Japanese Fungi on Plants No.34 before next top
J.C.Guerber & J.C.Correll [=Colletotrichum acutatum Simmonds ex Simmonds]
Classification: Ascomycota, Pyrenomycetes, Phyllachorales, Phyllachoraceae
Distributed widely in Japan except for Hokkaido, the most northern part of
Japan. An omnivorous plant pathogen and causes anthracnose diseases in various
flowers, vegetables and fruits more than 50 species. Produces acervuli on the surface of leaves,
scattering conidia inside by wind and rain. Teleomorph is observed only in
Characteristics: Plant pathogen Symptom: JPEG (Blueberry, Anthracnose, 23kb)
Teleomorph: Produced by paired culture on artificial media. Ascocarp spherical to obpyriform, 125-313 um in width, producing unitunicate and clavate asci inside. Ascospores hyaline, single celled, oblong to ellipsoidal, 8.5-25.1 x 3.1-8.1 um, with blunt ends.
Anamorph: In acervuli, producing conidial mass of orange to pink. Conidia, single cell, hyaline, fusiform, tapered towards the both ends, 8.5-16.5 x 2.5-4 um in size. Apressorium brown, obovate to clavate, often smooth in edge, 8.5-10 x 4.5-6 um in size.
Upper: surface, lower: reverse
Herbarium specimen in NIAES None
(Described by Yoshida, S., NIAES, Microbial Systemtics Lab., 2002)
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