• The Korean Journal of Mycology
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• v.22 no.1
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• pp.100-106
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• 1994

Fifty eight specimens of Ascomycotina were collected at Gwangneung, Mt. Weorak, Mt. Seorak, Mt. Paldal, Mt. Sungsu, Mt. Chiri and Mt. Odae from May, 1989 to October, 1992. These Ascomycotina were identified and classified into 6 orders, 10 families, 19genera, and 29 species. Among them, Peziza michelii(Boud.) Dennis, Tricharina gilva(Boud.) Ekblad, Jafnea fusicarpa (Gerard) Korf, Scutellinia kergulensis(Berk.) O. Kuntze, Vibrissea truncorum Fries, Ciboria amentacea (Balbis ex Fr.) Fuckel, Hypoxylon fragiforme(Per. ex Fr.) Kickx and Nectria episphaeria(Tode ex Fr.) Fries were newly recorded in Korea. These species were described and their Korean names were designated.

• Applied Microscopy
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• v.27 no.4
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• pp.453-460
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• 1997

The tissue types of stromata were observed intensively in four species of Hypoxylon under a scanning electron microscope (SEM). These stromata were sectioned with a freezing fracture method for observation. Several tissue types were recognized and stable in each species. This study presents the most intensive observation of tissue types of each layer of stromata. It will be useful for taxonomic criteria for the species level. However, the tissue types can not be major taxonomical criteria for the genus Hypoxylon.

• The Korean Journal of Mycology
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• v.34 no.2
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• pp.88-91
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• 2006

Attempts were made to investigate the conditions of mycelia of one low-temperature type strain and one high-temperature type strain of shiitake showing poor fruit-body formation in bed-log, and to survey harmful microorganisms formed on the log surface in Gapyung County, Korea. When tested the growing ability of mycelia, the low-temperature type strain showed ca. 1.1% decrease compared with preserved original strain. And, the high-temperature type one showed ca. 8.0% decrease. The growth of isolated mycelia was tested in sawdust medium. The high-temperature type strain showed ca. 10.8% decrease compared with original strain, and the low-temperature type one showed ca. 25.1% decrease. Weight reduction rate was investigated. The high-temperature strain showed ca. 20.1% decrease and the low-temperature one ca. 19.0%. When compared with non-treatment, original high-temperature type strain showed 107.0% decrease, the isolated high-temperature type strain 49.5%, original low-temperature type one 85.4%, isolated low-temperature type one 50.0%. As the results of confrontation culture, the high-temperature type strain and the low-temperature type one were same as the original ones, respectively. And, in the bed-logs, Hypoxylon truncatum, Coriolus versicolor, Inonotus xeranticus, Daedaleopsis tricolor, Graphostroma platystoma, two species of Myxomycetes, Trichoderma sp. Hypoxylon fragiforme, H. howeianum, and Nitschkia confertula were observed as harmful microorganisms, and the bed-logs were not in good condition.