Japanese Fungi on Plants No.58 before next top
tritici-repentis (Died.) Drechsler [=Drechslera
tritici-repentis (Died.) Shoem.]
Classification: Ascomycota, Locuoascomycetes, Dothideales, Pleosporaceae
Distributed mainly north from Kanto, the central Distr. Causes yellow spot of wheat and stripe of wheatgrass. Sometimes isolated from other grasses or gramineous weeds. Disperses by scattering conidia. Teleomorph produced on the over-wintering stems.
Characteristics: Plant pathogen
Teleomorph: Pseudothecia with setae around beak. In cylindrical asci, producing ascospores hyaline to pale yellow brown, boat-shaped, 42-69 x 14-29 um in size with 1-2 vertical and 3 transverse septa.
Anamorph: On pale yellow brown conidiophores, producing conidia subhyaline to yellow brown, cylindrical or slightly curved with both ends round and tip cell snake-head shaped, 75-250 x 14-20 um in size with 1-9 pseudosepta.
Conidia (in vitro)
Herbarium specimen in NIAES
|Specimen No.||Scientific name||Host name||Host scientific name||Symptoms||Geographical origin||Collected date||Collector|
|135-1-20||Drechslera tritici-repentis||Wheatgrass||Agropyron sp.||Stripe||Asyoro, Hokkaodo||2002.8.27||Tsukiboshi, T.|
(Described by Tsukiboshi, T., NIAES, Microbial Systemtics Lab., 2002)
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