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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

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Record number 443325
Title Opening the Pandora's box called Mycosphaerella
Author(s) Crous, P.W.; Groenewald, J.Z.
Source In: Book of Abstracts 10th International Congress of Plant Pathology, Beijing, China, 25-30 August 2013. - - p. 541 - 541.
Event 10th International Congress of Plant Pathology: Bio-security, food safety and plant pathology, 25-30 August 2013, Beijing, China, 2013-08-25/2013-08-30
Department(s) Laboratory of Phytopathology
Publication type Abstract in scientific journal or proceedings
Publication year 2013
Abstract Phytopathogenic fungi that are mycosphaerella-like in morphology (Capnodiales, Dothideomycetes) represent close to 50 genera that are distributed over several families, including Cladosporiaceae, Dissoconiaceae, Mycosphaerellaceae and Teratosphaeriaceae. These genera represent a range of nutritional modes, being either plant pathogenic, lichenized, saprobic, or parasitic on other fungi or animals. In the strict sense the genus Mycosphaerella only applies to species with Ramularia anamorphs. Well-known model organisms such as the Sigatoka leaf spot disease complex of bananas involves members of the genus Pseudocercospora, while the septoria leaf blotch complex of cereals involve members of Zymoseptoria. Not only are most of the genera in the Mycosphaerella complex poly- or paraphyletic, but most of the known pathogens actually represent complexes of cryptic taxa that vary in their geographic distributions. A further interesting phenomenon that is common to phytopathogenic species in the Capnodiales is the co-occurrence of different species from the same or different genera in a single leaf lesion or stem canker. This finding has important implications for trade in agricultural and forestry produce, as pathogens of different hosts can be introduced into new environments on non-host material, which they colonise as secondary organisms.
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