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

Pyricularia penniseticola

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Figure. Pyricularia penniseticola (CBS138603). A–B. Conidiophores. C–E. Conidia. Scale bars: A–E = 20 µm.

Pyricularia penniseticola Klaubauf, M.-H. Lebrun & Crous, Stud. Mycol. 79: 114 (2014).
MycoBank: MB810220.

On CMA with sterile rice seeds, hyphae branched, septate, hyaline, smooth, 1.5–2.5 μm diam. Conidiophores solitary, erect, straight or curved, branched, 2–5-septate, medium brown, smooth, 120–330 × 4–6 μm. Conidiogenous cells integrated, terminal or intercalary, light brown, smooth, 65–120 × 3–5.5 μm, with several protruding denticles, 1–1.5 × 1–2 µm. Conidia solitary, pyriform to obclavate, 2-septate, light brown, smooth, 25–33 × 9–10.5 μm, with a truncate hilum, 0.5–1.5 × 1–2 µm.

Colonies on 4.5 cm diam PDA after 7 days at 25 °C in dark; surface iron grey; reverse olivaceous black. Colonies on MEA 3 cm diam after 7 days at 25 °C in dark; surface light olivaceous grey; reverse olivaceous black. Colonies on CMA 3 cm diam after 7 days at 25 °C in dark. Colonies on OA 3.6 cm diam after 7 days at 25 °C in dark; surface sectoring (Description from Klaubauf et al., 2014).

Typification: Holotype CBSH21843. Ex-holotype culture CBS138603 (ML0031).

Gene sequences: KM484929 (ITS), KM485220 (ACT), KM485148 (RPB1).

Specimens examined: Mali, Segou field 2, from Digitaria exilis, 14 Sep. 1990, J.L. Nottéghem, culture CBS138603.

Hosts/substrates: On Digitaria exilis and Pennisetum (Poaceae).

Distribution: Burkina Faso, Ivory Coast, Mali.

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.