Japanese Fungi on Plants No.56 before next top
Pyrenophora erythrospila
Paul
[=Drechslera erythrospila (Drechsler) Shoem.]
Classification: Ascomycota, Locuoascomycetes, Dothideales,
Pleosporaceae
Distributed mainly in the central to northern part of Japan.
Causes leaf
spot in the gramineous plants of Agrostis such as bentgrass, redtop and other
weeds. Disperses by scattering conidia. Teleomorph hardly observed
in nature.
Characteristics: Plant pathogen
Morphology: Teleomorph: Pseudothecia black with setae around beak. In clavate asci, producing ascospores of pale yellow brown, ellipsoid, 33-70 x 18-28 um in size with 0-2 vertical and 3 transverse septa. Anamorph: Conidiophores yellowish brown. Conidia pale yellowish brown to olive brown, cylindrical, straught or slightly cirved, 40-70 x 11-13 um with 2-10 pseudosepta. |
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Conidiophores | Conidia |
Herbarium specimen in NIAES
Specimen No. | Scientific name | Host name | Host scientific name | Symptoms | Geographical origin | Collected date | Collector |
250-2-31 | Drechslera erythrospila | Redtop | Agrostis alba | Leaf spot | Nishinasuno, Tochigi | 1961.5.26 | Tominaga, T. |
108-1-166 | " | " | " | " | Nishinasuno, Tochigi | 1961.8.6 | " |
108-1-167 | " | " | " | " | Saku, Nagano | 1961.9.13 | " |
(Described by Tsukiboshi, T., NIAES, Microbial Systemtics Lab., 2002)
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