• 제목/요약/키워드: Hair fungi

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부산 해운대 백사장에서 분리한 각질친화성 피부사상균의 분포 (A Distribution of Keratinophilic Fungi Isolated from the Soil of Haeundae Beach in Korea)

  • 김소진;김수정
    • 대한임상검사과학회지
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    • 제48권4호
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    • pp.343-347
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    • 2016
  • 각질친화성 진균(keratinophilic fungi)은 대부분 토양에 분포하면서 사람이나 동물의 피부에 감염되어 상재균으로 존재하고, 각질에 침입하여 백선이라는 피부질환을 유발하기도 한다. 전세계적으로 광범위하게 분포되어 있으나 발생 양상은 기후나 지리적인 요건 등에 뚜렷한 차이를 보인다. 이 균주들은 피부나 손톱, 모발 등에 풍부한 케라틴을 분해하면서 영양분을 공급받으며 증식한다. 이 논문에서는 우리나라 여름철 휴가지로 가장 많은 인파가 몰리는 해운대를 선택하게 되었으며 매년 많은 사람들이 모이는 해운대 백사장에 피부사상균의 존재와 검출되는 균의 종에 대해 조사하고 고찰하였다. 토양시료는 무작위로 총 100개를 채취하였고 채취된 검체는 hair-baiting technique을 이용하여 분석하였으며 100개 시료 중 21곳의 모래시료에서 23종의 피부사상균이 검출되었다. 검출된 균들은 Microsporum gypseum (43%), Chrysosporium spp. (35%), Trichophyton ajelloi (13%), Microsporum cookie (9%) 순이었다. 본 연구를 통해 많은 사람들이 모이는 해변 모래사장에 다양한 병원성 진균들이 분포함을 확인하였다. 향후 지속적인 자료수집을 통해 각질친화성 피부사상균의 분포 추이를 조사할 수 있을 것으로 사료된다.

Diversity of Keratinophilic Fungi on Human Hairs and Nails at Four Governorates in Upper Egypt

  • Gherbawy Youssuf A.M.H.;Maghraby Thanaa A.;El-Sharony Hassan M.;Hussein Mohmaed A.
    • Mycobiology
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    • 제34권4호
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    • pp.180-184
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    • 2006
  • The mycobiota of 160 hair and nail samples collected from 4 different governorates in upper Egypt were estimated using soil plate method for isolating keratinophilic and dermatophytic fungi. Twenty-three fungi were recorded on both hair and nail samples collected from the four governorates. Highest fungal diversity (20) was collected from Red Sea samples followed by Qena (18) and Aswan (17) while lowest fungal diversity was recorded from Sohage samples. The common genera were Aphanoascus, Aspergillus, Penicillium, Paecilomyces and Chrysosporium. The most prevalent species belonging to these genera were: A. fulvescens, Aphanoascus sp. A. flavus link, A. flavus var. columnaris, P. chrysogenium. P. lilacinus and C. sulfureum. True dermatophytes such as Nannizzia fulva appeared in $20{\sim}30%$ of the male samples.

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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    • 제37권2호
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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.

전주근교의 토양에서 분리된 호각화질성 진균의 오염에 관한 조사 (The Isolation of Keratinophilic Fungi from Soils in Chon-ju Area)

  • 허인;이주묵;윤창모
    • 한국임상수의학회지
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    • 제7권2호
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    • pp.489-495
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    • 1990
  • The purpose of this study was to investigate the contamination rates of Keratinophilic fungi in soils In Chonju. From september to November 1986, 98 soil samples were collected at the school and children's play ground, dog barn, pig barn, cow barn, horse barn and fowl barn( total 33 sites ). The samples were collected at the different depths(0~2cm, 30cm, 50cm ) in each of the sites, respectively. Each sample was cultured at 25$^{\circ}C$ according to Modified hair baiting method by using horse mane hair as a bait. The results obtained were summerized as follows ; 1. Eighty one of the 98 soil samples were found to be positive for Keratinophilic fungi. 2. In the examination of keratinophilic fungi in 98 soil samples, the organisms isolated weie as follows; Microsporum gypseum 20, Trichophyton ajelloi 15, Chrysosporium tropicum 40, C. Keratinophilum 24, C. tuberculatum 6 and Chrysosporium spp. like organism 4 strains. 3. The positive rates of keratinophilic fungi in each of the depths were 87.9%(29/33) in surface layer, 90.9%(30/33) in middle layer and 68.8%(22/32) in deep layer. 4. The positive rates of Keratinophilic fungi in each of the sites were 100%(3/3) in horse barn 91.7% (l1/12) in dog barn, 88.9%(16/18) in pig barn, 86.7%(13/15) in cow barn, 76.2%(16/21) in fowl barn and 75.9%(22/29) in school and children's play ground. 5. The isolation rates of M. gypseum, Pathogenic fungi for human and animals, were as follows ; 58.3% in dog barn(surface layers 100%, middle layers 50%, deep layers 25%) and 16.7% in pig barn(surface 33.3%, middle 16.7%, deep 0%). In the cow barn, the isolation rates were 13.3%(surface 40.0%, middle 0%, deep 0%) and 10% in horse barn(surface l00%, middle 100%, depp 100%). In the fowl barn, the isolation rates was 19.1%(surface 28.8%, middle 14.3%, deep 14.3%) and 3.5% in school and children's play ground(surface 0%, middle 0%, deep 11.1%).

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Report on the Unrecorded Helvella Genus Found in Taebaek City, South Korea

  • Sangyoung Park;Sohee Kim;Eunjin Kim;Ju-Kyung Eo;Hwayong Lee
    • 한국균학회지
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    • 제51권4호
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    • pp.411-417
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    • 2023
  • In July 2023, previously unrecorded fungi belonging to the genus Helvella were collected from the city of Taebaek, South Korea. These fungi are morphologically similar to Helvella crispa, but their differences include a wide, saddle-shaped apothecium and white hair on the receptacle surface. By analyzing DNA sequences combining the internal transcribed spacer (ITS) and nuclear ribosomal large subunit (nrLSU) regions and comparing them with various related species of Helvella, the collected fungi were identified as H. orienticrispa.

Study of the Production of Alkaline Keratinases in Submerged Cultures as an Alternative for Solid Waste Treatment Generated in Leather Technology

  • Cavello, Ivana A.;Chesini, Mariana;Hours, Roque A.;Cavalitto, Sebastian F.
    • Journal of Microbiology and Biotechnology
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    • 제23권7호
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    • pp.1004-1014
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    • 2013
  • Six nonpathogenic fungal strains isolated from alkaline soils of Buenos Aires Province, Argentina (Acremonium murorum, Aspergillus sidowii, Cladosporium cladosporoides, Neurospora tetrasperma, Purpureocillium lilacinum (formerly Paecilomyces lilacinus), and Westerdikella dispersa) were tested for their ability to produce keratinolytic enzymes. Strains were grown on feather meal agar as well as in solid-state and submerged cultures, using a basal mineral medium and "hair waste" as sole sources of carbon and nitrogen. All the tested fungi grew on feather meal agar, but only three of them were capable of hydrolyzing keratin, producing clear zones. Among these strains, P. lilacinum produced the highest proteolytic and keratinolytic activities, both in solid-state and submerged fermentations. The medium composition and culture conditions for the keratinases production by P. lilacinum were optimized. Addition of glucose (5 g/l) and yeast extract (2.23 g/l) to the basal hair medium increased keratinases production. The optimum temperature and initial pH for the enzyme production were $28^{\circ}C$ and 6.0, respectively. A beneficial effect was observed when the original concentration of four metal ions, present in the basal mineral medium, was reduced up to 1:10. The maximum yield of the enzyme was 15.96 $U_c/ml$ in the optimal hair medium; this value was about 6.5-fold higher than the yield in the basal hair medium. These results suggest that keratinases from P. lilacinum can be useful for biotechnological purposes such as biodegradation (or bioconversion) of hair waste, leading to a reduction of the environmental pollution caused by leather technology with the concomitant production of proteolytic enzymes and protein hydrolyzates.

Trichophyton rubrum 및 Trichophyton raubitschekii에 의한 개 피부사상균증에 관한 연구 (Dermatophytosis by Trichophyton rubrum and T raubitschekii in dogs)

  • 최원필
    • 대한수의학회지
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    • 제38권4호
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    • pp.823-828
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    • 1998
  • This study was carried out to determine the causative agent and the clinical features of dermatophytosis occurred in 3 dogs from Tae-gu, Korea between 1996 and 1997. Specimens of hair and scale, collected from skin lesions were inoculated on potato dextrose agar and mycobiotic agar supplemented with thiamine and inositol. The agar plates were incubated at $25^{\circ}C$ for 2 weeks. Growing fungi isolated were identified by the morphological and growth characterization on bromocresol purple-milk solids-glucose medium, Christensen urea broth and trichophyton media, and by hair perforation tests. Skin lesions were observed in legs, abdomen, ears, face and head with alopecia of various sizes accompanied by itching and/or inflammation. The causative agent of dermatophytosis in the 3 dogs was identified as Microsprum gypseum and Trichophyton rubrum (mixed infection, dog 1), T rubrum (dog 2) and T raubitschekii (dog 3). The dermatophytosis by T rubrum and T raubitschekii was first found on animals in Korea.

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피부진균증의 한의학적 고찰 (Study on Cutaneous Mycoses in Oriental Medicine)

  • 차은이;강정수
    • 동의생리병리학회지
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    • 제20권4호
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    • pp.799-806
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    • 2006
  • Fungi cause a number of plant and animal diseases. Because fungi are more chemically and genetically similar to animals than other organisms, this makes fungal diseases very difficult to treat. Human fungal infections are uncommon in normally healthy persons, being confined to conditions such as candidiasis (thrush) and dermatophyte skin infections such as athlete's foot. However, in the immunocompromised host, a variety of normally mild or nonpathogenic fungi can cause potentially fatal infections. Furthermore, the relative ease with which people can now visit 'exotic' countries provides the means for unusual fungal infections to be imported into this country. Fungal infections or mycoses are classified depending on the degree of tissue involvement and mode of entry into the host. These are Cutaneous, Subcutaneous, Systemic, and Opportunistic. As listed above, in superficial mycoses infection is localised to the skin, the hair, and the nails. An example is 'ringworm' or 'tinea', an infection of the skin by a dermatophyte. Ringworm refers to the characteristic central clearing that often occurs in dermatophyte infections of the skin. Dermatophyte members of the genera Trycophyton, Microsporum and Epidermophyton are responsible for the disease. Tinea can infect various sites of the body, including the scalp (tinea capitis), the beard (tinea barbae) the foot (tinea pedis: 'athlete's foot') and the groin (tinea cruris). All occur in the United Kingdom although tinea infections, other than pedis, are now rare. Candids albicans is a yeast causing candidiasis or 'thrush' in humans. As a superficial mycoses, candidiasis typically infects the mouth or vagina. C. albicans is part of the normal flora of the vagina and gastrointestinal tract and is termed a 'commensal' However, during times of ill health or impaired immunity the balance can alter and the organism multiplies to cause disease. Antibiotic treatment can also alter the normal bacterial flora allowing C. albicans to flourish. If we study mycoses of the orient medicine, we can improve the medical skills about mycoses.

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.