• 제목/요약/키워드: Scopulariopsis

검색결과 22건 처리시간 0.027초

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

  • 이상선;윤영실;유진영
    • 한국균학회지
    • /
    • 제24권4호통권79호
    • /
    • pp.329-336
    • /
    • 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.

  • PDF

한국재래메주에서 분리한 Scopulariopsis brevicaulis가 생성하는 Protease의 특성 및 작용양상

  • 최청;최광수;김성;이선호;손준호;최희진;이상선;안봉전
    • 한국미생물·생명공학회지
    • /
    • 제25권1호
    • /
    • pp.56-61
    • /
    • 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.

  • PDF

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
    • /
    • 제48권6호
    • /
    • pp.528-531
    • /
    • 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.

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

  • 최광수;이선호;홍승표;이희덕;배두경;최청
    • Applied Biological Chemistry
    • /
    • 제41권7호
    • /
    • pp.489-495
    • /
    • 1998
  • 한국 재래 간장으로부터 분리한 Scopulariopsis brevicaulis가 생성하는 ${\alpha}-galactosidase$의 최적 생산조건은 tryptone 1.5%, $NH_4NO_3$ 0.2%, raffinose 2.5%, $KH_2PO_4$ 0.5%, yeast extract 0.5%, pH 7.0, $27^{\circ}C$에서 3일간 배양 했을 때였다. ${\alpha}-galactosidase$의 최적 pH는 7.0, 최적온도는 $27^{\circ}C$였으며, $pH\;6.0{\sim}8.0$범위와 $40^{\circ}C$이하에서 안정하였다. $Ag^{2+},\;Hg^{2+},\;Cu^{2+}$ 등의 금속이온 및 p-chloromercuribenzoic acid, Iodine에 의해 강하게 저해되어 본 효소의 catalytic부위에 -SH기가 있음이 추정되었다. Km값은 1.9 mM, Vmax값은 $9.66{\times}10^2\;{\mu}M/min$이었다. 배양기간에 따른 raffinose의 분해양상을 high performance liquid chromatography로 살펴본 결과 배양초기에 raffinose가 분해되어 sucrose, glucose, fructose가 관찰되었다. 배양기간이 경과함에 따라 raffinose가 감소하였고 sucrose, glucose, fructose도 소실됨을 확인하였다.

  • PDF

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
    • /
    • 제51권1호
    • /
    • pp.135-138
    • /
    • 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.

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

  • 이광재;안원근;이재동;주우홍
    • 한국균학회지
    • /
    • 제23권4호통권75호
    • /
    • pp.318-324
    • /
    • 1995
  • Trichoderma속과 관련군의 진화학적 유연관계를 18S 리보좀 RNA 부분염기배열 (1419-1623)에 의하여 결정하였다. 계통수는 3개로 대별되었다 (Saccharomyces cerevisiae-Geotrichum klebahnii-Alternaria mali group, Neurospora crassa-Aspergillus-Penicillium-Chrysosporium pannorum-Scopulariopsis sp. group, Trichoderma group). Trichoderma속은 계통적으로 오래전에 Saccharomyces cerevisiae, Aspergillus, Penicillium groups과 분화되어 독자적인 진화경로를 거쳐온 것으로 믿어진다.

  • PDF

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

  • 이상선
    • 한국균학회지
    • /
    • 제23권2호통권73호
    • /
    • pp.161-175
    • /
    • 1995
  • 메주는 간장과 된장의 원료로 우리나라의 식물성 단백질인 조선 전통식품으로 중요하다. 조선 전통식으로 농가에서 만들어진 23종류의 메주덩어리를 수거하여, 29종의 균과 한 종의 세균을 채집하여 동정하였다. 이러한 중에서 다만 몇개의 미생물만이 메주발효과정에 작용하는 것을 발견하였고, 나머지 미생물은 메주발효에서 잘못 발효로 일어나는 오염 미생물로 밝혀졌다. 메주발효과정에서는 물리적인 변화로 건조과정(수분활성도)과 열방생과정이 메주발효 중에 일어나며, 이러한 과정이 미생물(대부분의 경우 메주 표면에서는 균)의 천이를 유도시켜 메주의 생화학적인 변화를 유도하는 것으로 나타났다. 균의 천이 과정에서 수분이 많았을 때는 물곰팡이인 접합균이 첨 서식한 것이 발견되었으며, 메주발효를 유도하는 것으로 나타났다. 흰포자를 방출하는 Scopulariopsis brevicaulis는 메주표면에서 고초세균인 Bacillus megatrium와 함께 후기 발열반응과정에서 발견되고 있었다. 미생물들이 분비하는 단백질 분해효소에 관한 조사에서, 각각의 미생물들은 콩 단백질 분해에 서로 상호보안적인 역할을 하였다. 또한, 접합균들은 조선 전통의 메주발효과정에서 후기 메주발효를 유도하는 중요한 균으로 관찰되었다.

  • PDF

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

  • 최언호;김영배;이서래
    • 한국식품과학회지
    • /
    • 제9권3호
    • /
    • pp.205-210
    • /
    • 1977
  • 시판(市販) 고추가루에서 13종의 곰팡이(Aspergillus amstelodami, Asp. clavatus, Asp. flavus, Asp. chevalieri, Asp. janus var. effusus, Asp. oryzae, Asp, oryzae var. brevis, Asp. repens, Asp. sydowi, Asp. thomii, Asp. tubingensis, Penicillium thomii, Scopulariopsis brevicaulis와 5종의 세균(Bacillus pumilus, Bac. subtilis, Micrococcus luteus, M. varians, Staphylococcus aureus)이 분리(分離), 동정(同定)되었다. 이들 미생물의 방사선 감수성(感受性)($D_{10}$ 값)을 보면 곰팡이는 $14{\sim}41\;krad$, 세균은 영양세포(營養細胞)가 $11{\sim}24\;krad$, 포자(胞子)가 $190{\sim}250\;krad$이었다. 햇 고추가루 중의 곰팡이 수는 1 g당 $2{\sim}3{\times}10^2$개, 세균은 $3{\sim}6{\times}10^7$개 이므로 200 krad의 방사선 조사(照射)로서 세균의 영양세포와 곰팡이 포자는 충분히 사멸(死滅)시킬 수 있다고 생각된다.

  • PDF

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

  • 이철우;강창훈;하덕모
    • 한국미생물·생명공학회지
    • /
    • 제19권2호
    • /
    • pp.109-115
    • /
    • 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$^{\circ}C$.

  • PDF

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

  • 최원필;여상건;이헌준
    • 대한수의학회지
    • /
    • 제24권1호
    • /
    • pp.36-39
    • /
    • 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.

  • PDF