Figure. Pseudophialophora angusta (WSF14RG40). A–C. Conidiophores and conidia. Scale bars: A–C = 10 µm.
Pseudophialophora angusta J. Luo & N. Zhang.
MycoBank: MB811707.
Asexual state phialophora-like. On CMA, hyphae branched, septate, hyaline to yellowish, smooth. Conidiophores micronematous, single or branched. Conidiogenous cells phialidic, curved, hyaline to yellowish, 7–25 × 2–3 µm. Conidia aggregated in slimy heads, oblong ellipsoidal, straight or slightly curved, aseptate, hyaline, smooth, 7.5–10 × 1.5–2.5 µm. Sexual state unknown.
Colonies on PDA 2.3 cm diam after 7 days at 25 °C in dark; surface velvety, sulphur yellow; aerial mycelium yellowish; reverse pale greenish yellow. Colonies on CMA 1.9 cm after 7 days at 25 °C in dark; surface sulphur yellow; aerial mycelium sparse; reverse light greenish yellow (Description from Luo et al., 2015b).
Typification: Holotype RUTPPWSF14RG40. Ex-holotype culture WSF14RG40.
Gene sequences: KP769825 (18S), KP769841 (ITS), KP769833 (28S), KP784816 (MCM7), KP784824 (RPB1), KP784832 (TEF1).
Specimens examined: USA, New Jersey, Wharton State Forest, N 39 46.136, W 074 40.885, alt. 40 m, from roots of Dichanthelium acuminatum, 26 Jun. 2014, J. Luo and N. Zhang, WSF14RG40 (RUTPPWSF14RG40).
Hosts/substrates: From roots of Dichanthelium acuminatum (Poaceae).
Distribution: USA (New Jersey).
Copyright 2022 by The American Phytopathological Society. Reproduced, by permission, from Luo, J., and Zhang, N. 2022. The Rice Blast Fungus and Allied Species: A Monograph of the Fungal Order Magnaporthales (https://my.apsnet.org/APSStore/Product-Detail.aspx?WebsiteKey=2661527A-8D44-496C-A730-8CFEB6239BE7&iProductCode=46826). American Phytopathological Society, St. Paul, MN.