Japanese Fungi on Plants No.61 before next top
Setosphaeria
rostrata Leonard [=Exserohilum rostratum (Drechsler) Leonard &
Suggs]
Classification: Ascomycota, Locuoascomycetes, Dothideales, Pleosporaceae
Distributed mainly south from Kanto, the central part
of Japan. Often isolated as an leaf inhabitant on grasses, and also reported as
a plant pathogen on warm season grasses. Disperses by scattering conidia. Teleomorph has never been observed
in nature.
Characteristics: Leaf inhabitant, Plant pathogen
Morphology: Teleomorph: Produced by paired culture on artificial media. Producing cylindrical to clavate asci in black pseudothecia with setae around the beak. Ascospores hyaline to light brown, fusiform, constricted at the septa, 29-85 x 9-21 um produced in asci. Anamorph: On olive brown conidiophores, producing conidia straight or curved, olive brown to brown, oblong to narrowly obclavate, hilum protrudent at the base, 15-200 x 7-29 um, with -18 pseudosepta. |
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Conidia |
Herbarium specimen in NIAES
Specimen No. | Scientific name | Host name | Host scientific name | Symptoms | Geographical origin | Collected date | Collector |
135-1-15 | Exserohilum rostratum | Panicum | Panicum sp. | leaf spot (indistinct) | Ishigaki, Okinawa | 2002.2.18 | Tsukiboshi, T. |
(Described by Tsukiboshi, T., NIAES, Microbial Systemtics Lab., 2002)
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