Japanese Fungi on Plants
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Claviceps
sorghicola Tsukiboshi, Shimanuki & Uematsu
Classification: Ascomycota, Pyrenomycetes, Hypocreales, Clavicipitaceae
Distributed south from Kanto, the central part, and recorded only in
Japan. Causes ergot disease on Sorghum plants producing ergot
(sclerotia) on the panicles. Ergots drop on the ground, overwinter and easily germinate
with stromata in the next spring. Disperses by scattering conidia produced in
the honeydew from the diseased flowers.
Characteristics: Plant pathogen Symptom: JPEG
(Sorghum, Ergot, Inoculated, 44kb)
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 |
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Morphology:
Teleomorph: Producing
stromata with a brown stipe and dark brown capitula, 4-18 mm in height from
blackish purple ergot (sclerotia). Ascocarp
embedded on the surface of capitula, pyriform, producing cylindrical asci
inside. Ascospores hyaline, filiform, 92-205 x 0.5-1 um.
Anamorph: Many conidia produced on the surface of
sclerotia and in the honeydew, hyaline, ellipsoid, 5-11 x 2.5-3.8 um.
Secondary conidia have not been reported in nature. |
| Stromata on a sclerotium |
Ascocarp in stromata and asci (longitudinal
section) |
Conidia |
|
|
Herbarium specimen in NIAES
| Specimen No. |
Scientific name |
Host name |
Host scientific name |
Symptoms |
Geographical origin |
Collected date |
Collector |
NIAES20510
(Holotype) |
Claviceps sorghicola |
Sorghum |
Sorghum bicolor |
Ergot |
Nishinasuno, Tochigi |
1988.12.1 |
Tsukiboshi, T. |
135-1-23
(Paratype) |
" |
" |
" |
" |
Yokkaichi, Mie |
1990.11.1 |
Oomomo, S. |
135-1-24
|
" |
" |
" |
" |
Nishigoushi, Kumamoto |
1992.10 |
Tsukiboshi, T. |
135-1-43
|
" |
" |
" |
" |
Onsen, Hyougo |
2003.10.28 |
Tsukiboshi, T. |
(Described by Tsukiboshi, T., NIAES, Microbial Systemtics Lab.,
2002)
Copyright of the page belongs to
Natural Resources Inventory Center, NIAES.
