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A New Species of Thelonectria and a New Record of Cephalotrichum hinnuleum from Gunwi and Ulleungdo in Korea

Mycobiology 2020년 48권 5호 p.341 ~ 350
Das Kallol, 유영현, 이승렬, 정희영,
소속 상세정보
 ( Das Kallol ) - Kyungpook National University College of Agriculture and Life Sciences
유영현 ( You Young-Hyun ) - National Institute of Biological Resources Microorganism Resources Division
이승렬 ( Lee Seung-Yeol ) - Kyungpook National University College of Agriculture and Life Sciences
정희영 ( Jung Hee-Young ) - Kyungpook National University College of Agriculture and Life Sciences

Abstract


Three fungal strains belonging to the class Sordariomycetes were isolated from soils collected from Gyeongsangbuk-do in Korea. They were identified as Cephalotrichum hinnuleum (UD CT 1-3-3 and KNU-19GWF1) and Thelonectria chlamydospora sp. nov. (UD ST 1-2-1). T. chlamydospora sp. nov. was morphologically identical to T. truncata, but its specific macroconidial dimensions, lower number of septations, and chlamydospore diameter render it distinct from the strains of the genus Thelonectria. The strains UD CT 1-3-3 and KNU-19GWF1 were developed flat, velvety to felty, and golden gray to brown-gray after 14?days of incubation at 25?°C on PDA. These strains were produced polyblastic conidiogenous cells and conidia were pale brown to brown, smooth, thin-walled, subglobose to ellipsoidal, arranged in chains, and the diameters of 6.7?9.0?×?3.7?5.1?μm. The strains were also confirmed by using the multi-locus genes using internal transcribed spacer (ITS) regions, partial large subunit (LSU), translation elongation factor 1α (TEF1-α), β-tubulin (TUB2), and actin (ACT) genes. This is the discovery of T. chlamydospora sp. nov. and Cephalotrichum hinnuleum, a new record from Korea.

키워드

Cephalotrichum hinnuleum; Sordariomycetes; Thelonectria chlamydospora

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