UFYMA 27844
UNIDAD DE FITOPATOLOGIA Y MODELIZACION AGRICOLA
Unidad Ejecutora - UE
artículos
Título:
First report of ?Candidatus Phytoplasma pyri?-related strain causing pear decline in Argentina
Autor/es:
CONCI, LUIS; FERNANDEZ, FRANCO
Revista:
CROP PROTECTION
Editorial:
ELSEVIER SCI LTD
Referencias:
Lugar: Amsterdam; Año: 2019
ISSN:
0261-2194
Resumen:
Pear decline (PD) is an important disease affecting pear production worldwide and ?Candidatus Phytoplasmapyri? (subgroup 16SrX-C) is the etiological agent of this disease. In Argentina, typical symptomatology of PD wasdescribed in pear trees located in Río Negro province. Infected trees showed leaf redness and loss of vigor. NestedPCR assays targeting the 16S rRNA gene (R16F2n/R16R2) were performed to detect the presence of phytoplasmasin ~69% of total symptomatic samples. Virtual and actual RFLP patterns of PD Argentinean isolatesshared 100% of coincidence with RFLP profile of the subgroup 16SrX-C. Moreover, identity similarity andphylogenetic analyses of partial 16S rRNA sequence showed that PD phytoplasma described in this paper is a?Ca. P. pyri?- related strain. To the best of our knowledge, this is the first report on ?Ca. P. pyri? affecting pears inArgentina.
