• 한국식품과학회지
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• 제23권5호
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• pp.572-577
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• 1991

국내에서 재래적인 방법에 의하여, 생산 시판되고 있는 전통 발효식품인 메주(12종), 된장(28종) 및 간장(28종)을 수거하여 이들로부터 OA를 생성하는 fungi를 분리 및 동정하였고, 동정된 fungi 중 OA를 가장 많이 생성하는 4 isolates을 선택하여 이들의 생육과 OA 생성 특성을 조사하였다. 각 시료에서 불리해낸 222 fungi 중 OA를 생성하는 것은 39 isolates로, 곰팡이의 OA 생성률이 17.7%(39/222)이며, 이들 중 가장 많은 OA를 생성하는 4 Fungi는 Penicillium spp., Phialotubus microsporus, Eupenicillium lapidosum 및 Paecilomyces variotti이었다. 이들 균주는 $a_{w}$ 0.99에서 가장 잘 자랐고 $a_{w}$ 0.85에서 OA의 생성이 중지되었다. 또한 $30^{\circ}C$에서 억제되었다. Toxin 생성 최적 pH는 Paecilomyces variotti을 제외하고는 6.5이었으며 pH에 의해서 toxin 생성은 $a_{w}$와 달리 영향을 크게 받지 않았다.

• Asian-Australasian Journal of Animal Sciences
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• 제12권1호
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• pp.104-112
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• 1999

Since the anaerobic rumen fungi were discovered in the rumen of a sheep over two decades ago, they have been reported in a wide range of herbivores fud on high fibre diets. The extensive colonisation and degradation of fibrous plant tissues by the fungi suggest that they have a role in fibre digestion. All rumen fungi studied so far are fibrolytic. They produce a range of hydrolytic enzymes, which include the cellulases, hemicellulases, pectinases and phenolic acid esterases, to enable them to invade and degrade the lignocellulosic plant tissues. Although rumen fungi may not seem to be essential to general rumen function since they may be absent in animals fed on low fibre diets, they, nevertheless, could contribute to the digestion of high-fibre poor-quality forages.

• Mycobiology
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• 제29권2호
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• pp.100-103
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• 2001

Chaerophylline and berberine hydroxide, both being alkaloids, isolated from Corydalis chaerophylla and C. longipes respectively were assayed against spore germination of some fungi, e.g. Alternaria solani, A. brassicola, A. brassicicola, Helminthosporium penniseti, Helminthosporium sp., Heterosporium sp., Curvularia penniseti, C. maculens and C. palliscens. While chaerophylline inhibited spore germination of most of the fungi at 1000 ppm, being also effective at 50, 100, 200 and 500 ppm, berberine hydroxide was significantly effective at much lower concentration, i.e., 400 ppm against several fungi. This compound was also effective against some fungi at 50, 100, 150, 200 ppm. There was 100% inhibition of spore germination in several fungi at highest concentration of both the compounds. Some of the fungi showed similar results even at lower concentrations.

• 생명과학회지
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• 제14권6호
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• pp.1003-1008
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• 2004

11 plant essential oils are screened in vitro for their antifungal activities against Botrytis cinerea, Fusarium oxysporum and Rhizoctonia solani, which are causative agents of serious plant diseases. The radial growth of the test fungi were reduced in response to the oils. Among them, the essential oil from the bark of Cinnamomum zeylanicum inhibited 3 tested fungi growth, strongly, followed by those of oregano and thyme. The major constituents of the three essential oils, cinnaldehyde, carvacrol and thymol were tested for their effects on the fungi. From the results obtained, cinnamaldehyde, the major constituents of C. zeylanicum bark esential oil, has potential to be developed as a biopesticide for controlling phytopathogenic fungi causing serious damages on the important crops cultivated in Korea.

• Mycobiology
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• 제38권4호
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• pp.238-248
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• 2010

This review provides background information on the importance of bioremediation approaches. It describes the roles of fungi, specifically white rot fungi, and their extracellular enzymes, laccases, ligninases, and peroxidises, in the degradation of xenobiotic compounds such as single and mixtures of pesticides. We discuss the importance of abiotic factors such as water potential, temperature, and pH stress when considering an environmental screening approach, and examples are provided of the differential effect of white rot fungi on the degradation of single and mixtures of pesticides using fungi such as Trametes versicolor and Phanerochaete chrysosporium. We also explore the formulation and delivery of fungal bioremedial inoculants to terrestrial ecosystems as well as the use of spent mushroom compost as an approach. Future areas for research and potential exploitation of new techniques are also considered.

• 한국가구학회지
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• 제24권3호
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• pp.257-262
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• 2013

This study was carried out to investigate the susceptibility of wood-based composite panels exposed to mould and sap-stain fungi. Five wood deterioration fungi (three mould fungi, two sap stain fungi) were inoculated into two types of commercial wood-based composite panels (medium density fiberboard and particleboard), which have three class of formaldehyde emission. All wood-based composite panels were more or less susceptible to mould and sap stain fungi. The attacking mode of the fungi was highly dependent on formaldehyde emission. This study indicates that all wood-based composite panels, specially low formaldehyde emission class panels should be considered to prevent fungal deterioration when they are used for exterior and humid interior applications.

• 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.

• Mycobiology
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• 제35권4호
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• pp.205-209
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• 2007

Ergosterol involves in fungal cell growth as a major component in fungal cell membranes. It can be an indicator that shows the fungal activity, and its content depends on the fungal strains, culture, growth conditions and so on. In this study, fungal activities and growth patterns of three white-rot fungi strains isolated in Korea were evaluated by determination of ergosterol contents during the incubation. Wood decay test and chemical analyses of wood were also performed to verify the relationship between fungal activity and wood degrading capacity of white-rot fungi for 60 days. In the results of experiments, it is considered that the test strains selectively degrade large amount of lignin in wood at the early stage of decay. Especially, Phanerochaete chrysosporium showed the best capability on selective degradation of lignin among the test fungi. It is suggested that the determination of ergosterol content in the fungal culture during the incubation is the simple and effective screening method of white-rot fungi for the application to biopulping of wood.

• 한국임상수의학회지
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• 제21권1호
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• pp.35-44
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• 2004

This study was performed to examine the mycological features of canine skin. A total of 50 dogs with skin lesions were examined for dermatology from October, 2000 to April, 2001. The isolation rates of dermatophytes, yeast, filamentous fungi and superficial fungi were 36.4%, 13.5%, 35.3% and 13.6%. The dermatophytes isolated in dogs were Microsporum canins and Trichophyton mentagrophytes were 75% and 25%. The yeast and superficial fungi isolated in dogs were Candida albicans, Rhodntorula minnata, Candida ceferrii and Malassezia spp. were 16.7%. 16.7%, 16.7% and 50%. The filamentous fungi by Aspergillus funigatus, Aspergillus niger, Penicillum spp., Alternaria spp. were 12.5%, 12.5%, 50%, and 25%. In determine if polymerase chain reaction (PCR) could be applied for diagnosis of dermatophytes, yeast and filamentous fungi, control and clinical samples were tested. The size of specific PCR product in agarose gel was 340 bp for dermatophytes and 210 bp for yeast and filamentous fungi, respectively.

• Mycobiology
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• 제39권4호
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• pp.313-316
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• 2011

The ambrosia beetle, Platypus koryoensis, is a serious pest of oak trees in Korea. In this study we investigated filamentous fungi present in the body of the beetle. Fourteen genera of filamentous fungi belonging to Ascomycota and Basidiomycota were isolated. Among the isolated fungi, some were able to produce wood degrading enzymes. This is first report of fungi associated with P. koryoensis.