Characterization and Pathogenicity of Botryosphaeriaceae species isolated from almond trees on the Island of Mallorca (Spain)

In this study, 31 almond orchards with trees showing severe decline symptoms were surveyed from 2009 to 2014 on the island of Mallorca (Spain). In all, 45 Botryosphaeriaceae isolates were collected and characterized based on phenotypical features and comparisons of DNA sequence data of the nuclear ribosomal DNA-internal transcribed spacer region and elongation factor 1-α gene. Five species were identified as Diplodia olivarum, D. seriata, Neofusicoccum luteum, N. mediterraneum, and N. parvum. Pathogenicity tests were performed on four cultivars (‘Pons’, ‘Vivot’, ‘Jordi’, and ‘Ferragnes’) under field conditions for two consecutive years (2013 to 2014), and confirmed that all five species cause canker and dieback of almond, with Neofusicoccum spp. more virulent than Diplodia spp. in both years. Jordi was less sensitive to fungal infection in 2013. First reports from almond in Spain include N. mediterraneum and N. luteum.

Bibliographic Details

Main Authors:	Olmo, Diego, Armengol, Josep, León, Maela, Gramaje, David
Other Authors:	CSIC - Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA)
Format:	artículo biblioteca
Language:	English
Published:	American Phytopathological Society 2016-12-30
Online Access:	http://hdl.handle.net/10261/193392 http://dx.doi.org/10.13039/100007652 http://dx.doi.org/10.13039/501100000780
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