• Title/Summary/Keyword: Trichocladium

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A new record of Trichocladium griseum in Korea: morphological and molecular characterization

  • Tagele, Setu Bazie;Nguyen, Thuong T.T.;Kim, Sang Woo;Adhikari, Mahesh;Gurung, Sun Kumar;Lee, Hyun Goo;Gwon, Byeong Heon;Ju, Han Jun;Kosol, San;Lee, Hyang Burm;Lee, Youn Su
    • The Korean Journal of Mycology
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    • v.47 no.2
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    • pp.105-112
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    • 2019
  • A unrecorded species of Trichocladium, Trichocladium griseum, was isolated in 2017 during a survey of fungal diversity in Ulsan province, South Korea. This species was identified based on morphological characteristics and phylogenetic analysis of the internal transcribed spacer (ITS) rDNA and ${\beta}-tubulin$ gene sequences. T. griseum has not yet been reported in South Korea. Thus, we report for the first time a new record of Trichocladium griseum in Korea, and we include the descriptions and morphological illustrations of this fungus.

New Recorded Species in Three Genera of the Sordariomycetes in Korea

  • Park, Sangkyu;Ten, Leonid;Lee, Seung-Yeol;Back, Chang-Gi;Lee, Jae-Jin;Lee, Hyang Burm;Jung, Hee-Young
    • Mycobiology
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    • v.45 no.2
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    • pp.64-72
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    • 2017
  • In an ongoing survey of Korean indigenous fungi, three fungal strains belonging to the Sordariomycetes were isolated from soil samples. These strains were designated KNU16-001, KNU16-002, and KNU16-009, and identified as Ambrosiella grosmanniae, Acremonium sclerotigenum, and Trichocladium asperum, respectively, based on morphological characterization and phylogenetic analysis using internal transcribed spacer region sequences of ribosomal DNA. This is the first report of these species in Korea.

Diversity and Mycotoxin Production of Aspergillus flavus in Stored Peanut (저장 땅콩에서 분리된 Aspergillus flavus의 다양성 및 독소생성능)

  • Choi, Jung-Hye;Nah, Ju-Young;Lee, Mi-Jeong;Lim, Su-Bin;Lee, Theresa;Kim, Jeomsoon
    • The Korean Journal of Mycology
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    • v.49 no.3
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    • pp.303-313
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    • 2021
  • Peanuts in storage were estimated for mycotoxigenic fungi and mycotoxins. Peanut samples collected from storages in Gochang were mainly contaminated with Fusarium (17.2±28.0%), Penicillium (12.4±28.0%), and Aspergillus (8.0±7.6%). Other genera, including Talaromyces, Rhizopus, Rhizoctonia, Trichocladium, Clonostachys, Mucor, Chaetomium, Trametes, Epicoccum, and Humicola, were also found. Although aflatoxins were not detected in the peanut samples, 29 strains of Aspergillus flavus were identified using molecular marker genes. Among them, 17 selected isolates produced aflatoxins in solid culture media ranging from 0.61-187.82 ㎍/kg. All of them could produce both aflatoxin B1 and B2 and some (n=5) produced additional G1, G2, or both. This study is the first report that A. flavus stains obtained from Korean stored peanut are aflatoxigenic.

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.