Japanese Fungi on Plants No.48 before next top
Pseudocochliobolus verruculosus Tsuda & Ueyama [=Curvularia verruculosa Tandon & Bilgrami]
Classification: Ascomycota, Locuoascomycetes, Dothideales, Pleosporaceae
Distributed mainly south from Kyushu, the southern part
of Japan. Causes brown spot on rhodesgrass and often isolated other gramineous
weeds. Disperses by scattering conidia. Teleomorph has never been observed in nature.
Characteristics: Plant pathogen
Morphology: Teleomorph: Produced by paired culture on artificial media. Producing cylindrical asci in black pseudothecia on stroma. Hyaline and filamentous ascospores of 120-220 x 3.7-5 um produced in coiled helix in oblong asci. Anamorph: On brown conidiophores, producing conidia curved, pale brown to brown, ellipsoidal to fusiform, the third cell swollen, the end cell pale, hilum not conspicuous, surface verruculose, 27-33 x 11-15 um, with 2-3 pseudosepta. |
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Cunidiophore and conidia | Conidia |
Herbarium specimen in NIAES
Specimen No. | Scientific name | Host name | Host scientific name | Symptoms | Geographical origin | Collected date | Collector |
135-1-37 | Curvularia verruculosa | chloris | Chloris sp. | Brown spot | Ishigaki, Okinawa | 2002.2.21 | Tsukiboshi, T. |
135-1-38 | " | rhodesgrass | Chloris gayana | " | " | 2003.2.20 | " |
(Described by Tsukiboshi, T., NIAES, Microbial Systemtics Lab., 2003)
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