Japanese Fungi on Plants No.33 before next top

Gibberella fujikuroi (Saw.) Ito apud Ito & Kimura [=Fusarium moniliforme Sheldon]
Classification: Ascomycota, Pyrenomycetes, Hypocreales, Hypocreaceae

 Widely distributed in Japan. Causes Bakanae disease of rice and scab of corn and is frequently isolated as a leaf inhabitant from various plants. It may be utilized as a biocontrol agent for restricting plant diseases. Disperses by scattering conidia. Ascospores found only on dead plants.

Characteristics: Plant inhabitant, Plant pathogen 

 Teleomorph: Ascocarp dark blue, producing ellipsoid to clavate asci inside. Ascospores hyaline, ellipsoid, 14-18 x 4.5-6 um with 1-2(-3) septa.
 Anamorph: Microconidia produced on phialides, catenate, hyaline, oblong, 5-12 x 1.5-2.5 um, with 0(-1) septum. Macroconidia produced in acervuli, hyaline, long fusoid, tapered to the ends, straight or cueved, 25-60 x 2.5-4 um with 3-7 septa.
Macroconidia and microconidia Catenate microconidia

Herbarium specimen in NIAES

Specimen No. Scientific name Host name Host scientific name Symptoms Geographical origin Collected date Collector
256-1-10 Gibberella fujikuroi  Rice Oryza sativa Bakanae disease 1900.8.25 Hori, S.
256-1-25 " " " " Itabasgi, Tokyo 1937.7.17
101-1-26 " " " " Takigawa, Hokkaido 1941.8.7 Asuyama, H.

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

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