Japanese Fungi on Plants No.5 before next top
Ascochyta
sorghi Sacc.
Classification: Deuteromycotina, Coelomycetes
Collected in Tochigi Pref., Kanto Distr., the central part of Japan. Causes rough leaf spot of sorghum and is thought to be isolated from other Sorghum plants. Produces pycnidia on the leaves and disperses by scattering pycnidiospores inside. Teleomorph unknown.
Characteristics: Plant pathogen Symptom: JPEG (Sorghum, Rough leaf spot, 70kb)
Morphology: Teleomorph: Unknown Anamorph: Pycnidia lighr brown to brown, spherical to subspherical, producing many pycnidiodpores inside. Pycnidiospores hyaline, broad ellipsoid to oblong, round at the ends, 16-21 x 6-8 um, with (0-)1 septum. |
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Pycnidia and pycnidiospores (longitudinal section, after staining) |
Pycnidiospores | Colony |
Herbarium specimen in NIAES
Specimen No. | Scientific name | Host name | Host scientific name | Symptoms | Geographical origin | Collected date | Collector |
135-1-32 | Ascochyta sorghi | Sorghum | Sorghum bicolor | Rough leaf spot | Nishinasuno, Tochigi | 2000.9 | Tsukiboshi, T. |
(Described by Tsukiboshi, T., NIAES, Microbial Systemtics Lab., 2002)
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