Japanese Fungi on Plants No.22 before next top

Cochliobolus intermedius Nelson [=Curvularia intermedia Boedijn]
Classification: Ascomycota, Locuoascomycetes, Dothideales, Pleosporaceae

 Distributed widely in Japan, causing discolored grains of rice and Curvularia leaf blight of sorghum. Often isolated from heads and etc. of other gramineous plants such as wheat. Disperses by scattering conidia. Teleomorph has never been observed in nature. 

Characteristics: Plant pathogen

Morphology:
 Teleomorph: Produced by paired culture on artificial media. Producing cylindrical asci in black pseudothecia. Hyaline and filamentous ascospores of 165-330 x 5-10 um produced in coiled helix in oblong asci.
 Anamorph: On light brown conidiophores,  producing conidia slightly curved, ellipsoidal to fusiform, the middle cells brown, the end cells pale brown, hilum not conspicuous, surface smooth, the middle septum thicker, 27-40 x 13-20 um, with 3 pseudosepta.

Conidia

Herbarium specimen in NIAES None

(Described by Tsukiboshi, T., NIAES, Microbial Systemtics Lab., 2003)


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