Current situation and characterization of Pseudomonas syringae pv. actinidiae on kiwifruit in Galicia (northwest Spain). (11th September 2013)

• Record Type: Journal Article
• Authors: Abelleira, A.; Ares, A.; Aguín, O.; Picoaga, A.; López, M. M.; Mansilla, P.
• Is Part Of: Plant pathology. Volume 63:Number 3(2014:Jun.)
• Page Start: 691
• Page End: 699
• Publication Date: 2013-09-11
• Subjects: Agricultural pests -- Periodicals; Plant diseases -- Periodicals; 632
• DOI: 10.1111/ppa.12125
• Languages: English
• ISSNs: 0032-0862

Abstract

<abstract abstract-type="main" id="ppa12125-abs-0001"> <title> <x xml:space="preserve">Abstract</x> </title> <p>Bacterial canker of kiwifruit, caused by <italic>Pseudomonas syringae</italic> pv<italic>. actinidiae</italic> (Psa), is a disease that is spreading rapidly in several kiwifruit‐producing countries, causing significant economic losses. In 2011, it was detected for the first time in Spain, in the south of Galicia (northwest Spain). Kiwifruit orchards were therefore inspected and sampled in 2011 and 2012 to determine the pathogen distribution, and the isolates obtained were characterized by morphology, fatty acids profile, biochemical tests and molecular techniques. Isolates were obtained from <italic>Actinidia deliciosa</italic> 'Hayward' (from leaves, canes, flower buds, fruits and roots), from <italic>A. deliciosa</italic> 'Summer', from <italic>Actinidia chinensis</italic> 'Jin Tao' (from canes and leaves) and from <italic>A. chinensis</italic> pollinator 'Belén' (from canes). Results of the analysis of the <italic>cfl</italic> gene (phytotoxin production‐related), the <italic>tox–argK</italic> gene cluster and phylogenetic analysis of the <italic>cts</italic> gene demonstrated that all Psa isolates from northwest Spain correspond to the Psa3 population, which includes strains of haplotype 2. This is the first record of Psa3 and haplotype 2 in Spain.</p> </abstract>