From Growth Inhibition to Ultrastructural Changes: Toxicological Assessment of Lambda Cyhalothrin and Fosetyl Aluminium against Bacillus subtilis and Pseudomonas aeruginosa

Environ Res. 2024 Apr 17:118958. doi: 10.1016/j.envres.2024.118958. Online ahead of print.ABSTRACTIn modern agricultural practices, agrochemicals and pesticides play an important role in protecting the crops from pests and elevating agricultural productivity. This strategic utilization is essential to meet global food demand due to the relentless growth of the world's population. However, the indiscriminate application of these substances may result in environmental hazards and directly affect the soil microorganisms and crop production. Considering this, an in vitro study was carried out to evaluate the pesticides' effects i.e. lambda cyhalothrin (insecticide) and fosetyl aluminum (fungicide) at lower, recommended, and higher doses on growth behavior, enzymatic profile, total soluble protein production, and lipid peroxidation of bacterial specimens (Pseudomonas aeruginosa and Bacillus subtilis). The experimental findings demonstrated a concentration-dependent decrease in growth of both tested bacteria, when exposed to fosetyl aluminum concentrations exceeding the recommended dose. This decline was statistically significant (p <.000). However, lambda cyhalothrin at three times of recommended dose induces 10 % increase in growth of Pseudomonas aeruginosa (P. aeruginosa) and 76.8 % decrease in growth of Bacillus subtilis (B. subtilis) respectively as compared to control. These results showed the stimulatory effect of lambda cyhalothrin on P. aeruginosa and inhibitory effect ...
Source: Environmental Research - Category: Environmental Health Authors: Source Type: research