Hız, Pınar | Erdem, Meltem | Büyükgüzel, Ender | Büyükgüzel, Kemal

Article | 2016 | KAFKAS UNIVERSITESI VETERINER FAKULTESI DERGISI22 ( 5 ) , pp.777 - 784

Greater wax moth, Galleria mellonella L. is most commonly used as model insects for studying insecticidal efficiency of chemicals as well as it has been known as an alternative model to mamalian model for studying microbial infections and clinical drugs. The effects of a fluoroquinolone antibacterial agent, gemifloxacin, on sex ratio, male and female adult longevity, fecundity and hatchability of this insect were investigated by rearing the first instar larvae on artificial diets in the laboratory condition. The insect was reared from first-instar larvae to adult stage on an artificial diets containing gemifloxacin at 0.001, 0.01, 0 . . ..1 or 1.0%. Gemifloxacin did not affect male and female sex ratio and adult longevity while it significantly decreased egg number. Fecundity and hatchability were significantly and inversely decreased by increasing gemifloxacin concentrations. The females reared from control diet produced 134.46 per day, whereas high concentrations of gemifloxacin decreased the egg number to 26.75 and 53.5. Hatchability was also significantly decreased by 0.01% and above concentrations of gemifloxacin whereas, the highest concentration of antibiotic lowered the hatchability to 53.71%. This study indicated sublethal effects of gemifloxacin are likely to have a significant impact on adult biological traits and these effects show concentration-dependent variation in biological traits of the insect Daha fazlası Daha az

Erdem, Meltem | Büyükgüzel, Ender | Büyükgüzel, Kemal

Article | 2016 | Journal of Entomological Science51 ( 4 ) , pp.305 - 313

he fruit fly Drosophila melanogaster (Meigen) (Diptera: Drosophilidae) is often used in various biological, molecular, and toxicological studies. Sodium tetraborate, a boron compound, was added to the artificial diet of developing D. melanogaster to determine its effects on adult longevity and fecundity. Insects reared from first instars to adults on diets containing 10, 30, 150, 300, or 400 mg/liter sodium tetraborate showed that the highest concentration (400 mg/liter) significantly reduced female longevity (31.65 6 4.02 [mean 6 SD] d for the controls versus 1.87 6 0.30 d for 400 mg/liter) and male longevity (32.80 6 1.96 d for co . . .ntrols versus 3.57 6 0.42 d for 400 mg/liter). Females from the control diet produced 9.46 6 0.57 (mean 6 SD) eggs per female, whereas those fed on a diet containing 300 mg/liter produced only 1.92 6 0.30 eggs per females. These results expand our knowledge of the impact of sodium tetraborate on various insects and indicate that boron compounds should be further investigated to ascertain their potential as an alternative control tactic for pest insects Daha fazlası Daha az