Japanese Fungi on Plants No.52 before next top
Puccinia purpurea Cooke
Classification: Basidiomycota, Urediniomycetes, Uredinales,
Pucciniaceae
Distributed south from Kanto, the central part of Japan.
Causes
rust of the Sorghum plants, producing uredospores and teliospores on the hosts.
Spermogonial and aecial stages are unknown in Japan, but reported to occur on
the Oxalis plants in other countries. Disperses by scattering uredospores and
overwinter by teliospores. Never grow on aritificial media.
Characteristics: Plant pathogen Symptom: JPEG
(Sorghum, Rust, 45kb)
Morphology: Spermogonial stage: Unknown Aecial stage: Unknown Uredial stage: Uredospores produced in uredinia, ellipsoid to ovoid, echinulate, light brown to chestnut- brown, 26-40 x 23-32 um, germ pores 5-8 scattered on the surface. Teleuto stage: Teliospores ellipsoid, chestnut-brown, (1-)2 celled, slightly constricted at the septum, 37-55 x 22-33 um, pedicels hyaline and persistence. |
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Uredospores(U) and Teliospores(T) |
Herbarium specimen in NIAES None
(Described by Tsukiboshi, T., NIAES, Microbial Systemtics Lab., 2002)
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