina;Rim, Soon-Ok;Kim, Changmu;Kim, Jong-Guk
    • Microbiology and Biotechnology Letters
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    • v.41 no.3
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    • pp.300-310
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    • 2013
  • The coastal sand-dune plants of eight species; Argusia sibirica, Calystegia soldanella, Elymus mollis, Lithospermum zollingeri, Raphanus sativus, Salsola collina, Zoysia macrostachya, and Zoysia sinica were collected from the Shindu-ri coastal sand dune. Ninety-eight endophytic fungal strains were isolated from the roots of these plants, analyzed, and identified by sequences in their internal transcribed spacers (ITS) at the ITS1, 5.8S, and ITS2 regions. The diversity of endophytic fungi isolated from coastal sand-dune plants was confirmed with various diversity indices. The fungal strains belonged to thirteen orders: Capnodiales (3.09%), Eurotiales (70.10%), Glomerellales (1.03%), Helotiales (3.09%), Hypocreales (9.28%), Mortierellales (2.06%), Onygenales (1.03%), Ophiostomatales (1.03%), Pleosporales (1.03%), Polyporales (1.03%), Russulales (1.03%), Saccharomycetales (2.06%), and Xylariales (1.03%). Of the endophytic fungal strains collected, Penicillium (59.18% in Eurotiales) and Fusarium (5.10% in Hypocreales) were the most abundant in coastal sand-dune plants. The endophytic fungal strains isolated from C. soldanella were more diverse compared to strains from the other coastal sand-dune plants.

Note on the New Record of Mitrula paludosa (Geoglossaceae) in Korea (콩나물버섯과 미기록종 Mitrula paludosa (습지등불버섯 : 신칭)의 보고)

  • Park, Yong-Woo;Koo, Chang-Duck;Hong, Dae-Eui;Kim, Tae-Heon
    • The Korean Journal of Mycology
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    • v.37 no.1
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    • pp.104-107
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    • 2009
  • Mitrula paludosa (Geoglossaccae, Helotiales, Ascomycetes) is reported about morphological and ecological characteristics for the first time in Korea. The mushroom fruited on rotten pine leaves or fine twigs in ditches with flowing or standing water in Sogri Mountain National Park from May to June. The apothecium of M. paludosa is 20 to 50 mm tall. The cap is bright yellow to orange, cylindrical to wrinkled ovoid and $5{\sim}10\;{\times}\;10{\sim}20$ mm. The stem is whitish and cylindrical distinctly set off from the cap. The ascospore is hyaline, smooth long elliptical fusoid with round ends and $13{\sim}17\;{\times}\;1.5{\sim}2.0{\mu}m$. The ascus is unitunicate, $90{\sim}110\;{\times}\;5{\sim}6{\mu}m$, and has eight spores biseriately lined to the inoperculate apex. Paraphyses are septate filiform, $95{\sim}120\;{\times}\;1.0{\sim}1.5{\mu}m$, $7{\sim}10{\mu}m$ longer than the asci.