Setophoma zoysiae H. Liu & H. Sang 2025, sp. nov.
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2025
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| author | Liu, Haifeng Choi, Hyeongju Paul, Narayan Chandra Ariyawansa, Hiran A. Sang, Hyunkyu |
| author_facet | Liu, Haifeng Choi, Hyeongju Paul, Narayan Chandra Ariyawansa, Hiran A. Sang, Hyunkyu |
| contents | <p><i>Setophoma zoysiae</i> H. Liu & H. Sang sp. nov.</p><p>Fig. 14</p><p><b>Etymology.</b></p><p>Name refers to its host genus <i>Zoysia</i>.</p><p><b>Description from living culture CMML 20-14.</b></p><p>Sexual morph: undetermined. Asexual morph: Sporulation observed on OA media (Fig. 14 b – f). <i>Conidiomata</i> produced on surface of colonies (Fig. 14 b, c). <i>Conidia</i> ellipsoidal to subcylindrical, aseptate, 3.0–4.6 × 1.8–2.5 μm (Fig. 14 d – f).</p><p><b>Type.</b></p><p><b>Korea</b> • South Jeolla Province, Hwasun, isolated from roots of <i>Zoysia japonica</i>, October 2020, H. Liu and H. Sang, holotype CMML 20-14 H (permanently preserved in a metabolically inactive state), ex-holotype CMML 20-14, ex-isotype CMML 20-15.</p><p><b>Culture characteristics.</b></p><p>Colony reaching 28.12 mm diam. in darkness after 7 days at 25 ° C on PDA, front side white to light pink, reverse side yellow to sandy brown, mycelia dense (Fig. 14 a).</p><p><b>Notes.</b></p><p>Phylogenetic analysis was conducted using dataset from combined sequences of ITS, LSU, <i>TEF 1</i>, <i>RPB 2</i> and <i>TUB 2</i>. The strains CMML 20-14 and CMML 20-15 formed a distinct single branch in the genus <i>Setophoma</i>, supported with a high statistical support (100 % / 1.00) (Fig. 15), sister to clade containing ex-type strain (CBS 335.29) and representative strains (CBS 335.87, CBS 377.52 and CPC 18417) of <i>S. terrestris</i>. However, conidia of these two strains are smaller than those of <i>S. terrestris</i> (previously <i>Phoma terrestris</i>, 4.5–5.5 × 1.8–2.3 μm; Hassen (1929)). Hence, <i>Setophoma zoysiae</i> sp. nov. was introduced in this study to accommodate CMML 20-14 and CMML 20- 15 in the genus <i>Setophoma</i>.</p> |
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| spellingShingle | Setophoma zoysiae H. Liu & H. Sang 2025, sp. nov. Liu, Haifeng Choi, Hyeongju Paul, Narayan Chandra Ariyawansa, Hiran A. Sang, Hyunkyu Biodiversity Taxonomy Fungi Ascomycota Dothideomycetes Pleosporales Phaeosphaeriaceae Setophoma Setophoma zoysiae <p><i>Setophoma zoysiae</i> H. Liu & H. Sang sp. nov.</p><p>Fig. 14</p><p><b>Etymology.</b></p><p>Name refers to its host genus <i>Zoysia</i>.</p><p><b>Description from living culture CMML 20-14.</b></p><p>Sexual morph: undetermined. Asexual morph: Sporulation observed on OA media (Fig. 14 b – f). <i>Conidiomata</i> produced on surface of colonies (Fig. 14 b, c). <i>Conidia</i> ellipsoidal to subcylindrical, aseptate, 3.0–4.6 × 1.8–2.5 μm (Fig. 14 d – f).</p><p><b>Type.</b></p><p><b>Korea</b> • South Jeolla Province, Hwasun, isolated from roots of <i>Zoysia japonica</i>, October 2020, H. Liu and H. Sang, holotype CMML 20-14 H (permanently preserved in a metabolically inactive state), ex-holotype CMML 20-14, ex-isotype CMML 20-15.</p><p><b>Culture characteristics.</b></p><p>Colony reaching 28.12 mm diam. in darkness after 7 days at 25 ° C on PDA, front side white to light pink, reverse side yellow to sandy brown, mycelia dense (Fig. 14 a).</p><p><b>Notes.</b></p><p>Phylogenetic analysis was conducted using dataset from combined sequences of ITS, LSU, <i>TEF 1</i>, <i>RPB 2</i> and <i>TUB 2</i>. The strains CMML 20-14 and CMML 20-15 formed a distinct single branch in the genus <i>Setophoma</i>, supported with a high statistical support (100 % / 1.00) (Fig. 15), sister to clade containing ex-type strain (CBS 335.29) and representative strains (CBS 335.87, CBS 377.52 and CPC 18417) of <i>S. terrestris</i>. However, conidia of these two strains are smaller than those of <i>S. terrestris</i> (previously <i>Phoma terrestris</i>, 4.5–5.5 × 1.8–2.3 μm; Hassen (1929)). Hence, <i>Setophoma zoysiae</i> sp. nov. was introduced in this study to accommodate CMML 20-14 and CMML 20- 15 in the genus <i>Setophoma</i>.</p> |
| title | Setophoma zoysiae H. Liu & H. Sang 2025, sp. nov. |
| topic | Biodiversity Taxonomy Fungi Ascomycota Dothideomycetes Pleosporales Phaeosphaeriaceae Setophoma Setophoma zoysiae |
| url | https://doi.org/10.5281/zenodo.15785638 |