• Title/Summary/Keyword: Total fungi

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A study on the microbiological distribution on the transmitters of public telephone (공중전화기의 미생물학적 분포에 관한 연구)

  • 최한영
    • Journal of environmental and Sanitary engineering
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    • v.12 no.1
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    • pp.1-8
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    • 1997
  • The microbial distribution on 115 transmitter of telephone in 5 site were studied during the period Mar to May 1996. The result were follows: 1. The public telephone at Kangnam terminal showed highest contamination of total bacteria (1.5 $\times $ 10$^{4}$/cm$^{2}$ and the telephone at home showed lowest contamination at the mean 4.6/cm$^{2}$ 2. The most frequent bacteria was staphylococcus epidermides and staptylococcus aureus which is pathogen of food poison was frequently isolated. 3. The public telephone at Seoul showed the highest contamination of fungi and the telephone at home showed lowest contamination of Fungi 4. In fungi 631 strains of 16 species were isolated that of highest frequency is confirmed to be Asperillus fumigatus which is pathogen of Aspergillosis, Nigar and Penicillium spp. were frequently isolated.

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

  • Choi, Won-pil;Yeo, Sang-geon;Lee, Hun-jun
    • Korean Journal of Veterinary Research
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    • v.24 no.1
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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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Diversity of Endophytic Fungi Isolated from Leaves of Coniferous Trees on Mt. Minjuji, Korea (민주지산에 서식하는 침엽수의 잎에서 분리한 내생균의 다양성)

  • Kim, Chang-Kyun;Eo, Ju-Kyeong;Eom, Ahn-Heum
    • The Korean Journal of Mycology
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    • v.42 no.2
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    • pp.174-177
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    • 2014
  • We investigated the biodiversity of endophytic fungi isolated from leaves of three coniferous species (Pinus densiflora, P. koraiensis, Larix kaempferi) on Mt. Minjuji, Korea. A total of 39 isolates were discovered from 17 host plants and their homology with the ITS region was searched. They were then identified as 22 taxa; 64% of fungal isolates belong to Sordariomyetes, 33% of isolates to Leotiomycetes, and 3% isolates to Agaricomycetes.

Keratinolytic Activity of Five Aspergillus Species Isolated from Poultry Farming Soil in Korea

  • Kim, Jeong-Dong
    • Mycobiology
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    • v.31 no.3
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    • pp.157-161
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    • 2003
  • Various soil samples were collected from twenty-four areas of ten different poultry farms in Korea and screened for prevalence of keratinolytic fungi. Fourteen species of feather-associated fungi belonging to ten genera Acremonium, Alternaria, Aspergillus, Cladosporium, Curvularia, Fusarium, Monascus, Mucor, Penicillum, and Verticillium isolated from poultry soils were grown on keratin medium. Especially, Aspergillus spp. populations associated with the soil sample is $1{\times}10^5$ cfu/g. A. flavus, A. fumigatus, A. niger, A. nidulans, and A. terreus could utilize keratin of chicken feather and degrade it, producing sulphydryl-containing compounds detected as keratinase, cysteine and total proteins. Keratinolytic activities of five Aspergillus species also changed the pH of the medium more alkaline than those that were less keratinolytic.

The Zinc Transport Systems and Their Regulation in Pathogenic Fungi

  • Jung, Won Hee
    • Mycobiology
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    • v.43 no.3
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    • pp.179-183
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    • 2015
  • Zinc is an essential micronutrient required for many enzymes that play essential roles in a cell. It was estimated that approximately 3% of the total cellular proteins are required for zinc for their functions. Zinc has long been considered as one of the key players in host-pathogen interactions. The host sequesters intracellular zinc by utilizing multiple cellular zinc importers and exporters as a means of nutritional immunity. To overcome extreme zinc limitation within the host environment, pathogenic microbes have successfully evolved a number of mechanisms to secure sufficient concentrations of zinc for their survival and pathogenesis. In this review, we briefly discuss the zinc uptake systems and their regulation in the model fungus Saccharomyces cerevisiae and in major human pathogenic fungi such as Aspergillus fumigatus, Candida albicans, and Cryptococcus gattii.

Fungi Associated with the Hairs of Goat and Sheep in Libya

  • El-Said, A.H.M.;Sohair, T.H.;El-Hadi, A.G.
    • Mycobiology
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    • v.37 no.2
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    • pp.82-88
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    • 2009
  • The mycoflora on the hair in 25 samples of each of goats and sheep collected from Libya was analyzed using two isolation methods at $25^{\circ}C$. Seventy species and 3 varieties belonging to 31 genera were collected from the two substrates. The hairs of sheep were polluted with fungi than goat, contained high total counts and number of genera and species. Two species of true dermatophytes were isolated namely Trichophyton rubrum and T. terrestre. Several keratiophilic species were isolated of which Chrysosporium indicum, C. keratinophilum and C. tropicum were the most prevalent. The commonest saprophytes in order of frequency were members of the genera Aspergillus, Penicillium, Emericella, Alternaria and Cochliobolus.

Diversity and Seasonal Variation of Endophytic Fungi Isolated from Three Conifers in Mt. Taehwa, Korea

  • Kim, Chang-Kyun;Eo, Ju-Kyeong;Eom, Ahn-Heum
    • Mycobiology
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    • v.41 no.2
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    • pp.82-85
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    • 2013
  • The needled leaves of three conifer species were collected in Mt. Taehwa during different seasons of the year. Total 59 isolates and 19 species of endophytic fungi were isolated from the leaves and identified using morphological and molecular characteristics. As a result, Shannon index was different in its host plant; Larix kaempferi had a highest value of species diversity. According to the sampling season, 9 species of 19 species were isolated during fall season. The results suggest that the existing of host plant and sampling season are major factors of distribution of endophytic fungi.

Distribution and Diversity of Saprophytic, Mycorrhizal and Parasitic Higher Fungi in Kwangnung Experimental Forest in Korea (광릉시험림(光陵試驗林)의 부생성(腐生性), 균근성(菌根性) 및 기생성(寄生性) 고등균류(高等菌類)의 분포(分布)와 다양성(多樣性)에 관(關)한 연구(硏究))

  • Lee, Kyung Joon;Miller, Orson K. Jr.;Kim, Yang Sup
    • Journal of Korean Society of Forest Science
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    • v.76 no.4
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    • pp.376-389
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    • 1987
  • Higher fungi (Basidiomycetes) were collected from forest stands of Kwangnung Experimental Forest, Kwangnung, Kyonggido, during the summer and fall seasons of 1976, 1984, 1985 and 1986. A total of 257 species and varieties in 104 genera were identified. Saprophytic fungi accounted for 135 species in 75 genera while mycorrhizal fungi accounted for 120 species in 28 genera. Two parasitic species were collected and they were root parasites. Among the mycorrhizal species Amanita, Russula, Lactarius, and species in the Boletaceae were the dominant taxa. The mycorrhizal fungi appear to be an important component in the essential elements needed for forest management in Korea. A reevaluation of the higher fungi previously described in Korea was made and we report 77 higher fungi previously undescribed from Korea. This is from a single experimental forest and suggests that there are many unreported higher fungi which play an important role in Korean forests.

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A Study on the Biological Hazards Exposure for Waste Handling Industries in Korea (국내 폐기물 취급업의 생물학적 인자 노출실태)

  • Park, Hyunhee;Park, Hae Dong;Lee, Inseop
    • Journal of Korean Society of Occupational and Environmental Hygiene
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    • v.22 no.4
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    • pp.265-275
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    • 2012
  • Objectives: The aim of this study was to investigate the distribution patterns and exposure concentrations of biological hazards in waste handling industries. Methods: We selected 3 recyclable waste sorting plants(RWS), 2 food recycling plants(FR), 1 landfill area(LA) and 1 waste incineration plant(WI). Total airborne bacteria and fungi were measured with single stage impactor and gelatin filters. Endotoxin and glucan were measured with polycarbonate filters in total and respirable dust. Results: The geometric mean of airborne bacterial concentration was the highest in FR($3,273CFU/m^3$), followed by LA, RWS, and WI as 1,334, 934, and $860CFU/m^3$. The fungal concentrations were 6,031, 5,052, 3,307, and $713CFU/m^3$ in RWS, WI, FR, and LA, respectively. By process, WI pit showed the highest concentrations of bacteria, fungi, and endotoxin, followed by inside of bulldozer in LA. The indoor to outdoor ratios of bacteria, fungi, endotoxin and glucan were 2.3, 4.0, 2.3, and 5.0 in RWS, 29.5, 4.9, 7.6, and 5.0 in FR, 5.3, 8.7, 26.8, and 9.5 in WI, respectively. Conclusions: We found that biological hazards, specifically bacteria in FR, fungi in RWS and endotoxin in WI pit and bulldozer at LA, should be controlled to prevent worker's respiratory diseases.

Impacts of Soil Texture on Microbial Community of Orchard Soils in Gyeongnam Province

  • Kim, Min Keun;Sonn, Yeon-Kyu;Weon, Hang-Yeon;Heo, Jae-Young;Jeong, Jeong-Seok;Choi, Yong-Jo;Lee, Sang-Dae;Shin, Hyun-Yul;Ok, Yong Sik;Lee, Young Han
    • Korean Journal of Soil Science and Fertilizer
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    • v.48 no.2
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    • pp.81-86
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    • 2015
  • Soil management for orchard depends on the effects of soil microbial activities. The present study evaluated the soil microbial community of 25 orchard (5 sites for sandy loam, 7 sites for silt loam, and 13 sites for loam) in Gyeongnam Province by fatty acid methyl ester (FAME) method. The average values for 25 orchard soil samples were $270nmol\;g^{-1}$ of total FAMEs, $72nmol\;g^{-1}$ of total bacteria, $34nmol\;g^{-1}$ of Gram-negative bacteria, $34nmol\;g^{-1}$ of Gram-positive bacteria, $6nmol\;g^{-1}$ of actinomycetes, $49nmol\;g^{-1}$ of fungi, and $7nmol\;g^{-1}$ of arbuscular mycorrhizal fungi. In addition, silt loam soils had significantly low ratio of cy17:0 to $16:1{\omega}7c$ and cy19:0 to $18:1{\omega}7c$ compared with those of loam soils (p < 0.05), indicating that microbial activity increased. The average soil microbial communities in the orchard soils were 26.7% of bacteria, 17.9% of fungi, 12.6% of Gram-negative bacteria, 12.5% of Gram-positive bacteria, 2.5% of arbuscular mycorrhizal fungi, and 2.2% of actinomycetes. The soil microbial community of Gram-negative bacteria in silt loam soils was significantly higher than those of sandy loam and loam soils (p < 0.05).