• Title/Summary/Keyword: Scopulariopsis brevicaulis

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First Record of the Complete Mitochondrial Genome of a Saprotrophic and Opportunistic Human Pathogenic Fungus, Scopulariopsis brevicaulis

  • Park, Jongsun;Kwon, Woochan;Hong, Seung-Beom;Han, Kap-Hoon
    • Mycobiology
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    • v.48 no.6
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    • pp.528-531
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    • 2020
  • Scopulariopsis brevicaulis is a widely distributed soil fungus known as a common saprotroph of biodegradation. It is also an opportunistic human pathogen that can produce various secondary metabolites. Here, we report the first complete mitochondrial genome sequence of S. brevicaulis isolated from air in South Korea. Total length of the mitochondrial genome is 28,829 bp and encoded 42 genes (15 protein-coding genes, 2 rRNAs, and 25 tRNAs). Nucleotide sequence of coding region takes over 26.2%, and overall GC content is 27.6%. Phylogenetic trees present that S. brevicaulis is clustered with Lomentospora prolificans with presenting various mitochondrial genome length.

한국재래메주에서 분리한 Scopulariopsis brevicaulis가 생성하는 Protease의 특성 및 작용양상

  • Choi, Cheong;Choi, Kwang-Soo;Kim, Sung;Lee, Seon-Ho;Son, Jun-Ho;Choi, Hee-Jin;Lee, Sang-Seon;An, Bong-Jeon
    • Microbiology and Biotechnology Letters
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    • v.25 no.1
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    • pp.56-61
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    • 1997
  • An alkaline protease producing microorganism was isolated from korean traditional Meju and identified as Scopulariopsis brevicaulis. The optimum culture condition of Scopulariopsis brevicaulis for the production of alkaline protease was as follow: 2% soluble starch, 0.2$, tryptophan, 0.1% (NH$_{4}$) $_{2}$S$_{2}$O$_{8}$ 0.2% NaHPO$_{4}$, pH 7.5, 35$\CIRC $C. The optimum pH and temperature for the enzyme activity of alkaline protease producing Scopulariopsis brevicaulis were pH 9.0 and 50$\circ $C, respectively. The enzyme was relatively stable at pH 6.0~11.0 and at temperature below 40$\circ $C. The activity of the enzyme was inhibited by Hg$^{2+}$ whereas Cu$^{2+}$ gave rather activating effects on the enzyme activity. Phenylmethanesulfonyl fluoride inhibited the enzyme activity. This result indicates that serine is very important role in this enzyme. Km value for casein was 1.2410$^{4}$ M/L, V$_{max}$ value for casein was 25.99 $\mu $g/min. This enzyme hydrolyzed casein more rapidly than the hemoglobin.

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Characteristics and Action Pattern of ${\alpha}-galactosidase$ from Scopulariopsis brevicaulis in Korean Traditional Meju (한국 재래 간장에서 분리한 Scopulariopsis brevicaulis가 생성하는 ${\alpha}-galactosidase$의 특성 및 작용양상)

  • Choi, Kwang-Soo;Lee, Seon-Ho;Hong, Seung-Pyo;Lee, Hee-Duck;Bae, Du-Kyung;Choi, Cheong
    • Applied Biological Chemistry
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    • v.41 no.7
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    • pp.489-495
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    • 1998
  • The optimum culture condition of Scopulariopsis brevicaulis for the production of ${\alpha}$-galactosidase was as follows: Tryptone 1.5%, $NH_4NO_3$ 0.2%, Raffinose 2.5%, $KH_2PO_4$ 0.5%, yeast extract 0.5%, pH 7.0, $27^{\circ}C$. The optimum pH and temperature for the enzyme activity of ${\alpha}$-galactosidase producing Scopulariopsis brevicaulis were pH 7.0 and $27^{\circ}C$, respectively. The enzyme was relatively stable at $pH\;6.0{\sim}8.0$ and at temperature below $40^{\circ}C$. The activity of the enzyme was inhibited by $Ag^{2+},\;Hg^{2+},\;Cu^{2+}$, p-chloromercuribenzoic acid and Iodine. These results would indicate the presence of -SH groups in the catalytic site of the enzyme. Km value was 1.9 mM for $p-nitrophenyl-{\alpha}-D-galactopyranoside$ and Vmax value was $9.66{\times}10^2\;{\mu}M/min$. Sugar constituents of culture broth were identified by HPLC that the enzyme liberated sucrose, glucose and fructose from raffinose and raffinose was significantly decreased.

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Microsurgical Debridement for Persistent Ulcers Due to Rare Fungus Infection: Case Report and Literature Review

  • Yu-Wen Tsui;Chia-Yu Tsai;Hung-Chi Chen
    • Archives of Plastic Surgery
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    • v.51 no.1
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    • pp.135-138
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    • 2024
  • A patient suffered from chronic ulcer due to recalcitrant fungal infection for 3.5 years. Five antifungal agents and 40 times of debridement—all failed. Finally, radical microscopic debridement was performed for eradication of fungal conidiospores. Since then, there was no recurrence at 2 years of follow-up. Scopulariopsis brevicaulis is one of the rarest pathogens of cutaneous fungal infections, for which multidrug resistance increased the complexity and difficulty of treatment. Radical excision, especially microscopic debridement, was the key for eradication of fungal conidiospores in this case.

The fungal isolates of Scopulariopsis collected from Korean home-made Mejus (메주에서 분리된 Scopulariopsis 속의 분리균)

  • Lee, Sang-Sun;Yoon, Young-Sil;Yoo, Jin-Young;Lee, Kap-Duk
    • The Korean Journal of Mycology
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    • v.24 no.4 s.79
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    • pp.329-336
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    • 1996
  • From five years' previous work, the fungal isolates of Scopulariopsis were reported to be important flora at the late stage of meju fermentation. Mainly, the white or pale brown powders of spore mass of these fungi were observed on the surfaces of rectangular mejus, and to be an important sign for well-done Korean traditional home - made mejus. Out of the five isolates previously collected and stored, two kinds of Scopulariopsis isolates were identified as S. brevicauli and S. fusca. The microscopic differences between two were found to be branching patterns of annellophore and ornamentations of spore wall (warty and smooth). However, the intermediate form between two ornamentations of spore wall were also observed in our isolates. This observation was consistent with other result made from the protein electrophoresis. The isolates of Scopulariopsis were considered to be similar or superior to those of Aspergillus species, as compared with production of protease and amylase related enzymes. Thus, these isolates were speculated to be important fungi in Korean traditional home - made meju fermentation and also in production of protease and amylase.

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A study on hyphomycetous fungi found on Maejus, a raw material of Korean traditional soysources (메주에서 분리한 불완전균(Hyphomycetes)에 관한 연구)

  • Lee, Sang-Sun;Park, Kwang-Ho;Choi, Kyoung-Jin;Won, Sun-Ae
    • The Korean Journal of Mycology
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    • v.21 no.4
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    • pp.247-272
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    • 1993
  • Forty-eight fungal isolates were collected from the Korean traditional maejus and twenty-eight isolates of them were identified to be a hyphomycetous fungus(three genera and 20 species) Aspergillus flavus, A. flavus var columnaris, A. oryzae, A, oryzae var effusus, A. terreus, Scopula­riosis brevicaulis, Penicillium botryosum, P. gorlenkoanum, P. griseo-purpureum, P. citrinum, P. miczynskii, P. gaditanum, P. turolense, P. funiculosum, P. rubicundum, P. godlewskii, P. jensenii, P. roqueforti, P. volguense, P. verrucosum. Various 14 species of Penicillium were isolated from maejus, but all of them were not considered to be involved in the maeju fermentation. Otherwise, S. brevicaulis was especially collected from the maejus of various located areas, but were also related to the good quality of maejus under labratory conditions. A. flavus, A. oryzae P. tulolense, and P. funiculosum were also observed to be involved in the process of maeju.

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Lactic acid and alcoholic fermentation of low-salted raw kanjang digestion liquor made from Bacillus subtilis var. globigii and Scopulariopsis brevicaulis inoculated meju (Bacillus subtilis var. globigii와 Scopulariopsis brevicaulis 접종메주로 단기숙성 저염생간장의 젖산 및 알콜발효)

  • Chung, Yeung-Gun;Choi, Choeng;Chung, Hyun-Chae;Im, Moo-Hyeog;Choi, Jong-Dong;Lee, Choon-Woo;Choi, Kwang-Soo
    • Applied Biological Chemistry
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    • v.41 no.6
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    • pp.405-409
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    • 1998
  • This work was carried out to investigate the behavior of sugars contained in raw soybean during cooking and meju preparation processes, and the effects of sugar addition to the raw kanjang digestion liquor made from G8 and SB meju on the lactic acid and alcoholic fermentation of kanjang. Sharp reduction in sugars content in soybean during cooking and meju preparation process was observed. Rapid lactic acid and alcoholic fermentation in the G8 and SB kanjang with 5% added glucose was observed but not in the corresponding kanjang without sugar addition after inoculation of Pediococcus halophilus, Zygosaccharomyces rouxii and Candida versatilis starter culture to the low-salted raw kanjang digestion liquor made respectively from G8 and SB meju. 0.46% and 0.88% of lactic acid and 1% and 2% of alcohol content in the G8 and SB kanjang respectively was observed 160 hours after the inoculation of the lactic acid bacteria starter culture.

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Meju Fermentation for a Raw Material of Korean Traditional Soy Products (조선전통 식품으로 메주발효)

  • Lee, Sang-Sun
    • The Korean Journal of Mycology
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    • v.23 no.2 s.73
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    • pp.161-175
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    • 1995
  • Meju is a raw material used to make Korean soy sauce (Kanjang) and soybean paste (Doenjang), both of them rich in plant protein. The twenty-nine fungal and a bacterial species were identified from twenty-three traditionally homemade meju cakes. Out of them, only a few species were found to be involved in the actual fermentation process of meju; The other species were contaminants during the improper subprocesses of meju fermentation. The fungal floral successions were observed to be related to two physical and biochemical changes of meju cakes during meju fermentation: drying and heat releasing processes. The zygomycetous fungi were first observed to exist mainly during the first stage. Scopulariopsis brevicaulis was observed to grow on the surface of meju cakes and then to coexist with Bacillus megatrium in the inner part of meju cakes during the second stage. Based on the biochemical tests, the proteases secreted by the different microorganisms were involved in the degradation of soybean proteins with a mutual relationship. Also, zygomycetous fungi were speculated to be important microorganisms for inducing the second stage in the traditional Korean homemade meju.

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Isolation of Microorganisms from Red Pepper Powder and their Radiosensitivity (고추가루중 미생물(微生物)의 분리(分離) 및 방사선 감수성(感受性))

  • Choi, Eon-Ho;Kim, Young-Bae;Lee, Su-Rae
    • Korean Journal of Food Science and Technology
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    • v.9 no.3
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    • pp.205-210
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    • 1977
  • From samples of red pepper powder sold in Korea were isolated and identified 13 species of molds (Aspergillus amstelodami, Asp. chevalieri, Asp. clavatus, Asp. flavus, Asp. janus var. effusus, Asp. oryzae, Asp. oryzae var. brevis, Asp. repens, Asp. sydowi, Asp. thomii, Asp. tubingensis, Penicillium thomii, Scopulariopsis brevicaulis) and 5 species of bacteria (Bacillus pumilus, Bac. subtilis, Micrococcus luteus, M. varians, Staphylococcus aureus). Radiosensitivity of these microorganisms was examined to give $D_{10}$ values of $14{\sim}41\;krad$ for molds, $11{\sim}24\;krad$ for bacterial vegetative cells and $190{\sim}250\;krad$ for bacterial spores. The red pepper powder was contaminated with $2{\sim}3{\times}10^2$ mold counts/g and $3{\sim}6{\times}10^7$ bacterial counts/g, which would be sufficiently destroyed by irradiating 200 krad ${\gamma}-rays$.

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Taxonomy and Identification of Fungi Isolated from Round Bale Silage (원형 곤포사일리지에 발생한 곰팡이의 분류 동정)

  • Nho, W.G.;Yeo, J.M.;Kim, W.Y.;Lee, J.H.;Seo, S.;Kim, M.K.;Seo, G.S.
    • Journal of Practical Agriculture & Fisheries Research
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    • v.14 no.1
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    • pp.61-83
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    • 2012
  • To identification of fungi that occurs round bale silages, 253 fungal contaminated samples were collected from 2009 to 2011. Total 253 silage samples from Italian ryegrass, sudan grass, rye, corn, barley and oat were analysed. Total 270 strains were purely isolated from contaminated round bale silages. The fungi were identified with morphological characteristics and rDNA sequence analysis. Nineteen species of fungi(Rhizopus sp., Fusarium spp., Coprinus sp., Blastomyces sp., Aureobasidium sp., Polypaecilum sp., Botryoderma sp., Mucor sp., Scytalidium sp., Sphaeropsis sp., Aspergillus spp., Trichocladium sp., Humicola sp., Staphylotrichum sp., Periconia sp., Verticillium sp., Diplococcium sp., Penicillium spp. and Trichoderma spp.) were identified by morphological characteristics. On the other hand, fungi isolated from silage were identified to Acremonium strictum, Aspergillus tubingensis, Bionectria ochroleuca, Dipodascaceae sp., Fusarium proliferatum, Fusarium oxysporum, Fusrium solani, Gelasinospora reticulata, Gibberella moniliformis, Gibberella zeae, Nectria mauritiicola, Penicillium paneum, Pseudallecheria boydii, Schizophyllum commune, Scopulariopsis brevicaulis and Simplicillium lamellicola by rDNA sequence analysis. Penicillium sp. and Trichoderma sp., were isolated 74 and 64 strains, respectively. Humicola sp., Aspergillus sp., Coprinus sp., and Fusarium spp. were identified 10 to 30 strains. Most fungi were isolated together with more than one species in a sample looked like one species with the naked eyes.