Diaporthe species associated with Vaccinium, with specific reference to Europe

Lorenzo LOMBARD, Gerard C.M. van LEEUWEN, Vladimiro GUARNACCIA, Giancarlo POLIZZI, Patricia C.J. van RIJSWICK, Karin C.H.M. ROSENDAHL, Jutta GABLER, Pedro W. CROUS

Abstract


Species of the genus Vaccinium are commercially cultivated in Europe for their berries, which are highly valued for dietary and pharmaceutical properties. Cultivation is severely limited due to a range of fungal diseases, especially those caused by species of Diaporthe. A number of Diaporthe isolates have been collected from Vaccinium growing regions in Europe, and initially identified as D. vaccinii based on host association. Using DNA sequence inference of the combined β-tubulin, calmodulin, translation elongation factor 1-alpha and the internal transcribed spacer region of the nuclear rDNA, along with morphological characteristics, six species were characterised. Diaporthe eres, D. vaccinii and D. viticola are known species and three novel taxa are described here as D. asheicola, D. baccae and D. sterilis. This study is the first confirmed report of D. vaccinii in Latvia and the Netherlands.


Keywords


Diaporthe vaccinii; quarantine

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DOI: http://dx.doi.org/10.14601/Phytopathol_Mediterr-14034



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