• Title/Summary/Keyword: Scopulariopsis

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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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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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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.

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.

Evolutionary Relationships of the Genus Trichoderma and Related Taxa Based on the Partial Sequences of 18S Ribosomal RNA (18S 리보좀 RNA 부분 염기서열에 의한 Trichoderma속 및 관련 불완전균류의 진화학적 유연관계)

  • Lee, Goang-Jae;An, Won-Gun;Lee, Jae-Dong;Joo, Woo-Hong
    • The Korean Journal of Mycology
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    • v.23 no.4 s.75
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    • pp.318-324
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    • 1995
  • The evolutionary relationships of the genus Trichoderma and related taxa were assessed using partial sequencing of 18S ribosomal RNA. Phylogenetic tree divided into three major groups; 1. Saccharomyces cerevisiae-Geotrichum klebahnii-Alternaria mali group; 2. Neurospora crassa-Aspergillus-Penicillium-Chrysosporium pannorum-Scopulariopsis sp. group; 3. Trichoderma group. The genus Trichoderma seemed to be phylogenetically separated from Saccharomyces cerevisiae, Aspergillus and Penicillium groups, and have passed through it's own evolutionary pathway.

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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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Isolation and Identification of the Fungi Producing a Soybean Milk Clotting Enzyme (두유 응고효소 생산 곰팡이의 분리 및 동정)

  • Lee, Chul-Woo;Kang, Chang-Hoon;Ha, Duk-Mo
    • Microbiology and Biotechnology Letters
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    • v.19 no.2
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    • pp.109-115
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    • 1991
  • Twenty-five fungal strains producing an extracellular soybean milk clotting enzyme were isolated from 146 soil samples, and identified as 11 species belonging to six genera of Aspergillus oryzae (5 strains), Aspergillus flavus (2 strains), Aspergillus parasiticus (1 strain), Aspergillus tamarii (2 strains), Aspergillus niger (4 strains), Aspergillus fumigatus (2 strains), Mucor hiemalis (2 strains), Wallemia sebi (4 strains), Scopulariopsis condida (1 strain), Fusarium redolens(1 strain) and Verticillum lecanii (1 strain). Among them, Aspergillus oryzae 020 and Aspergillus tamarii 287 showed relatively high soybean milk clotting activity. The coagulabilities of the enzyme from representative strains of those species decreased as the pH of soybean milk increased from 6.0 to 7.0 The optimum temperature for soybean milk clotting enzymes of those strains were 65$^{\circ}C$.

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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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