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Dothiorella omnivora isolated from grapevine with trunk disease symptoms in Hungary

Kálmán Zoltán Váczy, Márk Z. Németh, Anett Csikós, Gábor M. Kovács, Levente Kiss

During a four-year project conducted to identify fungal species associated with grapevine trunk diseases (GTDs) in Hungarian vineyards, two non-sporulating strains isolated from vines exhibiting typical GTD symptoms were identified as Dothiorella omnivora based on their nrDNA ITS and EF1-α sequences. Conidial production of these strains was induced on pine needle medium where production of spermatia has also been observed. Pathogenicity tests confirmed their virulence on potted vines. Dothiorella omnivora is a recently described species of the Botryosphaeriaceae, known to infect hazelnut, ash, walnut, and other woody hosts. This is the first European record of D. omniovora from vines exhibiting GTD symptoms. 

(Kalman Zoltan Vaczy)
Published on: 05/09/2017
European logoThis project has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement N°652601
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