Abstract
The increasing use of cypermethrin in agricultural fields, household and industrial applications for effective pest control had increased the global burden of the pollutant over the years. Consequently, there is an urgent need to devise techniques to eliminate this pollutant from the environment. A bacterium capable of degrading cypermethrin has been successfully screened and characterized. The bacterium was grown in a mineral salt medium (MSM) supplemented with cypermethrin as its sole carbon and energy source at an optimum pH 7.5, temperature 40 ºC, a carbon source concentration of 4 g/L, optimum incubation time of 24 h and an inoculum size of 400 µL. The potential of Morganella sp. to degrade cypermethrin makes it an important instrument for the degradation of cypermethrin. This knowledge may be useful for the optimization of environmental conditions for cypermethrin bioremediation and important for detoxification of cypermethrin polluted sites.
Highlights
Cypermethrin is globally among the most widely synthetic insecticides used for agricultural and domestic purposes
Screening of Cypermethrin-Degrading Bacterium Several previously isolated and cultured bacterial strains were screened for their ability to use cypermethrin as the sole carbon and energy source
The result shows that Morganella sp. had the best cypermethrin-degrading potential by exhibiting higher tolerance to cypermethrin and faster growth in the mineral salt medium (MSM) supplemented with cypermethrin (1000 mg/L) on agar plates for 48 h of incubation at 37 oC and pH 7 (Table 1)
Summary
Cypermethrin (a pyrethroid, C22H19Cl2NO3) is globally among the most widely synthetic insecticides used for agricultural and domestic purposes. Cypermethrin has been identified as one of the important constituents of pesticides associated with human health risks. It is extensively used in cotton, fruit, and vegetable crops as well as in animal health, home and garden pest control worldwide [1]. There is quite a number of reports on the use of microorganisms for cypermethrin degradation, until present, there has been no report on the isolation cypermethrin-degrading bacteria from Northern Nigeria, even though the region is dominated by agricultural activities This emphasizes the need to develop cost-effective strategies for the removal of toxic residues from the environment, the need to identify and characterize an endogenous microorganism with cypermethrin-degrading potential
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
