Isolation and characterization of 23 carbofuran-degrading bacteria from soils from distant geographical areas


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Abstract

The aim of this work was to isolate, identify and type carbofuran-degrading bacteria from two geographically distant soils. Restriction Fragment Length Polymorphism (RFLP) patterns of the 16S rRNA gene and partial 16S rRNA sequence analysis were used to classify the 23 isolates obtained. Nine of them showed high similarity to Pseudomonas strains, seven showed similarity to the Flexibacter/Cytophaga/Bacteroides group and the remainder showed similarity to other bacterial genera. Isolates within the same group were sub-typed by comparing partial 16S rRNA sequences and SDS-PAGE analysis of their total protein profiles. Many of the UK isolates showed similarity to the Pseudomonas genera, while most of the Greek isolates showed similarity to the Flexibacter/Cytophaga/Bacteroides group. Only two Chrysobacterium strains isolated from both the UK and Greek soils were identical.

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