Japanese Fungi on Plants No.53 before next top
Pyrenophora
bromi (Died.) Drechsler [=Drechslera bromi (Died.)
Shoem.]
Classification: Ascomycota, Locuoascomycetes, Dothideales,
Pleosporaceae
Distributed in Hokkaido, the most northern Ditr. Causes leaf
spot in bromegrass. Disperses by scattering conidia. Teleomorph hardly observed
in nature.
Characteristics: Plant pathogen Symptom: JPEG
(Bromegrass, Leaf spot, 42kb)
Morphology: Teleomorph: Producing cylindrical asci in black perithcia, ascopores of hyaline to yellowish brown, oblong, 48-72 x 14-23 um in size with septa 1-2 vertical and 3 transverse in ascus. Anamorph: Conidiophores yellowish brown. Producing conidia of subhyaline to pale yellowish brown, cylindrical, a little tapering towards the base, 100-250 x 14-26 um with 4-8 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 |
249-1-71 | Drechslera bromi | Smooth bromegrass | Bromus inermis | Leaf spot | Kunneppu, Hokkaido | 1969.9.1 | Tominaga, T. |
249-1-72 |
" |
" |
" | " | " | " | " |
135-1-18 |
" |
" |
" | " | " | 2002.8.27 | Tsukiboshi, T. |
(Described by Tsukiboshi, T., NIAES, Microbial Systemtics Lab., 2002)
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