• Title/Summary/Keyword: Wood rotting basidiomycetes

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Biological Activities of Culture Broth of Some Wood Rotting Basidiomycetes -Antimicrobial, plant growth regulatory, antitumor, and enzymatic activities- (목재부후성 담자균류 배양균사체의 생물활성 연구 -항균활성, 식물생장조절활성, 항암활성, 효소활성탐색-)

  • Cho, Soo-Muk;Yu, Seung-Hun;Shin, Gwan-Chull
    • The Korean Journal of Mycology
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    • v.24 no.1 s.76
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    • pp.17-24
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    • 1996
  • For screening of biological activities of culture broth of some wood rotting basidiomycetes, antimicrobial activity, plant growth regulating activity, antitumor activity, and various enzyme activities were checked. Coriolus versicolor 5129 and C. pubescens 5131 strains showed inhibition activity against gram-positive bacteria and Lenzites betulina 8029 strain showed the activity against gram-negative bacteria. L. betulina 8085 inhibited the growth of both bacteria and plant pathogenic fungi. All of tested basidiomycetes inhibited the germination and growth of radish and cabbage at concentration of 0.8ml/ml. Especially, Fomitopsis pinicolor 8059 and Fomitella fraxinea 8084 showed strong inhibition activity. In contrast, Bjerkandera adusta 8054 stimulated the growth of cabbage and radish at concentration of 0.4 and 0.2ml/ml. All polysaccharides from tested basidiomycetes showed anti-tumor activity against sarcoma 180 and the stronger antitumor activity was observed in L. betulina 8029 and unidentified 8058 strain. All tested basidiomycetes had also an ability to degrade cellulose and lignin.

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The Flora of Wood Rotting Basidiomycetes in Middle Part of Korea (한국(韓國) 중부지방(中部地方)에 분포(分布)하는 목재부후성(木材腐朽性) 담자균류(擔子菌類))

  • Cho, Soo Muk;Seo, Gun Sik;Shin, Gwan Chull
    • Korean Journal of Agricultural Science
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    • v.20 no.1
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    • pp.43-47
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    • 1993
  • Fruit bodies of the wood rotting basidiomycetes naturally grown in middle part of Korea were collected from August 1989 to May 1992 and identified to 24 genera and 31 species. Species diversity was differed little from areas, but index of species diversity was higher in Mt. Songni and Mt. Duckyu than that in other areas. The dominant species were Coriolus versicolor, Daedalea dickinsii, Daedaleopsis styracina, Lenzites betulina and Schizophyllum commune.

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Studies on the Antibiotic Constituents of Korean Basidiomycetes(IV). Preliminary examination of the mycelial cultures of the 17 basidiornycetous strains

  • Chung, Kyeong-Soo;Chung, Soo-Hyun;Kim, Byong-Kak
    • Archives of Pharmacal Research
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    • v.11 no.1
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    • pp.61-64
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    • 1988
  • To investigate the antibiotic constituents of Korean basidiomycetes the carpophores of the wood-rotting basidiomycetes were collected from several locations of Korea, and from them 17 mycelial strains were isolated on potato-dextrose-agar plates supplemented with tetracycline ($20\;{\mu}g/m{\ell}$. The isolated strains were shake-cultured in glucosepeptone-yeast extract medium and then the antibacterial activities of the culture filtrates were assessed by disc-plate method. Among them, 12 strains (70.6%) were active, and basidiomycete strain LMCB-109 (Daedalea quercina) and LMCB-116 showed potent activities against all the six bacterial target organisms including Serratia marcescens.

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Effect of Superoxide Dismutase and Low Molecular Mediators on Lignin Degradation

  • Leonowicz, Andrzej;Matuszewska, Anna;Luterek, Jolanta;Ziegenhagen, Dirk;Wojtas-Wasilewska, Maria;Hofrichter, Martin;Rogalski, Jerzy;Cho, Nam-Seok
    • Journal of the Korean Wood Science and Technology
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    • v.27 no.4
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    • pp.1-14
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    • 1999
  • As the biodegradation of wood constituents has been understood as a multi-basidiomycetes and enzymatic processes, this review will focus on the roles of low molecular compounds and radicals working in harmony with fungal enzymes. Wood rotting basidiomycete fungi penetrate wood, and lead to more easily metabolize carbohydrates of the wood complex. The white-rot fungi, having versatile enzymes, are able to attack directly the "lignin barrier". They also use a multi-enzyme system including so-called "feedback" type enzymes allowing for simultaneous degradation of lignin and carbohydrates. The multi-enzymes including laccase support the proposed route by explaining how the high molecular weight enzymes can function in the wood complex. These enzymes may function separately or cooperate each other. In addition, veratryl alcohol oxidase, cellobiose dehydrogenase, arylalcohol dehydrogenase, and particularly low molecular mediators and radicals have an important role in wood biodegradation. However, the possibility of other mechanism as well as other enzymes, as operating as feedback systems in the process of wood degradation, could not be excluded.

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