Japanese Fungi on Plants No.19 before next top

Cochliobolus carnbonum Nelson [=Bipolaris zeicola (Stout) Shoem.]
Classification: Ascomycota, Locuoascomycetes, Dothideales, Pleosporaceae

Distributed mainly north from Chubu and Tokai, the central part of Japan. Causes northern corn leaf spot and race 3 parasitize rice, too. Sometimes isolated from other gramineous plants and weeds. Disperses by scattering conidia. Teleomorph has never been observed in nature.

Characteristics: Plant pathogen   Symptom: JPEG (Corn, Northern leaf spot, race 3, 41kb)

				Morphology:  Teleomorph: Produced by paired culture on artificial media. Producing cylindrical asci in black pseudothecia. Hyaline and filamentous ascospores of 180-307 x 6-10 um produced in coiled helix in asci.  Anamorph: On brown to dark brown conidiophores,  producing conidia straight or curved, olive brown to brown, fusiform to cylindrical, 30-100 x 12-18 um, with 6-12 pseudosepta.
Ascospores	Cinidia	Colony on V8 juice agar

Herbarium specimen in NIAES  None

(Described by Tsukiboshi, T., NIAES, Microbial Systemtics Lab., 2002)

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