TY - JOUR
T1 - Soilborne diseases caused by Fusarium and Neocosmospora spp. on ornamental plants in Italy
AU - Guarnaccia, Vladimiro
AU - Aiello, Dalia
AU - Polizzi, Giancarlo
AU - Crous, Pedro W.
AU - Sandoval-Denis, Marcelo
N1 - Funding Information:
The authors thank Dr Pietro Formica for support with specimen collection and fungal isolations. This research was funded by Research Project 2016-2018 “Emergent Pests and Pathogens and Relative Sustainable Management Strategies”, financed by University of Cata-nia.
Publisher Copyright:
© 2019 Guarnaccia V., Aiello D., Polizzi G., Crous P.W., Sandoval-Denis M.
Copyright:
Copyright 2019 Elsevier B.V., All rights reserved.
PY - 2019
Y1 - 2019
N2 - During surveys conducted in 2010-2014, several disease symptoms were observed on eight ornamental plant species in different nurseries located in Sicily (Southern Italy). Two Neocosmospora and 31 Fusarium isolates were recovered from symptomatic plants. Fungus identification was based on morphological characteristics and phylogenetic analyses of fragments of the intergenic spacer (IGS), internal transcribed spacer (ITS) and large subunit (LSU) regions of the rDNA; partial fragments of the beta-tubulin (TUB), RNA polymerase largest subunit (RPB1), RNA polymerase second largest subunit (RPB2) and translation elongation factor 1-alpha (EF-1α) genes. The Fusarium species recovered from ornamental plants were F. agapanthi (from Agapanthus africanus), F. anthophilum (Dasylirion longissimum), F. fujikuroi (Trachycarpus princeps), F. oxysporum (Bougainvillea glabra, Cordyline australis 'Purpurea', Dasylirion longissimum, Eremophila laanii and Philoteca myoporoides) and F. proliferatum (T. princeps), while N. solani was isolated from crown and root rot of Ficus carica. The pathogenicity of representative isolates collected from each host was tested on seedlings or cuttings grown in a growth chamber. All the Fusarium and Neocosmospora isolates tested were pathogenic and reproduced symptoms identical to those observed in the field, except for F. fujikuroi on T. princeps and F. oxysporum on D. longissimum that were non-pathogenic.
AB - During surveys conducted in 2010-2014, several disease symptoms were observed on eight ornamental plant species in different nurseries located in Sicily (Southern Italy). Two Neocosmospora and 31 Fusarium isolates were recovered from symptomatic plants. Fungus identification was based on morphological characteristics and phylogenetic analyses of fragments of the intergenic spacer (IGS), internal transcribed spacer (ITS) and large subunit (LSU) regions of the rDNA; partial fragments of the beta-tubulin (TUB), RNA polymerase largest subunit (RPB1), RNA polymerase second largest subunit (RPB2) and translation elongation factor 1-alpha (EF-1α) genes. The Fusarium species recovered from ornamental plants were F. agapanthi (from Agapanthus africanus), F. anthophilum (Dasylirion longissimum), F. fujikuroi (Trachycarpus princeps), F. oxysporum (Bougainvillea glabra, Cordyline australis 'Purpurea', Dasylirion longissimum, Eremophila laanii and Philoteca myoporoides) and F. proliferatum (T. princeps), while N. solani was isolated from crown and root rot of Ficus carica. The pathogenicity of representative isolates collected from each host was tested on seedlings or cuttings grown in a growth chamber. All the Fusarium and Neocosmospora isolates tested were pathogenic and reproduced symptoms identical to those observed in the field, except for F. fujikuroi on T. princeps and F. oxysporum on D. longissimum that were non-pathogenic.
KW - Morphology
KW - Multigene phylogeny
KW - Pathogenicity
KW - Root rot
KW - Wilt
UR - http://www.scopus.com/inward/record.url?scp=85065974846&partnerID=8YFLogxK
U2 - 10.13128/Phytopathol_Mediterr-23587
DO - 10.13128/Phytopathol_Mediterr-23587
M3 - Article
AN - SCOPUS:85065974846
SN - 0031-9465
VL - 58
SP - 127
EP - 137
JO - Phytopathologia Mediterranea
JF - Phytopathologia Mediterranea
IS - 1
ER -