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Pseudophialophora eragrostis - An E-monograph of the Fungal Order Magnaporthales: Taxonomy, Molecular Phylogeny, and Biogeography

Pseudophialophora eragrostis

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Figure. Pseudophialophora eragrostis (CM12m9). A–C. Conidiophores and conidia. Scale bars: A–C = 10 µm.

Pseudophialophora eragrostis J. Luo & N. Zhang.

MycoBank: MB807081.

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, 3–19 × 2–3.7 μm. Conidia aggregated in slimy heads, oblong ellipsoidal to ellipsoidal, straight or slightly curved, aseptate, hyaline, smooth, 7.5–10.5 × 2–3.5 μm. Sexual state unknown.

Colonies on PDA 2.7 cm diam after 7 days at 25 °C in dark; surface velvety to floccose, grass green; aerial mycelium yellowish; reverse cossack green. Colonies on CMA 1.6 cm after 7 days at 25 °C in dark; surface Scheele’s green; aerial mycelium sparse; reverse peacock green (Description from Luo et al., 2014).

Typification: Holotype RUTPPCM12m9. Ex-holotype culture CM12m9.

Gene sequences: KF689598 (18S), KF689648 (ITS), KF689638 (28S), KF689608 (MCM7), KF689618 (RPB1), KF689628 (TEF1).

Genome sequences: SRX798634 (transcriptome).

Specimens examined: USA, New Jersey, Colliers Mills, from roots of Eragrostis, 30 Aug 2012, J. Luo and N. Zhang, CM12m9 (RUTPPCM12m9); ibid., from roots of Poaceae, 30 Aug 2012, J. Luo and N. Zhang, CM20m5-2.

Hosts/substrates: From roots of 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.