T1 Polyphasic Analysis of Isolates from Kiwifruit Reveal New Genetic Lineages of Pseudomonas syringae pv. actinidifoliorum Look-Alike
A1 Morán, Félix
A1 Marco-Noales, Ester
A1 Landeras, Elena
A1 Roselló, Montserrat
A1 Abelleira, Adela
A1 Gonzalez, Ana
A1 López, María M.
K1 pathovars
K1 MLSA
K1 virulence
K1 classification
K1 linage
K1 H20  Plant diseases
K1 Actinidia deliciosa
K1 Pseudomonas syringae
AB Currently, kiwifruit cultivation arouses great economic interest in the agricultural sector in several countries of the European Union due to high consumer demand and good results achieved in terms of production potential and fruit quality. One of the main bacterial species that cause yield losses in kiwifruit plants is Pseudomonas syringae. Diseases such as bacterial canker, caused by pathovar (pv.) actinidiae; floral bud necrosis caused by pv. syringae and leaf spots caused by pv. actinidifoliorum (Pfm) are clear examples. Between 2014 and 2017, in the main kiwifruit producing areas in the north and east of Spain, several surveys were carried out in search of these pathogens. Analyses realized from symptomatic and asymptomatic plants of Actinidia deliciosa revealed the existence of new bacterial isolates close to Pfm. These new isolates werelow virulence pathogens similar to Pfm but belonging to a new group of P. syringae that affected the leaves of A. chinensis var. deliciosa. This study focused on the characterization and classification of these new isolates by a polyphasic approach in order to provide more information for understanding how the different populations of P. syringae affecting kiwifruit. They had the phenotypic characteristics of Pfm but by molecular approaches, they constituted a supported genetic lineage closely-related to Pfm independent of the five lineages described so far. This work revealed the great diversity found in P. syringae speciesaffecting kiwifruit plants and supports the hypothesis that Pfm is a low virulence pathogen which is long established in Europe.
PB MDPI
SN 2073-4395
YR 2021
FD 2021
LK http://hdl.handle.net/20.500.11939/7811
UL http://hdl.handle.net/20.500.11939/7811
LA en
NO Morán, F., Marco-Noales, E., Landeras, E., Roselló, M., Abelleira, A., Gonzalez, A. J. et al. (2021). Polyphasic Analysis of Isolates from Kiwifruit Reveal New Genetic Lineages of Pseudomonas syringae pv. actinidifoliorum Look-Alike. Agronomy, 11(12): 2464. https://doi.org/10.3390/agronomy11122464
DS MINDS@UW
RD May 27, 2022