Characterization of Phaeoacremonium isolates associated with Petri disease of table grape in Northeastern Brazil, with description of Phaeoacremonium nordesticola sp. nov.
- da Silva, M.A. 2
- Correia, K.C. 1
- Barbosa, M.A.G. 3
- Câmara, M.P.S. 2
- Gramaje, D. 4
- Michereff, S.J. 2
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1
Universidade Federal do Cariri
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2
Universidade Federal Rural de Pernambuco
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- 3 Embrapa Semiárido, Petrolina, PE, Brazil
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4
Instituto de Ciencias de la Vid y del Vino
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ISSN: 0929-1873
Año de publicación: 2017
Volumen: 149
Número: 3
Páginas: 1-15
Tipo: Artículo
Otras publicaciones en: European Journal of Plant Pathology
Resumen
This study aims to identify and characterize species of Phaeoacremonium associated with Petri disease of table grapes in three regions in the Northeastern Brazil, to investigate the distribution of the species in these regions and to evaluate their pathogenicity and aggressiveness in excised green shoots of table grapes. Fungal identifications were made using a combination of morphology together with a phylogenetic analysis based on portions of the β-tubulin (TUB2) and actin (ACT) genes. Three species of Phaeoacremonium (Pm.) were identified: Pm. minimum, Pm. nordesticola sp. nov. and Pm. parasiticum. Phaeoacremonium minimum and Pm. parasiticum had previously been reported in grapevine. Phaeoacremonium minimum was the most prevalent species. All species of Phaeoacremonium were pathogenic on detached shoots of table grape, with Pm. minimum being the most aggressive. © 2017 Koninklijke Nederlandse Planteziektenkundige Vereniging