• 제목/요약/키워드: Cladosporium

검색결과 210건 처리시간 0.029초

Isolation and Antimicrobial Activity of Dichlororinated Bibenzyl Compound

  • Na, Young-Soon;Lee, Jae-Sook;Baek, Seung-Hwa
    • 동의생리병리학회지
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    • 제21권1호
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    • pp.231-234
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    • 2007
  • Dichlororinated bibenzyl compound (4) has been isolated from the New Zealand liverwort. This compound was elucidated using 1D/2D-NMR and mass spectral method. The compound (3) inhibited the growth of the Gram positive bacterium Bacillus subtilis ATCC 19659, (2 mm inhibition zone and 2 mm inhibition zone at 30 ${\mu}$g/disc), Candida albicans ATCC 14053, (2 mm inhibition zone and 2 mm inhibition zone at 30 ${\mu}$g/disc), and the dermatophytic fungi Trichophyton mentagrophytes ATCC 28185, (12 mm inhibition zone at 30 ${\mu}$g/disc) and Cladosporium resinae ATCC 52833 (2 mm inhibition zone at 30 ${\mu}$g/disc). This bibenzyl compound (4) exhibited antimicrobial activity.

항진균성 활성물질을 생성하는 토양방선균의 분리 (Isolation and Selection of Actinomycetes Producing Anti-fungal Materials)

  • 권혁구;강병곤;이장훈
    • Environmental Analysis Health and Toxicology
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    • 제18권2호
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    • pp.131-136
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    • 2003
  • Anti-fungal materials producing bacteria were isolated from soil by bennett's agar and actinomycete isola-tion agar medium. The bacterla were identified as synonym of Actinomycetes. Based on the data obtained from its morphological and colony characteristics. The medium for production of anti-fungal materials was YEME (yeast extract 4 g, malt extract l0g, glucose 4 g, D.W 1ι, pH 7.0${\pm}$0.2). The culture conditions were 30$^{\circ}C$, 7 days and 200 rpm in shaking incubator. No. 13, No. 15 and No.28 strains were produced anti-fungal materials against fungal plant pathogens. Specially, The No. 28 strain showed a powerful biopesticide activity and broad spectrum effects of anti -fungal materials on Collectrichum coccodes, Botrytis cinerea, Cladosporium cucumerinum, Didymella bryoniae.

Oidiopsis taurica (L v.) Arnaud (=Leveillula taurica)에 의한 토마토 흰가루병 발생 (Occurrence of Powdery Mildew on Tomato Caused by Oidiopsis taurica (L v.) Arnaud (=Leveillula taurica) in Korea)

  • 강수웅;권진혁;신원교;김희규
    • 한국식물병리학회지
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    • 제11권4호
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    • pp.380-382
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    • 1995
  • Yellow spot or blotch symptoms on the upper surface of leaf, without the production of velvet-like fungi on the lower surface of leaf as in the gray mold of tomato caused by Cladosporium fulvum, were observed in tomato (cv. Seokwang) plants in May, 1995, in a vinyl-house of the experimental plot of Gyeongnam Provincial Rural Development Administration, Chinju, Gyeongnam, Korea. We identified this disease as powdery mildew of tomato caused by Oidiopsis taurica (L v.) Arnaud (=Leveillula taurica), which was new to Korea. Conidia of the fungus were borne on uni- or bi-septated conidiophores which were developed through the stomata of the tomato leaf. The conidia were slender, clavate and variable in size (31~111.6$\times$13.1 ${\mu}{\textrm}{m}$). The fungal conidia isolated from tomato leaves were inoculated to tomato plants, and the occurrence of the same disease was confirmed based on the symptomatology and the morphology of the pathogen reisolated.

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다중이용시설 내 공기 중의 진균 분포 (Distribution of Airborne Fungi in the Public Facilities)

  • 고연자;공용우;이제만;고종명;김용희;제갈승
    • 환경위생공학
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    • 제22권4호
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    • pp.77-85
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    • 2007
  • Recently, there is increasing interest in indoor air pollution. Fungal spores are one of the pollutants that is the causes of hypersensitivity reactions, bronchial asthma, allergic rhinitis. This study was performed to assess the levels of fungi concentration in public facilities and airborne fungi were collected with the air sampler using DRBC(Dichloran rose bengal chloramphenicol) agar. It was found that airborne fungi concentration were related to the humidity and the people movement. 10 genera of fungi was isolated and identified and the most common culturable fungi were Penicillium, Cladosporium, and Aspergillus.

Biotransformation of Bioactive (-)-Mellein by a Marine Isolate of Bacterium Stappia sp.

  • Feng, Zhile;Nenkep, Viviane N.;Yun, Keum-Ja;Zhang, Dahai;Choi, Hong-Dae;Kang, Jung-Sook;Son, Byeng-Wha
    • Journal of Microbiology and Biotechnology
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    • 제20권6호
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    • pp.985-987
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    • 2010
  • The biological transformation of the bioactive dihydroisocoumarin, (-)-mellein, isolated from the marinederived fungus Cladosporium sp., was studied. The preparativescale culture of (-)-mellein with a marine isolate of a bacterium Stappia sp. resulted in the isolation of its oxidized metabolite, (3R,4S)-4-hydroxymellein. The stereostructure of the metabolite obtained was assigned on the basis of detailed physicochemical data analyses.

Phyllosphere and Phylloplane Fungi of Banana Cultivated in Upper Egypt and their Cellulolytic Ability

  • El-Said, A.H.M.
    • Mycobiology
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    • 제29권4호
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    • pp.210-217
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    • 2001
  • Seventy-three species and five varieties belonging to 36 genera were collected from leaf surfaces of banana plants on glucose and cellulose-Czapek's agar at $28^{\circ}C$. The results obtained from leaf surfaces(phyllosphere and phylloplane) were basically similar on the two types of media and the most common fungi were Alternaria, Aspergillus, Chaetomium, Cladosporium, Cochliobolus, Curvularia, Gibberella, Memnoniella, Mycosphaerella, Setosphaeria and Stachybotrys. The monthly counts of these fungi were irregularly fluctuated giving maxima at various months. Chaetomium globosum was in the top of fungi in producing both exo- and endo-$\beta$-l,4-glucanases among the 34 tested isolates obtained from leaves(phylloplane) on cellulose-Czapek's agar. Maximum production of these enzymes by C. globosum was 6 and 8 days after incubation at $25^{\circ}C$ with culture medium containing wheat bran as a carbon source and peptone as a nitrogen source and initially adjusted to pH 6.

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Broiler양계사내(養鷄舍內)의 진균총(眞菌叢) (Mycoflora in Broiler Houses)

  • 최원필;여상건;이헌준
    • 대한수의학회지
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    • 제24권1호
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    • pp.36-39
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    • 1984
  • The present survey was undertaken to determine the mycoflora of broiler houses. Attempts were made to isolate and identify fungi in the dust, feed, litter and water from 21 broiler houses. A total of 166 isolates of fungi was identified as yeast spp. (44%), Aspergillus spp. (30.7%), Verticillium spp. (7.2%), Penicillium spp. (3.6%), Paecilomyces spp. (3.6%), Scopulariopsis spp. (3.0%), Cephalosporium spp. (3.0%), Chrysosporium spp. (2.4%), Cladosporium spp. (1.8%) and Absidia spp. (0.6%). Isolated of Aspergillus(A) spp. and Penicillium(P) spp. were identified as A. fumigatus, A. flavus, A. terreus, A. nidulans, A. niger, P. citrinum and P. palitan. Fungal contamination of the broiler houses predominated in the dust. The important point is that must of the isolates were pathogenic fungi.

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Synthesis and Biological Activity of Geranyloxy Compounds

  • Oh, Hyun-Ju;Oh, In-Kio;Na, Young-Soon;Kim, Myung-Ju;Baek, Seung-Hwa
    • 동의생리병리학회지
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    • 제19권3호
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    • pp.792-796
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    • 2005
  • Disk assays on the compounds (10 and 12) showed both to have antifungal activity against the dermatophytic fungus Trichophyton mentagrophytes ATCC 28185, (1 and 3 mm inhibition zones at $60\;{\mu}g/disc$), but not against the Gram-positive bacterium B. subtilis or the Gram-negative bacteria Escherichia coli and Pseudomonas aeruginosa or fungi Cladosporium resinae and Candida albicans. However, the compound (13) did not show against antifungal activity. The geranyloxy compounds (10, 12, and 13) were cytotoxic to P388 murine leukaemia cells ATCC CCL 46 P388D1, ($IC_50$ >6,250 ng/mL at $7.5\;{\mu}g/disc$). These results suggest that The geranyloxy compounds possesses antimicrobial and antitumor activities.

Antimicrobial Activity of Chlororinated Bibenzyl Compounds

  • Na, Young-Soon;Baek, Seung-Hwa
    • 동의생리병리학회지
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    • 제20권3호
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    • pp.719-723
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    • 2006
  • Chlororinated bibenzyl compounds (1 and 2) inhibited the growth of the Gram positive bacterium Bacillus subtilis ATCC 19659, (2 mm inhibition zone and 2 mm inhibition zone at $30{\;}{\mu}g/disc$), Candida albicans ATCC 14053, (2 mm inhibition zone and 2 mm inhibition zone at $30{\;}{\mu}g/disc$), and the dermatophytic fungi Trichophyton mentagrophytes ATCC 28185, (3 mm inhibition zone and 7 mm inhibition zone at 30 Ug/disc) and Cladosporium resl'nae ATCC 52833 (1 mm inhibition zone at $30{\;}{\mu}g/disc$).

Anti-fungal materials Produced by Streptomyces albogriseus Isolated in Korean soil

  • Kwon, Hyuk-Ku;Kang, Byeong-Kon;Lee, Jang-Hoon
    • 한국환경보건학회:학술대회논문집
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    • 한국환경보건학회 2004년도 International Conference Global Environmental Problems and their Health Consequences
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    • pp.165-168
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    • 2004
  • An anti-fungal material producing actinomycete was isolated from domestic soil. This strain was identified as Streptomyces albogriseus by 16S rDNA sequence. YEME (yeast extract 4g, malt extract 10g, glucose 4g, D.W 1l , pH $7.0{\pm}0.2$) medium was used for production of anti-fungal materials. S. albogriseus was cultured in a shaking incubator for 2 weeks at 150 rpm and $25{\pm}1^{\circ}C$. An anti-fungal material produced by S. albogriseus was identified at 340nm by uv/vis- spectrometer and it showed powerful anti-fungal activity. This is the first report that secondary metabolite produced by S. albogriseus showed an activity against phytopathogenic fungi such as Collectrichum coccodes, Botrytis cinerea, Cladosporium cucumerinum, Didymella bryoniae.

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