Fecha/hora: 01/06/2024 02:51:59

Biblioteca(s): | INIA Las Brujas.
Tipo de la producción científica: | Artículos en Revistas Indexadas Internacionales
Circulación/Nivel: | Internacional - --
Fecha corriente: | 11/08/2016
Fecha de la última actualización: | 07/02/2017
Autoria: | SESSA, L.; ABREO, E.; BETTUCCI, L.; LUPO, S.
Afiliación: | LUCÍA SESSA, Universidad de la República (UdelaR)/ Facultad de Ciencias; EDUARDO RAUL ABREO GIMENEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; LINA BETTUCCI, Universidad de la República (UdelaR)/ Facultad de Ciencias; SANDRA LUPO, Universidad de la República (UdelaR)/ Facultad de Ciencias.
Título: | Botryosphaeriaceae species associated with wood diseases of stone and pome fruits trees: symptoms and virulence across different hosts in Uruguay.
Año de publicación: | 2016
Fuente/Imprenta: | European Journal of Plant Pathology, 2016, v. 146 (3), p.519-530.
DOI: | 10.1007/s10658-016-0936-4
Idioma: | Inglés
Notas: | Accepted: 11 April 2016 / Article First Online: 22 April 2016

Contenido:

ABSTRACT.

Apple, pear and peach orchards are usually planted in close proximity, and they might share pathogenic fungal species affecting different plant organs. In particular, species of Botryosphaeriaceae have been indicated as responsible for wood diseases in these fruit species. Symptoms frequently observed in Uruguay include papyraceous cankers in apple trunks, dead shoots in pears, and gummosis in peach shoots and branches. Symptomatic tissues of these species were sampled, and fungi resembling species within Botryosphaeriaceae were isolated and identified based on phylogenetic analysis of the internal transcribed spacer region (ITS), part of the translation elongation factor 1-&#945; gene (EF1-&#945;) and part of the RNA polymerase II subunit gen (RPB2). Pathogenicity of selected isolates was assessed under laboratory and field  onditions. Botryosphaeria dothidea, Diplodia seriata and Neofusicoccum parvum were isolated from the three hosts from symptomatic tissues. However, only N. parvum proved to be pathogenic when inoculated on trees of all three species, while D. seriata showed pathogenicity towards apple and peach trees only. Diplodia mutila and N. australe were isolated less frequently and not from all the host species. However, they were the most virulent based on lesion length on all tested plant species. The fact that fungal isolates obtained from one host could cause disease symptoms also in some of the alternative hosts suggests that cross infections are possible between apple, pear and peach trees. Finally, Diplodia pseudoseriata in Prunus persica and Diplodia mutila in Pyrus communis, are new records for these hosts in Uruguay.

@ Koninklijke Nederlandse Planteziektenkundige Vereniging 2016

Palabras-Clave: | APPLE; FUNGI; PEACH; PEAR; WOOD DISEASE.
Thesagro: | DURAZNO; MANZANA; PERA.
Categoría del tema: | --
Registro original: | INIA Las Brujas (LB)
Ejemplares: | LB - (101072-1) - PXI - AP - DD -  -  -  - DIS