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Distribution of Streptomycin Resistant Strains of Erwinia amylovora in Egypt during 1988
Author(s) -
ElGoorani M. A.,
ElKasheir H. M. A.,
Shoeib Alia A.,
Hassanein Ferial M.
Publication year - 1989
Publication title -
journal of phytopathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 60
eISSN - 1439-0434
pISSN - 0931-1785
DOI - 10.1111/j.1439-0434.1989.tb04504.x
Subject(s) - streptomycin , erwinia , biology , fire blight , pear , microbiology and biotechnology , population , bacteria , antibiotics , botany , genetics , medicine , environmental health
A survey of the occurrence of strains of Erwinia amylovora resistant to streptomycin in certain Egyptian pear orchards was earned out during April and May 1988. Twenty‐two isolates out of 604 isolates collected from 11 orchards showed resistance to streptomycin. All the streptomycin resistant (Str r ) strains isolated in the present work were resistant to high levels of streptomycin with minimal inhibitory concentrations ranging from 1000 to 3000 μg/ml. The occurrence of Str r strains in Egypt is still limited and the population of resistant strains was at relatively low level. However, such occurrence of E. amylovora with resistance to streptomycin is a potentially serious situation.