Antioxidative Defence Mechanisms in Tomato (Lycopersicum esculentum L.) Plants Sprayed with Different Pesticides and Boron compounds

Authors : Köksal KÜÇÜKAKYÜZ, Mahmut YILDIZTEKİN, Hasan Sungur CİVELEK, Said NADEEM, Atilla Levent TUNA

Pages : 200-209

Doi:10.21448/ijsm.450830

View : 24 | Download : 12

Publication Date : 2018-09-15

Article Type : Research Paper

Abstract :Oxidative stress was investigated in Lycopersicum esculentum L. by applying various pesticides and boron compounds for two years, near Ortaca-Muğla. The field sections were treated separately by commercial pesticides and boron compounds i.e. tarimbor insert ignore into journalissuearticles values(TB);, boric acid insert ignore into journalissuearticles values(BA);, laser insert ignore into journalissuearticles values(LA);, zoom insert ignore into journalissuearticles values(ZO); and admiral insert ignore into journalissuearticles values(AD);. During first year, boric acid insert ignore into journalissuearticles values(BA-1); caused highest increase in total chlorophyll insert ignore into journalissuearticles values(TCh); content insert ignore into journalissuearticles values(158.41 μg g-1); while the second dose insert ignore into journalissuearticles values(BA-2); decreased it insert ignore into journalissuearticles values(103.11 μg g-1);. During second year, higher doses of tarimbor insert ignore into journalissuearticles values(236.49 μg g-1); caused increase in total chlorophyll insert ignore into journalissuearticles values(TCh); while ZO treatment decreased it insert ignore into journalissuearticles values(142.55 μg g-1); insert ignore into journalissuearticles values(control: 149.55 μg g-1);. TB-1 caused the highest increase in proline content insert ignore into journalissuearticles values(33.52 nmol g-1); while highest reduction was observed in boric acid insert ignore into journalissuearticles values(BA-2); insert ignore into journalissuearticles values(22.51 nmol g-1); as compared to control group insert ignore into journalissuearticles values(26.77 nmol g-1);. During the first year, an increase of boric acid and tarimbor concentrations decreased malonaldehyde insert ignore into journalissuearticles values(MDA); while during the second year, both increases and decreases were observed in the MDA amount. Highest superoxide dismutase insert ignore into journalissuearticles values(SOD); amount was found in the first year ZO treated plants i.e. 70.35 unit SOD/mg protein while TB-1 treatment caused the highest decrease in the SOD amount i.e. 35.21 unit SOD/mg protein insert ignore into journalissuearticles values(control: 45.23 unit SOD/mg protein);.
Keywords : Lycopersicum esculentum L, Antioxidative enzymes, Malonaldehyde MDA, Boron stress, Pesticides