IDENTIFICATION AND SPREAD OF ERWINIA-AMYLOVORA ON PEAR IN TURKEY
PLANT DISEASE, vol.76, no.11, pp.1114-1116, 1992 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 76 Issue: 11
- Publication Date: 1992
- Doi Number: 10.1094/pd-76-1114
- Journal Name: PLANT DISEASE
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Agricultural & Environmental Science Database, BIOSIS, CAB Abstracts, EMBASE, Environment Index, Food Science & Technology Abstracts, MEDLINE, Veterinary Science Database
- Page Numbers: pp.1114-1116
- Akdeniz University Affiliated: No
Abstract
Diagnostic and pathogenicity tests of two isolates of bacteria from blighted pear trees in Turkey were compared with tests of known isolates of Erwinia amylovora. Turkish isolates formed orange-yellow colonies with deep orange centers and clear margins on modified Miller-Schroth medium; they did not fluoresce under ultraviolet light when grown on King's medium B. Bacterial ooze was produced on immature pear fruit, and susceptible pear shoots were blighted in 6 days. Based on these tests, the two Turkish isolates were positively identified as Erwinia amylovora. The pattern of spread of fire blight in the Middle East, the Balkans, and the Mediterranean area since 1982 suggests that infections in Turkey may be part of an expanding epidemic originating in Egypt.