Japanese Fungi on Plants (original) (raw)
Japanese Fungi on Plants No.12 before next top
Blumeria graminis (DC.) Speer [Erysiphe graminis DC.]
Classification: Ascomycota, Pyrenomycetes, Erysiphales, Erysiphaceae
Widely distributed in Japan and causing powdery mildew in gramineous plants. Infects various crops, barley, wheat and etc. in addition to gramineous weeds, rescuegrass, wheatgrass, etc. Parasitic specialized strains are differentited for each plant and grouped as formae specialis (f. sp.). Produces ascocarps and conidia on leaves and absorbing nutrition by haustoria in leaf tissue cells. Disperses by scattering conidia and ascospores. Never grow on synthetic media.
Characteristics: Plant pathogen Symptom: JPEG (Ryegrass, Powdery mildew, 54kb)
Herbarium specimen in NIAES
Specimen No. | Scientific name | Host name | Host scientific name | Symptoms | Geographical origin | Collected date | Collector |
---|---|---|---|---|---|---|---|
103-2-7 | Blumeria graminis f.sp. hordei | Barley | Hordeum vulgare | Powdery mildew | Fukuoka | 1937 | Kawamura, E. |
103-1-13 | Blumeria graminis | Wheat | Triticum aestivum | " | Nishigahara, Tokyo | 1942.5.23 | Ozoe, S. |
103-1-14 | " | " | " | " | Hatano, Kanagawa | 1942.6.9 |
(Described by Tsukiboshi, T., NIAES, Microbial Systemtics Lab., 2002)
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