Etiology of crown gall on fruit trees in Poland
1996
Sobiczewski, P. (Research Institute of Pomology and Floriculture, Skierniewice (Poland))
All Agrobacterium tumefaciens isolated from tumors occurring on roots of various species of fruit trees originating from 6 nurseries located in various regions of Poland belonged to biovar 2. Of 41 isolates investigated, 29 were sensitive to agrocin 84, the bacteriotoxin produced by strain K84 of A. radiobacter. In spite of the various origins of tumorigenic bacteria - different host plants and localities - they showed no pathogenic specialization and caused crown gall both on sunflower and tomato seedlings and on sour cherry shoots cultured in vitro
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