Japanese Fungi on Plants No.3 before next top

Alternaria solani (Ellis & Martin) Sorauer
Classification: Deuteromycotina, Hyphomycetes

Distributed widely in Japan. Causes early blight of Solanaceae plants such as potato, tomato and eggplant. Disperses by scattering conidia. Teleomorph unknown.

Characteristics: Plant pathogen

Morphology:
 Teleomorph: Unknown
 Anamorph: On conidiophores pale brown to olive brown, producing solitary conidia pale brown to pale golden brown, obclavate to oblong, with a beak longer than the body, surface smooth,150-300 x 15-19 um in size, with several vertical and 9-11 transverse septa. Beak flexuous, pale, sometimes branched, 2.5-5 um thick and tapered to the end.
Conidia

Herbarium specimen in NIAES

Specimen No. Scientific name Host name Host scientific name Symptoms Geographical origin Collected date Collector
104-1-79 Alternaria solani potato Solanum tuberosum early blight Harashima, Fukuoka  1930.6.14  Kwamura, E.
114-1-72 " tomato Lycopersicon esculentum " Syakujii, Tokyo 1932.7.30
244-1-102 " potato Solanum tuberosum " Hramachi, Fukushima 1938.6 Kwamura, E.
244-1-46  " " " "

(Described by Tsukiboshi, T., NIAES, Microbial Systemtics Lab., 2003)


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