Diversity and pathogenicity of pestalotioid fungi associated with blueberry plants in Portugal, with description of three novel species of Neopestalotiopsis

• Tipo: Artigo em Revista Científica Internacional
• Data: 2021

Autores

Santos, J (Autor) Outra; Hilario, S (Autor) Outra; Pinto, G (Autor) Outra; Alves, A (Autor) Outra

Revista

A Revista está pendente de validação pelos Serviços Administrativos.

Título: EUROPEAN JOURNAL OF PLANT PATHOLOGY

Vol. 162

Páginas: 539-555

ISSN: 0929-1873

Indexação

ISI Web of Knowledge - 0 Citações

Scopus - 0 Citações

Outras Informações

ID Authenticus: P-00V-R02

DOI: 10.1007/s10658-021-02419-0

Abstract (EN): Blueberries (Vaccinium corymbosum) have been increasingly cultivated in Portugal. Although blueberry is known to be susceptible to twig blight and dieback caused by pestalotioid fungi, there is still scarce information regarding this issue. To bridge this gap, a survey on blueberry plantations in Portugal was carried out to assess the diversity of pestalotioid fungi associated with symptomatic blueberry plants. A collection of 51 fungal isolates was characterized by multilocus sequence analyses of the rDNA internal transcribed spacer region (ITS), translation elongation factor 1-alpha (tef1-alpha) and beta-tubulin (tub2). The phylogenetic analyses revealed the presence of Pestalotiopsis australis, P. biciliata, P. chamaeropis, Neopestalotiopsis rosae and three novel species described as Neopestalotiopsis scalabiensis, N. vaccinii and N. vacciniicola. The new species were fully characterized based on their morphology and temperature growth requirements. The pathogenicity trials carried out on cultivar "Duke" revealed that all isolates tested were pathogenic to blueberry plants, with N. rosae being the most aggressive species. This study provides the first report of P. chamaeropis, P. biciliata and P. australis associated with blueberry dieback and twig blight symptoms in Portugal and worldwide. Additionally, N. rosae is also newly reported from Portugal. This survey disclosed the occurrence of several pestalotioid species, which may represent a threat to Portuguese blueberry plantations.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 17