Isolation and Identification the soil bacteria produced siderophores and effect the NaCl in inhibition for some pathogenic bacteria species
ANBAR JOURNAL OF AGRICULTURAL SCIENCES,
2007, Volume 5, Issue 2, Pages 305-311
AbstractThe aim of this study to investigation about bacterial isolates which produce of siderophores from Al-Anbar governorate soils include Heet , Haditha , Anah , and Qaim and determination the efficient isolate in this function to using it in inhibition some pathogenic bacteria . The effect of salinity of the efficient of siderophores production and efficacy in inhibition for some pathogenic bacteria were done in this study too.
The 28 isolates were collected in this study include Azotobacter ,Rhizobium , Azomonas and Pseudomonas . This isolates subjected to siderophores production test . the results showed there are different ability for this isolates to siderophores production . 23 isolates are capable to siderophores production which are Azotobacter ,Rhizobium and Pseudomonas.
The media supernatants for this isolates shown different efficiency in inhibition for pathogenic bacteria . All supernatants was inhibited to Staphylococcus (100mM) but different inhibition levels showed to Streptococcus , E.coli and Pseudomonas .
The A4 isolate (Azotobacter) show a high efficacy in siderophores production under concentration 1 , 2 , 3 mM NaCl . 1 mM is best concentration to siderophores production which inhibited Staphylococcus but none Streptococcus , E.coli & Pseudomonas .
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