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First Detection of Root Rot and Foliar Blight on Pittosporum ( P ittosporum tenuifolium ) Caused by P ythium irregulare in Italy
Author(s) -
Guarnaccia Vladimiro,
Hansen Zachariah R.,
Aiello Dalia,
Smart Christine D.,
Polizzi Giancarlo
Publication year - 2015
Publication title -
journal of phytopathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 60
eISSN - 1439-0434
pISSN - 0931-1785
DOI - 10.1111/jph.12290
Subject(s) - biology , oomycete , blight , root rot , pathogenicity , botany , internal transcribed spacer , horticulture , pathogen , microbiology and biotechnology , gene , ribosomal rna , biochemistry
During 2013, a new root rot and leaf blight was detected on potted P ittosporum tenuifolium cv. ‘ S ilver Q ueen’ plants in a nursery located in the C atania province (eastern S icily, I taly). On the basis of morphological and cultural features as well as internal transcribed spacer sequence data, the causal agent was identified as P ythium irregulare . K och's postulates were fulfilled by pathogenicity tests carried out on potted P . tenuifolium cv. ‘ S ilver Q ueen’ plants. To our knowledge, this is the first detection of P . irregulare root rot and foliar blight disease on P . tenuifolium in E urope, and it is the first detection using molecular methods for this oomycete pathogen in I taly.