Japanese Fungi on Plants No.60 before next top
Setosphaeria
monoceras Alcorn [=Exserohilum monoceras (Drechsler) Leonard &
Suggs]
Classification: Ascomycota, Locuoascomycetes, Dothideales, Pleosporaceae
Distributed widely in Japan. Causes leaf blight of the genus Echinochloa,
such as barnyardgrass, etc. and utilized as a biocontrol agent for the weeds.
The genus Oryza also recorded as a host. Disperses by scattering conidia. Teleomorph has never been observed
in nature.
Characteristics: Plant pathoge Symptom: JPEG
(Barnyardgrass, Leaf blight, 45kb)
Morphology: Teleomorph: Produced by paired culture on artificial media. Producing cylindrical to clavate asci in black pseudothecia with setae. Ascospores hyaline, fusiform to oblong, 45-75 x 11-20 um produced in asci. Anamorph: On dark olive brown conidiophores, producing conidia straight or curved, pale brown to olive brown, fusiform, hilum protrudent at the base, 60-150 x 15-25 um, with 4-10 pseudosepta. |
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Conidium |
Herbarium specimen in NIAES
Specimen No. | Scientific name | Host name | Host scientific name | Symptoms | Geographical origin | Collected date | Collector |
135-1-16 | Exserohilum monoceras | Barnyardgrass | Echinochloa crus-galli var. aristata | Leaf blight | Tsuruoka, Yamagata | 2002.9.19 | Yoshida, S. |
135-1-17 | " | Barnyardgrass | Echinochloa crus-galli | " | Sapporo, Hokkaido | 2002.8.30 | Tsukiboshi, T. |
(Described by Tsukiboshi, T., NIAES, Microbial Systemtics Lab., 2002)
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