Nigrospora osmanthi Mei Wang & L. Cai
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| author | Wang, Xing-Chang Zhang, Rui-Nan Norphanphoun, Chada Wang, Si-Bo Zou, Meng-Ting Guo, Shi-Qi Sun, Jing-E Wang, Jia-Ping Wijayawardene, Nalin N. Hyde, Kevin D. Wang, Yong Liu, Feng-Quan |
| author_facet | Wang, Xing-Chang Zhang, Rui-Nan Norphanphoun, Chada Wang, Si-Bo Zou, Meng-Ting Guo, Shi-Qi Sun, Jing-E Wang, Jia-Ping Wijayawardene, Nalin N. Hyde, Kevin D. Wang, Yong Liu, Feng-Quan |
| contents | <p><i>Nigrospora osmanthi</i> Mei Wang & L. Cai, Persoonia 39: 135 (2017).</p><p>Fig. 16</p><p><b>Substrate and distribution.</b></p><p><i>Ficus pandurata</i>, China (Liu et al. 2019); <i>Hedera nepalensis</i>, China (Wang et al. 2017); Water Lettuce, China (Lin et al. 2023); <i>Stenotaphrum secundatum</i> China (Mei et al. 2019); <i>Orthosiphon stamineus</i>, Malaysia (Ismail et al. 2022); <i>Artemisia argyi</i>, China (Yang et al. 2025); <i>Cirsium setosum</i>, <i>Phyllostachys nigra</i>, <i>Phragmites australis</i>, <i>Rosa chinensis</i>, China (Hao et al. 2020). Other distributions such as Colombia, Croatia, Iran, Malaysia, Saudi Arabia, South Africa, and United States recorded in GBIF.</p><p><b>Description.</b></p><p>Associated with leaf spots of <i>Juglans regia</i>. Circular or irregular lesions, ranging from yellowish-brown to dark brown with yellow halos. <b>Sexual morph</b>: Not observed. <b>Asexual morph</b>: On SNA, <i>Hyphae</i> 3.5–7 µm wide, branched, septate, hyaline to dark brown, smooth. <i>Conidiophores</i> reduced to conidiogenous cells. <i>Conidiogenous cells</i> 5.8–8.7 × 4.1–6.6 µm (x ̄ = 7.0 × 5.2 μm, n = 30), subglobose, monoblastic, pale green to brown. <i>Conidia</i> 10.2–12.3 × 8.3–10.9 µm (x ̄ = 11.4 × 9.5 μm, n = 30), globose to subglobose, aseptate, solitary, brown to black, smooth, shiny.</p><p><b>Culture characteristics.</b></p><p>Colonies after 7 days at 25 ° C: On PDA, colonies reach 90 mm diam., flat, spreading, dense aerial mycelia, with regular margins, surface and reverse white. On MEA, colonies reach 90 mm diam., flat, spreading, dense aerial mycelia, regular margins, surface and reverse pale vinaceous grey. On CMA, colonies reach 90 mm diam., flat, spreading, regular margins, surface and reverse pale vinaceous grey. On SNA, colonies reach 88–90 mm diam., flat, spreading, aerial mycelia scant, regular margins filamentous, surface and reverse pale vinaceous grey. On WA, colonies reach 52–55 mm diam., flat, spreading, with erose and irregular margin, surface and reverse pale vinaceous grey. On OA, colonies reach 90 mm diam., flat, spreading, dense aerial mycelia, with regular margins, surface mouse grey and reverse center dark mouse grey and margin saffron. Sporulation was abundant only on SNA after 14 days.</p><p><b>Material examined.</b></p><p>China • Yunnan Province, Chuxiong City, on the diseased leaves of <i>Juglans regia</i> with spots, 23 March 2024, M. T. Zou, HGUP 25-0062; GUCC 25-0130, GUCC 25-0131, GUCC 25-0132 and GUCC 25-0133.</p><p><b>Notes.</b></p><p><i>Nigrospora osmanthi</i> was first observed on <i>Osmanthus</i> sp. in Jiangxi Province, China (Wang et al. 2017). In this study, four strains (GUCC 25-0130, GUCC 25-0131, GUCC 25-0132, and GUCC 25-0133) were isolated from leaf spots of <i>J. regia</i>. Phylogenetic analysis revealed that these two strains clustered with the type strain of <i>N. osmanthi</i> (CGMCC 3.18126) and strain LC 4467, showing no significant genetic divergence. Morphologically, our isolates exhibited characteristics consistent with those described for <i>N. osmanthi</i> (Wang et al. 2017). Based on the combined morphological and phylogenetic evidence, the four strains are identified as <i>N. osmanthi</i>. This represents the first record of <i>N. osmanthi</i> from <i>J. regia</i>. However, further pathogenicity tests are required to confirm the pathogenic causes of leaf spot symptoms.</p> |
| format | Recurso digital |
| id | zenodo_https___doi_org_10_5281_zenodo_19744518 |
| institution | Zenodo |
| language | |
| publishDate | 2026 |
| publisher | Zenodo |
| record_format | zenodo |
| spellingShingle | Nigrospora osmanthi Mei Wang & L. Cai Wang, Xing-Chang Zhang, Rui-Nan Norphanphoun, Chada Wang, Si-Bo Zou, Meng-Ting Guo, Shi-Qi Sun, Jing-E Wang, Jia-Ping Wijayawardene, Nalin N. Hyde, Kevin D. Wang, Yong Liu, Feng-Quan Biodiversity Taxonomy Fungi Ascomycota Sordariomycetes Xylariales Apiosporaceae Nigrospora Nigrospora osmanthi <p><i>Nigrospora osmanthi</i> Mei Wang & L. Cai, Persoonia 39: 135 (2017).</p><p>Fig. 16</p><p><b>Substrate and distribution.</b></p><p><i>Ficus pandurata</i>, China (Liu et al. 2019); <i>Hedera nepalensis</i>, China (Wang et al. 2017); Water Lettuce, China (Lin et al. 2023); <i>Stenotaphrum secundatum</i> China (Mei et al. 2019); <i>Orthosiphon stamineus</i>, Malaysia (Ismail et al. 2022); <i>Artemisia argyi</i>, China (Yang et al. 2025); <i>Cirsium setosum</i>, <i>Phyllostachys nigra</i>, <i>Phragmites australis</i>, <i>Rosa chinensis</i>, China (Hao et al. 2020). Other distributions such as Colombia, Croatia, Iran, Malaysia, Saudi Arabia, South Africa, and United States recorded in GBIF.</p><p><b>Description.</b></p><p>Associated with leaf spots of <i>Juglans regia</i>. Circular or irregular lesions, ranging from yellowish-brown to dark brown with yellow halos. <b>Sexual morph</b>: Not observed. <b>Asexual morph</b>: On SNA, <i>Hyphae</i> 3.5–7 µm wide, branched, septate, hyaline to dark brown, smooth. <i>Conidiophores</i> reduced to conidiogenous cells. <i>Conidiogenous cells</i> 5.8–8.7 × 4.1–6.6 µm (x ̄ = 7.0 × 5.2 μm, n = 30), subglobose, monoblastic, pale green to brown. <i>Conidia</i> 10.2–12.3 × 8.3–10.9 µm (x ̄ = 11.4 × 9.5 μm, n = 30), globose to subglobose, aseptate, solitary, brown to black, smooth, shiny.</p><p><b>Culture characteristics.</b></p><p>Colonies after 7 days at 25 ° C: On PDA, colonies reach 90 mm diam., flat, spreading, dense aerial mycelia, with regular margins, surface and reverse white. On MEA, colonies reach 90 mm diam., flat, spreading, dense aerial mycelia, regular margins, surface and reverse pale vinaceous grey. On CMA, colonies reach 90 mm diam., flat, spreading, regular margins, surface and reverse pale vinaceous grey. On SNA, colonies reach 88–90 mm diam., flat, spreading, aerial mycelia scant, regular margins filamentous, surface and reverse pale vinaceous grey. On WA, colonies reach 52–55 mm diam., flat, spreading, with erose and irregular margin, surface and reverse pale vinaceous grey. On OA, colonies reach 90 mm diam., flat, spreading, dense aerial mycelia, with regular margins, surface mouse grey and reverse center dark mouse grey and margin saffron. Sporulation was abundant only on SNA after 14 days.</p><p><b>Material examined.</b></p><p>China • Yunnan Province, Chuxiong City, on the diseased leaves of <i>Juglans regia</i> with spots, 23 March 2024, M. T. Zou, HGUP 25-0062; GUCC 25-0130, GUCC 25-0131, GUCC 25-0132 and GUCC 25-0133.</p><p><b>Notes.</b></p><p><i>Nigrospora osmanthi</i> was first observed on <i>Osmanthus</i> sp. in Jiangxi Province, China (Wang et al. 2017). In this study, four strains (GUCC 25-0130, GUCC 25-0131, GUCC 25-0132, and GUCC 25-0133) were isolated from leaf spots of <i>J. regia</i>. Phylogenetic analysis revealed that these two strains clustered with the type strain of <i>N. osmanthi</i> (CGMCC 3.18126) and strain LC 4467, showing no significant genetic divergence. Morphologically, our isolates exhibited characteristics consistent with those described for <i>N. osmanthi</i> (Wang et al. 2017). Based on the combined morphological and phylogenetic evidence, the four strains are identified as <i>N. osmanthi</i>. This represents the first record of <i>N. osmanthi</i> from <i>J. regia</i>. However, further pathogenicity tests are required to confirm the pathogenic causes of leaf spot symptoms.</p> |
| title | Nigrospora osmanthi Mei Wang & L. Cai |
| topic | Biodiversity Taxonomy Fungi Ascomycota Sordariomycetes Xylariales Apiosporaceae Nigrospora Nigrospora osmanthi |
| url | https://doi.org/10.5281/zenodo.19744518 |