الفهرس | Only 14 pages are availabe for public view |
Abstract λ-cyhalothrin is a widely used synthetic pyrethroid and its persistence in plant, soil and water exerts a detrimental effect on the human as well as environment. Under greenhouse conditions, limited work has been done examining the microbial degradation of λ-cyhalothrin together with plant growth promotion. In this study, 43 bacterial strains were isolated from heavily polluted soil with λ-cyhalothrin by the enrichment technique. The plant growth promotion characteristics of all isolates were evaluated. The results revealed that five isolates were potential in λ-cyhalothrin biodegradation at high concentration (1200 mg/L) within only 24 hours together with their high plant growth promotion abilities. The morphological, biochemical and 16S rRNA gene sequence analyses identified the isolates as Bacillus subtilis strains. The GC/MS analysis revealed that the selected isolates reached high levels of degradation after only two days, the degradation percentage was ranged from 95.72-99.52% after 48 hours of incubation |