Microdochium setariae Y. X. Shang, Q. Y. Liu, X. G. Zhang & Z. Li 2026, sp. nov.

作者：Qiyun Liu, Yuxin Shang, Jinyang Yuan, Zhaoxue Zhang, Congcong Ai, Ji-Wen Xia, Xiu-Guo Zhang, Zhuang Li · 发表于：Zenodo (CERN European Organization for Nuclear Research) · 年份：2026 · DOI：10.5281/zenodo.20663711 · 研究领域：Plant Pathogens and Fungal Diseases、Mycorrhizal Fungi and Plant Interactions、Powdery Mildew Fungal Diseases

Microdochium setariae Y. X. Shang, Q. Y. Liu, X. G. Zhang & Z. Li sp. nov. Fig. 13 Etymology. The specific epithet “ setariae ” refers to the host plant Setaria viridis. Type. CHINA • Guangxi Zhuang Autonomous Region, Liuzhou City, Guting Mountain Forest Park, on leaves of Setaria viridis, 15 April 2025, Y. X. Shang (holotype HSAUP 18044-7), ex-type culture SAUCC 18044-7 = CGMCC 3.29420. Description. On leaves of Setaria viridis. Asexual morph: Mycelium mostly immersed, hyphae hyaline, septate, smooth, 1.6–3.3 μm wide. Conidiomata sporodochial, giving rise to orange conidial mass. Conidiophores reduced to conidiogenous cells. Conidiogenous cells terminal and intercalary, monoblastic, cylindrical to doliiform, 3.98–8.18 × 1.53–2.49 μm (av. = 5.38 ± 2.43 × 1.87 ± 0.54 μm, n = 11). Conidia lunate, fusiform or reniform, straight or curved, 4.17–6.66 × 1.86–2.76 μm (av. = 5.36 ± 0.69 × 2.16 ± 0.29 μm, n = 25). Chlamydospores not observed. Sexual morphs unknown, see Fig. 13. Culture characteristics. Colonies on PDA. 24–25 mm in diameter after 7 d at 25 ° C in darkness, with a growth rate of 3.4–3.6 mm / day, undulate at edge, white in obverse, yellowish white in reverse. Additional specimen examined. CHINA • Guangdong Province, Guangzhou City, Conghua District, on diseased leaves of Microstegium vimineum, 01 May 2025, Y. X. Shang (HSAUP 17215-3), living culture SAUCC 17215-3. CHINA • Guangxi Zhuang Autonomous Region, Liuzhou City, Guting Mountain Forest Park, on diseased leaves of ...