• Title/Summary/Keyword: Schizopora

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Taxonomic Study on Korean Schizopora

  • Lim, Young-Woon;Jung, Hack-Sung
    • Mycobiology
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    • v.29 no.4
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    • pp.194-197
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    • 2001
  • Schizopora paradoxa is a white rot fungus showing great variation in hymenophoral configuration. It has been often treated as close to Irpex or Hyphodontia and frequently confused with S. flavipora which was identified as an unrecorded species in Korea. Distinct features including sizes of basidia and basidiospores as well as hymenophoral shape make S. paradoxa differ from S. flavipora. Remarkable characters of hymenophores and microscopic structures are described and their significance is discussed for the taxonomy of Korean Schizopora.

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Biodegradation of 4-t-Octylphenol by Basidioradulum molare and Schizopora paradoxa and Estrogenecity Reduction of its Metabolites (옥틸페놀(4-t-Octylphenol)의 Basidioradulum molare와 Schizopora paradoxa에 의한 분해 및 에스트로겐성 저감효과)

  • Lee, Soo-Min;Ku, Bon-Wook;Lee, Jae-Won;Choi, Don-Ha;Jeung, Eui-Bae;Choi, In-Gyu
    • Journal of the Korean Wood Science and Technology
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    • v.32 no.4
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    • pp.27-35
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    • 2004
  • Recalcitrant 4-t-Octylphenol used as a surfactant was subjected to the biodegradation with wood rot fungi, Basidioradulum molare and Schizopora paradoxa. Two fungi were grown in the culture medium containing various concentrations of 4-t-Octylphenol in order to investigate their resistance against 4-t-octylphenol Schizopora paradoxa was reached to the full growth within 14 incubation days in the concentration of more than 200 ppm of 4-t-Octylphenol, while Basidioradulum molare showed the inhibitory mycelium growth as the concentration was increased Schizopora paradoxa and Basidioradulum molare biodegraded 95% and 36% of initial concentration of 4-t-Octylphenol at first incubation day, respectively. However, the biodegradation capability reached to more than 95% after 3 incubation days. During the biodegradation of 4-t-Octylphenol, the activity of manganese dependent peroxidase was induced by the addition of 4-t-Octylphenol in the culture medium of Schizopora paradoxa, but that of laccase was maximal before the addition. The reduction of estrogenecity was assayed by MCF-7 cell proliferation test and measurement of pS2 mRNA expression. The level of pS2 mRNA was decreased down to the level of baseline at first incubation day. Also, estrogenecity of 4-t-Ocrylphenol completely disappeared after treatment with supernatant by Schizopora paradoxa and Basidioradulum molare from first incubation day of culture down to the levels of vehicle.

Phylogenetic Study of Ganoderma applanatum and Schizopora paradoxa Basd on 5S rRNA Sequences (5S rRNA 염기서열에 으한 잔나비걸상과 좀구멍버섯의 계통학적 연구)

  • Kim, Hak-Hyun;Jung, Hack-Sung
    • Korean Journal of Microbiology
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    • v.32 no.3
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    • pp.177-181
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    • 1994
  • The sequences of the cytoplasmic 5S rRNAs(EMBL accession number X73589 and X73890) from two polupores, Ganoderma applanatum and Schizopora paradoxa, were determined by the direct chemical method for sequencing RNA and compared to the sequences of 9 reported mushrooms. 5S rRNAs of Ganoderma applanatum and Schizopora paradoxa consisted of 118 bases and fit the secondary structure model of the 5S rRNAs of basidiomycetes proposed by Huysmans et al. Based on Kimura’s K_nuc values, the closest fungus to Ganoderma applanatum was Ceratobasidium cornigerum and the one to Schizopora paradoxa was Bjerkandera adusta. When the secondary structures of 5S rRNAs of 11 mushrooms were compared the base substitution occurred at helix regions more than at loop regions. When a phylogenetic tree was constructed using the Neighbor program of the PHYLIP package, it partially discriminated and separated the mushrooms of the Hymenomycetes by the order.

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Taxonomic Status of Xylodon in Korea and Proposal of Korean Names

  • Yoonhee Cho;Young Woon Lim
    • The Korean Journal of Mycology
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    • v.50 no.4
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    • pp.343-345
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    • 2022
  • Following the taxonomic reassignment of Schizopora and some Hyphodontia species into Xylodon, we confirmed nine Korean species of Xylodon in a previous study. In the present study, we propose Korean names for these Xylodon species according to the Principles of the Mycological Terminology Review Committee of The Korean Society of Mycology.

Correlative Production of Mn-Peroxidase and Glucose Oxidase Depending on the Culture Condition of Schizopora paradoxa (좀구멍버섯균의 배양조건에 따른 Mn-Peroxidase와 Glucose Oxidase의 생성조절)

  • Lee, Sang-Yoon;Shin, Hyeon-Dong;Kim, Kyu-Joong
    • The Korean Journal of Mycology
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    • v.22 no.4
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    • pp.325-331
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    • 1994
  • White-rot fungus, Schizopora paradoxa did not produce Mn-peroxidase and glucose oxidase without manganese. But, in high concentration of manganese (40 ppm), the activities of both enzymes were higher than those in basal concentration of manganese (11.15 ppm). Unlike the activities of the enzymes, mycelial mass was the same level as the control culture (11.15 ppm manganese) through out the culture period, depending on the concentration of manganese. The same experiments were carried out for the effect of copper and veratryl alcohol added to the culture. The results were not consistent dependent on the concentration of copper and veratryl alcohol, respectively. The involvement of cAMP in the correlative production of MNP and GOX was investigated. In this study, addition of atropine to the culture resulted in a concomitant inhibition of production of MNP and GOX, depending on the concentration of inhibitor added.

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The Wood-rotting Fungal Flora of Three Islands in the Yellow Sea, Korea

  • Kim, Chang-Mu;Lee, Jin-Sung;Jung, Hack-Sung;Lim, Young-Woon
    • Mycobiology
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    • v.37 no.2
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    • pp.147-151
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    • 2009
  • The wood-rotting fungi of three Korean islands in the Yellow Sea, Soyeonpyung-do (SY), Oeyeon-do (OY), and Gageo-do (GG), were investigated from October 2004 to November 2005. During four sampling trips on each island, a total of 46, 44, and 44 specimens were collected from SY, OY, and GG, respectively. The identified wood-rotting fungi from SY included 29 species of 22 genera and nine families; OY had 31 species of 26 genera and 10 families; and GG had 34 species of 27 genera and 11 families. The majority of the fungi were in the Polyporaceae, which was represented by 23 genera and 30 species. Auricularia polytricha, Daedaleopsis tricolor, Daldinia concentrica, Hymenochaete cinnamomea, Hymenochaete yasudai, Hyphoderma setigerum, Lopharia mirabilis, Schizopora paradoxa, and Trametes versicolor were collected from all three islands.

Fundamental Studies on the Wood Decay(II) - Physiological and Physicochemical Characteristics of the White Rot Fungi in Korea - (목재부후(木材腐朽)의 기초적(基礎的) 연구(硏究)(II) - 주요(主要) 백색부후균(白色腐朽菌)의 부후(腐朽) 생리(生理) 및 물리(物理)·화학적특성(化學的特性) -)

  • Lee, Dong-Heub;Choi, Don-Ha;Yoon, Seung-Lak;Sohn, Seung-Hyun
    • Journal of the Korean Wood Science and Technology
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    • v.20 no.4
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    • pp.49-56
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    • 1992
  • Seven white rot fungi (Irpex lactenis, Coriolus hirsutus, Lopharia mirabilis, Schizopora paradoxa, Ganoderma lucidum, Pleurotus ostreatus and Pycnoporus coccineus) native to Korea and two famous exotic lignin degradable white rot fungi (Coriolus versicolor and Phanerochaete chrysosporium) were investigated to clarify their physiological and physicochemical characteristics on white-rotted wood blocks. G. lucidum degraded wood blocks more seriously than those by exotic lignin-degrading fungi, C. versicolor and P. chrysosporium, but only slightly decreasecl the strength of wood which was compared to the weight loss, persumably on the account of its small use of cellulose when attacking wood. It is quite interesting to note that the holocellulose degradation rate of G. lucidum was also higher than any of the other tested fungi. The order of fungi, according to the lignin-decomposing rates, was G. lucidum>P. coccineus>C. versicolor>S. paradoxa>P. chrysosporium>L. mirabilis>P. ostreatus>C. hirsutus>I. lactenis. The lignin degradation of G. lucidum and P. coccineus which were collected in Korea was greater than that of C. versicolor and P. chrysosporium. If holocellulose degradation is not considered. G. lcidum has the merit of actual application in biomass conversion due to linin removal.

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