Sorbus domestica and S. torminalis - new hosts of Erwinia amylovora in Serbia | Sorbus domestica i S. torminalis novi domacini Erwinia amylovora u Srbiji
2008
Gavrilovic, V., Institut za zastitu bilja i zivotnu sredinu, Beograd (Serbia) | Zivkovic, S., Institut za zastitu bilja i zivotnu sredinu, Beograd (Serbia) | Ivanovic, Z., Institut za zastitu bilja i zivotnu sredinu, Beograd (Serbia) | Vojinovic, M., Agrorazvoj, Nis (Serbia)
Fireblight symptoms were observed on ornamental plants Sorbus domestica (region of Nis (Serbia), 2005) and Sorbus torminalis (Pozega (Serbia), 2007). Symptoms appeared as leaves and shoots blight followed with cancer forming on branches of S. domestica and shoot bligt on S. torminalis. Levan type single colony were collected after three days growth on nutrient agara enrichnet with sucrose (SNA). Investigated strains produced HR in tobacco and necrosis of artificially inoculated unriped pear fruits followed by oozing of bacterial exudate. Symptoms similar to those registered in natural infections, were recorded on articifial inoculated S. domestica leaves and shoots. Based on the results of pathogenicity tests, biochemical characteristics, ELISA test and PCR analysis it was confirmed that the investigated strains belonged to E. amylovora, widespread pathogen of pome fruit trees and ornamental plants in Serbia. This is the first report of Erwinia amylovora as pathogen of Sorbus plant in Serbia.
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