Articles
CHARACTERIZATION OF TURKISH ISOLATES OF ERWINIA AMYLOVORA (BURR.) WINSLOW ET AL.
Article number
489_18
Pages
127 – 132
Language
Abstract
Fire Blight has been known in Turkey for 13 years and spread rapidly throughout the country in ten years.
Surveys conducted between 1986 and 1991 showed that pear, quince and medlar trees were most severely affected while damage to apple and loquat trees was less severe.
Fifty six pathogenic strains of Erwinia amylovora were isolated from diseased pear, quince, apple, medlar and loquat trees from 27 major pome fruit growing provinces in Turkey during the surveys.
The characteristics of 56 Turkish isolates; colony morphology on nutrient sucrose agar and selective media (CCT, TTN and MMS), some biochemical characters, copper and streptomycin sensitivity were determined.
All isolates grew on the media tested and 4 isolates differed in colony character.
All isolates gave negative reaction for growth at 36°C, H2S from cysteine, nitrate reduction, indole production, urease activity, and they did not produce acid from inositol, a-methyl glucoside and lactose.
Variable results were obtained from the utilization of arabinose, melibiose, rhamnose, salicin, sorbitol, trehalose and xylose.
None of the strains tested were resistant to streptomycin or copper.
The joint findings were described and compared with those of other authors.
Surveys conducted between 1986 and 1991 showed that pear, quince and medlar trees were most severely affected while damage to apple and loquat trees was less severe.
Fifty six pathogenic strains of Erwinia amylovora were isolated from diseased pear, quince, apple, medlar and loquat trees from 27 major pome fruit growing provinces in Turkey during the surveys.
The characteristics of 56 Turkish isolates; colony morphology on nutrient sucrose agar and selective media (CCT, TTN and MMS), some biochemical characters, copper and streptomycin sensitivity were determined.
All isolates grew on the media tested and 4 isolates differed in colony character.
All isolates gave negative reaction for growth at 36°C, H2S from cysteine, nitrate reduction, indole production, urease activity, and they did not produce acid from inositol, a-methyl glucoside and lactose.
Variable results were obtained from the utilization of arabinose, melibiose, rhamnose, salicin, sorbitol, trehalose and xylose.
None of the strains tested were resistant to streptomycin or copper.
The joint findings were described and compared with those of other authors.
Publication
Authors
K. Benlioglu, M. Özakman
Keywords
fire blight, Turkey
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