Isolation and pathogenicity of Xylella fastidiosa associated to the olive quick decline syndrome in southern Italy - M. Saponari, D. Boscia, G. Altamura, G. Loconsole, S. Zicca, G. D'Attoma, M. Morelli, F. Palmisano, A. Saponari, D. Tavano, V. N. Savino, C. Dongiovanni, G. P. Martelli (2017)