Characterization of two antagonistic strains ofRahnella aquatilis isolated from soil in egypt

被引:16
作者
H. H. Ei-Hendawy
M. E. Osman
N. M. Sorour
机构
[1] Faculty of Science,Botany and Microbiology Department
[2] Helwan University,undefined
[3] Ain Helwan,undefined
关键词
Serratia Marcescens; Siderophore Production; Bacteriocin Production; Indicator Bacterium; Antagonistic Bacterium;
D O I
10.1007/BF02931517
中图分类号
学科分类号
摘要
In an attempt to obtain biological control agents for controlling bacterial spot of cucumber, over 250 bacterial strains were isolated from agricultural soil samples, collected from different localities in Giza Governorate (Egypt) and screened forin vitro antibiosis towardsXanthomonas campestris. Only 2 strains showed antagonistic activity. They and their culture filtrates restricted the growth of a number of G− and G+-indicator bacteria. On Chrome Azurol S agar, both strains exhibited a marked siderophore production.Biolog plates identified these strains asRahnella aquatilis. Their characteristics were studied and compared with literature data onR. aquatilis. This antagonistic bacterium has not been previously isolated in Egypt.
引用
收藏
页码:799 / 804
页数:5
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