Japanese Fungi on Plants No.35 before next top

Glomerella cingulata (Stoneman) Spaulding & Schrenk [=Colletotrichum gloeosporioides (Penzig) Penzig & Saccardo]
 Classification: Ascomycota, Pyrenomycetes, Phyllachorales, Phyllachoraceae

 Distributed widely in Japan. An omnivorous plant pathogen and causes anthracnose diseases in many plants. Produces perithecia and acervuli on the surface of leaves and disperses by scattering ascospores and conidia inside by wind and rain. The type species of the genus Glomerella and the anamorph is known as a typical complex species.

Characteristics: Plant pathogen    Symptom: JPEG (Broadleaf dock, Anthracnose, 77kb)

Morphology:
 Teleomorph: Ascocarp spherical to subspherical, producing  unitunicate and cylindrical asci inside. Ascospores hyaline, single- celled,  ellipsoidal to fusiform, 12-28~4-7 um.
 Anamorph: In acervuli, producing salmon-colored conidial mass. Conidia, single-celled, hyaline, cylindrical, 9-24 x 3-4.5 um in size. Apressorium brown, clavate to irregular-shaped, irregular in edge, 6-20 x 4-12 um in size. The morphology of the colony varies in wide ranges.
Ascocarp and asci Conidia Colony

Herbarium specimen in NIAES 

Specimen No. Scientific name Host name Host scientific name Symptoms Geographical origin Collected date Collector
135-1-35 Glomerella cingulata Broadleaf dock Rumex obtusifolius Anthracnose Fukagawa, Hokkaido 2002.8 Tsukiboshi, T.

(Described by Yoshida, S., NIAES, Microbial Systemtics Lab., 2002)


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