• Title/Summary/Keyword: Cladosporium

Search Result 210, Processing Time 0.019 seconds

Cladosporium alliicola sp. nov. on Allium victorialis var. platyphyllum (산마늘에서 분리한 신종(新種) Cladosporium alliicola)

  • Shin, Hyeon-Dong;Braun, Uwe
    • The Korean Journal of Mycology
    • /
    • v.23 no.2 s.73
    • /
    • pp.139-143
    • /
    • 1995
  • A species of Cladosporium isolated from Allium victorialis var. platyphyllum Makino differs from C. allii and C. allii-cepae by catenate, multiseptate conidia and aseptate conidiophores. Comparable Cladosporium spp. on other substrates are unknown. Therefore, this fungus must be considered as a new, undescribed species, viz. Cladosporium alliicola sp. nov.

  • PDF

Some Undescribed Cladosporium, Alternaria, Curvularia and Eurotium repens in Korea (한국산 미기록 Cladosporium, Alternaria, Curvularia와 Eurotium repens에 관한 연구)

  • Min, Kyung-Hee
    • The Korean Journal of Mycology
    • /
    • v.14 no.1
    • /
    • pp.1-8
    • /
    • 1986
  • The following ten species collected from the air of Seoul City and the soils in Korea are reported as undescribed to Korean fungal flora: Cladosporium sphaerospermum, C. herbarum, C. colocasiae, Alternaria chlamydospora, A. cheiranthi, A. citri, Curvularia ovoidea, C. inaequalis, C. affinis, and Eurotium repens.

  • PDF

Identification of Microorganisms, Cladosporium sp. and Sterigmatomyces sp., Proliferated on the Surface of Traditional Soy Sauce, and the Effect of NaCl Concentration on Their Enzymatic Activity (전통간장으로부터 분리한 Cladosporium sp.과 Sterigmatomyces sp. 미생물의 동정 및 NaCl 농도에 따른 미생물 효소활성 분석)

  • Lee, Nam-Keun;Ryu, Young-Jun;Yeo, In-Cheol;Park, Sung-Joon;Kwon, Ki-Ok;Cha, Chang-Jun;Hahm, Young-Tae
    • Korean Journal of Food Science and Technology
    • /
    • v.44 no.4
    • /
    • pp.488-492
    • /
    • 2012
  • Two strains, traditionally referred to as rock flower (Bawhi-kot) and buckwheat flower (Memil-kot or Chile-Kot), were isolated from stored traditional soy sauce and were identified by using the 18S ITS1/4 region sequences. The rock flower strain showed 99% of similarity with Cladosporium sp. and buckwheat flower strain was 99% identical with yeast Sterigmatomyces halophilus. Both strains were tentatively named Cladosporium sp. NK1 and Sterigmatomyces halophilus NK2, respectively. The optimal growth pHs and temperatures of both strains in a YPD broth medium were in the range of pH 5.0 to 7.0 and 22 to $27^{\circ}C$. Both strains were able to grow in more than 20% of NaCl. In the enzyme activity assay, high protease activity of Cladosporium sp. NK1 and S. halophilus NK2 were obtained in YPD containing 10% of NaCl. High amylase activities of both stains were in 15% and 5% of NaCl, respectively. Lipase activity was, however, not detected in both strains.

Two Species of Endophytic Cladosporium in Pine Trees in Korea

  • Paul, Narayan Chandra;Yu, Seung-Hun
    • Mycobiology
    • /
    • v.36 no.4
    • /
    • pp.211-216
    • /
    • 2008
  • During our studies on the diverse endophytic fungi resident on conifer needles, many species of Cladosporium previously unreported in Korea were encountered. In this paper, we report on two species of Cladosporium from the needles of pine trees (Pinus spp.). Based on analyses of internal transcribed spacer gene sequence, and cultural and micromorphological characteristics, they were identified as C. oxysporum and C. sphaerospermum. Both species have not been hitherto reported in Korea.

Leaf Blotch of Allium fistulosum Caused by Cladosporium allii-cepae (Cladosporium allii-cepae에 의한 파 누른무늬병)

  • 신현동
    • Korean Journal Plant Pathology
    • /
    • v.11 no.1
    • /
    • pp.90-93
    • /
    • 1995
  • Leaf blotch of Welsh onion was observed at a farmer's field at Kangnung in July 1990. Further collection o the diseased materials was made in 1993 and 1994. The symptom initially appeared as discolored spot and later yellowish blotch with the long axis parallel to the leaf veins, which turned to sooty colored concentric lesion due to heavy production of conidiophores and conidia. Cladosporium allii-cepae (Ranojevic) M. B. Ellis was repeatedly isolated from the leaf lesions. Healthy Welsh onion inoculated with conidial suspension of the fungus produced the typical symptom 10 days after inoculation. Koch's postulates were fulfilled by reisolation of the fungus. This is the first report of a Cladosporium leaf blotch of Welsh onion in Korea.

  • PDF

Four Endophytic Ascomycetes New to Korea: Cladosporium anthropophilum, C. pseudocladosporioides, Daldinia eschscholtzii, and Nigrospora chinensis

  • Lee, Dong Jae;Lee, Jae Sung;Lee, Hyang Burm;Choi, Young-Joon
    • The Korean Journal of Mycology
    • /
    • v.47 no.3
    • /
    • pp.187-197
    • /
    • 2019
  • Ascomycota is the largest phylum of the Fungi, including approximately 6,600 genera. They are often isolated from soils, indoor air, and freshwater environments, but also from plants as pathogens or endophytes. In this study, four species of Ascomycota (two of Cladosporium and one of each Daldinia and Nigrospora) were collected from the leaves of four woody plants (Camellia japonica, Ginkgo biloba, Quercus sp., Vitis vinifera). Their cultural characteristics were investigated on five different media (PDA, V8A, CMA, MEA, CZA) at 3 days after incubation at $25^{\circ}C$ in darkness. BLASTn search and phylogenetic analysis were performed using the internal transcribed spacer (ITS) rDNA sequences, in addition to tef1 gene sequences for Cladosporium species. Based on the cultural, morphological, and phylogenetic data, the isolates were identified as Cladosporium anthropophilum, Cladosporium pseudocladosporioides, Daldinia eschscholtzii, and Nigrospora chinensis. Previously, some members of Cladosporium and Nigrospora have been recorded as endophytes inhabiting the leaves and stems of various plants, whereas Daldinia eschscholtzii is a wood-inhabiting endophyte or wood-decaying fungus. To our knowledge, this is the first report of these four ascomycetes in Korea.

Air-borne Fungi in the Air of Seoul (서울 지방의 공중(空中) 진균(眞菌)에 관한 연구(硏究))

  • Min, Kyung-Hee;Lee, Yung-Ja
    • The Korean Journal of Mycology
    • /
    • v.13 no.2
    • /
    • pp.115-121
    • /
    • 1985
  • An aerial survey for fungal flora in Seoul has been carried out by Petri plate exposure method for a period of one year. A total of 2227 fungal spores appeared in the plates. Of these, Cladosporium was the commonest fungus representing 43.5% of the total spore count followed by Penicillium (15.8%). Alternaria (10.5%), and Aspergillus (3.8%). There were seasonal variations in the prevalence of fungal spores. The occurrence of these fungi was greatly affected by climatic conditions. However, Alternaria appeared to prefer warmer weather. A comparison of fungal population from the outdoor and indoor air was also investigated to support the view that Alternaria is abundant population from the outdoor air and that Cladosporium from the indoor air depending on their availability in the atmosphere.

  • PDF

Occurrence of German Iris Leaf Spot Caused by Cladosporium Iridis in Korea

  • Shin, Hyeon-Dong;Lee, Hyun-Tae;Im, Dae-Joon
    • The Plant Pathology Journal
    • /
    • v.15 no.2
    • /
    • pp.124-126
    • /
    • 1999
  • A fungus associated with the leaf spot of German iris (Iris germanica) was identified as Cladosporium iridis based on the morphological characteristics of the condiophores and conidia. A conidial suspension of the fungus was artificially inoculated onto a healthy unwounded plant, proving its pathogenicity. This is the first record of this disease from Korea.

  • PDF

Evaluation of Antifungal Activities of Nanoparticles against Cladosporium cladosporioides Spore Bioaerosols (Cladosporium cladosporioides 포자에 대한 나노입자의 항진균 특성 평가)

  • Yun, Sun-Hwa;Bae, Gwi-Nam;Lee, Byung-Uk;Ji, Jun-Ho;Kim, Sun-Jung
    • Journal of Korean Society for Atmospheric Environment
    • /
    • v.25 no.4
    • /
    • pp.255-263
    • /
    • 2009
  • The antifungal activity of silver, copper, and titania nanoparticles against fungal spores was investigated. Cladosporium cladosporioides spores were aerosolized and sampled on a solid agar plate using an Anderson impactor. The solid agar plate contained different concentration of nanoparticles ranging from 0 to $500{\mu}g/mL$. Silver and copper nanoparticles were shown to be an effective antifungal agent, while titania nanoparticles were not. Antifungal activity of these effective nanoparticles appeared at $300{\mu}g/mL$ concentration.

Cladosporium sp. is the Major Causal Agent in the Microbial Complex Associated with the Skin Sooty Dapple Disease of the Asian Pear in Korea

  • Park, Young-Seob;Kim, Ki-Chung;Lee, Jang-Hoon;Cho, Song-Mi;Choi, Yong-Soo;Kim, Young-Cheol
    • The Plant Pathology Journal
    • /
    • v.24 no.2
    • /
    • pp.118-124
    • /
    • 2008
  • Skin sooty dapple disease, a fungal disease that lowers Asian pear fruit quality, has emerged recently in Korea but has not yet been thoroughly characterized. This disease affects the surface of fruit, leaves, and young shoots of the Asian pear, typically appearing as a dark or pale black dapple on the fruit surface. The disease initiates on the fruit with small circular lesions that become bigger, eventually spreading to form large circular or indefinite lesions. Sparse dark or flourishing white-greyish aerial mycelia and appearance of a dark or pale black dapple on the fruit surface are typical signs of this disease. The disease was severe during cold storage of the Niitaka and Chuhwangbae varieties, but more limited on the Gamcheonbae and Hwangkeumbae varieties. To identify causal pathogens, 123 fungal isolates were obtained from lesions. The fungi that caused typical skin sooty dapple disease symptoms in our bioassay were identified. Based on their morphological characteristics, 74% of the isolates were Cladosporium sp. and 5-7 % of the isolates were Leptosphaerulina sp., Tripospermum sp., or Tilletiopsis sp. None of the isolates caused severe soft rot by injection to a wound plug, but some of the Cladosporium sp. isolates caused mild maceration. Therefore this microbiol complex cannot account for the soft rot also observed in stored fruits. The high frequency of isolation of Cladosporium sp. from disease tissues and bioassay on pear fruit surface suggest that Cladosporium sp. could be a major pathogen in the microbial complex associated with skin sooty dapple disease of the Asian pear in Korea.