• Journal of Mushroom
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• v.14 no.4
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• pp.168-173
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• 2016

Four fungal species, during indoor air monitoring for fungi that possibly affect the field testing of a newly bred shiitake cultivar in cultivation houses located in Cheongyang, Chungnam Province and Jangheung, Jeonnam Province. Of these species, two are known to be plant pathogens and the other two are saprobes but potent contaminators in the mushroom cultivation environment. This study reports the morphological characteristics and phylogenetic relationships of these four species based on nucleotide sequences of the internal transcribed spacer (ITS) and 18S rDNA region, including their known information.

• The Korean Journal of Mycology
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• v.44 no.4
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• pp.240-246
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• 2016

During a survey of the activities of fungi in steamed sweet potato, stored garlic, agricultural by-products for mushroom cultivation media, and pinewood chips from a pinewood nematode-infected tree, numerous fungal samples were isolated and identified. This study identified five species that have not been previously reported in Korea, namely Geomyces pannorum, Neopestalotiopsis javaensis, Penicillium allii, Penicillium chermesinum, and Ophiognomonia setacea. For all identified species, the cultural features of colonies formed on growth media, their morphological characteristics observed by a light microscope, and their molecular phylogenetic relationships based on nucleotide sequences of the internal transcribed spacer rDNA region or calmodulin gene were described.

• The Korean Journal of Mycology
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• v.10 no.4
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• pp.203-206
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• 1982

Wood-rotting fungi were collected in Suweon campus of Seoul National University from September 1981 to October 1982. These fungi were classified into 2 orders, 8 families, 22 genera and 34 species. Of these, Gloeoporus adustus (Willd. ex Fr.) $Pil\acute{a}t$ and G. dichrous (Fr.) Bres. were found to be new species that belong to unrecorded genus in Korea. Korean common names of these two new species were designated by the authors. List of the wood-rotting fungi was given with the generic name of host trees on which the fungus was collected.

• Korean Journal of Plant Resources
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• v.35 no.1
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• pp.100-108
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• 2022

We found Urtica dioica L., an unrecorded alien plant, in the Han River basin of Korea. U. dioica is considered to be native to Europe, much of temperate Asia and western North Africa. This plant has been introduced to many other parts of the world. In Particularly, it reported as an invasive species from East Asia (Japan), Oceania and South America. This species is distinguished from related Korean taxa of the genus by its unisexual flower and dioecious plant species. In the Neighbor-Joining tree, U. dioica samples from the Han River Park (Sangam-dong, Mapo-gu, Seoul) and Yangjaecheon Stream (Daechi-dong, Gangnam-gu, Seoul) clustered into a clade consisting of a U. dioica s.s. Here, we provide a precise description, illustrations, a key to the related taxa, and photographs of its habitat.

• The Korean Journal of Mycology
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• v.51 no.3
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• pp.251-257
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• 2023

We isolated fungi from the rhizosphere of Fallopia sachalinensis in Dokdo islands. Morphological and molecular characters, based on the internal transcribed spacer (ITS), and partial large subunit (LSU) or partial beta-tubulin genes, were used to identify the isolated fungi. The results revealed the fungi isolated from the Fallopia rhizosphere to be Penicillium striatisporum and Gongronella sichuanensis. Given that these species have never previously been recorded in Korea, we have described the morphological and molecular characteristics of these fungi in this study.

• Korean journal of applied entomology
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• v.31 no.1
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• pp.50-68
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• 1992

The results of survey on the nematodes associated with sapling from 8 Forestry Experiment Stations(F.E.S.) in Korea are reported herein. A total of 35 species under 20 genera, 11 families, and 2 orders were identified from the soils around the roots of 119 tree species and amongst them, Xiphinema insigne is unrecorded species for Korea and Geocenamus sp. is a new species. Tylenchorhynchus claytoni, which showed the highest detection rate (D.R.) from all F.E.S., except Nambu F.E.S, was the dominant species among the nematodes associated with saplings. The D.R. of T. claytoni was the highest in Ch’ungnam F.E.S. by 100% from 15 saplings sampled, followed by 87.5% in Kangwon, 66.6% in Kyongbuk, 58.3% in Cheonbuk, 48.1% in Ch’ungbuk, 41.3% in Kyongki, and 40% in Cheonnam F.E.S. Other important nematode species which showed very high densities by stations are; Criconemella morgensis (D.R.: 37.5%), Helicotylenchus digonicus (D.R. : 35%), Pararotylenchus pini (D.R.: 37%), Tylenchorhynchus nudus (D.R.: 37.9%), Criconemella informis (D.R.: 27.5%), and Meloidogyne sp. (D.R.: 12.5), from Chunbuk, Chunnam, Ch’ungbuk, Kyongki, and Kangwon F.E.S., respectively.

• 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.

• Korean Journal of Plant Taxonomy
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• v.44 no.1
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• pp.33-38
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• 2014

Three unrecorded species, Carex chungii Z. P. Wang, C. tsushimensis (Ohwi) Ohwi, C. multifolia Ohwi were found in Korea. C. chungii Z. P. Wang was found in Is. Wan and Is. Geogeum, Jeollanam-do and Namhae, Gyeongsangnam-do. This species is distinguished from C. leuchoclora Bunge by achenes constricted above in the middle. C. tsushimensis (Ohwi) Ohwi was found in Is. Gageo, Sinan, Jeollanam-do. This species is distinguished from C. conica Boott by pistillate scales with a long arista. C. multifolia Ohwi was found in Haenam, Jeollanam-do. This species is distinguished from C. sachalinensis var. sikokiana (Franch. & Sav.) Ohwi by caespitose and leaf of light gray. We provide here their description, illustration, photographs and the key of related species.

• Korean Journal of Plant Taxonomy
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• v.43 no.4
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• pp.274-284
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• 2013

This study presents a survey on the bryophytes in Dongbaek-dongsan located at Seonheul Gotjawal on the north-eastern face of Mt. Halla in Jeju Island, Korea. A total of 85 taxa belonging to the Bryophyta (22 families 44 genera 62 species), Marchantiophyta (12 families 16 genera 23 species) were found. Among them, 3 moss species, Diphyscium perminutum Takaki, Racomitrium japonicum Dozy & Molk., and Isopterygium minutirameum (M$\ddot{u}$. Hal.) A. Jaeger. were new additions to the bryophyte flora of Korea. The liverwort index was 27.0%. Predominant life-form was weft. The rates for the bryophytes dominating in mesic to hygric sites were higher than for the bryophytes mainly observed in xeric habitats. We considered that the composition and distribution of species are affected by the different environmental factors according to the evergreen broad-leaved forests, wetlands and exposed spaces. Moreover, the rocks were the substrate type that play a major role in providing the micro-habitats for bryophytes in this area. Particularly, the bryophytes of swamps in this area were very unique and various for its limited space and showed plant communities with mosaic spatial pattern, along with vascular plants. We suggest more detailed and comprehensive studies on the swamps where endemic fern Mankyua chejuense B. -Y. Sun, M. H. Kim & C. H. Kim inhabits to provide valuable information for the conservation and restoration of the species and habitats.

• The Korean Journal of Mycology
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• v.27 no.2 s.89
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• pp.158-163
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• 1999

Powdery mildew diseases previously unrecorded in Korea were noticed on four species of ornamental trees. Field observations on each disease were described and the causal fungi were identified. Powdery mildew of Symplocos chinensis for. pilosa was found to occur mildly, especially on plants growing in shade. The causal fungus was identified as Microsphaera nomurae U. Braun. Cornus florida was found to be infected with Microsphaera pulchra Cooke & Peck and supposed to be epidemic in nursery. Powdery mildew of Malus baccata occurred on young leaves and herbaceous stems in nursery. The causal fungus was classified as Podosphaera leucotricha (Ellis & Everh.) Salmon. Powdery mildew of Ulmus macrocarpa was found to occur in autumn and severe on young shoots. Uncinula kenjiana Homma was identified as the causal fungus.