Biodegradation of spinetoram (pesticide) by consortium of Bacillus licheniformis and Bacillus pumilus isolates

Abstract

Spinetoram is the management of insect pests that affect vegetable crops growing in greenhouses and outdoors. It was produced first in 2007 by fermentation product of Saccharopolyspora spinose (C₄₂H₆₉NO₁₀). The current study describes the effectiveness of bacterial isolated from Iraqi environments, to remove spinetoram. Genetic analysis (16S rRNA) revealed that these strains are Bacillus licheniformis and Bacillus pumilus. Four temperatures (25, 30, 35, 40) ^oC and pH values (5,7,9) were chosen for this study, and three concentrations of spinetoram (400, 800, 1200) mg/L were used. The spinetoram showed that the best biodegradation by consortium of Bacillus licheniformis and Bacillus pumilus was at a temperature of 35 ^oC and pH 9 while the removal percentages were 99%, at 400 mg/L of spinetoram. The study's findings demonstrated the potential and importance of using aerobic biodegradation to remove spinetoram pesticides from agricultural soils. This consortium's capacity to break down pesticides makes it a valuable bioremediation tool.