• Title/Summary/Keyword: mycology

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Classification of Cordyceps Species Based on Protein Banding Pattern (단백질 분석을 기초로한 Cordyceps속 동충하초의 분류)

  • Sung, Jae-Mo;Lee, Hyun-Kyung;Yoo, Young-Jin;Choi, Young-Sang;Kim, Sang-Hee;Kim, Yong-Ook;Sung, Gi-Ho
    • The Korean Journal of Mycology
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    • v.26 no.1 s.84
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    • pp.1-7
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    • 1998
  • In order to find relationship within and between entomopathogenic species, analysis of protein band pattern in mycelia of 25 isolates was conducted by UPGMA. The results allowed differentiation of three groups on 85% similarity coefficient. Similarity coefficient within C. militaris was $0.787{\sim}1.000$, C. kyushuensis was 0.958-1.000 and C. pruinosa was 0.993-1.000. C210 and C298 isolates which had somewhat immersed perithecia, comparable to other C. militaris isolates, had 91% similarity. C108, C225-1 and C228 isolates pathogenic on Lepidopterous larvae had 89% similarity. Closely related species to C. militaris were C. kyushuensis and C. pruinosa. And similarity between C. pruinosa and C. kyushuensis was 88%. Similarity between C. bifusispora formed conidia on media and Paecilomyces tenuipes was 89%. C. scarabaeicola pathogenic specifically on adult Scarabaeidae had 82% similarity with above two species. C118 identified as C. militaris showed different protein banding patterns.

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Antifungal Activity of Narceine Methyl Ester and Narceine Isolated from Corydalis longipes Against Some Phytopathogenic Fungi

  • Chowdhury, Dibyendu;Maurya, S.;Pandey, M.B.;Pandey, V.B.;Sarma, B.K.;Singh, U.P.
    • Mycobiology
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    • v.33 no.4
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    • pp.206-209
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    • 2005
  • Narceine methyl ester and narceine are potent alkaloids which were isolated from Corydalis longipes were found effective in vitro at very low concentration, i.e., $100{\sim}500\;ppm$ against spore germination of some test plant pathogenic fungi (Alternaria solani, A. tagetica, Cercospora abelmoschi, Curvularia maculans, Erysiphe cichoracearum, E. pisi, Fusarium udum, Helminthosporium oryzae, H. penniseti, Ustilago cynodontis). Among the test, phytopathogens the spores of F. udum, C. maculans and H. penniseti were highly sensitive at 200 ppm. However, spores of E. pisi, A. solani and A. tagetica were less sensitive at low concentration followed by other test fungi. Most of the fungi showed zero or nearly zero percent spore germination at 400 and 500 ppm.

Isolation of Auxotrophic Mutants from Basidiospores of Lentinus edodes (자외선(紫外線) 조사(照射)에 의한 표고버섯 담자포자(擔子胞子)의 영양요구성(營養要求性) 균주(菌株) 선발(選拔)에 관한 연구(硏究))

  • Yoo, Young-Bok;You, Chang-Hyun;Park, Yong-Hwan
    • The Korean Journal of Mycology
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    • v.13 no.3
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    • pp.185-189
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    • 1985
  • This experiment was undertaken to investigate considerable economy of labor for selection of auxotrophs from strains of Lentinus edodes. Various types of auxotrophs of this strain were isolated after treatment of basidiospores with ultraviolet light, and the highest proportion of putative mutants was also obtained from isolates irradiated to give 1.30 % survival.

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Effect of Sodium Chloride on Biology of Catenaria anguillulae

  • Gupta, R.C.;Singh, K.P.
    • Mycobiology
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    • v.30 no.4
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    • pp.219-224
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    • 2002
  • Growth studies of Catenaria anguillulae isolates in response to sodium chloride indicated that all the isolates grew in linseed oil-cake agar medium containing sodium chloride up to 1.0%. Medium with 1.5% sodium chloride, however, completely checked the growth of all the isolates. The size of zoosporangia greatly increased with abundant zoospore production in medium containing sodium chloride at 0.5%.

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.

Phenolic Acid Changes in Mycelia of Sclerotium rolfsii After Garlic and Onion Supplementation in a Broth Medium

  • Pandey, M.K.;Singh, D.P.;Singh, U.P.
    • Mycobiology
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    • v.33 no.3
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    • pp.137-141
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    • 2005
  • High performance liquid chromatographic (HPLC) analysis of mycelia of Sclerotium rolfsii grown in broth medium supplemented with garlic (Allium sativum) and onion (Allium cepa) was carried out to estimate qualitative and quantitative changes in phenolic acids. Several phenolic acids, such as gallic, chlorogenic; ferulic, o-coumaric and cinnamic acids were detected in varied amounts in mycelia grown on such media as compared to control. Phenolic acids represents a wide range of secondary metabolite found in the cells of plants and microbes including fungi. The growth characters of S. rolfsii in various supplements also varied from thin and transparent to thick and opaque.