Japanese Fungi on Plants No.1 before next top
alternata (Fr.) Keiss.
Classification: Deuteromycotina, Hyphomycetes
Distributed widely in Japan. Frequently isolated as a leaf inhabitant on various plants and causes brown spot of tobacco, black leaf spot of strawberry and etc. Disperses by scattering conidia. Teleomorph unknown, but thought to be the genus Lewia.
Characteristics: Plant pathogen, Leaf inhabitant
Anamorph: On conidiophores pale brown to olive brown, producing conidia pale brown to light brown, obclavate to obpyriform or ellipsoid, short beak at the tip, surface smooth to verruculose, 20-63 x 9-18 um in size, with several vertical and -8 transverse septa. Produced in an often branched, long chain more than 5 conidia.
Herbarium specimen in NIAES
|Specimen No.||Scientific name||Host name||Host scientific name||Symptoms||Geographical origin||Collected date||Collector|
|257-2-21||Alternaria alternata||Tobacco||Nicotiana tabacum||Brown spot||Oota, Ibaraki||1902.7.12|
(Described by Tsukiboshi, T., NIAES, Microbial Systemtics Lab., 2002)
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